diff options
Diffstat (limited to 'drivers/iio')
396 files changed, 2692 insertions, 1944 deletions
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig index a22cbee593fe..5bd51853b15e 100644 --- a/drivers/iio/Kconfig +++ b/drivers/iio/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Industrial I/O subsystem configuration # @@ -27,7 +28,7 @@ config IIO_CONFIGFS help This allows configuring various IIO bits through configfs (e.g. software triggers). For more info see - Documentation/iio/iio_configfs.txt. + Documentation/iio/iio_configfs.rst. config IIO_TRIGGER bool "Enable triggered sampling support" diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index 62a970a20219..9b9656ce37e6 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Accelerometer drivers # diff --git a/drivers/iio/accel/adis16201.c b/drivers/iio/accel/adis16201.c index 4c1d482ea73a..c4810c73b2a2 100644 --- a/drivers/iio/accel/adis16201.c +++ b/drivers/iio/accel/adis16201.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer * * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/device.h> @@ -71,7 +70,7 @@ #define ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT 2 /* Power supply above 3.625 V */ #define ADIS16201_DIAG_STAT_POWER_HIGH_BIT 1 -/* Power supply below 3.15 V */ +/* Power supply below 2.975 V */ #define ADIS16201_DIAG_STAT_POWER_LOW_BIT 0 /* System Command Register Definition */ @@ -231,7 +230,7 @@ static const char * const adis16201_status_error_msgs[] = { [ADIS16201_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure", [ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT] = "Flash update failed", [ADIS16201_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V", - [ADIS16201_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V", + [ADIS16201_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 2.975V", }; static const struct adis_data adis16201_data = { diff --git a/drivers/iio/accel/adis16209.c b/drivers/iio/accel/adis16209.c index f2dc3a5f0463..98d77af8a2b0 100644 --- a/drivers/iio/accel/adis16209.c +++ b/drivers/iio/accel/adis16209.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer * * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/device.h> @@ -73,7 +72,7 @@ #define ADIS16209_STAT_FLASH_UPT_FAIL_BIT 2 /* Power supply above 3.625 V */ #define ADIS16209_STAT_POWER_HIGH_BIT 1 -/* Power supply below 3.15 V */ +/* Power supply below 2.975 V */ #define ADIS16209_STAT_POWER_LOW_BIT 0 #define ADIS16209_CMD_REG 0x3E @@ -241,7 +240,7 @@ static const char * const adis16209_status_error_msgs[] = { [ADIS16209_STAT_SPI_FAIL_BIT] = "SPI failure", [ADIS16209_STAT_FLASH_UPT_FAIL_BIT] = "Flash update failed", [ADIS16209_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V", - [ADIS16209_STAT_POWER_LOW_BIT] = "Power supply below 3.15V", + [ADIS16209_STAT_POWER_LOW_BIT] = "Power supply below 2.975V", }; static const struct adis_data adis16209_data = { diff --git a/drivers/iio/accel/adxl345.h b/drivers/iio/accel/adxl345.h index ccd63de7a55a..384497776b67 100644 --- a/drivers/iio/accel/adxl345.h +++ b/drivers/iio/accel/adxl345.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ADXL345 3-Axis Digital Accelerometer * * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> - * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. */ #ifndef _ADXL345_H_ diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c index f03ed00685ea..9c269799e6c1 100644 --- a/drivers/iio/accel/adxl345_core.c +++ b/drivers/iio/accel/adxl345_core.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADXL345 3-Axis Digital Accelerometer IIO core driver * * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Datasheet: http://www.analog.com/media/en/technical-documentation/data-sheets/ADXL345.pdf */ diff --git a/drivers/iio/accel/adxl345_i2c.c b/drivers/iio/accel/adxl345_i2c.c index f22f71315a0c..1561364ae296 100644 --- a/drivers/iio/accel/adxl345_i2c.c +++ b/drivers/iio/accel/adxl345_i2c.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADXL345 3-Axis Digital Accelerometer I2C driver * * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or * 0x53 (ALT ADDRESS pin grounded) */ diff --git a/drivers/iio/accel/adxl345_spi.c b/drivers/iio/accel/adxl345_spi.c index 67b7c66a8492..da4591c7ef23 100644 --- a/drivers/iio/accel/adxl345_spi.c +++ b/drivers/iio/accel/adxl345_spi.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADXL345 3-Axis Digital Accelerometer SPI driver * * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> - * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. */ #include <linux/module.h> diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c index 3b84cb243a87..055227cb3d43 100644 --- a/drivers/iio/accel/adxl372.c +++ b/drivers/iio/accel/adxl372.c @@ -782,10 +782,14 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev) unsigned int mask; int i, ret; - ret = adxl372_set_interrupts(st, ADXL372_INT1_MAP_FIFO_FULL_MSK, 0); + ret = iio_triggered_buffer_postenable(indio_dev); if (ret < 0) return ret; + ret = adxl372_set_interrupts(st, ADXL372_INT1_MAP_FIFO_FULL_MSK, 0); + if (ret < 0) + goto err; + mask = *indio_dev->active_scan_mask; for (i = 0; i < ARRAY_SIZE(adxl372_axis_lookup_table); i++) { @@ -793,8 +797,10 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev) break; } - if (i == ARRAY_SIZE(adxl372_axis_lookup_table)) - return -EINVAL; + if (i == ARRAY_SIZE(adxl372_axis_lookup_table)) { + ret = -EINVAL; + goto err; + } st->fifo_format = adxl372_axis_lookup_table[i].fifo_format; st->fifo_set_size = bitmap_weight(indio_dev->active_scan_mask, @@ -814,26 +820,25 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev) if (ret < 0) { st->fifo_mode = ADXL372_FIFO_BYPASSED; adxl372_set_interrupts(st, 0, 0); - return ret; + goto err; } - return iio_triggered_buffer_postenable(indio_dev); + return 0; + +err: + iio_triggered_buffer_predisable(indio_dev); + return ret; } static int adxl372_buffer_predisable(struct iio_dev *indio_dev) { struct adxl372_state *st = iio_priv(indio_dev); - int ret; - - ret = iio_triggered_buffer_predisable(indio_dev); - if (ret < 0) - return ret; adxl372_set_interrupts(st, 0, 0); st->fifo_mode = ADXL372_FIFO_BYPASSED; adxl372_configure_fifo(st); - return 0; + return iio_triggered_buffer_predisable(indio_dev); } static const struct iio_buffer_setup_ops adxl372_buffer_ops = { diff --git a/drivers/iio/accel/adxl372_spi.c b/drivers/iio/accel/adxl372_spi.c index e14e655ef165..3ef7e3a4804e 100644 --- a/drivers/iio/accel/adxl372_spi.c +++ b/drivers/iio/accel/adxl372_spi.c @@ -7,6 +7,8 @@ #include <linux/module.h> #include <linux/regmap.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <linux/spi/spi.h> #include "adxl372.h" @@ -37,9 +39,16 @@ static const struct spi_device_id adxl372_spi_id[] = { }; MODULE_DEVICE_TABLE(spi, adxl372_spi_id); +static const struct of_device_id adxl372_of_match[] = { + { .compatible = "adi,adxl372" }, + { }, +}; +MODULE_DEVICE_TABLE(of, adxl372_of_match); + static struct spi_driver adxl372_spi_driver = { .driver = { .name = "adxl372_spi", + .of_match_table = adxl372_of_match, }, .probe = adxl372_spi_probe, .id_table = adxl372_spi_id, diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index f9720a1e8a7c..1574e4604a4f 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * bma180.c - IIO driver for Bosch BMA180 triaxial acceleration sensor * @@ -5,10 +6,6 @@ * * Support for BMA250 (c) Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * SPI is not supported by driver * BMA180: 7-bit I2C slave address 0x40 or 0x41 * BMA250: 7-bit I2C slave address 0x18 or 0x19 diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c index e25d91c017ed..cae905039cb6 100644 --- a/drivers/iio/accel/bma220_spi.c +++ b/drivers/iio/accel/bma220_spi.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * BMA220 Digital triaxial acceleration sensor driver * * Copyright (c) 2016, Intel Corporation. - * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. */ #include <linux/acpi.h> diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index 44d7c49fe2a1..cf6c0e3a83d3 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * 3-axis accelerometer driver supporting following Bosch-Sensortec chips: * - BMC150 @@ -8,15 +9,6 @@ * - BMA280 * * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/accel/bmc150-accel-i2c.c b/drivers/iio/accel/bmc150-accel-i2c.c index 8ffc308d5fd0..06021c8685a7 100644 --- a/drivers/iio/accel/bmc150-accel-i2c.c +++ b/drivers/iio/accel/bmc150-accel-i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * 3-axis accelerometer driver supporting following I2C Bosch-Sensortec chips: * - BMC150 @@ -8,15 +9,6 @@ * - BMA280 * * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/device.h> diff --git a/drivers/iio/accel/bmc150-accel-spi.c b/drivers/iio/accel/bmc150-accel-spi.c index 006794a70a1f..2a8c311d6f5a 100644 --- a/drivers/iio/accel/bmc150-accel-spi.c +++ b/drivers/iio/accel/bmc150-accel-spi.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * 3-axis accelerometer driver supporting SPI Bosch-Sensortec accelerometer chip * Copyright © 2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/device.h> diff --git a/drivers/iio/accel/da280.c b/drivers/iio/accel/da280.c index d4b555203427..227bea2d738b 100644 --- a/drivers/iio/accel/da280.c +++ b/drivers/iio/accel/da280.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * IIO driver for the MiraMEMS DA280 3-axis accelerometer and * IIO driver for the MiraMEMS DA226 2-axis accelerometer * * Copyright (c) 2016 Hans de Goede <hdegoede@redhat.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/accel/da311.c b/drivers/iio/accel/da311.c index aa64bca00955..c20979249a48 100644 --- a/drivers/iio/accel/da311.c +++ b/drivers/iio/accel/da311.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * IIO driver for the MiraMEMS DA311 3-axis accelerometer * * Copyright (c) 2016 Hans de Goede <hdegoede@redhat.com> * Copyright (c) 2011-2013 MiraMEMS Sensing Technology Co., Ltd. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/accel/dmard06.c b/drivers/iio/accel/dmard06.c index d87e2c751475..2bf210fa4ba6 100644 --- a/drivers/iio/accel/dmard06.c +++ b/drivers/iio/accel/dmard06.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO driver for Domintech DMARD06 accelerometer * * Copyright (C) 2016 Aleksei Mamlin <mamlinav@gmail.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/accel/dmard09.c b/drivers/iio/accel/dmard09.c index 16a7e74f5e9a..2d666cd69b29 100644 --- a/drivers/iio/accel/dmard09.c +++ b/drivers/iio/accel/dmard09.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO driver for the 3-axis accelerometer Domintech DMARD09. * * Copyright (c) 2016, Jelle van der Waa <jelle@vdwaa.nl> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <asm/unaligned.h> diff --git a/drivers/iio/accel/dmard10.c b/drivers/iio/accel/dmard10.c index 9518ea00167e..71c852b8bb3e 100644 --- a/drivers/iio/accel/dmard10.c +++ b/drivers/iio/accel/dmard10.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * IIO driver for the 3-axis accelerometer Domintech ARD10. * * Copyright (c) 2016 Hans de Goede <hdegoede@redhat.com> * Copyright (c) 2012 Domintech Technology Co., Ltd - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c index 38ff374a3ca4..0d9e2def2b25 100644 --- a/drivers/iio/accel/hid-sensor-accel-3d.c +++ b/drivers/iio/accel/hid-sensor-accel-3d.c @@ -1,20 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index 2922a2e88a1b..6645771aa349 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * KXCJK-1013 3-axis accelerometer driver * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> @@ -1495,6 +1487,7 @@ static const struct acpi_device_id kx_acpi_match[] = { {"KIOX0009", KXTJ21009}, {"KIOX000A", KXCJ91008}, {"KIOX010A", KXCJ91008}, /* KXCJ91008 inside the display of a 2-in-1 */ + {"KIOX020A", KXCJ91008}, {"KXTJ1009", KXTJ21009}, {"KXJ2109", KXTJ21009}, {"SMO8500", KXCJ91008}, diff --git a/drivers/iio/accel/kxsd9-spi.c b/drivers/iio/accel/kxsd9-spi.c index b7d0078fd00e..7971ec1eeb7e 100644 --- a/drivers/iio/accel/kxsd9-spi.c +++ b/drivers/iio/accel/kxsd9-spi.c @@ -1,5 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/device.h> #include <linux/kernel.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <linux/spi/spi.h> #include <linux/module.h> #include <linux/slab.h> @@ -40,10 +43,17 @@ static const struct spi_device_id kxsd9_spi_id[] = { }; MODULE_DEVICE_TABLE(spi, kxsd9_spi_id); +static const struct of_device_id kxsd9_of_match[] = { + { .compatible = "kionix,kxsd9" }, + { }, +}; +MODULE_DEVICE_TABLE(of, kxsd9_of_match); + static struct spi_driver kxsd9_spi_driver = { .driver = { .name = "kxsd9", .pm = &kxsd9_dev_pm_ops, + .of_match_table = kxsd9_of_match, }, .probe = kxsd9_spi_probe, .remove = kxsd9_spi_remove, diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c index 70c60db62247..0b876b2dc5bd 100644 --- a/drivers/iio/accel/kxsd9.c +++ b/drivers/iio/accel/kxsd9.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * kxsd9.c simple support for the Kionix KXSD9 3D * accelerometer. * * Copyright (c) 2008-2009 Jonathan Cameron <jic23@kernel.org> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * The i2c interface is very similar, so shouldn't be a problem once * I have a suitable wire made up. * diff --git a/drivers/iio/accel/mc3230.c b/drivers/iio/accel/mc3230.c index 8b11604eed63..02b3d25b3d96 100644 --- a/drivers/iio/accel/mc3230.c +++ b/drivers/iio/accel/mc3230.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /** * mCube MC3230 3-Axis Accelerometer * * Copyright (c) 2016 Hans de Goede <hdegoede@redhat.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * * IIO driver for mCube MC3230; 7-bit I2C address: 0x4c. */ diff --git a/drivers/iio/accel/mma7455.h b/drivers/iio/accel/mma7455.h index 2b1152c53d4f..4e3fa988f690 100644 --- a/drivers/iio/accel/mma7455.h +++ b/drivers/iio/accel/mma7455.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * IIO accel driver for Freescale MMA7455L 3-axis 10-bit accelerometer * Copyright 2015 Joachim Eastwood <manabian@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __MMA7455_H diff --git a/drivers/iio/accel/mma7455_core.c b/drivers/iio/accel/mma7455_core.c index da0ceaac46b5..8b5a6aff9bf4 100644 --- a/drivers/iio/accel/mma7455_core.c +++ b/drivers/iio/accel/mma7455_core.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO accel core driver for Freescale MMA7455L 3-axis 10-bit accelerometer * Copyright 2015 Joachim Eastwood <manabian@gmail.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * UNSUPPORTED hardware features: * - 8-bit mode with different scales * - INT1/INT2 interrupts diff --git a/drivers/iio/accel/mma7455_i2c.c b/drivers/iio/accel/mma7455_i2c.c index 73bf81a8ab14..cddeaa9e230a 100644 --- a/drivers/iio/accel/mma7455_i2c.c +++ b/drivers/iio/accel/mma7455_i2c.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO accel I2C driver for Freescale MMA7455L 3-axis 10-bit accelerometer * Copyright 2015 Joachim Eastwood <manabian@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/i2c.h> diff --git a/drivers/iio/accel/mma7455_spi.c b/drivers/iio/accel/mma7455_spi.c index 79df8f27cf99..eb82cdfa8abc 100644 --- a/drivers/iio/accel/mma7455_spi.c +++ b/drivers/iio/accel/mma7455_spi.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO accel SPI driver for Freescale MMA7455L 3-axis 10-bit accelerometer * Copyright 2015 Joachim Eastwood <manabian@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/accel/mma7660.c b/drivers/iio/accel/mma7660.c index f1a13724efb3..7faf6d8657ae 100644 --- a/drivers/iio/accel/mma7660.c +++ b/drivers/iio/accel/mma7660.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Freescale MMA7660FC 3-Axis Accelerometer * * Copyright (c) 2016, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for Freescale MMA7660FC; 7-bit I2C address: 0x4c. */ diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c index da7c21504f38..99e4a21ca942 100644 --- a/drivers/iio/accel/mma9551.c +++ b/drivers/iio/accel/mma9551.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Freescale MMA9551L Intelligent Motion-Sensing Platform driver * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/accel/mma9551_core.c b/drivers/iio/accel/mma9551_core.c index c34c5ce8123b..666e7a04a7d7 100644 --- a/drivers/iio/accel/mma9551_core.c +++ b/drivers/iio/accel/mma9551_core.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Common code for Freescale MMA955x Intelligent Sensor Platform drivers * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/accel/mma9551_core.h b/drivers/iio/accel/mma9551_core.h index 5e88e6454dfd..543454a31dc0 100644 --- a/drivers/iio/accel/mma9551_core.h +++ b/drivers/iio/accel/mma9551_core.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Common code for Freescale MMA955x Intelligent Sensor Platform drivers * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef _MMA9551_CORE_H_ diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c index b52a3f182190..312070dcf035 100644 --- a/drivers/iio/accel/mma9553.c +++ b/drivers/iio/accel/mma9553.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Freescale MMA9553L Intelligent Pedometer driver * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c index 58099e40d717..637e6e676061 100644 --- a/drivers/iio/accel/mxc4005.c +++ b/drivers/iio/accel/mxc4005.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * 3-axis accelerometer driver for MXC4005XC Memsic sensor * * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/accel/mxc6255.c b/drivers/iio/accel/mxc6255.c index ddd50d1781c5..f532f8643aa4 100644 --- a/drivers/iio/accel/mxc6255.c +++ b/drivers/iio/accel/mxc6255.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * MXC6255 - MEMSIC orientation sensing accelerometer * * Copyright (c) 2015, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for MXC6255 (7-bit I2C slave address 0x15). */ diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c index 4964561595f5..a923f90f6e80 100644 --- a/drivers/iio/accel/sca3000.c +++ b/drivers/iio/accel/sca3000.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * sca3000_core.c -- support VTI sca3000 series accelerometers via SPI * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org> * * See industrialio/accels/sca3000.h for comments. @@ -872,8 +869,9 @@ static int sca3000_read_event_value(struct iio_dev *indio_dev, enum iio_event_info info, int *val, int *val2) { - int ret, i; struct sca3000_state *st = iio_priv(indio_dev); + long ret; + int i; switch (info) { case IIO_EV_INFO_VALUE: @@ -885,11 +883,11 @@ static int sca3000_read_event_value(struct iio_dev *indio_dev, return ret; *val = 0; if (chan->channel2 == IIO_MOD_Y) - for_each_set_bit(i, (unsigned long *)&ret, + for_each_set_bit(i, &ret, ARRAY_SIZE(st->info->mot_det_mult_y)) *val += st->info->mot_det_mult_y[i]; else - for_each_set_bit(i, (unsigned long *)&ret, + for_each_set_bit(i, &ret, ARRAY_SIZE(st->info->mot_det_mult_xz)) *val += st->info->mot_det_mult_xz[i]; diff --git a/drivers/iio/accel/ssp_accel_sensor.c b/drivers/iio/accel/ssp_accel_sensor.c index dd6ece8f9239..c32647abce20 100644 --- a/drivers/iio/accel/ssp_accel_sensor.c +++ b/drivers/iio/accel/ssp_accel_sensor.c @@ -1,16 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/iio/common/ssp_sensors.h> diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h index 9d25955af58e..979ab9679b99 100644 --- a/drivers/iio/accel/st_accel.h +++ b/drivers/iio/accel/st_accel.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics accelerometers driver * @@ -5,7 +6,6 @@ * * Denis Ciocca <denis.ciocca@st.com> * v. 1.0.0 - * Licensed under the GPL-2. */ #ifndef ST_ACCEL_H diff --git a/drivers/iio/accel/st_accel_buffer.c b/drivers/iio/accel/st_accel_buffer.c index 7fddc137e91e..0205c0167cdd 100644 --- a/drivers/iio/accel/st_accel_buffer.c +++ b/drivers/iio/accel/st_accel_buffer.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics accelerometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/module.h> @@ -46,17 +45,19 @@ static int st_accel_buffer_postenable(struct iio_dev *indio_dev) goto allocate_memory_error; } - err = st_sensors_set_axis_enable(indio_dev, - (u8)indio_dev->active_scan_mask[0]); + err = iio_triggered_buffer_postenable(indio_dev); if (err < 0) goto st_accel_buffer_postenable_error; - err = iio_triggered_buffer_postenable(indio_dev); + err = st_sensors_set_axis_enable(indio_dev, + (u8)indio_dev->active_scan_mask[0]); if (err < 0) - goto st_accel_buffer_postenable_error; + goto st_sensors_set_axis_enable_error; return err; +st_sensors_set_axis_enable_error: + iio_triggered_buffer_predisable(indio_dev); st_accel_buffer_postenable_error: kfree(adata->buffer_data); allocate_memory_error: @@ -65,20 +66,22 @@ allocate_memory_error: static int st_accel_buffer_predisable(struct iio_dev *indio_dev) { - int err; + int err, err2; struct st_sensor_data *adata = iio_priv(indio_dev); - err = iio_triggered_buffer_predisable(indio_dev); - if (err < 0) - goto st_accel_buffer_predisable_error; - err = st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS); if (err < 0) goto st_accel_buffer_predisable_error; err = st_sensors_set_enable(indio_dev, false); + if (err < 0) + goto st_accel_buffer_predisable_error; st_accel_buffer_predisable_error: + err2 = iio_triggered_buffer_predisable(indio_dev); + if (!err) + err = err2; + kfree(adata->buffer_data); return err; } diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index 5ff04d9755d5..e02b79931979 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics accelerometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c index 4e54477ccf24..c3c8f2e73c2a 100644 --- a/drivers/iio/accel/st_accel_i2c.c +++ b/drivers/iio/accel/st_accel_i2c.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics accelerometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c index 73bfb5d04e2b..474742e35d92 100644 --- a/drivers/iio/accel/st_accel_spi.c +++ b/drivers/iio/accel/st_accel_spi.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics accelerometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/accel/stk8312.c b/drivers/iio/accel/stk8312.c index cacc0da2f874..58c160ccdee7 100644 --- a/drivers/iio/accel/stk8312.c +++ b/drivers/iio/accel/stk8312.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Sensortek STK8312 3-Axis Accelerometer * * Copyright (c) 2015, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for STK8312; 7-bit I2C address: 0x3D. */ diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c index 576b6b140f08..c70ddec29eb4 100644 --- a/drivers/iio/accel/stk8ba50.c +++ b/drivers/iio/accel/stk8ba50.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Sensortek STK8BA50 3-Axis Accelerometer * * Copyright (c) 2015, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * STK8BA50 7-bit I2C address: 0x18. */ diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 2036eca546fd..7e3286265a38 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # ADC drivers # @@ -1084,7 +1085,6 @@ config VIPERBOARD_ADC config XILINX_XADC tristate "Xilinx XADC driver" - depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST depends on HAS_IOMEM select IIO_BUFFER select IIO_TRIGGERED_BUFFER diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c index 659ef37d5fe8..edc6f1cc90b2 100644 --- a/drivers/iio/adc/ad7124.c +++ b/drivers/iio/adc/ad7124.c @@ -61,6 +61,8 @@ #define AD7124_CONFIG_REF_SEL(x) FIELD_PREP(AD7124_CONFIG_REF_SEL_MSK, x) #define AD7124_CONFIG_PGA_MSK GENMASK(2, 0) #define AD7124_CONFIG_PGA(x) FIELD_PREP(AD7124_CONFIG_PGA_MSK, x) +#define AD7124_CONFIG_IN_BUFF_MSK GENMASK(7, 6) +#define AD7124_CONFIG_IN_BUFF(x) FIELD_PREP(AD7124_CONFIG_IN_BUFF_MSK, x) /* AD7124_FILTER_X */ #define AD7124_FILTER_FS_MSK GENMASK(10, 0) @@ -108,6 +110,8 @@ struct ad7124_chip_info { struct ad7124_channel_config { enum ad7124_ref_sel refsel; bool bipolar; + bool buf_positive; + bool buf_negative; unsigned int ain; unsigned int vref_mv; unsigned int pga_bits; @@ -117,7 +121,7 @@ struct ad7124_channel_config { struct ad7124_state { const struct ad7124_chip_info *chip_info; struct ad_sigma_delta sd; - struct ad7124_channel_config channel_config[4]; + struct ad7124_channel_config *channel_config; struct regulator *vref[4]; struct clk *mclk; unsigned int adc_control; @@ -435,6 +439,7 @@ static int ad7124_of_parse_channel_config(struct iio_dev *indio_dev, struct ad7124_state *st = iio_priv(indio_dev); struct device_node *child; struct iio_chan_spec *chan; + struct ad7124_channel_config *chan_config; unsigned int ain[2], channel = 0, tmp; int ret; @@ -449,8 +454,14 @@ static int ad7124_of_parse_channel_config(struct iio_dev *indio_dev, if (!chan) return -ENOMEM; + chan_config = devm_kcalloc(indio_dev->dev.parent, st->num_channels, + sizeof(*chan_config), GFP_KERNEL); + if (!chan_config) + return -ENOMEM; + indio_dev->channels = chan; indio_dev->num_channels = st->num_channels; + st->channel_config = chan_config; for_each_available_child_of_node(np, child) { ret = of_property_read_u32(child, "reg", &channel); @@ -462,13 +473,6 @@ static int ad7124_of_parse_channel_config(struct iio_dev *indio_dev, if (ret) goto err; - if (ain[0] >= st->chip_info->num_inputs || - ain[1] >= st->chip_info->num_inputs) { - dev_err(indio_dev->dev.parent, - "Input pin number out of range.\n"); - ret = -EINVAL; - goto err; - } st->channel_config[channel].ain = AD7124_CHANNEL_AINP(ain[0]) | AD7124_CHANNEL_AINM(ain[1]); st->channel_config[channel].bipolar = @@ -480,6 +484,11 @@ static int ad7124_of_parse_channel_config(struct iio_dev *indio_dev, else st->channel_config[channel].refsel = tmp; + st->channel_config[channel].buf_positive = + of_property_read_bool(child, "adi,buffered-positive"); + st->channel_config[channel].buf_negative = + of_property_read_bool(child, "adi,buffered-negative"); + *chan = ad7124_channel_template; chan->address = channel; chan->scan_index = channel; @@ -499,7 +508,7 @@ err: static int ad7124_setup(struct ad7124_state *st) { unsigned int val, fclk, power_mode; - int i, ret; + int i, ret, tmp; fclk = clk_get_rate(st->mclk); if (!fclk) @@ -532,8 +541,12 @@ static int ad7124_setup(struct ad7124_state *st) if (ret < 0) return ret; + tmp = (st->channel_config[i].buf_positive << 1) + + st->channel_config[i].buf_negative; + val = AD7124_CONFIG_BIPOLAR(st->channel_config[i].bipolar) | - AD7124_CONFIG_REF_SEL(st->channel_config[i].refsel); + AD7124_CONFIG_REF_SEL(st->channel_config[i].refsel) | + AD7124_CONFIG_IN_BUFF(tmp); ret = ad_sd_write_reg(&st->sd, AD7124_CONFIG(i), 2, val); if (ret < 0) return ret; diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index 605eb5e7e829..c31b8eabb894 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD7266/65 SPI ADC driver * * Copyright 2012 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/adc/ad7291.c b/drivers/iio/adc/ad7291.c index a862b5d8fb4b..b2b137fed246 100644 --- a/drivers/iio/adc/ad7291.c +++ b/drivers/iio/adc/ad7291.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * AD7291 8-Channel, I2C, 12-Bit SAR ADC with Temperature Sensor * * Copyright 2010-2011 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/device.h> diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c index e0220825fde0..dc8d8c5f6ad3 100644 --- a/drivers/iio/adc/ad7298.c +++ b/drivers/iio/adc/ad7298.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD7298 SPI ADC driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c index 24c70c3cefb4..aba0fd123a51 100644 --- a/drivers/iio/adc/ad7606.c +++ b/drivers/iio/adc/ad7606.c @@ -140,7 +140,7 @@ static int ad7606_read_raw(struct iio_dev *indio_dev, int *val2, long m) { - int ret; + int ret, ch = 0; struct ad7606_state *st = iio_priv(indio_dev); switch (m) { @@ -157,8 +157,10 @@ static int ad7606_read_raw(struct iio_dev *indio_dev, *val = (short)ret; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: + if (st->sw_mode_en) + ch = chan->address; *val = 0; - *val2 = st->scale_avail[st->range]; + *val2 = st->scale_avail[st->range[ch]]; return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_OVERSAMPLING_RATIO: *val = st->oversampling; @@ -194,6 +196,32 @@ static ssize_t in_voltage_scale_available_show(struct device *dev, static IIO_DEVICE_ATTR_RO(in_voltage_scale_available, 0); +static int ad7606_write_scale_hw(struct iio_dev *indio_dev, int ch, int val) +{ + struct ad7606_state *st = iio_priv(indio_dev); + + gpiod_set_value(st->gpio_range, val); + + return 0; +} + +static int ad7606_write_os_hw(struct iio_dev *indio_dev, int val) +{ + struct ad7606_state *st = iio_priv(indio_dev); + DECLARE_BITMAP(values, 3); + + values[0] = val; + + gpiod_set_array_value(ARRAY_SIZE(values), st->gpio_os->desc, + st->gpio_os->info, values); + + /* AD7616 requires a reset to update value */ + if (st->chip_info->os_req_reset) + ad7606_reset(st); + + return 0; +} + static int ad7606_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, @@ -201,15 +229,20 @@ static int ad7606_write_raw(struct iio_dev *indio_dev, long mask) { struct ad7606_state *st = iio_priv(indio_dev); - DECLARE_BITMAP(values, 3); - int i; + int i, ret, ch = 0; switch (mask) { case IIO_CHAN_INFO_SCALE: mutex_lock(&st->lock); i = find_closest(val2, st->scale_avail, st->num_scales); - gpiod_set_value(st->gpio_range, i); - st->range = i; + if (st->sw_mode_en) + ch = chan->address; + ret = st->write_scale(indio_dev, ch, i); + if (ret < 0) { + mutex_unlock(&st->lock); + return ret; + } + st->range[ch] = i; mutex_unlock(&st->lock); return 0; @@ -218,17 +251,12 @@ static int ad7606_write_raw(struct iio_dev *indio_dev, return -EINVAL; i = find_closest(val, st->oversampling_avail, st->num_os_ratios); - - values[0] = i; - mutex_lock(&st->lock); - gpiod_set_array_value(ARRAY_SIZE(values), st->gpio_os->desc, - st->gpio_os->info, values); - - /* AD7616 requires a reset to update value */ - if (st->chip_info->os_req_reset) - ad7606_reset(st); - + ret = st->write_os(indio_dev, i); + if (ret < 0) { + mutex_unlock(&st->lock); + return ret; + } st->oversampling = st->oversampling_avail[i]; mutex_unlock(&st->lock); @@ -536,7 +564,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, st->bops = bops; st->base_address = base_address; /* tied to logic low, analog input range is +/- 5V */ - st->range = 0; + st->range[0] = 0; st->oversampling = 1; st->scale_avail = ad7606_scale_avail; st->num_scales = ARRAY_SIZE(ad7606_scale_avail); @@ -589,6 +617,39 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, if (ret) dev_warn(st->dev, "failed to RESET: no RESET GPIO specified\n"); + st->write_scale = ad7606_write_scale_hw; + st->write_os = ad7606_write_os_hw; + + if (st->chip_info->sw_mode_config) + st->sw_mode_en = device_property_present(st->dev, + "adi,sw-mode"); + + if (st->sw_mode_en) { + /* After reset, in software mode, ±10 V is set by default */ + memset32(st->range, 2, ARRAY_SIZE(st->range)); + indio_dev->info = &ad7606_info_os_and_range; + + /* + * In software mode, the range gpio has no longer its function. + * Instead, the scale can be configured individually for each + * channel from the range registers. + */ + if (st->chip_info->write_scale_sw) + st->write_scale = st->chip_info->write_scale_sw; + + /* + * In software mode, the oversampling is no longer configured + * with GPIO pins. Instead, the oversampling can be configured + * in configuratiion register. + */ + if (st->chip_info->write_os_sw) + st->write_os = st->chip_info->write_os_sw; + + ret = st->chip_info->sw_mode_config(indio_dev); + if (ret < 0) + return ret; + } + st->trig = devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name, indio_dev->id); if (!st->trig) @@ -643,7 +704,7 @@ static int ad7606_resume(struct device *dev) struct ad7606_state *st = iio_priv(indio_dev); if (st->gpio_standby) { - gpiod_set_value(st->gpio_range, st->range); + gpiod_set_value(st->gpio_range, st->range[0]); gpiod_set_value(st->gpio_standby, 1); ad7606_reset(st); } diff --git a/drivers/iio/adc/ad7606.h b/drivers/iio/adc/ad7606.h index f9ef52131e74..d8a509c2c428 100644 --- a/drivers/iio/adc/ad7606.h +++ b/drivers/iio/adc/ad7606.h @@ -16,6 +16,12 @@ * oversampling ratios. * @oversampling_num number of elements stored in oversampling_avail array * @os_req_reset some devices require a reset to update oversampling + * @write_scale_sw pointer to the function which writes the scale via spi + in software mode + * @write_os_sw pointer to the function which writes the os via spi + in software mode + * @sw_mode_config: pointer to a function which configured the device + * for software mode */ struct ad7606_chip_info { const struct iio_chan_spec *channels; @@ -23,6 +29,9 @@ struct ad7606_chip_info { const unsigned int *oversampling_avail; unsigned int oversampling_num; bool os_req_reset; + int (*write_scale_sw)(struct iio_dev *indio_dev, int ch, int val); + int (*write_os_sw)(struct iio_dev *indio_dev, int val); + int (*sw_mode_config)(struct iio_dev *indio_dev); }; /** @@ -34,11 +43,14 @@ struct ad7606_chip_info { * @range voltage range selection, selects which scale to apply * @oversampling oversampling selection * @base_address address from where to read data in parallel operation + * @sw_mode_en software mode enabled * @scale_avail pointer to the array which stores the available scales * @num_scales number of elements stored in the scale_avail array * @oversampling_avail pointer to the array which stores the available * oversampling ratios. * @num_os_ratios number of elements stored in oversampling_avail array + * @write_scale pointer to the function which writes the scale + * @write_os pointer to the function which writes the os * @lock protect sensor state from concurrent accesses to GPIOs * @gpio_convst GPIO descriptor for conversion start signal (CONVST) * @gpio_reset GPIO descriptor for device hard-reset @@ -57,13 +69,16 @@ struct ad7606_state { const struct ad7606_chip_info *chip_info; struct regulator *reg; const struct ad7606_bus_ops *bops; - unsigned int range; + unsigned int range[16]; unsigned int oversampling; void __iomem *base_address; + bool sw_mode_en; const unsigned int *scale_avail; unsigned int num_scales; const unsigned int *oversampling_avail; unsigned int num_os_ratios; + int (*write_scale)(struct iio_dev *indio_dev, int ch, int val); + int (*write_os)(struct iio_dev *indio_dev, int val); struct mutex lock; /* protect sensor state */ struct gpio_desc *gpio_convst; diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c index 3ae14fc8c649..bc388ea41754 100644 --- a/drivers/iio/adc/ad7766.c +++ b/drivers/iio/adc/ad7766.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * AD7766/AD7767 SPI ADC driver * * Copyright 2016 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/clk.h> diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c index a9ff0695ddf7..54025ea10239 100644 --- a/drivers/iio/adc/ad7791.c +++ b/drivers/iio/adc/ad7791.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD7787/AD7788/AD7789/AD7790/AD7791 SPI ADC driver * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c index 4ac3ae62f56f..bbc41ecf0d2f 100644 --- a/drivers/iio/adc/ad7793.c +++ b/drivers/iio/adc/ad7793.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD7785/AD7792/AD7793/AD7794/AD7795 SPI ADC driver * * Copyright 2011-2012 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c index 9d4c2467d362..6223043e432b 100644 --- a/drivers/iio/adc/ad7887.c +++ b/drivers/iio/adc/ad7887.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD7887 SPI ADC driver * * Copyright 2010-2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c index cb7b854df00c..3212eb4c0f25 100644 --- a/drivers/iio/adc/ad7923.c +++ b/drivers/iio/adc/ad7923.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD7904/AD7914/AD7923/AD7924 SPI ADC driver * * Copyright 2011 Analog Devices Inc (from AD7923 Driver) * Copyright 2012 CS Systemes d'Information - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c index 7a5b5d00a87d..5a3ca5904ded 100644 --- a/drivers/iio/adc/ad799x.c +++ b/drivers/iio/adc/ad799x.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * iio/adc/ad799x.c * Copyright (C) 2010-2011 Michael Hennerich, Analog Devices Inc. @@ -11,15 +12,10 @@ * based on linux/drivers/acron/char/pcf8583.c * Copyright (C) 2000 Russell King * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * ad799x.c * * Support for ad7991, ad7995, ad7999, ad7992, ad7993, ad7994, ad7997, * ad7998 and similar chips. - * */ #include <linux/interrupt.h> diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c index a4310600a853..2640b75fb774 100644 --- a/drivers/iio/adc/ad_sigma_delta.c +++ b/drivers/iio/adc/ad_sigma_delta.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Support code for Analog Devices Sigma-Delta ADCs * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> @@ -358,7 +357,7 @@ static int ad_sd_buffer_postenable(struct iio_dev *indio_dev) ret = ad_sigma_delta_set_channel(sigma_delta, indio_dev->channels[channel].address); if (ret) - goto err_predisable; + return ret; spi_bus_lock(sigma_delta->spi->master); sigma_delta->bus_locked = true; @@ -375,7 +374,6 @@ static int ad_sd_buffer_postenable(struct iio_dev *indio_dev) err_unlock: spi_bus_unlock(sigma_delta->spi->master); -err_predisable: return ret; } diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c index 9515ca165dfd..d3fc39df535d 100644 --- a/drivers/iio/adc/aspeed_adc.c +++ b/drivers/iio/adc/aspeed_adc.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Aspeed AST2400/2500 ADC * * Copyright (C) 2017 Google, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * */ #include <linux/clk.h> diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index d5ea84cf6460..a2837a0e7cba 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Atmel ADC driver for SAMA5D2 devices and compatible. * * Copyright (C) 2015 Atmel, * 2015 Ludovic Desroches <ludovic.desroches@atmel.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/bitops.h> @@ -1586,8 +1578,7 @@ static void at91_adc_hw_init(struct at91_adc_state *st) static ssize_t at91_adc_get_fifo_state(struct device *dev, struct device_attribute *attr, char *buf) { - struct iio_dev *indio_dev = - platform_get_drvdata(to_platform_device(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct at91_adc_state *st = iio_priv(indio_dev); return scnprintf(buf, PAGE_SIZE, "%d\n", !!st->dma_st.dma_chan); @@ -1596,8 +1587,7 @@ static ssize_t at91_adc_get_fifo_state(struct device *dev, static ssize_t at91_adc_get_watermark(struct device *dev, struct device_attribute *attr, char *buf) { - struct iio_dev *indio_dev = - platform_get_drvdata(to_platform_device(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct at91_adc_state *st = iio_priv(indio_dev); return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark); @@ -1849,8 +1839,7 @@ static int at91_adc_remove(struct platform_device *pdev) static __maybe_unused int at91_adc_suspend(struct device *dev) { - struct iio_dev *indio_dev = - platform_get_drvdata(to_platform_device(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct at91_adc_state *st = iio_priv(indio_dev); /* @@ -1870,8 +1859,7 @@ static __maybe_unused int at91_adc_suspend(struct device *dev) static __maybe_unused int at91_adc_resume(struct device *dev) { - struct iio_dev *indio_dev = - platform_get_drvdata(to_platform_device(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct at91_adc_state *st = iio_priv(indio_dev); int ret; diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 596841a3c4db..32f1c4a33b20 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for the ADC present in the Atmel AT91 evaluation boards. * * Copyright 2011 Free Electrons - * - * Licensed under the GPLv2 or later. */ #include <linux/bitmap.h> @@ -1360,7 +1359,7 @@ static int at91_adc_remove(struct platform_device *pdev) #ifdef CONFIG_PM_SLEEP static int at91_adc_suspend(struct device *dev) { - struct iio_dev *idev = platform_get_drvdata(to_platform_device(dev)); + struct iio_dev *idev = dev_get_drvdata(dev); struct at91_adc_state *st = iio_priv(idev); pinctrl_pm_select_sleep_state(dev); @@ -1371,7 +1370,7 @@ static int at91_adc_suspend(struct device *dev) static int at91_adc_resume(struct device *dev) { - struct iio_dev *idev = platform_get_drvdata(to_platform_device(dev)); + struct iio_dev *idev = dev_get_drvdata(dev); struct at91_adc_state *st = iio_priv(idev); clk_prepare_enable(st->clk); diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c index 5be789269353..88059480da17 100644 --- a/drivers/iio/adc/axp20x_adc.c +++ b/drivers/iio/adc/axp20x_adc.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* ADC driver for AXP20X and AXP22X PMICs * * Copyright (c) 2016 Free Electrons NextThing Co. * Quentin Schulz <quentin.schulz@free-electrons.com> - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. */ #include <linux/completion.h> diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c index 4e339cfd0c54..31d51bcc5f2c 100644 --- a/drivers/iio/adc/axp288_adc.c +++ b/drivers/iio/adc/axp288_adc.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * axp288_adc.c - X-Powers AXP288 PMIC ADC Driver * * Copyright (C) 2014 Intel Corporation * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * */ #include <linux/module.h> diff --git a/drivers/iio/adc/bcm_iproc_adc.c b/drivers/iio/adc/bcm_iproc_adc.c index 7af59a4bbd8d..c46c0aa15376 100644 --- a/drivers/iio/adc/bcm_iproc_adc.c +++ b/drivers/iio/adc/bcm_iproc_adc.c @@ -1,17 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2016 Broadcom - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation (the "GPL"). - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 (GPLv2) for more details. - * - * You should have received a copy of the GNU General Public License - * version 2 (GPLv2) along with this source code. */ #include <linux/module.h> diff --git a/drivers/iio/adc/cc10001_adc.c b/drivers/iio/adc/cc10001_adc.c index 707d8b24b072..f93f1d93b80d 100644 --- a/drivers/iio/adc/cc10001_adc.c +++ b/drivers/iio/adc/cc10001_adc.c @@ -1,10 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2014-2015 Imagination Technologies Ltd. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * */ #include <linux/clk.h> diff --git a/drivers/iio/adc/cpcap-adc.c b/drivers/iio/adc/cpcap-adc.c index 9ad60421d360..2d616cafe75f 100644 --- a/drivers/iio/adc/cpcap-adc.c +++ b/drivers/iio/adc/cpcap-adc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2017 Tony Lindgren <tony@atomide.com> * @@ -5,15 +6,6 @@ * earlier driver found in the Motorola Linux kernel: * * Copyright (C) 2009-2010 Motorola, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/delay.h> diff --git a/drivers/iio/adc/da9150-gpadc.c b/drivers/iio/adc/da9150-gpadc.c index 0a5d9ce79164..354433996101 100644 --- a/drivers/iio/adc/da9150-gpadc.c +++ b/drivers/iio/adc/da9150-gpadc.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * DA9150 GPADC Driver * * Copyright (c) 2014 Dialog Semiconductor * * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #include <linux/kernel.h> diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c index c64c6675cae6..5fa78c273a25 100644 --- a/drivers/iio/adc/dln2-adc.c +++ b/drivers/iio/adc/dln2-adc.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Driver for the Diolan DLN-2 USB-ADC adapter * * Copyright (c) 2017 Jack Andersen - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation, version 2. */ #include <linux/kernel.h> diff --git a/drivers/iio/adc/ep93xx_adc.c b/drivers/iio/adc/ep93xx_adc.c index 5036c392cb20..5c97e8a511f2 100644 --- a/drivers/iio/adc/ep93xx_adc.c +++ b/drivers/iio/adc/ep93xx_adc.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Driver for ADC module on the Cirrus Logic EP93xx series of SoCs * * Copyright (C) 2015 Alexander Sverdlin * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * The driver uses polling to get the conversion status. According to EP93xx * datasheets, reading ADCResult register starts the conversion, but user is also * responsible for ensuring that delay between adjacent conversion triggers is diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index 1ca2c4d39f87..d4c3ece21679 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -1,23 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * exynos_adc.c - Support for ADC in EXYNOS SoCs * * 8 ~ 10 channel, 10/12-bit ADC * * Copyright (C) 2013 Naveen Krishna Chatradhi <ch.naveen@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/module.h> diff --git a/drivers/iio/adc/fsl-imx25-gcq.c b/drivers/iio/adc/fsl-imx25-gcq.c index 929c617db364..df19ecae52f7 100644 --- a/drivers/iio/adc/fsl-imx25-gcq.c +++ b/drivers/iio/adc/fsl-imx25-gcq.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2014-2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de> * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. - * * This is the driver for the imx25 GCQ (Generic Conversion Queue) * connected to the imx25 ADC. */ diff --git a/drivers/iio/adc/hi8435.c b/drivers/iio/adc/hi8435.c index 6f6c9a348158..35951c47004e 100644 --- a/drivers/iio/adc/hi8435.c +++ b/drivers/iio/adc/hi8435.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Holt Integrated Circuits HI-8435 threshold detector driver * * Copyright (C) 2015 Zodiac Inflight Innovations * Copyright (C) 2015 Cogent Embedded, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #include <linux/delay.h> diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c index 36b59d8957fb..88c7fe15003b 100644 --- a/drivers/iio/adc/hx711.c +++ b/drivers/iio/adc/hx711.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * HX711: analog to digital converter for weight sensor module * * Copyright (c) 2016 Andreas Klinger <ak@it-klinger.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/err.h> #include <linux/kernel.h> diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c index 958a34dd88ac..26a7bbe4d534 100644 --- a/drivers/iio/adc/imx7d_adc.c +++ b/drivers/iio/adc/imx7d_adc.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Freescale i.MX7D ADC driver * * Copyright (C) 2015 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #include <linux/clk.h> @@ -82,6 +78,7 @@ #define IMX7D_REG_ADC_INT_STATUS_CHANNEL_CONV_TIME_OUT 0xf0000 #define IMX7D_ADC_TIMEOUT msecs_to_jiffies(100) +#define IMX7D_ADC_INPUT_CLK 24000000 enum imx7d_adc_clk_pre_div { IMX7D_ADC_ANALOG_CLK_PRE_DIV_4, @@ -104,8 +101,6 @@ struct imx7d_adc_feature { enum imx7d_adc_average_num avg_num; u32 core_time_unit; /* impact the sample rate */ - - bool average_en; }; struct imx7d_adc { @@ -183,7 +178,6 @@ static void imx7d_adc_feature_config(struct imx7d_adc *info) info->adc_feature.clk_pre_div = IMX7D_ADC_ANALOG_CLK_PRE_DIV_4; info->adc_feature.avg_num = IMX7D_ADC_AVERAGE_NUM_32; info->adc_feature.core_time_unit = 1; - info->adc_feature.average_en = true; } static void imx7d_adc_sample_rate_set(struct imx7d_adc *info) @@ -244,9 +238,8 @@ static void imx7d_adc_channel_set(struct imx7d_adc *info) /* the channel choose single conversion, and enable average mode */ cfg1 |= (IMX7D_REG_ADC_CH_CFG1_CHANNEL_EN | - IMX7D_REG_ADC_CH_CFG1_CHANNEL_SINGLE); - if (info->adc_feature.average_en) - cfg1 |= IMX7D_REG_ADC_CH_CFG1_CHANNEL_AVG_EN; + IMX7D_REG_ADC_CH_CFG1_CHANNEL_SINGLE | + IMX7D_REG_ADC_CH_CFG1_CHANNEL_AVG_EN); /* * physical channel 0 chose logical channel A @@ -276,13 +269,11 @@ static void imx7d_adc_channel_set(struct imx7d_adc *info) static u32 imx7d_adc_get_sample_rate(struct imx7d_adc *info) { - /* input clock is always 24MHz */ - u32 input_clk = 24000000; u32 analogue_core_clk; u32 core_time_unit = info->adc_feature.core_time_unit; u32 tmp; - analogue_core_clk = input_clk / info->pre_div_num; + analogue_core_clk = IMX7D_ADC_INPUT_CLK / info->pre_div_num; tmp = (core_time_unit + 1) * 6; return analogue_core_clk / tmp; @@ -497,11 +488,8 @@ static int imx7d_adc_probe(struct platform_device *pdev) info->dev = dev; info->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(info->regs)) { - ret = PTR_ERR(info->regs); - dev_err(dev, "Failed to remap adc memory, err = %d\n", ret); - return ret; - } + if (IS_ERR(info->regs)) + return PTR_ERR(info->regs); irq = platform_get_irq(pdev, 0); if (irq < 0) { @@ -535,9 +523,7 @@ static int imx7d_adc_probe(struct platform_device *pdev) indio_dev->channels = imx7d_adc_iio_channels; indio_dev->num_channels = ARRAY_SIZE(imx7d_adc_iio_channels); - ret = devm_request_irq(dev, irq, - imx7d_adc_isr, 0, - dev_name(dev), info); + ret = devm_request_irq(dev, irq, imx7d_adc_isr, 0, dev_name(dev), info); if (ret < 0) { dev_err(dev, "Failed requesting irq, irq = %d\n", irq); return ret; diff --git a/drivers/iio/adc/lp8788_adc.c b/drivers/iio/adc/lp8788_adc.c index 3bc4df916420..c1fc1b678e0f 100644 --- a/drivers/iio/adc/lp8788_adc.c +++ b/drivers/iio/adc/lp8788_adc.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * TI LP8788 MFD - ADC driver * * Copyright 2012 Texas Instruments * * Author: Milo(Woogyom) Kim <milo.kim@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/delay.h> diff --git a/drivers/iio/adc/lpc18xx_adc.c b/drivers/iio/adc/lpc18xx_adc.c index 041dc4a3f66c..e400a95f553d 100644 --- a/drivers/iio/adc/lpc18xx_adc.c +++ b/drivers/iio/adc/lpc18xx_adc.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO ADC driver for NXP LPC18xx ADC * * Copyright (C) 2016 Joachim Eastwood <manabian@gmail.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * UNSUPPORTED hardware features: * - Hardware triggers * - Burst mode diff --git a/drivers/iio/adc/ltc2471.c b/drivers/iio/adc/ltc2471.c index b88102b751cf..55fab612843a 100644 --- a/drivers/iio/adc/ltc2471.c +++ b/drivers/iio/adc/ltc2471.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Driver for Linear Technology LTC2471 and LTC2473 voltage monitors * The LTC2473 is identical to the 2471, but reports a differential signal. * * Copyright (C) 2017 Topic Embedded Products * Author: Mike Looijmans <mike.looijmans@topic.nl> - * - * License: GPLv2 */ #include <linux/err.h> diff --git a/drivers/iio/adc/ltc2485.c b/drivers/iio/adc/ltc2485.c index b24c14037fd4..c418466d51fd 100644 --- a/drivers/iio/adc/ltc2485.c +++ b/drivers/iio/adc/ltc2485.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ltc2485.c - Driver for Linear Technology LTC2485 ADC * * Copyright (C) 2016 Alison Schofield <amsfield22@gmail.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Datasheet: http://cds.linear.com/docs/en/datasheet/2485fd.pdf */ diff --git a/drivers/iio/adc/ltc2497.c b/drivers/iio/adc/ltc2497.c index f1f7cdf66fbd..470406032720 100644 --- a/drivers/iio/adc/ltc2497.c +++ b/drivers/iio/adc/ltc2497.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ltc2497.c - Driver for Analog Devices/Linear Technology LTC2497 ADC * * Copyright (C) 2017 Analog Devices Inc. * - * Licensed under the GPL-2. - * * Datasheet: http://cds.linear.com/docs/en/datasheet/2497fd.pdf */ diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index 311c1a89c329..da84adfdb819 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * iio/adc/max1027.c * Copyright (C) 2014 Philippe Reynes @@ -6,10 +7,6 @@ * Copyright 2011 Analog Devices Inc (from AD7923 Driver) * Copyright 2012 CS Systemes d'Information * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * max1027.c * * Partial support for max1027 and similar chips. diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c index 49db9e9ae625..3b6f3b9a6c5b 100644 --- a/drivers/iio/adc/max1118.c +++ b/drivers/iio/adc/max1118.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * MAX1117/MAX1118/MAX1119 8-bit, dual-channel ADCs driver * * Copyright (c) 2017 Akinobu Mita <akinobu.mita@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX1117-MAX1119.pdf * * SPI interface connections diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index a8d35aebee80..5c2cc61b666e 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * iio/adc/max1363.c * Copyright (C) 2008-2010 Jonathan Cameron @@ -9,10 +10,6 @@ * Copyright (C) 2000 Russell King * * Driver for max1363 and similar chips. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/interrupt.h> diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c index a04856d8afdb..38bf10085696 100644 --- a/drivers/iio/adc/mcp320x.c +++ b/drivers/iio/adc/mcp320x.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013 Oskar Andero <oskar.andero@gmail.com> * Copyright (C) 2014 Rose Technology @@ -34,10 +35,6 @@ * http://ww1.microchip.com/downloads/en/DeviceDoc/21298c.pdf mcp3204/08 * http://ww1.microchip.com/downloads/en/DeviceDoc/21700E.pdf mcp3301 * http://ww1.microchip.com/downloads/en/DeviceDoc/21950D.pdf mcp3550/1/3 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/err.h> diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c index 819f26011500..ea24d7c58b12 100644 --- a/drivers/iio/adc/mcp3422.c +++ b/drivers/iio/adc/mcp3422.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * mcp3422.c - driver for the Microchip mcp3421/2/3/4/5/6/7/8 chip family * @@ -10,11 +11,6 @@ * * This driver exports the value of analog input voltage to sysfs, the * voltage unit is nV. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #include <linux/err.h> diff --git a/drivers/iio/adc/men_z188_adc.c b/drivers/iio/adc/men_z188_adc.c index c80261748d8f..3b2fbb7ce431 100644 --- a/drivers/iio/adc/men_z188_adc.c +++ b/drivers/iio/adc/men_z188_adc.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * MEN 16z188 Analog to Digial Converter * * Copyright (C) 2014 MEN Mikroelektronik GmbH (www.men.de) * Author: Johannes Thumshirn <johannes.thumshirn@men.de> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; version 2 of the License. */ #include <linux/kernel.h> diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 510d8b7ef3a0..7b28d045d271 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Amlogic Meson Successive Approximation Register (SAR) A/D Converter * * Copyright (C) 2017 Martin Blumenstingl <martin.blumenstingl@googlemail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/bitfield.h> diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c index 95d76abb64ec..7bbb64ca3b32 100644 --- a/drivers/iio/adc/mt6577_auxadc.c +++ b/drivers/iio/adc/mt6577_auxadc.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2016 MediaTek Inc. * Author: Zhiyong Tao <zhiyong.tao@mediatek.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk.h> @@ -42,10 +34,26 @@ #define MT6577_AUXADC_POWER_READY_MS 1 #define MT6577_AUXADC_SAMPLE_READY_US 25 +struct mtk_auxadc_compatible { + bool sample_data_cali; + bool check_global_idle; +}; + struct mt6577_auxadc_device { void __iomem *reg_base; struct clk *adc_clk; struct mutex lock; + const struct mtk_auxadc_compatible *dev_comp; +}; + +static const struct mtk_auxadc_compatible mt8173_compat = { + .sample_data_cali = false, + .check_global_idle = true, +}; + +static const struct mtk_auxadc_compatible mt6765_compat = { + .sample_data_cali = true, + .check_global_idle = false, }; #define MT6577_AUXADC_CHANNEL(idx) { \ @@ -74,6 +82,11 @@ static const struct iio_chan_spec mt6577_auxadc_iio_channels[] = { MT6577_AUXADC_CHANNEL(15), }; +static int mt_auxadc_get_cali_data(int rawdata, bool enable_cali) +{ + return rawdata; +} + static inline void mt6577_auxadc_mod_reg(void __iomem *reg, u32 or_mask, u32 and_mask) { @@ -120,15 +133,17 @@ static int mt6577_auxadc_read(struct iio_dev *indio_dev, /* we must delay here for hardware sample channel data */ udelay(MT6577_AUXADC_SAMPLE_READY_US); - /* check MTK_AUXADC_CON2 if auxadc is idle */ - ret = readl_poll_timeout(adc_dev->reg_base + MT6577_AUXADC_CON2, val, - ((val & MT6577_AUXADC_STA) == 0), - MT6577_AUXADC_SLEEP_US, - MT6577_AUXADC_TIMEOUT_US); - if (ret < 0) { - dev_err(indio_dev->dev.parent, - "wait for auxadc idle time out\n"); - goto err_timeout; + if (adc_dev->dev_comp->check_global_idle) { + /* check MTK_AUXADC_CON2 if auxadc is idle */ + ret = readl_poll_timeout(adc_dev->reg_base + MT6577_AUXADC_CON2, + val, ((val & MT6577_AUXADC_STA) == 0), + MT6577_AUXADC_SLEEP_US, + MT6577_AUXADC_TIMEOUT_US); + if (ret < 0) { + dev_err(indio_dev->dev.parent, + "wait for auxadc idle time out\n"); + goto err_timeout; + } } /* read channel and make sure ready bit == 1 */ @@ -163,6 +178,8 @@ static int mt6577_auxadc_read_raw(struct iio_dev *indio_dev, int *val2, long info) { + struct mt6577_auxadc_device *adc_dev = iio_priv(indio_dev); + switch (info) { case IIO_CHAN_INFO_PROCESSED: *val = mt6577_auxadc_read(indio_dev, chan); @@ -172,6 +189,8 @@ static int mt6577_auxadc_read_raw(struct iio_dev *indio_dev, chan->channel); return *val; } + if (adc_dev->dev_comp->sample_data_cali) + *val = mt_auxadc_get_cali_data(*val, true); return IIO_VAL_INT; default: @@ -304,10 +323,11 @@ static SIMPLE_DEV_PM_OPS(mt6577_auxadc_pm_ops, mt6577_auxadc_resume); static const struct of_device_id mt6577_auxadc_of_match[] = { - { .compatible = "mediatek,mt2701-auxadc", }, - { .compatible = "mediatek,mt2712-auxadc", }, - { .compatible = "mediatek,mt7622-auxadc", }, - { .compatible = "mediatek,mt8173-auxadc", }, + { .compatible = "mediatek,mt2701-auxadc", .data = &mt8173_compat}, + { .compatible = "mediatek,mt2712-auxadc", .data = &mt8173_compat}, + { .compatible = "mediatek,mt7622-auxadc", .data = &mt8173_compat}, + { .compatible = "mediatek,mt8173-auxadc", .data = &mt8173_compat}, + { .compatible = "mediatek,mt6765-auxadc", .data = &mt6765_compat}, { } }; MODULE_DEVICE_TABLE(of, mt6577_auxadc_of_match); diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c index 5384472b6c4d..9d2f74c2489a 100644 --- a/drivers/iio/adc/mxs-lradc-adc.c +++ b/drivers/iio/adc/mxs-lradc-adc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Freescale MXS LRADC ADC driver * @@ -7,16 +8,6 @@ * Authors: * Marek Vasut <marex@denx.de> * Ksenija Stanojevic <ksenija.stanojevic@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/completion.h> diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c index 8997e74a8847..572579139fba 100644 --- a/drivers/iio/adc/nau7802.c +++ b/drivers/iio/adc/nau7802.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for the Nuvoton NAU7802 ADC * * Copyright 2013 Free Electrons - * - * Licensed under the GPLv2 or later. */ #include <linux/delay.h> diff --git a/drivers/iio/adc/npcm_adc.c b/drivers/iio/adc/npcm_adc.c index 9e25bbec9c70..193b3b81de4d 100644 --- a/drivers/iio/adc/npcm_adc.c +++ b/drivers/iio/adc/npcm_adc.c @@ -149,7 +149,7 @@ static int npcm_adc_read_raw(struct iio_dev *indio_dev, } return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - if (info->vref) { + if (!IS_ERR(info->vref)) { vref_uv = regulator_get_voltage(info->vref); *val = vref_uv / 1000; } else { diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c index 69b9affeef1e..46e595eb889f 100644 --- a/drivers/iio/adc/palmas_gpadc.c +++ b/drivers/iio/adc/palmas_gpadc.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * palmas-adc.c -- TI PALMAS GPADC. * * Copyright (c) 2013, NVIDIA Corporation. All rights reserved. * * Author: Pradeep Goudagunta <pgoudagunta@nvidia.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. */ #include <linux/module.h> diff --git a/drivers/iio/adc/qcom-pm8xxx-xoadc.c b/drivers/iio/adc/qcom-pm8xxx-xoadc.c index 4735f8a1ca9d..c599ffa45a04 100644 --- a/drivers/iio/adc/qcom-pm8xxx-xoadc.c +++ b/drivers/iio/adc/qcom-pm8xxx-xoadc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Qualcomm PM8xxx PMIC XOADC driver * diff --git a/drivers/iio/adc/qcom-spmi-iadc.c b/drivers/iio/adc/qcom-spmi-iadc.c index 3f062cd61aba..46858eddf1c3 100644 --- a/drivers/iio/adc/qcom-spmi-iadc.c +++ b/drivers/iio/adc/qcom-spmi-iadc.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/bitops.h> diff --git a/drivers/iio/adc/qcom-spmi-vadc.c b/drivers/iio/adc/qcom-spmi-vadc.c index 3680e0d47412..203ad59da336 100644 --- a/drivers/iio/adc/qcom-spmi-vadc.c +++ b/drivers/iio/adc/qcom-spmi-vadc.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/bitops.h> diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c index 2c0d0316d149..2d685730f867 100644 --- a/drivers/iio/adc/rcar-gyroadc.c +++ b/drivers/iio/adc/rcar-gyroadc.c @@ -485,10 +485,8 @@ static int rcar_gyroadc_probe(struct platform_device *pdev) int ret; indio_dev = devm_iio_device_alloc(dev, sizeof(*priv)); - if (!indio_dev) { - dev_err(dev, "Failed to allocate IIO device.\n"); + if (!indio_dev) return -ENOMEM; - } priv = iio_priv(indio_dev); priv->dev = dev; diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c index 1f98566d5b3c..dd8299831e09 100644 --- a/drivers/iio/adc/rockchip_saradc.c +++ b/drivers/iio/adc/rockchip_saradc.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Rockchip Successive Approximation Register (SAR) A/D Converter * Copyright (C) 2014 ROCKCHIP, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/iio/adc/spear_adc.c b/drivers/iio/adc/spear_adc.c index b1da2c46107c..a33d0a4cc088 100644 --- a/drivers/iio/adc/spear_adc.c +++ b/drivers/iio/adc/spear_adc.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ST SPEAr ADC driver * * Copyright 2012 Stefan Roese <sr@denx.de> - * - * Licensed under the GPL-2. */ #include <linux/module.h> diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c index 2327ec18b40c..1f7ce5186dfc 100644 --- a/drivers/iio/adc/stm32-adc-core.c +++ b/drivers/iio/adc/stm32-adc-core.c @@ -87,6 +87,7 @@ struct stm32_adc_priv_cfg { * @domain: irq domain reference * @aclk: clock reference for the analog circuitry * @bclk: bus clock common for all ADCs, depends on part used + * @vdda: vdda analog supply reference * @vref: regulator reference * @cfg: compatible configuration data * @common: common data for all ADC instances @@ -97,6 +98,7 @@ struct stm32_adc_priv { struct irq_domain *domain; struct clk *aclk; struct clk *bclk; + struct regulator *vdda; struct regulator *vref; const struct stm32_adc_priv_cfg *cfg; struct stm32_adc_common common; @@ -394,10 +396,16 @@ static int stm32_adc_core_hw_start(struct device *dev) struct stm32_adc_priv *priv = to_stm32_adc_priv(common); int ret; + ret = regulator_enable(priv->vdda); + if (ret < 0) { + dev_err(dev, "vdda enable failed %d\n", ret); + return ret; + } + ret = regulator_enable(priv->vref); if (ret < 0) { dev_err(dev, "vref enable failed\n"); - return ret; + goto err_vdda_disable; } if (priv->bclk) { @@ -425,6 +433,8 @@ err_bclk_disable: clk_disable_unprepare(priv->bclk); err_regulator_disable: regulator_disable(priv->vref); +err_vdda_disable: + regulator_disable(priv->vdda); return ret; } @@ -441,6 +451,7 @@ static void stm32_adc_core_hw_stop(struct device *dev) if (priv->bclk) clk_disable_unprepare(priv->bclk); regulator_disable(priv->vref); + regulator_disable(priv->vdda); } static int stm32_adc_probe(struct platform_device *pdev) @@ -468,6 +479,14 @@ static int stm32_adc_probe(struct platform_device *pdev) return PTR_ERR(priv->common.base); priv->common.phys_base = res->start; + priv->vdda = devm_regulator_get(&pdev->dev, "vdda"); + if (IS_ERR(priv->vdda)) { + ret = PTR_ERR(priv->vdda); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "vdda get failed, %d\n", ret); + return ret; + } + priv->vref = devm_regulator_get(&pdev->dev, "vref"); if (IS_ERR(priv->vref)) { ret = PTR_ERR(priv->vref); diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c index 19adc2b23472..ee1e0569d0e1 100644 --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -39,9 +39,16 @@ #define DFSDM_MAX_INT_OVERSAMPLING 256 #define DFSDM_MAX_FL_OVERSAMPLING 1024 -/* Max sample resolutions */ -#define DFSDM_MAX_RES BIT(31) -#define DFSDM_DATA_RES BIT(23) +/* Limit filter output resolution to 31 bits. (i.e. sample range is +/-2^30) */ +#define DFSDM_DATA_MAX BIT(30) +/* + * Data are output as two's complement data in a 24 bit field. + * Data from filters are in the range +/-2^(n-1) + * 2^(n-1) maximum positive value cannot be coded in 2's complement n bits + * An extra bit is required to avoid wrap-around of the binary code for 2^(n-1) + * So, the resolution of samples from filter is actually limited to 23 bits + */ +#define DFSDM_DATA_RES 24 /* Filter configuration */ #define DFSDM_CR1_CFG_MASK (DFSDM_CR1_RCH_MASK | DFSDM_CR1_RCONT_MASK | \ @@ -181,14 +188,15 @@ static int stm32_dfsdm_get_jextsel(struct iio_dev *indio_dev, return -EINVAL; } -static int stm32_dfsdm_set_osrs(struct stm32_dfsdm_filter *fl, - unsigned int fast, unsigned int oversamp) +static int stm32_dfsdm_compute_osrs(struct stm32_dfsdm_filter *fl, + unsigned int fast, unsigned int oversamp) { unsigned int i, d, fosr, iosr; - u64 res; - s64 delta; + u64 res, max; + int bits, shift; unsigned int m = 1; /* multiplication factor */ unsigned int p = fl->ford; /* filter order (ford) */ + struct stm32_dfsdm_filter_osr *flo = &fl->flo[fast]; pr_debug("%s: Requested oversampling: %d\n", __func__, oversamp); /* @@ -207,11 +215,8 @@ static int stm32_dfsdm_set_osrs(struct stm32_dfsdm_filter *fl, /* * Look for filter and integrator oversampling ratios which allows - * to reach 24 bits data output resolution. - * Leave as soon as if exact resolution if reached. - * Otherwise the higher resolution below 32 bits is kept. + * to maximize data output resolution. */ - fl->res = 0; for (fosr = 1; fosr <= DFSDM_MAX_FL_OVERSAMPLING; fosr++) { for (iosr = 1; iosr <= DFSDM_MAX_INT_OVERSAMPLING; iosr++) { if (fast) @@ -236,33 +241,91 @@ static int stm32_dfsdm_set_osrs(struct stm32_dfsdm_filter *fl, res = fosr; for (i = p - 1; i > 0; i--) { res = res * (u64)fosr; - if (res > DFSDM_MAX_RES) + if (res > DFSDM_DATA_MAX) break; } - if (res > DFSDM_MAX_RES) + if (res > DFSDM_DATA_MAX) continue; + res = res * (u64)m * (u64)iosr; - if (res > DFSDM_MAX_RES) + if (res > DFSDM_DATA_MAX) continue; - delta = res - DFSDM_DATA_RES; - - if (res >= fl->res) { - fl->res = res; - fl->fosr = fosr; - fl->iosr = iosr; - fl->fast = fast; - pr_debug("%s: fosr = %d, iosr = %d\n", - __func__, fl->fosr, fl->iosr); + if (res >= flo->res) { + flo->res = res; + flo->fosr = fosr; + flo->iosr = iosr; + + bits = fls(flo->res); + /* 8 LBSs in data register contain chan info */ + max = flo->res << 8; + + /* if resolution is not a power of two */ + if (flo->res > BIT(bits - 1)) + bits++; + else + max--; + + shift = DFSDM_DATA_RES - bits; + /* + * Compute right/left shift + * Right shift is performed by hardware + * when transferring samples to data register. + * Left shift is done by software on buffer + */ + if (shift > 0) { + /* Resolution is lower than 24 bits */ + flo->rshift = 0; + flo->lshift = shift; + } else { + /* + * If resolution is 24 bits or more, + * max positive value may be ambiguous + * (equal to max negative value as sign + * bit is dropped). + * Reduce resolution to 23 bits (rshift) + * to keep the sign on bit 23 and treat + * saturation before rescaling on 24 + * bits (lshift). + */ + flo->rshift = 1 - shift; + flo->lshift = 1; + max >>= flo->rshift; + } + flo->max = (s32)max; + + pr_debug("%s: fast %d, fosr %d, iosr %d, res 0x%llx/%d bits, rshift %d, lshift %d\n", + __func__, fast, flo->fosr, flo->iosr, + flo->res, bits, flo->rshift, + flo->lshift); } - - if (!delta) - return 0; } } - if (!fl->res) + if (!flo->res) + return -EINVAL; + + return 0; +} + +static int stm32_dfsdm_compute_all_osrs(struct iio_dev *indio_dev, + unsigned int oversamp) +{ + struct stm32_dfsdm_adc *adc = iio_priv(indio_dev); + struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id]; + int ret0, ret1; + + memset(&fl->flo[0], 0, sizeof(fl->flo[0])); + memset(&fl->flo[1], 0, sizeof(fl->flo[1])); + + ret0 = stm32_dfsdm_compute_osrs(fl, 0, oversamp); + ret1 = stm32_dfsdm_compute_osrs(fl, 1, oversamp); + if (ret0 < 0 && ret1 < 0) { + dev_err(&indio_dev->dev, + "Filter parameters not found: errors %d/%d\n", + ret0, ret1); return -EINVAL; + } return 0; } @@ -384,6 +447,50 @@ static int stm32_dfsdm_filter_set_trig(struct stm32_dfsdm_adc *adc, return 0; } +static int stm32_dfsdm_channels_configure(struct stm32_dfsdm_adc *adc, + unsigned int fl_id, + struct iio_trigger *trig) +{ + struct iio_dev *indio_dev = iio_priv_to_dev(adc); + struct regmap *regmap = adc->dfsdm->regmap; + struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[fl_id]; + struct stm32_dfsdm_filter_osr *flo = &fl->flo[0]; + const struct iio_chan_spec *chan; + unsigned int bit; + int ret; + + fl->fast = 0; + + /* + * In continuous mode, use fast mode configuration, + * if it provides a better resolution. + */ + if (adc->nconv == 1 && !trig && + (indio_dev->currentmode & INDIO_BUFFER_SOFTWARE)) { + if (fl->flo[1].res >= fl->flo[0].res) { + fl->fast = 1; + flo = &fl->flo[1]; + } + } + + if (!flo->res) + return -EINVAL; + + for_each_set_bit(bit, &adc->smask, + sizeof(adc->smask) * BITS_PER_BYTE) { + chan = indio_dev->channels + bit; + + ret = regmap_update_bits(regmap, + DFSDM_CHCFGR2(chan->channel), + DFSDM_CHCFGR2_DTRBS_MASK, + DFSDM_CHCFGR2_DTRBS(flo->rshift)); + if (ret) + return ret; + } + + return 0; +} + static int stm32_dfsdm_filter_configure(struct stm32_dfsdm_adc *adc, unsigned int fl_id, struct iio_trigger *trig) @@ -391,6 +498,7 @@ static int stm32_dfsdm_filter_configure(struct stm32_dfsdm_adc *adc, struct iio_dev *indio_dev = iio_priv_to_dev(adc); struct regmap *regmap = adc->dfsdm->regmap; struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[fl_id]; + struct stm32_dfsdm_filter_osr *flo = &fl->flo[fl->fast]; u32 cr1; const struct iio_chan_spec *chan; unsigned int bit, jchg = 0; @@ -398,13 +506,13 @@ static int stm32_dfsdm_filter_configure(struct stm32_dfsdm_adc *adc, /* Average integrator oversampling */ ret = regmap_update_bits(regmap, DFSDM_FCR(fl_id), DFSDM_FCR_IOSR_MASK, - DFSDM_FCR_IOSR(fl->iosr - 1)); + DFSDM_FCR_IOSR(flo->iosr - 1)); if (ret) return ret; /* Filter order and Oversampling */ ret = regmap_update_bits(regmap, DFSDM_FCR(fl_id), DFSDM_FCR_FOSR_MASK, - DFSDM_FCR_FOSR(fl->fosr - 1)); + DFSDM_FCR_FOSR(flo->fosr - 1)); if (ret) return ret; @@ -417,6 +525,12 @@ static int stm32_dfsdm_filter_configure(struct stm32_dfsdm_adc *adc, if (ret) return ret; + ret = regmap_update_bits(regmap, DFSDM_CR1(fl_id), + DFSDM_CR1_FAST_MASK, + DFSDM_CR1_FAST(fl->fast)); + if (ret) + return ret; + /* * DFSDM modes configuration W.R.T audio/iio type modes * ---------------------------------------------------------------- @@ -563,7 +677,6 @@ static int dfsdm_adc_set_samp_freq(struct iio_dev *indio_dev, unsigned int spi_freq) { struct stm32_dfsdm_adc *adc = iio_priv(indio_dev); - struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id]; unsigned int oversamp; int ret; @@ -573,11 +686,10 @@ static int dfsdm_adc_set_samp_freq(struct iio_dev *indio_dev, "Rate not accurate. requested (%u), actual (%u)\n", sample_freq, spi_freq / oversamp); - ret = stm32_dfsdm_set_osrs(fl, 0, oversamp); - if (ret < 0) { - dev_err(&indio_dev->dev, "No filter parameters that match!\n"); + ret = stm32_dfsdm_compute_all_osrs(indio_dev, oversamp); + if (ret < 0) return ret; - } + adc->sample_freq = spi_freq / oversamp; adc->oversamp = oversamp; @@ -623,6 +735,10 @@ static int stm32_dfsdm_start_conv(struct stm32_dfsdm_adc *adc, struct regmap *regmap = adc->dfsdm->regmap; int ret; + ret = stm32_dfsdm_channels_configure(adc, adc->fl_id, trig); + if (ret < 0) + return ret; + ret = stm32_dfsdm_start_channel(adc); if (ret < 0) return ret; @@ -702,6 +818,30 @@ static unsigned int stm32_dfsdm_adc_dma_residue(struct stm32_dfsdm_adc *adc) return 0; } +static inline void stm32_dfsdm_process_data(struct stm32_dfsdm_adc *adc, + s32 *buffer) +{ + struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id]; + struct stm32_dfsdm_filter_osr *flo = &fl->flo[fl->fast]; + unsigned int i = adc->nconv; + s32 *ptr = buffer; + + while (i--) { + /* Mask 8 LSB that contains the channel ID */ + *ptr &= 0xFFFFFF00; + /* Convert 2^(n-1) sample to 2^(n-1)-1 to avoid wrap-around */ + if (*ptr > flo->max) + *ptr -= 1; + /* + * Samples from filter are retrieved with 23 bits resolution + * or less. Shift left to align MSB on 24 bits. + */ + *ptr <<= flo->lshift; + + ptr++; + } +} + static irqreturn_t stm32_dfsdm_adc_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; @@ -710,7 +850,9 @@ static irqreturn_t stm32_dfsdm_adc_trigger_handler(int irq, void *p) int available = stm32_dfsdm_adc_dma_residue(adc); while (available >= indio_dev->scan_bytes) { - u32 *buffer = (u32 *)&adc->rx_buf[adc->bufi]; + s32 *buffer = (s32 *)&adc->rx_buf[adc->bufi]; + + stm32_dfsdm_process_data(adc, buffer); iio_push_to_buffers_with_timestamp(indio_dev, buffer, pf->timestamp); @@ -751,10 +893,10 @@ static void stm32_dfsdm_dma_buffer_done(void *data) old_pos = adc->bufi; while (available >= indio_dev->scan_bytes) { - u32 *buffer = (u32 *)&adc->rx_buf[adc->bufi]; + s32 *buffer = (s32 *)&adc->rx_buf[adc->bufi]; + + stm32_dfsdm_process_data(adc, buffer); - /* Mask 8 LSB that contains the channel ID */ - *buffer = (*buffer & 0xFFFFFF00) << 8; available -= indio_dev->scan_bytes; adc->bufi += indio_dev->scan_bytes; if (adc->bufi >= adc->buf_sz) { @@ -776,6 +918,11 @@ static void stm32_dfsdm_dma_buffer_done(void *data) static int stm32_dfsdm_adc_dma_start(struct iio_dev *indio_dev) { struct stm32_dfsdm_adc *adc = iio_priv(indio_dev); + /* + * The DFSDM supports half-word transfers. However, for 16 bits record, + * 4 bytes buswidth is kept, to avoid losing samples LSBs when left + * shift is required. + */ struct dma_slave_config config = { .src_addr = (dma_addr_t)adc->dfsdm->phys_base, .src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, @@ -1068,7 +1215,6 @@ static int stm32_dfsdm_write_raw(struct iio_dev *indio_dev, int val, int val2, long mask) { struct stm32_dfsdm_adc *adc = iio_priv(indio_dev); - struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id]; struct stm32_dfsdm_channel *ch = &adc->dfsdm->ch_list[chan->channel]; unsigned int spi_freq; int ret = -EINVAL; @@ -1078,7 +1224,7 @@ static int stm32_dfsdm_write_raw(struct iio_dev *indio_dev, ret = iio_device_claim_direct_mode(indio_dev); if (ret) return ret; - ret = stm32_dfsdm_set_osrs(fl, 0, val); + ret = stm32_dfsdm_compute_all_osrs(indio_dev, val); if (!ret) adc->oversamp = val; iio_device_release_direct_mode(indio_dev); @@ -1277,11 +1423,11 @@ static int stm32_dfsdm_adc_chan_init_one(struct iio_dev *indio_dev, BIT(IIO_CHAN_INFO_SAMP_FREQ); if (adc->dev_data->type == DFSDM_AUDIO) { - ch->scan_type.sign = 's'; ch->ext_info = dfsdm_adc_audio_ext_info; } else { - ch->scan_type.sign = 'u'; + ch->scan_type.shift = 8; } + ch->scan_type.sign = 's'; ch->scan_type.realbits = 24; ch->scan_type.storagebits = 32; @@ -1327,8 +1473,7 @@ static int stm32_dfsdm_adc_init(struct iio_dev *indio_dev) int ret, chan_idx; adc->oversamp = DFSDM_DEFAULT_OVERSAMPLING; - ret = stm32_dfsdm_set_osrs(&adc->dfsdm->fl_list[adc->fl_id], 0, - adc->oversamp); + ret = stm32_dfsdm_compute_all_osrs(indio_dev, adc->oversamp); if (ret < 0) return ret; @@ -1456,6 +1601,12 @@ static int stm32_dfsdm_adc_probe(struct platform_device *pdev) * So IRQ associated to filter instance 0 is dedicated to the Filter 0. */ irq = platform_get_irq(pdev, 0); + if (irq < 0) { + if (irq != -EPROBE_DEFER) + dev_err(dev, "Failed to get IRQ: %d\n", irq); + return irq; + } + ret = devm_request_irq(dev, irq, stm32_dfsdm_irq, 0, pdev->name, adc); if (ret < 0) { diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c index 0a4d3746d21c..26e2011c5868 100644 --- a/drivers/iio/adc/stm32-dfsdm-core.c +++ b/drivers/iio/adc/stm32-dfsdm-core.c @@ -233,6 +233,8 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev, } priv->dfsdm.phys_base = res->start; priv->dfsdm.base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->dfsdm.base)) + return PTR_ERR(priv->dfsdm.base); /* * "dfsdm" clock is mandatory for DFSDM peripheral clocking. @@ -242,8 +244,10 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev, */ priv->clk = devm_clk_get(&pdev->dev, "dfsdm"); if (IS_ERR(priv->clk)) { - dev_err(&pdev->dev, "No stm32_dfsdm_clk clock found\n"); - return -EINVAL; + ret = PTR_ERR(priv->clk); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to get clock (%d)\n", ret); + return ret; } priv->aclk = devm_clk_get(&pdev->dev, "audio"); diff --git a/drivers/iio/adc/stm32-dfsdm.h b/drivers/iio/adc/stm32-dfsdm.h index 8708394b0725..5dbdae4ed881 100644 --- a/drivers/iio/adc/stm32-dfsdm.h +++ b/drivers/iio/adc/stm32-dfsdm.h @@ -243,19 +243,33 @@ enum stm32_dfsdm_sinc_order { }; /** - * struct stm32_dfsdm_filter - structure relative to stm32 FDSDM filter + * struct stm32_dfsdm_filter_osr - DFSDM filter settings linked to oversampling * @iosr: integrator oversampling * @fosr: filter oversampling - * @ford: filter order + * @rshift: output sample right shift (hardware shift) + * @lshift: output sample left shift (software shift) * @res: output sample resolution + * @max: output sample maximum positive value + */ +struct stm32_dfsdm_filter_osr { + unsigned int iosr; + unsigned int fosr; + unsigned int rshift; + unsigned int lshift; + u64 res; + s32 max; +}; + +/** + * struct stm32_dfsdm_filter - structure relative to stm32 FDSDM filter + * @ford: filter order + * @flo: filter oversampling data table indexed by fast mode flag * @sync_mode: filter synchronized with filter 0 * @fast: filter fast mode */ struct stm32_dfsdm_filter { - unsigned int iosr; - unsigned int fosr; enum stm32_dfsdm_sinc_order ford; - u64 res; + struct stm32_dfsdm_filter_osr flo[2]; unsigned int sync_mode; unsigned int fast; }; diff --git a/drivers/iio/adc/stmpe-adc.c b/drivers/iio/adc/stmpe-adc.c index 7921f827c6ec..bd72727fc417 100644 --- a/drivers/iio/adc/stmpe-adc.c +++ b/drivers/iio/adc/stmpe-adc.c @@ -65,6 +65,8 @@ static int stmpe_read_voltage(struct stmpe_adc *info, mutex_lock(&info->lock); + reinit_completion(&info->completion); + info->channel = (u8)chan->channel; if (info->channel > STMPE_ADC_LAST_NR) { @@ -72,23 +74,16 @@ static int stmpe_read_voltage(struct stmpe_adc *info, return -EINVAL; } - stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_EN, - STMPE_ADC_CH(info->channel)); - stmpe_reg_write(info->stmpe, STMPE_REG_ADC_CAPT, STMPE_ADC_CH(info->channel)); - *val = info->value; - - ret = wait_for_completion_interruptible_timeout - (&info->completion, STMPE_ADC_TIMEOUT); + ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); if (ret <= 0) { + stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA, + STMPE_ADC_CH(info->channel)); mutex_unlock(&info->lock); - if (ret == 0) - return -ETIMEDOUT; - else - return ret; + return -ETIMEDOUT; } *val = info->value; @@ -105,6 +100,8 @@ static int stmpe_read_temp(struct stmpe_adc *info, mutex_lock(&info->lock); + reinit_completion(&info->completion); + info->channel = (u8)chan->channel; if (info->channel != STMPE_TEMP_CHANNEL) { @@ -115,15 +112,11 @@ static int stmpe_read_temp(struct stmpe_adc *info, stmpe_reg_write(info->stmpe, STMPE_REG_TEMP_CTRL, STMPE_START_ONE_TEMP_CONV); - ret = wait_for_completion_interruptible_timeout - (&info->completion, STMPE_ADC_TIMEOUT); + ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); if (ret <= 0) { mutex_unlock(&info->lock); - if (ret == 0) - return -ETIMEDOUT; - else - return ret; + return -ETIMEDOUT; } /* @@ -331,6 +324,12 @@ static int stmpe_adc_probe(struct platform_device *pdev) if (ret) return ret; + stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_EN, + ~(norequest_mask & 0xFF)); + + stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA, + ~(norequest_mask & 0xFF)); + return devm_iio_device_register(&pdev->dev, indio_dev); } @@ -353,9 +352,14 @@ static struct platform_driver stmpe_adc_driver = { .pm = &stmpe_adc_pm_ops, }, }; - module_platform_driver(stmpe_adc_driver); +static const struct of_device_id stmpe_adc_ids[] = { + { .compatible = "st,stmpe-adc", }, + { }, +}; +MODULE_DEVICE_TABLE(of, stmpe_adc_ids); + MODULE_AUTHOR("Stefan Agner <stefan.agner@toradex.com>"); MODULE_DESCRIPTION("STMPEXXX ADC driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/adc/stx104.c b/drivers/iio/adc/stx104.c index 0662ca199eb0..f87bbc711ccc 100644 --- a/drivers/iio/adc/stx104.c +++ b/drivers/iio/adc/stx104.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO driver for the Apex Embedded Systems STX104 * Copyright (C) 2016 William Breathitt Gray - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #include <linux/bitops.h> #include <linux/device.h> diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c index 04d7147e0110..f13c6248a662 100644 --- a/drivers/iio/adc/sun4i-gpadc-iio.c +++ b/drivers/iio/adc/sun4i-gpadc-iio.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* ADC driver for sunxi platforms' (A10, A13 and A31) GPADC * * Copyright (c) 2016 Quentin Schulz <quentin.schulz@free-electrons.com> * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. - * * The Allwinner SoCs all have an ADC that can also act as a touchscreen * controller and a thermal sensor. * The thermal sensor works only when the ADC acts as a touchscreen controller diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c index 405e3779c0c5..0235863ff77b 100644 --- a/drivers/iio/adc/ti-adc081c.c +++ b/drivers/iio/adc/ti-adc081c.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * TI ADC081C/ADC101C/ADC121C 8/10/12-bit ADC driver * * Copyright (C) 2012 Avionic Design GmbH * Copyright (C) 2016 Intel * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Datasheets: * http://www.ti.com/lit/ds/symlink/adc081c021.pdf * http://www.ti.com/lit/ds/symlink/adc101c021.pdf diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c index 188dae705bf7..6ea39f4bbb37 100644 --- a/drivers/iio/adc/ti-adc0832.c +++ b/drivers/iio/adc/ti-adc0832.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADC0831/ADC0832/ADC0834/ADC0838 8-bit ADC driver * * Copyright (c) 2016 Akinobu Mita <akinobu.mita@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Datasheet: http://www.ti.com/lit/ds/symlink/adc0832-n.pdf */ diff --git a/drivers/iio/adc/ti-adc084s021.c b/drivers/iio/adc/ti-adc084s021.c index 25504640e126..bdedf456ee05 100644 --- a/drivers/iio/adc/ti-adc084s021.c +++ b/drivers/iio/adc/ti-adc084s021.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Copyright (C) 2017 Axis Communications AB * * Driver for Texas Instruments' ADC084S021 ADC chip. * Datasheets can be found here: * http://www.ti.com/lit/ds/symlink/adc084s021.pdf - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/err.h> diff --git a/drivers/iio/adc/ti-adc108s102.c b/drivers/iio/adc/ti-adc108s102.c index 841203edaac5..de9aaebff862 100644 --- a/drivers/iio/adc/ti-adc108s102.c +++ b/drivers/iio/adc/ti-adc108s102.c @@ -1,18 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * TI ADC108S102 SPI ADC driver * * Copyright (c) 2013-2015 Intel Corporation. * Copyright (c) 2017 Siemens AG * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * * This IIO device driver is designed to work with the following * analog to digital converters from Texas Instruments: * ADC108S102 diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c index 703d68ae96b7..68a9dcb8faa2 100644 --- a/drivers/iio/adc/ti-adc12138.c +++ b/drivers/iio/adc/ti-adc12138.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADC12130/ADC12132/ADC12138 12-bit plus sign ADC driver * * Copyright (c) 2016 Akinobu Mita <akinobu.mita@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Datasheet: http://www.ti.com/lit/ds/symlink/adc12138.pdf */ diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c index 6a114dcb4a3a..a550b132cfb7 100644 --- a/drivers/iio/adc/ti-ads1015.c +++ b/drivers/iio/adc/ti-ads1015.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADS1015 - Texas Instruments Analog-to-Digital Converter * * Copyright (c) 2016, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for ADS1015 ADC 7-bit I2C slave address: * * 0x48 - ADDR connected to Ground * * 0x49 - ADDR connected to Vdd diff --git a/drivers/iio/adc/ti-ads124s08.c b/drivers/iio/adc/ti-ads124s08.c index 53f17e4f2f23..552c2be8d87a 100644 --- a/drivers/iio/adc/ti-ads124s08.c +++ b/drivers/iio/adc/ti-ads124s08.c @@ -202,7 +202,7 @@ static int ads124s_read(struct iio_dev *indio_dev, unsigned int chan) }; priv->data[0] = ADS124S08_CMD_RDATA; - memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data)); + memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data) - 1); ret = spi_sync_transfer(priv->spi, t, ARRAY_SIZE(t)); if (ret < 0) diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c index f9461070a74a..14fe7c320b52 100644 --- a/drivers/iio/adc/ti-ads8688.c +++ b/drivers/iio/adc/ti-ads8688.c @@ -1,9 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2015 Prevas A/S - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/device.h> @@ -397,7 +394,7 @@ static irqreturn_t ads8688_trigger_handler(int irq, void *p) } iio_push_to_buffers_with_timestamp(indio_dev, buffer, - pf->timestamp); + iio_get_time_ns(indio_dev)); iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/adc/ti-tlc4541.c b/drivers/iio/adc/ti-tlc4541.c index 2290024c89fc..4965246808bd 100644 --- a/drivers/iio/adc/ti-tlc4541.c +++ b/drivers/iio/adc/ti-tlc4541.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * TI tlc4541 ADC Driver * @@ -7,10 +8,6 @@ * http://www.ti.com/lit/gpn/tlc3541 * http://www.ti.com/lit/gpn/tlc4541 * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * The tlc4541 requires 24 clock cycles to start a transfer. * Conversion then takes 2.94us to complete before data is ready * Data is returned MSB first. diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c index 8c019bb6625f..55c5119fe575 100644 --- a/drivers/iio/adc/twl4030-madc.c +++ b/drivers/iio/adc/twl4030-madc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * * TWL4030 MADC module driver-This driver monitors the real time @@ -12,21 +13,6 @@ * Mikko Ylinen <mikko.k.ylinen@nokia.com> * * Amit Kucheria <amit.kucheria@canonical.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * */ #include <linux/device.h> diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c index e470510e76ea..2fa6ec83bb13 100644 --- a/drivers/iio/adc/twl6030-gpadc.c +++ b/drivers/iio/adc/twl6030-gpadc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * TWL6030 GPADC module driver * @@ -12,21 +13,6 @@ * Based on twl4030-madc.c * Copyright (C) 2008 Nokia Corporation * Mikko Ylinen <mikko.k.ylinen@nokia.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * */ #include <linux/interrupt.h> #include <linux/kernel.h> diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c index bbcb7a4d7edf..41d3621c4787 100644 --- a/drivers/iio/adc/vf610_adc.c +++ b/drivers/iio/adc/vf610_adc.c @@ -1,21 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Freescale Vybrid vf610 ADC driver * * Copyright 2013 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/module.h> diff --git a/drivers/iio/adc/viperboard_adc.c b/drivers/iio/adc/viperboard_adc.c index 53eb5a4136fe..1d2aeb04069b 100644 --- a/drivers/iio/adc/viperboard_adc.c +++ b/drivers/iio/adc/viperboard_adc.c @@ -1,15 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Nano River Technologies viperboard IIO ADC driver * * (C) 2012 by Lemonage GmbH * Author: Lars Poeschel <poeschel@lemonage.de> * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #include <linux/kernel.h> diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c index 6401ca7a9a20..4fd389678dba 100644 --- a/drivers/iio/adc/xilinx-xadc-core.c +++ b/drivers/iio/adc/xilinx-xadc-core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Xilinx XADC driver * * Copyright 2013-2014 Analog Devices Inc. * Author: Lars-Peter Clauen <lars@metafoo.de> * - * Licensed under the GPL-2. - * * Documentation for the parts can be found at: * - XADC hardmacro: Xilinx UG480 * - ZYNQ XADC interface: Xilinx UG585 diff --git a/drivers/iio/adc/xilinx-xadc-events.c b/drivers/iio/adc/xilinx-xadc-events.c index dc0670308253..dbfd5da290a4 100644 --- a/drivers/iio/adc/xilinx-xadc-events.c +++ b/drivers/iio/adc/xilinx-xadc-events.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Xilinx XADC driver * * Copyright 2013 Analog Devices Inc. * Author: Lars-Peter Clauen <lars@metafoo.de> - * - * Licensed under the GPL-2. */ #include <linux/iio/events.h> diff --git a/drivers/iio/adc/xilinx-xadc.h b/drivers/iio/adc/xilinx-xadc.h index 8c0009585c16..4017f18b0a4f 100644 --- a/drivers/iio/adc/xilinx-xadc.h +++ b/drivers/iio/adc/xilinx-xadc.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Xilinx XADC driver * * Copyright 2013 Analog Devices Inc. * Author: Lars-Peter Clauen <lars@metafoo.de> - * - * Licensed under the GPL-2. */ #ifndef __IIO_XILINX_XADC__ diff --git a/drivers/iio/afe/Kconfig b/drivers/iio/afe/Kconfig index c91eef04825a..4fa397822cff 100644 --- a/drivers/iio/afe/Kconfig +++ b/drivers/iio/afe/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Analog Front End drivers # diff --git a/drivers/iio/afe/Makefile b/drivers/iio/afe/Makefile index 5fabb7bcac47..4c56c8edb2ba 100644 --- a/drivers/iio/afe/Makefile +++ b/drivers/iio/afe/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for industrial I/O Analog Front Ends (AFE) # diff --git a/drivers/iio/amplifiers/Kconfig b/drivers/iio/amplifiers/Kconfig index e9c5f2cd9257..da7f126d197b 100644 --- a/drivers/iio/amplifiers/Kconfig +++ b/drivers/iio/amplifiers/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Gain Amplifiers, etc. # @@ -6,12 +7,17 @@ menu "Amplifiers" config AD8366 - tristate "Analog Devices AD8366 VGA" + tristate "Analog Devices AD8366 and similar Gain Amplifiers" depends on SPI + depends on GPIOLIB select BITREVERSE help - Say yes here to build support for Analog Devices AD8366 - SPI Dual-Digital Variable Gain Amplifier (VGA). + Say yes here to build support for Analog Devices AD8366 and similar + gain amplifiers. This driver supports the following gain amplifiers + from Analog Devices: + AD8366 Dual-Digital Variable Gain Amplifier (VGA) + ADA4961 BiCMOS RF Digital Gain Amplifier (DGA) + ADL5240 Digitally controlled variable gain amplifier (VGA) To compile this driver as a module, choose M here: the module will be called ad8366. diff --git a/drivers/iio/amplifiers/Makefile b/drivers/iio/amplifiers/Makefile index 8da4b787898a..9abef2ebe9bc 100644 --- a/drivers/iio/amplifiers/Makefile +++ b/drivers/iio/amplifiers/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile iio/amplifiers # diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c index 4b76b61ba4be..0176d3d8cc9c 100644 --- a/drivers/iio/amplifiers/ad8366.c +++ b/drivers/iio/amplifiers/ad8366.c @@ -1,9 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * AD8366 SPI Dual-Digital Variable Gain Amplifier (VGA) + * AD8366 and similar Gain Amplifiers + * This driver supports the following gain amplifiers: + * AD8366 Dual-Digital Variable Gain Amplifier (VGA) + * ADA4961 BiCMOS RF Digital Gain Amplifier (DGA) + * ADL5240 Digitally controlled variable gain amplifier (VGA) * - * Copyright 2012 Analog Devices Inc. - * - * Licensed under the GPL-2. + * Copyright 2012-2019 Analog Devices Inc. */ #include <linux/device.h> @@ -12,6 +15,7 @@ #include <linux/sysfs.h> #include <linux/spi/spi.h> #include <linux/regulator/consumer.h> +#include <linux/gpio/consumer.h> #include <linux/err.h> #include <linux/module.h> #include <linux/bitrev.h> @@ -19,10 +23,25 @@ #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> +enum ad8366_type { + ID_AD8366, + ID_ADA4961, + ID_ADL5240, +}; + +struct ad8366_info { + int gain_min; + int gain_max; +}; + struct ad8366_state { struct spi_device *spi; struct regulator *reg; + struct mutex lock; /* protect sensor state */ + struct gpio_desc *reset_gpio; unsigned char ch[2]; + enum ad8366_type type; + struct ad8366_info *info; /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. @@ -30,19 +49,44 @@ struct ad8366_state { unsigned char data[2] ____cacheline_aligned; }; +static struct ad8366_info ad8366_infos[] = { + [ID_AD8366] = { + .gain_min = 4500, + .gain_max = 20500, + }, + [ID_ADA4961] = { + .gain_min = -6000, + .gain_max = 15000, + }, + [ID_ADL5240] = { + .gain_min = -11500, + .gain_max = 20000, + }, +}; + static int ad8366_write(struct iio_dev *indio_dev, unsigned char ch_a, unsigned char ch_b) { struct ad8366_state *st = iio_priv(indio_dev); int ret; - ch_a = bitrev8(ch_a & 0x3F); - ch_b = bitrev8(ch_b & 0x3F); + switch (st->type) { + case ID_AD8366: + ch_a = bitrev8(ch_a & 0x3F); + ch_b = bitrev8(ch_b & 0x3F); - st->data[0] = ch_b >> 4; - st->data[1] = (ch_b << 4) | (ch_a >> 2); + st->data[0] = ch_b >> 4; + st->data[1] = (ch_b << 4) | (ch_a >> 2); + break; + case ID_ADA4961: + st->data[0] = ch_a & 0x1F; + break; + case ID_ADL5240: + st->data[0] = (ch_a & 0x3F); + break; + } - ret = spi_write(st->spi, st->data, ARRAY_SIZE(st->data)); + ret = spi_write(st->spi, st->data, indio_dev->num_channels); if (ret < 0) dev_err(&indio_dev->dev, "write failed (%d)", ret); @@ -57,24 +101,35 @@ static int ad8366_read_raw(struct iio_dev *indio_dev, { struct ad8366_state *st = iio_priv(indio_dev); int ret; - unsigned code; + int code, gain = 0; - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); switch (m) { case IIO_CHAN_INFO_HARDWAREGAIN: code = st->ch[chan->channel]; + switch (st->type) { + case ID_AD8366: + gain = code * 253 + 4500; + break; + case ID_ADA4961: + gain = 15000 - code * 1000; + break; + case ID_ADL5240: + gain = 20000 - 31500 + code * 500; + break; + } + /* Values in dB */ - code = code * 253 + 4500; - *val = code / 1000; - *val2 = (code % 1000) * 1000; + *val = gain / 1000; + *val2 = (gain % 1000) * 1000; ret = IIO_VAL_INT_PLUS_MICRO_DB; break; default: ret = -EINVAL; } - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); return ret; }; @@ -86,21 +141,32 @@ static int ad8366_write_raw(struct iio_dev *indio_dev, long mask) { struct ad8366_state *st = iio_priv(indio_dev); - unsigned code; + struct ad8366_info *inf = st->info; + int code = 0, gain; int ret; - if (val < 0 || val2 < 0) - return -EINVAL; - /* Values in dB */ - code = (((u8)val * 1000) + ((u32)val2 / 1000)); + if (val < 0) + gain = (val * 1000) - (val2 / 1000); + else + gain = (val * 1000) + (val2 / 1000); - if (code > 20500 || code < 4500) + if (gain > inf->gain_max || gain < inf->gain_min) return -EINVAL; - code = (code - 4500) / 253; + switch (st->type) { + case ID_AD8366: + code = (gain - 4500) / 253; + break; + case ID_ADA4961: + code = (15000 - gain) / 1000; + break; + case ID_ADL5240: + code = ((gain - 500 - 20000) / 500) & 0x3F; + break; + } - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); switch (mask) { case IIO_CHAN_INFO_HARDWAREGAIN: st->ch[chan->channel] = code; @@ -109,7 +175,7 @@ static int ad8366_write_raw(struct iio_dev *indio_dev, default: ret = -EINVAL; } - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); return ret; } @@ -132,6 +198,10 @@ static const struct iio_chan_spec ad8366_channels[] = { AD8366_CHAN(1), }; +static const struct iio_chan_spec ada4961_channels[] = { + AD8366_CHAN(0), +}; + static int ad8366_probe(struct spi_device *spi) { struct iio_dev *indio_dev; @@ -152,14 +222,33 @@ static int ad8366_probe(struct spi_device *spi) } spi_set_drvdata(spi, indio_dev); + mutex_init(&st->lock); st->spi = spi; + st->type = spi_get_device_id(spi)->driver_data; + + switch (st->type) { + case ID_AD8366: + indio_dev->channels = ad8366_channels; + indio_dev->num_channels = ARRAY_SIZE(ad8366_channels); + break; + case ID_ADA4961: + case ID_ADL5240: + st->reset_gpio = devm_gpiod_get(&spi->dev, "reset", + GPIOD_OUT_HIGH); + indio_dev->channels = ada4961_channels; + indio_dev->num_channels = ARRAY_SIZE(ada4961_channels); + break; + default: + dev_err(&spi->dev, "Invalid device ID\n"); + ret = -EINVAL; + goto error_disable_reg; + } + st->info = &ad8366_infos[st->type]; indio_dev->dev.parent = &spi->dev; indio_dev->name = spi_get_device_id(spi)->name; indio_dev->info = &ad8366_info; indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->channels = ad8366_channels; - indio_dev->num_channels = ARRAY_SIZE(ad8366_channels); ret = ad8366_write(indio_dev, 0 , 0); if (ret < 0) @@ -193,7 +282,9 @@ static int ad8366_remove(struct spi_device *spi) } static const struct spi_device_id ad8366_id[] = { - {"ad8366", 0}, + {"ad8366", ID_AD8366}, + {"ada4961", ID_ADA4961}, + {"adl5240", ID_ADL5240}, {} }; MODULE_DEVICE_TABLE(spi, ad8366_id); @@ -210,5 +301,5 @@ static struct spi_driver ad8366_driver = { module_spi_driver(ad8366_driver); MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>"); -MODULE_DESCRIPTION("Analog Devices AD8366 VGA"); +MODULE_DESCRIPTION("Analog Devices AD8366 and similar Gain Amplifiers"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/buffer/Kconfig b/drivers/iio/buffer/Kconfig index 338774cba19b..63f265c8b466 100644 --- a/drivers/iio/buffer/Kconfig +++ b/drivers/iio/buffer/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Industrial I/O generic buffer implementations # diff --git a/drivers/iio/buffer/industrialio-buffer-cb.c b/drivers/iio/buffer/industrialio-buffer-cb.c index df21e7dbec40..47c96f7f4976 100644 --- a/drivers/iio/buffer/industrialio-buffer-cb.c +++ b/drivers/iio/buffer/industrialio-buffer-cb.c @@ -1,8 +1,5 @@ +// SPDX-License-Identifier: GPL-2.0-only /* The industrial I/O callback buffer - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c index b32bf57910ca..90cf6e586b10 100644 --- a/drivers/iio/buffer/industrialio-buffer-dma.c +++ b/drivers/iio/buffer/industrialio-buffer-dma.c @@ -1,8 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2013-2015 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2. */ #include <linux/slab.h> diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c index 2b5a320f42c5..bea4a75e92f1 100644 --- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c +++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c @@ -1,8 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright 2014-2015 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2 or later. */ #include <linux/slab.h> diff --git a/drivers/iio/buffer/industrialio-triggered-buffer.c b/drivers/iio/buffer/industrialio-triggered-buffer.c index d3db1fce54d2..cb322b2f09cd 100644 --- a/drivers/iio/buffer/industrialio-triggered-buffer.c +++ b/drivers/iio/buffer/industrialio-triggered-buffer.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2012 Analog Devices, Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/iio/buffer/kfifo_buf.c b/drivers/iio/buffer/kfifo_buf.c index 70c302a93d7f..e78fc0834e6b 100644 --- a/drivers/iio/buffer/kfifo_buf.c +++ b/drivers/iio/buffer/kfifo_buf.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/slab.h> #include <linux/kernel.h> #include <linux/module.h> diff --git a/drivers/iio/chemical/Kconfig b/drivers/iio/chemical/Kconfig index 5dc11a359444..fa4586037bb8 100644 --- a/drivers/iio/chemical/Kconfig +++ b/drivers/iio/chemical/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Chemical sensors # diff --git a/drivers/iio/chemical/Makefile b/drivers/iio/chemical/Makefile index f5d1365acb49..f97270bc4034 100644 --- a/drivers/iio/chemical/Makefile +++ b/drivers/iio/chemical/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for IIO chemical sensors # diff --git a/drivers/iio/chemical/ccs811.c b/drivers/iio/chemical/ccs811.c index b4a46eb45789..2ebdfc35bcda 100644 --- a/drivers/iio/chemical/ccs811.c +++ b/drivers/iio/chemical/ccs811.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ccs811.c - Support for AMS CCS811 VOC Sensor * @@ -5,10 +6,6 @@ * * Datasheet: ams.com/content/download/951091/2269479/CCS811_DS000459_3-00.pdf * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * IIO driver for AMS CCS811 (I2C address 0x5A/0x5B set by ADDR Low/High) * * TODO: diff --git a/drivers/iio/common/Kconfig b/drivers/iio/common/Kconfig index e108996a9627..2b9ee9161abd 100644 --- a/drivers/iio/common/Kconfig +++ b/drivers/iio/common/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # IIO common modules # diff --git a/drivers/iio/common/cros_ec_sensors/Kconfig b/drivers/iio/common/cros_ec_sensors/Kconfig index aacc2ab9c34f..bcb58fb76b9f 100644 --- a/drivers/iio/common/cros_ec_sensors/Kconfig +++ b/drivers/iio/common/cros_ec_sensors/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Chrome OS Embedded Controller managed sensors library # diff --git a/drivers/iio/common/cros_ec_sensors/Makefile b/drivers/iio/common/cros_ec_sensors/Makefile index a35ee232ac07..e0a33ab66d21 100644 --- a/drivers/iio/common/cros_ec_sensors/Makefile +++ b/drivers/iio/common/cros_ec_sensors/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for sensors seen through the ChromeOS EC sensor hub. # diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c index 719a0df5aeeb..130362ca421b 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c @@ -125,6 +125,15 @@ static ssize_t cros_ec_sensors_calibrate(struct iio_dev *indio_dev, return ret ? ret : len; } +static ssize_t cros_ec_sensors_id(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, char *buf) +{ + struct cros_ec_sensors_core_state *st = iio_priv(indio_dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", st->param.info.sensor_num); +} + static ssize_t cros_ec_sensors_loc(struct iio_dev *indio_dev, uintptr_t private, const struct iio_chan_spec *chan, char *buf) @@ -141,6 +150,11 @@ const struct iio_chan_spec_ext_info cros_ec_sensors_ext_info[] = { .write = cros_ec_sensors_calibrate }, { + .name = "id", + .shared = IIO_SHARED_BY_ALL, + .read = cros_ec_sensors_id + }, + { .name = "location", .shared = IIO_SHARED_BY_ALL, .read = cros_ec_sensors_loc diff --git a/drivers/iio/common/hid-sensors/Kconfig b/drivers/iio/common/hid-sensors/Kconfig index 80105378b0ba..24d492567336 100644 --- a/drivers/iio/common/hid-sensors/Kconfig +++ b/drivers/iio/common/hid-sensors/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Hid Sensor common modules # diff --git a/drivers/iio/common/hid-sensors/Makefile b/drivers/iio/common/hid-sensors/Makefile index 22e7c5a82325..64b01a81fcb2 100644 --- a/drivers/iio/common/hid-sensors/Makefile +++ b/drivers/iio/common/hid-sensors/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for the Hid sensor common modules. # diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c index b2143d7b4ccb..a8a3fe428d8d 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c @@ -1,20 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c index 1e10c0af2f2c..906d87780419 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c @@ -1,20 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.h b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h index 9f4713f42ecb..f47b940ff170 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.h +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #ifndef _HID_SENSOR_TRIGGER_H #define _HID_SENSOR_TRIGGER_H diff --git a/drivers/iio/common/ms_sensors/Kconfig b/drivers/iio/common/ms_sensors/Kconfig index 89398d0afc0d..45012b7ad609 100644 --- a/drivers/iio/common/ms_sensors/Kconfig +++ b/drivers/iio/common/ms_sensors/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Measurements Specialties sensors common library # diff --git a/drivers/iio/common/ms_sensors/Makefile b/drivers/iio/common/ms_sensors/Makefile index 7846428abe06..028573b9b7e3 100644 --- a/drivers/iio/common/ms_sensors/Makefile +++ b/drivers/iio/common/ms_sensors/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for the Measurement Specialties sensor common modules. # diff --git a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c index 125b5ff61d19..b52cba1b3c83 100644 --- a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c +++ b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Measurements Specialties driver common i2c functions * * Copyright (c) 2015 Measurement-Specialties - * - * Licensed under the GPL-2. */ #include <linux/module.h> diff --git a/drivers/iio/common/ms_sensors/ms_sensors_i2c.h b/drivers/iio/common/ms_sensors/ms_sensors_i2c.h index 7b614adc5cae..bad09c80e47a 100644 --- a/drivers/iio/common/ms_sensors/ms_sensors_i2c.h +++ b/drivers/iio/common/ms_sensors/ms_sensors_i2c.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Measurements Specialties common sensor driver * * Copyright (c) 2015 Measurement-Specialties - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _MS_SENSORS_I2C_H diff --git a/drivers/iio/common/ssp_sensors/Kconfig b/drivers/iio/common/ssp_sensors/Kconfig index 0ea4faf016d8..5262409e4421 100644 --- a/drivers/iio/common/ssp_sensors/Kconfig +++ b/drivers/iio/common/ssp_sensors/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # SSP sensor drivers and commons configuration # diff --git a/drivers/iio/common/ssp_sensors/Makefile b/drivers/iio/common/ssp_sensors/Makefile index 1e0389eb0905..ba831429b20a 100644 --- a/drivers/iio/common/ssp_sensors/Makefile +++ b/drivers/iio/common/ssp_sensors/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for SSP sensor drivers and commons. # diff --git a/drivers/iio/common/ssp_sensors/ssp.h b/drivers/iio/common/ssp_sensors/ssp.h index 82a01addd919..0a381bb1ae6f 100644 --- a/drivers/iio/common/ssp_sensors/ssp.h +++ b/drivers/iio/common/ssp_sensors/ssp.h @@ -1,16 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef __SSP_SENSORHUB_H__ diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c index 9e13be2c0cb9..9c70553994c6 100644 --- a/drivers/iio/common/ssp_sensors/ssp_dev.c +++ b/drivers/iio/common/ssp_sensors/ssp_dev.c @@ -1,16 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/iio/iio.h> diff --git a/drivers/iio/common/ssp_sensors/ssp_iio.c b/drivers/iio/common/ssp_sensors/ssp_iio.c index e38f704d88b7..5336db81ba0a 100644 --- a/drivers/iio/common/ssp_sensors/ssp_iio.c +++ b/drivers/iio/common/ssp_sensors/ssp_iio.c @@ -1,16 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/iio/common/ssp_sensors.h> diff --git a/drivers/iio/common/ssp_sensors/ssp_spi.c b/drivers/iio/common/ssp_sensors/ssp_spi.c index 2ab106bb3e03..7db3d5886e3e 100644 --- a/drivers/iio/common/ssp_sensors/ssp_spi.c +++ b/drivers/iio/common/ssp_sensors/ssp_spi.c @@ -1,16 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include "ssp.h" diff --git a/drivers/iio/common/st_sensors/Kconfig b/drivers/iio/common/st_sensors/Kconfig index 865f1ca33eb9..91b98e152d75 100644 --- a/drivers/iio/common/st_sensors/Kconfig +++ b/drivers/iio/common/st_sensors/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # STMicroelectronics sensors common library # diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c index df4045203a07..4a68669dc555 100644 --- a/drivers/iio/common/st_sensors/st_sensors_buffer.c +++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics sensors buffer library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index e50c975250e9..8b22dc241482 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics sensors core library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/common/st_sensors/st_sensors_i2c.c b/drivers/iio/common/st_sensors/st_sensors_i2c.c index b81e48e9f27e..b1c9812407e7 100644 --- a/drivers/iio/common/st_sensors/st_sensors_i2c.c +++ b/drivers/iio/common/st_sensors/st_sensors_i2c.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics sensors i2c library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/common/st_sensors/st_sensors_spi.c b/drivers/iio/common/st_sensors/st_sensors_spi.c index 5b377373f48d..2213843f02cb 100644 --- a/drivers/iio/common/st_sensors/st_sensors_spi.c +++ b/drivers/iio/common/st_sensors/st_sensors_spi.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics sensors spi library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c index 224596b0e189..630c8cb35e8b 100644 --- a/drivers/iio/common/st_sensors/st_sensors_trigger.c +++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics sensors trigger library driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index fbef9107acad..cc42219a64f7 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # DAC drivers # diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c index 6c3ba143839b..d33642de9720 100644 --- a/drivers/iio/dac/ad5064.c +++ b/drivers/iio/dac/ad5064.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5625, AD5625R, * AD5627, AD5627R, AD5628, AD5629R, AD5645R, AD5647R, AD5648, AD5665, AD5665R, @@ -6,8 +7,6 @@ * Digital to analog converters driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/ad5360.c b/drivers/iio/dac/ad5360.c index 0209316d5566..2ac428b957e3 100644 --- a/drivers/iio/dac/ad5360.c +++ b/drivers/iio/dac/ad5360.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Analog devices AD5360, AD5361, AD5362, AD5363, AD5370, AD5371, AD5373 * multi-channel Digital to Analog Converters driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c index 873c2bf637c0..4335214800d2 100644 --- a/drivers/iio/dac/ad5380.c +++ b/drivers/iio/dac/ad5380.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Analog devices AD5380, AD5381, AD5382, AD5383, AD5390, AD5391, AD5392 * multi-channel Digital to Analog Converters driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c index 8e9633d8de67..63063e85cd0a 100644 --- a/drivers/iio/dac/ad5421.c +++ b/drivers/iio/dac/ad5421.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5421 Digital to analog converters driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index c3426708b6b5..7df8b4cc295d 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * AD5446 SPI DAC driver * * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/interrupt.h> diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c index 317a74129932..fed3ebaccac4 100644 --- a/drivers/iio/dac/ad5449.c +++ b/drivers/iio/dac/ad5449.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog * Converter driver. * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c index 0ae23a268017..c64e6898ff20 100644 --- a/drivers/iio/dac/ad5504.c +++ b/drivers/iio/dac/ad5504.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5504, AD5501 High Voltage Digital to Analog Converter * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c index 095530c233e4..2d897e64c6a9 100644 --- a/drivers/iio/dac/ad5592r-base.c +++ b/drivers/iio/dac/ad5592r-base.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5592R Digital <-> Analog converters driver * * Copyright 2014-2016 Analog Devices Inc. * Author: Paul Cercueil <paul.cercueil@analog.com> - * - * Licensed under the GPL-2. */ #include <linux/bitops.h> diff --git a/drivers/iio/dac/ad5592r-base.h b/drivers/iio/dac/ad5592r-base.h index 841457e93f85..4774e4cd9c11 100644 --- a/drivers/iio/dac/ad5592r-base.h +++ b/drivers/iio/dac/ad5592r-base.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD5592R / AD5593R Digital <-> Analog converters driver * * Copyright 2015-2016 Analog Devices Inc. * Author: Paul Cercueil <paul.cercueil@analog.com> - * - * Licensed under the GPL-2. */ #ifndef __DRIVERS_IIO_DAC_AD5592R_BASE_H__ diff --git a/drivers/iio/dac/ad5592r.c b/drivers/iio/dac/ad5592r.c index 6a12a3c9d94f..34ba059a77da 100644 --- a/drivers/iio/dac/ad5592r.c +++ b/drivers/iio/dac/ad5592r.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5592R Digital <-> Analog converters driver * * Copyright 2015-2016 Analog Devices Inc. * Author: Paul Cercueil <paul.cercueil@analog.com> - * - * Licensed under the GPL-2. */ #include "ad5592r-base.h" diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c index fc11ea098f98..44ea3b8117d0 100644 --- a/drivers/iio/dac/ad5593r.c +++ b/drivers/iio/dac/ad5593r.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5593R Digital <-> Analog converters driver * * Copyright 2015-2016 Analog Devices Inc. * Author: Paul Cercueil <paul.cercueil@analog.com> - * - * Licensed under the GPL-2. */ #include "ad5592r-base.h" diff --git a/drivers/iio/dac/ad5624r.h b/drivers/iio/dac/ad5624r.h index 5dca3028cdfd..13964f3a22a4 100644 --- a/drivers/iio/dac/ad5624r.h +++ b/drivers/iio/dac/ad5624r.h @@ -1,9 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AD5624R SPI DAC driver * * Copyright 2010-2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #ifndef SPI_AD5624R_H_ #define SPI_AD5624R_H_ diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c index 13fdb4dfe356..e6c022e1dc1c 100644 --- a/drivers/iio/dac/ad5624r_spi.c +++ b/drivers/iio/dac/ad5624r_spi.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5624R, AD5644R, AD5664R Digital to analog convertors spi driver * * Copyright 2010-2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c index 2d03cc89ba50..b9175fb4c8ab 100644 --- a/drivers/iio/dac/ad5755.c +++ b/drivers/iio/dac/ad5755.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5755, AD5755-1, AD5757, AD5735, AD5737 Digital to analog converters driver * * Copyright 2012 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/ad5758.c b/drivers/iio/dac/ad5758.c index a513c70faefa..475646c82b40 100644 --- a/drivers/iio/dac/ad5758.c +++ b/drivers/iio/dac/ad5758.c @@ -11,6 +11,8 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/property.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <linux/spi/spi.h> #include <linux/gpio/consumer.h> @@ -582,7 +584,7 @@ static ssize_t ad5758_write_powerdown(struct iio_dev *indio_dev, { struct ad5758_state *st = iio_priv(indio_dev); bool pwr_down; - unsigned int dc_dc_mode, dac_config_mode, val; + unsigned int dac_config_mode, val; unsigned long int dac_config_msk; int ret; @@ -591,13 +593,10 @@ static ssize_t ad5758_write_powerdown(struct iio_dev *indio_dev, return ret; mutex_lock(&st->lock); - if (pwr_down) { - dc_dc_mode = AD5758_DCDC_MODE_POWER_OFF; + if (pwr_down) val = 0; - } else { - dc_dc_mode = st->dc_dc_mode; + else val = 1; - } dac_config_mode = AD5758_DAC_CONFIG_OUT_EN_MODE(val) | AD5758_DAC_CONFIG_INT_EN_MODE(val); @@ -885,9 +884,16 @@ static const struct spi_device_id ad5758_id[] = { }; MODULE_DEVICE_TABLE(spi, ad5758_id); +static const struct of_device_id ad5758_of_match[] = { + { .compatible = "adi,ad5758" }, + { }, +}; +MODULE_DEVICE_TABLE(of, ad5758_of_match); + static struct spi_driver ad5758_driver = { .driver = { .name = KBUILD_MODNAME, + .of_match_table = ad5758_of_match, }, .probe = ad5758_probe, .id_table = ad5758_id, diff --git a/drivers/iio/dac/ad5761.c b/drivers/iio/dac/ad5761.c index 05017c8bbd00..4fb42b743f0f 100644 --- a/drivers/iio/dac/ad5761.c +++ b/drivers/iio/dac/ad5761.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5721, AD5721R, AD5761, AD5761R, Voltage Output Digital to Analog Converter * * Copyright 2016 Qtechnology A/S * 2016 Ricardo Ribalda <ricardo.ribalda@gmail.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> #include <linux/module.h> diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c index 9333177062c0..f7ab211604a1 100644 --- a/drivers/iio/dac/ad5764.c +++ b/drivers/iio/dac/ad5764.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Analog devices AD5764, AD5764R, AD5744, AD5744R quad-channel * Digital to Analog Converters driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c index 84ce5e6ecf3f..1d11f39ed047 100644 --- a/drivers/iio/dac/ad5791.c +++ b/drivers/iio/dac/ad5791.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD5760, AD5780, AD5781, AD5790, AD5791 Voltage Output Digital to Analog * Converter * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c index 8f3bd19b6dc3..8de9f40226e6 100644 --- a/drivers/iio/dac/ad7303.c +++ b/drivers/iio/dac/ad7303.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD7303 Digital to analog converters driver * * Copyright 2013 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/err.h> diff --git a/drivers/iio/dac/ad8801.c b/drivers/iio/dac/ad8801.c index aef5808c9865..0789c9100a8f 100644 --- a/drivers/iio/dac/ad8801.c +++ b/drivers/iio/dac/ad8801.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO DAC driver for Analog Devices AD8801 DAC * * Copyright (C) 2016 Gwenhael Goavec-Merou - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * */ #include <linux/iio/iio.h> diff --git a/drivers/iio/dac/cio-dac.c b/drivers/iio/dac/cio-dac.c index 6898b0c79013..81677795e57a 100644 --- a/drivers/iio/dac/cio-dac.c +++ b/drivers/iio/dac/cio-dac.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO driver for the Measurement Computing CIO-DAC * Copyright (C) 2016 William Breathitt Gray * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * * This driver supports the following Measurement Computing devices: CIO-DAC16, * CIO-DAC06, and PC104-DAC06. */ diff --git a/drivers/iio/dac/ds4424.c b/drivers/iio/dac/ds4424.c index 883a47562055..26d206681472 100644 --- a/drivers/iio/dac/ds4424.c +++ b/drivers/iio/dac/ds4424.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Maxim Integrated * 7-bit, Multi-Channel Sink/Source Current DAC Driver * Copyright (C) 2017 Maxim Integrated - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/kernel.h> @@ -166,7 +163,7 @@ static int ds4424_verify_chip(struct iio_dev *indio_dev) { int ret, val; - ret = ds4424_get_value(indio_dev, &val, DS4424_DAC_ADDR(0)); + ret = ds4424_get_value(indio_dev, &val, 0); if (ret < 0) dev_err(&indio_dev->dev, "%s failed. ret: %d\n", __func__, ret); @@ -236,12 +233,6 @@ static int ds4424_probe(struct i2c_client *client, indio_dev->dev.of_node = client->dev.of_node; indio_dev->dev.parent = &client->dev; - if (!client->dev.of_node) { - dev_err(&client->dev, - "Not found DT.\n"); - return -ENODEV; - } - data->vcc_reg = devm_regulator_get(&client->dev, "vcc"); if (IS_ERR(data->vcc_reg)) { dev_err(&client->dev, diff --git a/drivers/iio/dac/lpc18xx_dac.c b/drivers/iio/dac/lpc18xx_dac.c index 7036f77fdf23..883e84e96609 100644 --- a/drivers/iio/dac/lpc18xx_dac.c +++ b/drivers/iio/dac/lpc18xx_dac.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO DAC driver for NXP LPC18xx DAC * * Copyright (C) 2016 Joachim Eastwood <manabian@gmail.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * UNSUPPORTED hardware features: * - Interrupts * - DMA diff --git a/drivers/iio/dac/ltc2632.c b/drivers/iio/dac/ltc2632.c index 15d498fc4758..643d1ce956ce 100644 --- a/drivers/iio/dac/ltc2632.c +++ b/drivers/iio/dac/ltc2632.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * LTC2632 Digital to analog convertors spi driver * * Copyright 2017 Maxime Roussin-Bélanger * expanded by Silvan Murer <silvan.murer@gmail.com> - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/dac/m62332.c b/drivers/iio/dac/m62332.c index 19031943dabe..3205ca98c32d 100644 --- a/drivers/iio/dac/m62332.c +++ b/drivers/iio/dac/m62332.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * m62332.c - Support for Mitsubishi m62332 DAC * @@ -5,16 +6,6 @@ * * Based on max517 driver: * Copyright (C) 2010, 2011 Roland Stigge <stigge@antcom.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c index 451d10e323cf..7e01838ef4d0 100644 --- a/drivers/iio/dac/max517.c +++ b/drivers/iio/dac/max517.c @@ -1,21 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * max517.c - Support for Maxim MAX517, MAX518 and MAX519 * * Copyright (C) 2010, 2011 Roland Stigge <stigge@antcom.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/module.h> diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c index f0cf6903dcd2..2da086e372af 100644 --- a/drivers/iio/dac/max5821.c +++ b/drivers/iio/dac/max5821.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * iio/dac/max5821.c * Copyright (C) 2014 Philippe Reynes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c index c701a45469f6..ed455e801e80 100644 --- a/drivers/iio/dac/mcp4725.c +++ b/drivers/iio/dac/mcp4725.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * mcp4725.c - Support for Microchip MCP4725/6 * @@ -5,10 +6,6 @@ * * Based on max517 by Roland Stigge <stigge@antcom.de> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * driver for the Microchip I2C 12-bit digital-to-analog converter (DAC) * (7-bit I2C slave address 0x60, the three LSBs can be configured in * hardware) diff --git a/drivers/iio/dac/mcp4922.c b/drivers/iio/dac/mcp4922.c index b5190d1dae8e..f9194b3ddc9c 100644 --- a/drivers/iio/dac/mcp4922.c +++ b/drivers/iio/dac/mcp4922.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * mcp4922.c * @@ -5,17 +6,6 @@ * Supports MCP4902, MCP4912, and MCP4922. * * Copyright (c) 2014 EMAC Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/module.h> diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c index 4e1e28339c84..57b498d2a2a5 100644 --- a/drivers/iio/dac/ti-dac082s085.c +++ b/drivers/iio/dac/ti-dac082s085.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ti-dac082s085.c - Texas Instruments 8/10/12-bit 2/4-channel DAC driver * @@ -9,10 +10,6 @@ * http://www.ti.com/lit/ds/symlink/dac084s085.pdf * http://www.ti.com/lit/ds/symlink/dac104s085.pdf * http://www.ti.com/lit/ds/symlink/dac124s085.pdf - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2) as - * published by the Free Software Foundation. */ #include <linux/iio/iio.h> diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c index 891e9cac019e..3a2bb0efe50d 100644 --- a/drivers/iio/dac/ti-dac5571.c +++ b/drivers/iio/dac/ti-dac5571.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ti-dac5571.c - Texas Instruments 8/10/12-bit 1/4-channel DAC driver * @@ -12,10 +13,6 @@ * http://www.ti.com/lit/ds/symlink/dac5573.pdf * http://www.ti.com/lit/ds/symlink/dac6573.pdf * http://www.ti.com/lit/ds/symlink/dac7573.pdf - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2) as - * published by the Free Software Foundation. */ #include <linux/iio/iio.h> diff --git a/drivers/iio/dac/vf610_dac.c b/drivers/iio/dac/vf610_dac.c index 5dccdd16cab3..0ec4d2609ef9 100644 --- a/drivers/iio/dac/vf610_dac.c +++ b/drivers/iio/dac/vf610_dac.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Freescale Vybrid vf610 DAC driver * * Copyright 2016 Toradex AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk.h> diff --git a/drivers/iio/dummy/Kconfig b/drivers/iio/dummy/Kconfig index c4fd108e91d3..5c5c2f8c55f3 100644 --- a/drivers/iio/dummy/Kconfig +++ b/drivers/iio/dummy/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Industrial I/O subsystem Dummy Driver configuration # diff --git a/drivers/iio/dummy/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c index c6033e341963..a6edf30567aa 100644 --- a/drivers/iio/dummy/iio_dummy_evgen.c +++ b/drivers/iio/dummy/iio_dummy_evgen.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Copyright (c) 2011 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Companion module to the iio simple dummy example driver. * The purpose of this is to generate 'fake' event interrupts thus * allowing that driver's code to be as close as possible to that of diff --git a/drivers/iio/dummy/iio_simple_dummy.c b/drivers/iio/dummy/iio_simple_dummy.c index 62052479c349..8f99c005458a 100644 --- a/drivers/iio/dummy/iio_simple_dummy.c +++ b/drivers/iio/dummy/iio_simple_dummy.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Copyright (c) 2011 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * A reference industrial I/O driver to illustrate the functionality available. * * There are numerous real drivers to illustrate the finer points. diff --git a/drivers/iio/dummy/iio_simple_dummy.h b/drivers/iio/dummy/iio_simple_dummy.h index f7005c3f5df3..a91622ac54e0 100644 --- a/drivers/iio/dummy/iio_simple_dummy.h +++ b/drivers/iio/dummy/iio_simple_dummy.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /** * Copyright (c) 2011 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Join together the various functionality of iio_simple_dummy driver */ diff --git a/drivers/iio/dummy/iio_simple_dummy_buffer.c b/drivers/iio/dummy/iio_simple_dummy_buffer.c index 744ca92c3c99..17606eca42b4 100644 --- a/drivers/iio/dummy/iio_simple_dummy_buffer.c +++ b/drivers/iio/dummy/iio_simple_dummy_buffer.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Copyright (c) 2011 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Buffer handling elements of industrial I/O reference driver. * Uses the kfifo buffer. * diff --git a/drivers/iio/dummy/iio_simple_dummy_events.c b/drivers/iio/dummy/iio_simple_dummy_events.c index 7ec2a0bb0807..b3abaaca6f5e 100644 --- a/drivers/iio/dummy/iio_simple_dummy_events.c +++ b/drivers/iio/dummy/iio_simple_dummy_events.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Copyright (c) 2011 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Event handling elements of industrial I/O reference driver. */ #include <linux/kernel.h> diff --git a/drivers/iio/frequency/Kconfig b/drivers/iio/frequency/Kconfig index dc5e0b72882f..240b81502512 100644 --- a/drivers/iio/frequency/Kconfig +++ b/drivers/iio/frequency/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Frequency # Direct Digital Synthesis drivers (DDS) @@ -38,5 +39,15 @@ config ADF4350 To compile this driver as a module, choose M here: the module will be called adf4350. +config ADF4371 + tristate "Analog Devices ADF4371/ADF4372 Wideband Synthesizers" + depends on SPI + select REGMAP_SPI + help + Say yes here to build support for Analog Devices ADF4371 and ADF4372 + Wideband Synthesizers. The driver provides direct access via sysfs. + + To compile this driver as a module, choose M here: the + module will be called adf4371. endmenu endmenu diff --git a/drivers/iio/frequency/Makefile b/drivers/iio/frequency/Makefile index 2bca03f3e2e3..518b1e50caef 100644 --- a/drivers/iio/frequency/Makefile +++ b/drivers/iio/frequency/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile iio/frequency # @@ -5,3 +6,4 @@ # When adding new entries keep the list in alphabetical order obj-$(CONFIG_AD9523) += ad9523.o obj-$(CONFIG_ADF4350) += adf4350.o +obj-$(CONFIG_ADF4371) += adf4371.o diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c index 9b9eee27176c..a7322184cbdd 100644 --- a/drivers/iio/frequency/ad9523.c +++ b/drivers/iio/frequency/ad9523.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AD9523 SPI Low Jitter Clock Generator * * Copyright 2012 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> @@ -862,9 +861,11 @@ static int ad9523_setup(struct iio_dev *indio_dev) if (ret < 0) return ret; - st->vco_freq = (pdata->vcxo_freq * (pdata->pll2_freq_doubler_en ? 2 : 1) - / pdata->pll2_r2_div) * AD9523_PLL2_FB_NDIV(pdata-> - pll2_ndiv_a_cnt, pdata->pll2_ndiv_b_cnt); + st->vco_freq = div_u64((unsigned long long)pdata->vcxo_freq * + (pdata->pll2_freq_doubler_en ? 2 : 1) * + AD9523_PLL2_FB_NDIV(pdata->pll2_ndiv_a_cnt, + pdata->pll2_ndiv_b_cnt), + pdata->pll2_r2_div); ret = ad9523_write(indio_dev, AD9523_PLL2_VCO_CTRL, AD9523_PLL2_VCO_CALIBRATE); diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index f4748ff243f7..ae0ca09ae062 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADF4350/ADF4351 SPI Wideband Synthesizer driver * * Copyright 2012-2013 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/device.h> diff --git a/drivers/iio/frequency/adf4371.c b/drivers/iio/frequency/adf4371.c new file mode 100644 index 000000000000..e48f15cc9ab5 --- /dev/null +++ b/drivers/iio/frequency/adf4371.c @@ -0,0 +1,632 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Analog Devices ADF4371 SPI Wideband Synthesizer driver + * + * Copyright 2019 Analog Devices Inc. + */ +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/gcd.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/sysfs.h> +#include <linux/spi/spi.h> + +#include <linux/iio/iio.h> + +/* Registers address macro */ +#define ADF4371_REG(x) (x) + +/* ADF4371_REG0 */ +#define ADF4371_ADDR_ASC_MSK BIT(2) +#define ADF4371_ADDR_ASC(x) FIELD_PREP(ADF4371_ADDR_ASC_MSK, x) +#define ADF4371_ADDR_ASC_R_MSK BIT(5) +#define ADF4371_ADDR_ASC_R(x) FIELD_PREP(ADF4371_ADDR_ASC_R_MSK, x) +#define ADF4371_RESET_CMD 0x81 + +/* ADF4371_REG17 */ +#define ADF4371_FRAC2WORD_L_MSK GENMASK(7, 1) +#define ADF4371_FRAC2WORD_L(x) FIELD_PREP(ADF4371_FRAC2WORD_L_MSK, x) +#define ADF4371_FRAC1WORD_MSK BIT(0) +#define ADF4371_FRAC1WORD(x) FIELD_PREP(ADF4371_FRAC1WORD_MSK, x) + +/* ADF4371_REG18 */ +#define ADF4371_FRAC2WORD_H_MSK GENMASK(6, 0) +#define ADF4371_FRAC2WORD_H(x) FIELD_PREP(ADF4371_FRAC2WORD_H_MSK, x) + +/* ADF4371_REG1A */ +#define ADF4371_MOD2WORD_MSK GENMASK(5, 0) +#define ADF4371_MOD2WORD(x) FIELD_PREP(ADF4371_MOD2WORD_MSK, x) + +/* ADF4371_REG24 */ +#define ADF4371_RF_DIV_SEL_MSK GENMASK(6, 4) +#define ADF4371_RF_DIV_SEL(x) FIELD_PREP(ADF4371_RF_DIV_SEL_MSK, x) + +/* ADF4371_REG25 */ +#define ADF4371_MUTE_LD_MSK BIT(7) +#define ADF4371_MUTE_LD(x) FIELD_PREP(ADF4371_MUTE_LD_MSK, x) + +/* ADF4371_REG32 */ +#define ADF4371_TIMEOUT_MSK GENMASK(1, 0) +#define ADF4371_TIMEOUT(x) FIELD_PREP(ADF4371_TIMEOUT_MSK, x) + +/* ADF4371_REG34 */ +#define ADF4371_VCO_ALC_TOUT_MSK GENMASK(4, 0) +#define ADF4371_VCO_ALC_TOUT(x) FIELD_PREP(ADF4371_VCO_ALC_TOUT_MSK, x) + +/* Specifications */ +#define ADF4371_MIN_VCO_FREQ 4000000000ULL /* 4000 MHz */ +#define ADF4371_MAX_VCO_FREQ 8000000000ULL /* 8000 MHz */ +#define ADF4371_MAX_OUT_RF8_FREQ ADF4371_MAX_VCO_FREQ /* Hz */ +#define ADF4371_MIN_OUT_RF8_FREQ (ADF4371_MIN_VCO_FREQ / 64) /* Hz */ +#define ADF4371_MAX_OUT_RF16_FREQ (ADF4371_MAX_VCO_FREQ * 2) /* Hz */ +#define ADF4371_MIN_OUT_RF16_FREQ (ADF4371_MIN_VCO_FREQ * 2) /* Hz */ +#define ADF4371_MAX_OUT_RF32_FREQ (ADF4371_MAX_VCO_FREQ * 4) /* Hz */ +#define ADF4371_MIN_OUT_RF32_FREQ (ADF4371_MIN_VCO_FREQ * 4) /* Hz */ + +#define ADF4371_MAX_FREQ_PFD 250000000UL /* Hz */ +#define ADF4371_MAX_FREQ_REFIN 600000000UL /* Hz */ + +/* MOD1 is a 24-bit primary modulus with fixed value of 2^25 */ +#define ADF4371_MODULUS1 33554432ULL +/* MOD2 is the programmable, 14-bit auxiliary fractional modulus */ +#define ADF4371_MAX_MODULUS2 BIT(14) + +#define ADF4371_CHECK_RANGE(freq, range) \ + ((freq > ADF4371_MAX_ ## range) || (freq < ADF4371_MIN_ ## range)) + +enum { + ADF4371_FREQ, + ADF4371_POWER_DOWN, + ADF4371_CHANNEL_NAME +}; + +enum { + ADF4371_CH_RF8, + ADF4371_CH_RFAUX8, + ADF4371_CH_RF16, + ADF4371_CH_RF32 +}; + +enum adf4371_variant { + ADF4371, + ADF4372 +}; + +struct adf4371_pwrdown { + unsigned int reg; + unsigned int bit; +}; + +static const char * const adf4371_ch_names[] = { + "RF8x", "RFAUX8x", "RF16x", "RF32x" +}; + +static const struct adf4371_pwrdown adf4371_pwrdown_ch[4] = { + [ADF4371_CH_RF8] = { ADF4371_REG(0x25), 2 }, + [ADF4371_CH_RFAUX8] = { ADF4371_REG(0x72), 3 }, + [ADF4371_CH_RF16] = { ADF4371_REG(0x25), 3 }, + [ADF4371_CH_RF32] = { ADF4371_REG(0x25), 4 }, +}; + +static const struct reg_sequence adf4371_reg_defaults[] = { + { ADF4371_REG(0x0), 0x18 }, + { ADF4371_REG(0x12), 0x40 }, + { ADF4371_REG(0x1E), 0x48 }, + { ADF4371_REG(0x20), 0x14 }, + { ADF4371_REG(0x22), 0x00 }, + { ADF4371_REG(0x23), 0x00 }, + { ADF4371_REG(0x24), 0x80 }, + { ADF4371_REG(0x25), 0x07 }, + { ADF4371_REG(0x27), 0xC5 }, + { ADF4371_REG(0x28), 0x83 }, + { ADF4371_REG(0x2C), 0x44 }, + { ADF4371_REG(0x2D), 0x11 }, + { ADF4371_REG(0x2E), 0x12 }, + { ADF4371_REG(0x2F), 0x94 }, + { ADF4371_REG(0x32), 0x04 }, + { ADF4371_REG(0x35), 0xFA }, + { ADF4371_REG(0x36), 0x30 }, + { ADF4371_REG(0x39), 0x07 }, + { ADF4371_REG(0x3A), 0x55 }, + { ADF4371_REG(0x3E), 0x0C }, + { ADF4371_REG(0x3F), 0x80 }, + { ADF4371_REG(0x40), 0x50 }, + { ADF4371_REG(0x41), 0x28 }, + { ADF4371_REG(0x47), 0xC0 }, + { ADF4371_REG(0x52), 0xF4 }, + { ADF4371_REG(0x70), 0x03 }, + { ADF4371_REG(0x71), 0x60 }, + { ADF4371_REG(0x72), 0x32 }, +}; + +static const struct regmap_config adf4371_regmap_config = { + .reg_bits = 16, + .val_bits = 8, + .read_flag_mask = BIT(7), +}; + +struct adf4371_chip_info { + unsigned int num_channels; + const struct iio_chan_spec *channels; +}; + +struct adf4371_state { + struct spi_device *spi; + struct regmap *regmap; + struct clk *clkin; + /* + * Lock for accessing device registers. Some operations require + * multiple consecutive R/W operations, during which the device + * shouldn't be interrupted. The buffers are also shared across + * all operations so need to be protected on stand alone reads and + * writes. + */ + struct mutex lock; + const struct adf4371_chip_info *chip_info; + unsigned long clkin_freq; + unsigned long fpfd; + unsigned int integer; + unsigned int fract1; + unsigned int fract2; + unsigned int mod2; + unsigned int rf_div_sel; + unsigned int ref_div_factor; + u8 buf[10] ____cacheline_aligned; +}; + +static unsigned long long adf4371_pll_fract_n_get_rate(struct adf4371_state *st, + u32 channel) +{ + unsigned long long val, tmp; + unsigned int ref_div_sel; + + val = (((u64)st->integer * ADF4371_MODULUS1) + st->fract1) * st->fpfd; + tmp = (u64)st->fract2 * st->fpfd; + do_div(tmp, st->mod2); + val += tmp + ADF4371_MODULUS1 / 2; + + if (channel == ADF4371_CH_RF8 || channel == ADF4371_CH_RFAUX8) + ref_div_sel = st->rf_div_sel; + else + ref_div_sel = 0; + + do_div(val, ADF4371_MODULUS1 * (1 << ref_div_sel)); + + if (channel == ADF4371_CH_RF16) + val <<= 1; + else if (channel == ADF4371_CH_RF32) + val <<= 2; + + return val; +} + +static void adf4371_pll_fract_n_compute(unsigned long long vco, + unsigned long long pfd, + unsigned int *integer, + unsigned int *fract1, + unsigned int *fract2, + unsigned int *mod2) +{ + unsigned long long tmp; + u32 gcd_div; + + tmp = do_div(vco, pfd); + tmp = tmp * ADF4371_MODULUS1; + *fract2 = do_div(tmp, pfd); + + *integer = vco; + *fract1 = tmp; + + *mod2 = pfd; + + while (*mod2 > ADF4371_MAX_MODULUS2) { + *mod2 >>= 1; + *fract2 >>= 1; + } + + gcd_div = gcd(*fract2, *mod2); + *mod2 /= gcd_div; + *fract2 /= gcd_div; +} + +static int adf4371_set_freq(struct adf4371_state *st, unsigned long long freq, + unsigned int channel) +{ + u32 cp_bleed; + u8 int_mode = 0; + int ret; + + switch (channel) { + case ADF4371_CH_RF8: + case ADF4371_CH_RFAUX8: + if (ADF4371_CHECK_RANGE(freq, OUT_RF8_FREQ)) + return -EINVAL; + + st->rf_div_sel = 0; + + while (freq < ADF4371_MIN_VCO_FREQ) { + freq <<= 1; + st->rf_div_sel++; + } + break; + case ADF4371_CH_RF16: + /* ADF4371 RF16 8000...16000 MHz */ + if (ADF4371_CHECK_RANGE(freq, OUT_RF16_FREQ)) + return -EINVAL; + + freq >>= 1; + break; + case ADF4371_CH_RF32: + /* ADF4371 RF32 16000...32000 MHz */ + if (ADF4371_CHECK_RANGE(freq, OUT_RF32_FREQ)) + return -EINVAL; + + freq >>= 2; + break; + default: + return -EINVAL; + } + + adf4371_pll_fract_n_compute(freq, st->fpfd, &st->integer, &st->fract1, + &st->fract2, &st->mod2); + st->buf[0] = st->integer >> 8; + st->buf[1] = 0x40; /* REG12 default */ + st->buf[2] = 0x00; + st->buf[3] = st->fract2 & 0xFF; + st->buf[4] = st->fract2 >> 7; + st->buf[5] = st->fract2 >> 15; + st->buf[6] = ADF4371_FRAC2WORD_L(st->fract2 & 0x7F) | + ADF4371_FRAC1WORD(st->fract1 >> 23); + st->buf[7] = ADF4371_FRAC2WORD_H(st->fract2 >> 7); + st->buf[8] = st->mod2 & 0xFF; + st->buf[9] = ADF4371_MOD2WORD(st->mod2 >> 8); + + ret = regmap_bulk_write(st->regmap, ADF4371_REG(0x11), st->buf, 10); + if (ret < 0) + return ret; + /* + * The R counter allows the input reference frequency to be + * divided down to produce the reference clock to the PFD + */ + ret = regmap_write(st->regmap, ADF4371_REG(0x1F), st->ref_div_factor); + if (ret < 0) + return ret; + + ret = regmap_update_bits(st->regmap, ADF4371_REG(0x24), + ADF4371_RF_DIV_SEL_MSK, + ADF4371_RF_DIV_SEL(st->rf_div_sel)); + if (ret < 0) + return ret; + + cp_bleed = DIV_ROUND_UP(400 * 1750, st->integer * 375); + cp_bleed = clamp(cp_bleed, 1U, 255U); + ret = regmap_write(st->regmap, ADF4371_REG(0x26), cp_bleed); + if (ret < 0) + return ret; + /* + * Set to 1 when in INT mode (when FRAC1 = FRAC2 = 0), + * and set to 0 when in FRAC mode. + */ + if (st->fract1 == 0 && st->fract2 == 0) + int_mode = 0x01; + + ret = regmap_write(st->regmap, ADF4371_REG(0x2B), int_mode); + if (ret < 0) + return ret; + + return regmap_write(st->regmap, ADF4371_REG(0x10), st->integer & 0xFF); +} + +static ssize_t adf4371_read(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, + char *buf) +{ + struct adf4371_state *st = iio_priv(indio_dev); + unsigned long long val = 0; + unsigned int readval, reg, bit; + int ret; + + switch ((u32)private) { + case ADF4371_FREQ: + val = adf4371_pll_fract_n_get_rate(st, chan->channel); + ret = regmap_read(st->regmap, ADF4371_REG(0x7C), &readval); + if (ret < 0) + break; + + if (readval == 0x00) { + dev_dbg(&st->spi->dev, "PLL un-locked\n"); + ret = -EBUSY; + } + break; + case ADF4371_POWER_DOWN: + reg = adf4371_pwrdown_ch[chan->channel].reg; + bit = adf4371_pwrdown_ch[chan->channel].bit; + + ret = regmap_read(st->regmap, reg, &readval); + if (ret < 0) + break; + + val = !(readval & BIT(bit)); + break; + case ADF4371_CHANNEL_NAME: + return sprintf(buf, "%s\n", adf4371_ch_names[chan->channel]); + default: + ret = -EINVAL; + val = 0; + break; + } + + return ret < 0 ? ret : sprintf(buf, "%llu\n", val); +} + +static ssize_t adf4371_write(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, + const char *buf, size_t len) +{ + struct adf4371_state *st = iio_priv(indio_dev); + unsigned long long freq; + bool power_down; + unsigned int bit, readval, reg; + int ret; + + mutex_lock(&st->lock); + switch ((u32)private) { + case ADF4371_FREQ: + ret = kstrtoull(buf, 10, &freq); + if (ret) + break; + + ret = adf4371_set_freq(st, freq, chan->channel); + break; + case ADF4371_POWER_DOWN: + ret = kstrtobool(buf, &power_down); + if (ret) + break; + + reg = adf4371_pwrdown_ch[chan->channel].reg; + bit = adf4371_pwrdown_ch[chan->channel].bit; + ret = regmap_read(st->regmap, reg, &readval); + if (ret < 0) + break; + + readval &= ~BIT(bit); + readval |= (!power_down << bit); + + ret = regmap_write(st->regmap, reg, readval); + break; + default: + ret = -EINVAL; + break; + } + mutex_unlock(&st->lock); + + return ret ? ret : len; +} + +#define _ADF4371_EXT_INFO(_name, _ident) { \ + .name = _name, \ + .read = adf4371_read, \ + .write = adf4371_write, \ + .private = _ident, \ + .shared = IIO_SEPARATE, \ +} + +static const struct iio_chan_spec_ext_info adf4371_ext_info[] = { + /* + * Ideally we use IIO_CHAN_INFO_FREQUENCY, but there are + * values > 2^32 in order to support the entire frequency range + * in Hz. Using scale is a bit ugly. + */ + _ADF4371_EXT_INFO("frequency", ADF4371_FREQ), + _ADF4371_EXT_INFO("powerdown", ADF4371_POWER_DOWN), + _ADF4371_EXT_INFO("name", ADF4371_CHANNEL_NAME), + { }, +}; + +#define ADF4371_CHANNEL(index) { \ + .type = IIO_ALTVOLTAGE, \ + .output = 1, \ + .channel = index, \ + .ext_info = adf4371_ext_info, \ + .indexed = 1, \ + } + +static const struct iio_chan_spec adf4371_chan[] = { + ADF4371_CHANNEL(ADF4371_CH_RF8), + ADF4371_CHANNEL(ADF4371_CH_RFAUX8), + ADF4371_CHANNEL(ADF4371_CH_RF16), + ADF4371_CHANNEL(ADF4371_CH_RF32), +}; + +static const struct adf4371_chip_info adf4371_chip_info[] = { + [ADF4371] = { + .channels = adf4371_chan, + .num_channels = 4, + }, + [ADF4372] = { + .channels = adf4371_chan, + .num_channels = 3, + } +}; + +static int adf4371_reg_access(struct iio_dev *indio_dev, + unsigned int reg, + unsigned int writeval, + unsigned int *readval) +{ + struct adf4371_state *st = iio_priv(indio_dev); + + if (readval) + return regmap_read(st->regmap, reg, readval); + else + return regmap_write(st->regmap, reg, writeval); +} + +static const struct iio_info adf4371_info = { + .debugfs_reg_access = &adf4371_reg_access, +}; + +static int adf4371_setup(struct adf4371_state *st) +{ + unsigned int synth_timeout = 2, timeout = 1, vco_alc_timeout = 1; + unsigned int vco_band_div, tmp; + int ret; + + /* Perform a software reset */ + ret = regmap_write(st->regmap, ADF4371_REG(0x0), ADF4371_RESET_CMD); + if (ret < 0) + return ret; + + ret = regmap_multi_reg_write(st->regmap, adf4371_reg_defaults, + ARRAY_SIZE(adf4371_reg_defaults)); + if (ret < 0) + return ret; + + /* Mute to Lock Detect */ + if (device_property_read_bool(&st->spi->dev, "adi,mute-till-lock-en")) { + ret = regmap_update_bits(st->regmap, ADF4371_REG(0x25), + ADF4371_MUTE_LD_MSK, + ADF4371_MUTE_LD(1)); + if (ret < 0) + return ret; + } + + /* Set address in ascending order, so the bulk_write() will work */ + ret = regmap_update_bits(st->regmap, ADF4371_REG(0x0), + ADF4371_ADDR_ASC_MSK | ADF4371_ADDR_ASC_R_MSK, + ADF4371_ADDR_ASC(1) | ADF4371_ADDR_ASC_R(1)); + if (ret < 0) + return ret; + /* + * Calculate and maximize PFD frequency + * fPFD = REFIN × ((1 + D)/(R × (1 + T))) + * Where D is the REFIN doubler bit, T is the reference divide by 2, + * R is the reference division factor + * TODO: it is assumed D and T equal 0. + */ + do { + st->ref_div_factor++; + st->fpfd = st->clkin_freq / st->ref_div_factor; + } while (st->fpfd > ADF4371_MAX_FREQ_PFD); + + /* Calculate Timeouts */ + vco_band_div = DIV_ROUND_UP(st->fpfd, 2400000U); + + tmp = DIV_ROUND_CLOSEST(st->fpfd, 1000000U); + do { + timeout++; + if (timeout > 1023) { + timeout = 2; + synth_timeout++; + } + } while (synth_timeout * 1024 + timeout <= 20 * tmp); + + do { + vco_alc_timeout++; + } while (vco_alc_timeout * 1024 - timeout <= 50 * tmp); + + st->buf[0] = vco_band_div; + st->buf[1] = timeout & 0xFF; + st->buf[2] = ADF4371_TIMEOUT(timeout >> 8) | 0x04; + st->buf[3] = synth_timeout; + st->buf[4] = ADF4371_VCO_ALC_TOUT(vco_alc_timeout); + + return regmap_bulk_write(st->regmap, ADF4371_REG(0x30), st->buf, 5); +} + +static void adf4371_clk_disable(void *data) +{ + struct adf4371_state *st = data; + + clk_disable_unprepare(st->clkin); +} + +static int adf4371_probe(struct spi_device *spi) +{ + const struct spi_device_id *id = spi_get_device_id(spi); + struct iio_dev *indio_dev; + struct adf4371_state *st; + struct regmap *regmap; + int ret; + + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; + + regmap = devm_regmap_init_spi(spi, &adf4371_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Error initializing spi regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + st = iio_priv(indio_dev); + spi_set_drvdata(spi, indio_dev); + st->spi = spi; + st->regmap = regmap; + mutex_init(&st->lock); + + st->chip_info = &adf4371_chip_info[id->driver_data]; + indio_dev->dev.parent = &spi->dev; + indio_dev->name = id->name; + indio_dev->info = &adf4371_info; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = st->chip_info->channels; + indio_dev->num_channels = st->chip_info->num_channels; + + st->clkin = devm_clk_get(&spi->dev, "clkin"); + if (IS_ERR(st->clkin)) + return PTR_ERR(st->clkin); + + ret = clk_prepare_enable(st->clkin); + if (ret < 0) + return ret; + + ret = devm_add_action_or_reset(&spi->dev, adf4371_clk_disable, st); + if (ret) + return ret; + + st->clkin_freq = clk_get_rate(st->clkin); + + ret = adf4371_setup(st); + if (ret < 0) { + dev_err(&spi->dev, "ADF4371 setup failed\n"); + return ret; + } + + return devm_iio_device_register(&spi->dev, indio_dev); +} + +static const struct spi_device_id adf4371_id_table[] = { + { "adf4371", ADF4371 }, + { "adf4372", ADF4372 }, + {} +}; +MODULE_DEVICE_TABLE(spi, adf4371_id_table); + +static const struct of_device_id adf4371_of_match[] = { + { .compatible = "adi,adf4371" }, + { .compatible = "adi,adf4372" }, + { }, +}; +MODULE_DEVICE_TABLE(of, adf4371_of_match); + +static struct spi_driver adf4371_driver = { + .driver = { + .name = "adf4371", + .of_match_table = adf4371_of_match, + }, + .probe = adf4371_probe, + .id_table = adf4371_id_table, +}; +module_spi_driver(adf4371_driver); + +MODULE_AUTHOR("Stefan Popa <stefan.popa@analog.com>"); +MODULE_DESCRIPTION("Analog Devices ADF4371 SPI PLL"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index 61c00cee037d..95e6f96d4529 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # IIO Digital Gyroscope Sensor drivers configuration # diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c index a551ebde4762..236220d6de02 100644 --- a/drivers/iio/gyro/adis16080.c +++ b/drivers/iio/gyro/adis16080.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ADIS16080/100 Yaw Rate Gyroscope with SPI driver * * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/delay.h> #include <linux/mutex.h> diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c index aea80ab04122..de3f66f89496 100644 --- a/drivers/iio/gyro/adis16130.c +++ b/drivers/iio/gyro/adis16130.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ADIS16130 Digital Output, High Precision Angular Rate Sensor driver * * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/mutex.h> diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c index 605eee23780c..5bec7ad53d8b 100644 --- a/drivers/iio/gyro/adis16136.c +++ b/drivers/iio/gyro/adis16136.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADIS16133/ADIS16135/ADIS16136 gyroscope driver * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c index a8cb1ca349d9..207a0ce13439 100644 --- a/drivers/iio/gyro/adis16260.c +++ b/drivers/iio/gyro/adis16260.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ADIS16260/ADIS16265 Programmable Digital Gyroscope Sensor Driver * * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. */ #include <linux/interrupt.h> diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c index 5d39fd008378..b00c0eb44249 100644 --- a/drivers/iio/gyro/adxrs450.c +++ b/drivers/iio/gyro/adxrs450.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADXRS450/ADXRS453 Digital Output Gyroscope Driver * * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. */ #include <linux/interrupt.h> diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index f26041e26c65..428ddfc13acb 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * BMG160 Gyro Sensor driver * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/gyro/bmg160_i2c.c b/drivers/iio/gyro/bmg160_i2c.c index 934a092134f0..4fc9c6a3321f 100644 --- a/drivers/iio/gyro/bmg160_i2c.c +++ b/drivers/iio/gyro/bmg160_i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/iio/iio.h> diff --git a/drivers/iio/gyro/bmg160_spi.c b/drivers/iio/gyro/bmg160_spi.c index 021ea5fe6a37..182a59c42507 100644 --- a/drivers/iio/gyro/bmg160_spi.c +++ b/drivers/iio/gyro/bmg160_spi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/spi/spi.h> #include <linux/regmap.h> #include <linux/iio/iio.h> diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c index 88e857c4baf4..08cacbbf31e6 100644 --- a/drivers/iio/gyro/hid-sensor-gyro-3d.c +++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c @@ -1,20 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c index 59770e5b6660..d3fbe9d86467 100644 --- a/drivers/iio/gyro/itg3200_buffer.c +++ b/drivers/iio/gyro/itg3200_buffer.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * itg3200_buffer.c -- support InvenSense ITG3200 * Digital 3-Axis Gyroscope driver @@ -5,10 +6,6 @@ * Copyright (c) 2011 Christian Strobel <christian.strobel@iis.fraunhofer.de> * Copyright (c) 2011 Manuel Stahl <manuel.stahl@iis.fraunhofer.de> * Copyright (c) 2012 Thorsten Nowak <thorsten.nowak@iis.fraunhofer.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/slab.h> diff --git a/drivers/iio/gyro/itg3200_core.c b/drivers/iio/gyro/itg3200_core.c index 203a6be33b70..998fb8d66fe3 100644 --- a/drivers/iio/gyro/itg3200_core.c +++ b/drivers/iio/gyro/itg3200_core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * itg3200_core.c -- support InvenSense ITG3200 * Digital 3-Axis Gyroscope driver @@ -6,10 +7,6 @@ * Copyright (c) 2011 Manuel Stahl <manuel.stahl@iis.fraunhofer.de> * Copyright (c) 2012 Thorsten Nowak <thorsten.nowak@iis.fraunhofer.de> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * TODO: * - Support digital low pass filter * - Support power management diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c index 0a406163d775..80154bca18b6 100644 --- a/drivers/iio/gyro/mpu3050-core.c +++ b/drivers/iio/gyro/mpu3050-core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * MPU3050 gyroscope driver * diff --git a/drivers/iio/gyro/mpu3050-i2c.c b/drivers/iio/gyro/mpu3050-i2c.c index 93f08b304a63..afa8018b9238 100644 --- a/drivers/iio/gyro/mpu3050-i2c.c +++ b/drivers/iio/gyro/mpu3050-i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/err.h> #include <linux/i2c.h> #include <linux/i2c-mux.h> diff --git a/drivers/iio/gyro/ssp_gyro_sensor.c b/drivers/iio/gyro/ssp_gyro_sensor.c index 2dacd8e01045..4e4ee4167544 100644 --- a/drivers/iio/gyro/ssp_gyro_sensor.c +++ b/drivers/iio/gyro/ssp_gyro_sensor.c @@ -1,16 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/iio/common/ssp_sensors.h> diff --git a/drivers/iio/gyro/st_gyro.h b/drivers/iio/gyro/st_gyro.h index 48923ae6ac3b..460d190be4a4 100644 --- a/drivers/iio/gyro/st_gyro.h +++ b/drivers/iio/gyro/st_gyro.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics gyroscopes driver * @@ -5,7 +6,6 @@ * * Denis Ciocca <denis.ciocca@st.com> * v. 1.0.0 - * Licensed under the GPL-2. */ #ifndef ST_GYRO_H diff --git a/drivers/iio/gyro/st_gyro_buffer.c b/drivers/iio/gyro/st_gyro_buffer.c index a5377044e42f..6e362f735e92 100644 --- a/drivers/iio/gyro/st_gyro_buffer.c +++ b/drivers/iio/gyro/st_gyro_buffer.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics gyroscopes driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/module.h> diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index b31064ba37b9..e995dc77e30e 100644 --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics gyroscopes driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c index b405b82b9177..f2a8683db7d9 100644 --- a/drivers/iio/gyro/st_gyro_i2c.c +++ b/drivers/iio/gyro/st_gyro_i2c.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics gyroscopes driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c index 0b52ed577dc2..93c48248bea6 100644 --- a/drivers/iio/gyro/st_gyro_spi.c +++ b/drivers/iio/gyro/st_gyro_spi.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics gyroscopes driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/health/Kconfig b/drivers/iio/health/Kconfig index a2ecb4c94c2a..a89f3abf11f4 100644 --- a/drivers/iio/health/Kconfig +++ b/drivers/iio/health/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Health sensors # diff --git a/drivers/iio/health/Makefile b/drivers/iio/health/Makefile index 3558f9d64954..910817112258 100644 --- a/drivers/iio/health/Makefile +++ b/drivers/iio/health/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for IIO Health sensors # diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c index a739fff01c6b..dc22dc363a99 100644 --- a/drivers/iio/health/afe4403.c +++ b/drivers/iio/health/afe4403.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AFE4403 Heart Rate Monitors and Low-Cost Pulse Oximeters * * Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/ * Andrew F. Davis <afd@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #include <linux/device.h> diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c index 11910922e655..e728bbb21ca8 100644 --- a/drivers/iio/health/afe4404.c +++ b/drivers/iio/health/afe4404.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AFE4404 Heart Rate Monitors and Low-Cost Pulse Oximeters * * Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/ * Andrew F. Davis <afd@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #include <linux/device.h> diff --git a/drivers/iio/health/afe440x.h b/drivers/iio/health/afe440x.h index 1a0f247043ca..7829c4fcd03b 100644 --- a/drivers/iio/health/afe440x.h +++ b/drivers/iio/health/afe440x.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * AFE440X Heart Rate Monitors and Low-Cost Pulse Oximeters * * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ * Andrew F. Davis <afd@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. */ #ifndef _AFE440X_H diff --git a/drivers/iio/health/max30102.c b/drivers/iio/health/max30102.c index 3e29562ce374..74fc260b957e 100644 --- a/drivers/iio/health/max30102.c +++ b/drivers/iio/health/max30102.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * max30102.c - Support for MAX30102 heart rate and pulse oximeter sensor * @@ -6,16 +7,6 @@ * Support for MAX30105 optical particle sensor * Copyright (C) 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * 7-bit I2C chip address: 0x57 * TODO: proximity power saving feature */ diff --git a/drivers/iio/humidity/Kconfig b/drivers/iio/humidity/Kconfig index f1a8ec9d637b..6c5507a6cd74 100644 --- a/drivers/iio/humidity/Kconfig +++ b/drivers/iio/humidity/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # humidity sensor drivers # diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c index 7d8669dc6547..f18da7859229 100644 --- a/drivers/iio/humidity/am2315.c +++ b/drivers/iio/humidity/am2315.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Aosong AM2315 relative humidity and temperature * * Copyright (c) 2016, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * 7-bit I2C address: 0x5C. */ diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c index 1a9f8f4ffb88..b459600e1a33 100644 --- a/drivers/iio/humidity/dht11.c +++ b/drivers/iio/humidity/dht11.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * DHT11/DHT22 bit banging GPIO driver * * Copyright (c) Harald Geyer <harald@ccbib.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/err.h> @@ -31,8 +22,7 @@ #include <linux/completion.h> #include <linux/mutex.h> #include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #include <linux/timekeeping.h> #include <linux/iio/iio.h> @@ -81,7 +71,7 @@ struct dht11 { struct device *dev; - int gpio; + struct gpio_desc *gpiod; int irq; struct completion completion; @@ -158,7 +148,7 @@ static int dht11_decode(struct dht11 *dht11, int offset) return -EIO; } - dht11->timestamp = ktime_get_boot_ns(); + dht11->timestamp = ktime_get_boottime_ns(); if (hum_int < 4) { /* DHT22: 100000 = (3*256+232)*100 */ dht11->temperature = (((temp_int & 0x7f) << 8) + temp_dec) * ((temp_int & 0x80) ? -100 : 100); @@ -186,9 +176,9 @@ static irqreturn_t dht11_handle_irq(int irq, void *data) /* TODO: Consider making the handler safe for IRQ sharing */ if (dht11->num_edges < DHT11_EDGES_PER_READ && dht11->num_edges >= 0) { - dht11->edges[dht11->num_edges].ts = ktime_get_boot_ns(); + dht11->edges[dht11->num_edges].ts = ktime_get_boottime_ns(); dht11->edges[dht11->num_edges++].value = - gpio_get_value(dht11->gpio); + gpiod_get_value(dht11->gpiod); if (dht11->num_edges >= DHT11_EDGES_PER_READ) complete(&dht11->completion); @@ -205,7 +195,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev, int ret, timeres, offset; mutex_lock(&dht11->lock); - if (dht11->timestamp + DHT11_DATA_VALID_TIME < ktime_get_boot_ns()) { + if (dht11->timestamp + DHT11_DATA_VALID_TIME < ktime_get_boottime_ns()) { timeres = ktime_get_resolution_ns(); dev_dbg(dht11->dev, "current timeresolution: %dns\n", timeres); if (timeres > DHT11_MIN_TIMERES) { @@ -226,12 +216,12 @@ static int dht11_read_raw(struct iio_dev *iio_dev, reinit_completion(&dht11->completion); dht11->num_edges = 0; - ret = gpio_direction_output(dht11->gpio, 0); + ret = gpiod_direction_output(dht11->gpiod, 0); if (ret) goto err; usleep_range(DHT11_START_TRANSMISSION_MIN, DHT11_START_TRANSMISSION_MAX); - ret = gpio_direction_input(dht11->gpio); + ret = gpiod_direction_input(dht11->gpiod); if (ret) goto err; @@ -303,10 +293,8 @@ MODULE_DEVICE_TABLE(of, dht11_dt_ids); static int dht11_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node; struct dht11 *dht11; struct iio_dev *iio; - int ret; iio = devm_iio_device_alloc(dev, sizeof(*dht11)); if (!iio) { @@ -316,22 +304,17 @@ static int dht11_probe(struct platform_device *pdev) dht11 = iio_priv(iio); dht11->dev = dev; + dht11->gpiod = devm_gpiod_get(dev, NULL, GPIOD_IN); + if (IS_ERR(dht11->gpiod)) + return PTR_ERR(dht11->gpiod); - ret = of_get_gpio(node, 0); - if (ret < 0) - return ret; - dht11->gpio = ret; - ret = devm_gpio_request_one(dev, dht11->gpio, GPIOF_IN, pdev->name); - if (ret) - return ret; - - dht11->irq = gpio_to_irq(dht11->gpio); + dht11->irq = gpiod_to_irq(dht11->gpiod); if (dht11->irq < 0) { - dev_err(dev, "GPIO %d has no interrupt\n", dht11->gpio); + dev_err(dev, "GPIO %d has no interrupt\n", desc_to_gpio(dht11->gpiod)); return -EINVAL; } - dht11->timestamp = ktime_get_boot_ns() - DHT11_DATA_VALID_TIME - 1; + dht11->timestamp = ktime_get_boottime_ns() - DHT11_DATA_VALID_TIME - 1; dht11->num_edges = -1; platform_set_drvdata(pdev, iio); diff --git a/drivers/iio/humidity/hid-sensor-humidity.c b/drivers/iio/humidity/hid-sensor-humidity.c index 4bc95f31c730..c99b54b0568d 100644 --- a/drivers/iio/humidity/hid-sensor-humidity.c +++ b/drivers/iio/humidity/hid-sensor-humidity.c @@ -1,18 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2017, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. */ #include <linux/device.h> #include <linux/hid-sensor-hub.h> diff --git a/drivers/iio/humidity/hts221.h b/drivers/iio/humidity/hts221.h index e41a3d83e95d..7d6771f7cf47 100644 --- a/drivers/iio/humidity/hts221.h +++ b/drivers/iio/humidity/hts221.h @@ -1,11 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics hts221 sensor driver * * Copyright 2016 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi@st.com> - * - * Licensed under the GPL-2. */ #ifndef HTS221_H diff --git a/drivers/iio/humidity/hts221_buffer.c b/drivers/iio/humidity/hts221_buffer.c index 1a94b0b91721..81d50a861c22 100644 --- a/drivers/iio/humidity/hts221_buffer.c +++ b/drivers/iio/humidity/hts221_buffer.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics hts221 sensor driver * * Copyright 2016 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> #include <linux/module.h> diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c index 166946d4978d..4922444771c6 100644 --- a/drivers/iio/humidity/hts221_core.c +++ b/drivers/iio/humidity/hts221_core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics hts221 sensor driver * * Copyright 2016 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/humidity/hts221_i2c.c b/drivers/iio/humidity/hts221_i2c.c index b5b3f408a658..4272b7030c44 100644 --- a/drivers/iio/humidity/hts221_i2c.c +++ b/drivers/iio/humidity/hts221_i2c.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics hts221 i2c driver * * Copyright 2016 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/humidity/hts221_spi.c b/drivers/iio/humidity/hts221_spi.c index 9c005f037026..055dba8897d2 100644 --- a/drivers/iio/humidity/hts221_spi.c +++ b/drivers/iio/humidity/hts221_spi.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics hts221 spi driver * * Copyright 2016 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/humidity/htu21.c b/drivers/iio/humidity/htu21.c index f5a2701ba6dd..d4c0589844dd 100644 --- a/drivers/iio/humidity/htu21.c +++ b/drivers/iio/humidity/htu21.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * htu21.c - Support for Measurement-Specialties * htu21 temperature & humidity sensor @@ -5,8 +6,6 @@ * * Copyright (c) 2014 Measurement-Specialties * - * Licensed under the GPL-2. - * * (7-bit I2C slave address 0x40) * * Datasheet: diff --git a/drivers/iio/humidity/si7005.c b/drivers/iio/humidity/si7005.c index 1fd19f035a5d..d5aef0bfef01 100644 --- a/drivers/iio/humidity/si7005.c +++ b/drivers/iio/humidity/si7005.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * si7005.c - Support for Silabs Si7005 humidity and temperature sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * (7-bit I2C slave address 0x40) * * TODO: heater, fast mode, processed mode (temp. / linearity compensation) diff --git a/drivers/iio/humidity/si7020.c b/drivers/iio/humidity/si7020.c index 1b2ec8df1a72..b938f07eed64 100644 --- a/drivers/iio/humidity/si7020.c +++ b/drivers/iio/humidity/si7020.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * si7020.c - Silicon Labs Si7013/20/21 Relative Humidity and Temp Sensors * Copyright (c) 2013,2014 Uplogix, Inc. * David Barksdale <dbarksdale@uplogix.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h index c775fedbcaf6..159ea3f8c02b 100644 --- a/drivers/iio/iio_core.h +++ b/drivers/iio/iio_core.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core function defs. * * Copyright (c) 2008 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * These definitions are meant for use only within the IIO core, not individual * drivers. */ diff --git a/drivers/iio/iio_core_trigger.h b/drivers/iio/iio_core_trigger.h index 1fdb1e4ea4a5..e59fe2f36bbb 100644 --- a/drivers/iio/iio_core_trigger.h +++ b/drivers/iio/iio_core_trigger.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core, trigger consumer handling functions * * Copyright (c) 2008 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifdef CONFIG_IIO_TRIGGER diff --git a/drivers/iio/imu/Kconfig b/drivers/iio/imu/Kconfig index 156630a21696..4957e6df447e 100644 --- a/drivers/iio/imu/Kconfig +++ b/drivers/iio/imu/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # IIO imu drivers configuration # diff --git a/drivers/iio/imu/adis.c b/drivers/iio/imu/adis.c index c771ae6803a9..30281e91dbf9 100644 --- a/drivers/iio/imu/adis.c +++ b/drivers/iio/imu/adis.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Common library for ADIS16XXX devices * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2 or later. */ #include <linux/delay.h> diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c index beb6919e7180..0575ff706bd4 100644 --- a/drivers/iio/imu/adis16400.c +++ b/drivers/iio/imu/adis16400.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * adis16400.c support Analog Devices ADIS16400/5 * 3d 2g Linear Accelerometers, @@ -7,11 +8,6 @@ * Copyright (c) 2009 Manuel Stahl <manuel.stahl@iis.fraunhofer.de> * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org> * Copyright (c) 2011 Analog Devices Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #include <linux/interrupt.h> diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c index ab137c1bbe7b..b99d73887c9f 100644 --- a/drivers/iio/imu/adis16480.c +++ b/drivers/iio/imu/adis16480.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ADIS16480 and similar IMUs driver * * Copyright 2012 Analog Devices Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #include <linux/clk.h> diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c index 3a7c970568dc..9ac8356d9a95 100644 --- a/drivers/iio/imu/adis_buffer.c +++ b/drivers/iio/imu/adis_buffer.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Common library for ADIS16XXX devices * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2 or later. */ #include <linux/export.h> diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c index 457372f36791..8b9cd02c0f9f 100644 --- a/drivers/iio/imu/adis_trigger.c +++ b/drivers/iio/imu/adis_trigger.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Common library for ADIS16XXX devices * * Copyright 2012 Analog Devices Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> - * - * Licensed under the GPL-2 or later. */ #include <linux/interrupt.h> diff --git a/drivers/iio/imu/bmi160/Kconfig b/drivers/iio/imu/bmi160/Kconfig index 005c17ccc2b0..9d14d85cca16 100644 --- a/drivers/iio/imu/bmi160/Kconfig +++ b/drivers/iio/imu/bmi160/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # BMI160 IMU driver # diff --git a/drivers/iio/imu/bmi160/Makefile b/drivers/iio/imu/bmi160/Makefile index 10365e493ae2..fdcfeddf48d4 100644 --- a/drivers/iio/imu/bmi160/Makefile +++ b/drivers/iio/imu/bmi160/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for Bosch BMI160 IMU # diff --git a/drivers/iio/imu/inv_mpu6050/Kconfig b/drivers/iio/imu/inv_mpu6050/Kconfig index d2fe9dbddda7..395f3bd7de0a 100644 --- a/drivers/iio/imu/inv_mpu6050/Kconfig +++ b/drivers/iio/imu/inv_mpu6050/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # inv-mpu6050 drivers for Invensense MPU devices and combos # diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c index a961b5a06fe6..2f8560ba4572 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * inv_mpu_acpi: ACPI processing for creating client devices * Copyright (c) 2015, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifdef CONFIG_ACPI diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 6138a6d86afb..53a59957cc54 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Invensense, Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. */ #include <linux/module.h> @@ -471,7 +463,10 @@ inv_mpu6050_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: *val = 0; - *val2 = INV_MPU6050_TEMP_SCALE; + if (st->chip_type == INV_ICM20602) + *val2 = INV_ICM20602_TEMP_SCALE; + else + *val2 = INV_MPU6050_TEMP_SCALE; return IIO_VAL_INT_PLUS_MICRO; default: @@ -480,7 +475,10 @@ inv_mpu6050_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_OFFSET: switch (chan->type) { case IIO_TEMP: - *val = INV_MPU6050_TEMP_OFFSET; + if (st->chip_type == INV_ICM20602) + *val = INV_ICM20602_TEMP_OFFSET; + else + *val = INV_MPU6050_TEMP_OFFSET; return IIO_VAL_INT; default: @@ -847,6 +845,32 @@ static const struct iio_chan_spec inv_mpu_channels[] = { INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_MPU6050_SCAN_ACCL_Z), }; +static const struct iio_chan_spec inv_icm20602_channels[] = { + IIO_CHAN_SOFT_TIMESTAMP(INV_ICM20602_SCAN_TIMESTAMP), + { + .type = IIO_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) + | BIT(IIO_CHAN_INFO_OFFSET) + | BIT(IIO_CHAN_INFO_SCALE), + .scan_index = INV_ICM20602_SCAN_TEMP, + .scan_type = { + .sign = 's', + .realbits = 16, + .storagebits = 16, + .shift = 0, + .endianness = IIO_BE, + }, + }, + + INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_ICM20602_SCAN_GYRO_X), + INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_ICM20602_SCAN_GYRO_Y), + INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_ICM20602_SCAN_GYRO_Z), + + INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Y, INV_ICM20602_SCAN_ACCL_Y), + INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_X, INV_ICM20602_SCAN_ACCL_X), + INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_ICM20602_SCAN_ACCL_Z), +}; + /* * The user can choose any frequency between INV_MPU6050_MIN_FIFO_RATE and * INV_MPU6050_MAX_FIFO_RATE, but only these frequencies are matched by the @@ -1102,8 +1126,14 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name, indio_dev->name = name; else indio_dev->name = dev_name(dev); - indio_dev->channels = inv_mpu_channels; - indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels); + + if (chip_type == INV_ICM20602) { + indio_dev->channels = inv_icm20602_channels; + indio_dev->num_channels = ARRAY_SIZE(inv_icm20602_channels); + } else { + indio_dev->channels = inv_mpu_channels; + indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels); + } indio_dev->info = &mpu_info; indio_dev->modes = INDIO_BUFFER_TRIGGERED; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c index e46eb4ddea21..4b8b5a87398c 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Invensense, Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. */ #include <linux/acpi.h> diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index 325afd9f5f61..db1c6904388b 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Invensense, Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. */ #include <linux/i2c.h> #include <linux/i2c-mux.h> @@ -208,6 +200,9 @@ struct inv_mpu6050_state { #define INV_MPU6050_BYTES_PER_3AXIS_SENSOR 6 #define INV_MPU6050_FIFO_COUNT_BYTE 2 +/* ICM20602 FIFO samples include temperature readings */ +#define INV_ICM20602_BYTES_PER_TEMP_SENSOR 2 + /* mpu6500 registers */ #define INV_MPU6500_REG_ACCEL_CONFIG_2 0x1D #define INV_MPU6500_REG_ACCEL_OFFSET 0x77 @@ -229,6 +224,9 @@ struct inv_mpu6050_state { #define INV_MPU6050_GYRO_CONFIG_FSR_SHIFT 3 #define INV_MPU6050_ACCL_CONFIG_FSR_SHIFT 3 +#define INV_ICM20602_TEMP_OFFSET 8170 +#define INV_ICM20602_TEMP_SCALE 3060 + /* 6 + 6 round up and plus 8 */ #define INV_MPU6050_OUTPUT_DATA_SIZE 24 @@ -270,7 +268,7 @@ struct inv_mpu6050_state { #define INV_ICM20608_WHOAMI_VALUE 0xAF #define INV_ICM20602_WHOAMI_VALUE 0x12 -/* scan element definition */ +/* scan element definition for generic MPU6xxx devices */ enum inv_mpu6050_scan { INV_MPU6050_SCAN_ACCL_X, INV_MPU6050_SCAN_ACCL_Y, @@ -281,6 +279,18 @@ enum inv_mpu6050_scan { INV_MPU6050_SCAN_TIMESTAMP, }; +/* scan element definition for ICM20602, which includes temperature */ +enum inv_icm20602_scan { + INV_ICM20602_SCAN_ACCL_X, + INV_ICM20602_SCAN_ACCL_Y, + INV_ICM20602_SCAN_ACCL_Z, + INV_ICM20602_SCAN_TEMP, + INV_ICM20602_SCAN_GYRO_X, + INV_ICM20602_SCAN_GYRO_Y, + INV_ICM20602_SCAN_GYRO_Z, + INV_ICM20602_SCAN_TIMESTAMP, +}; + enum inv_mpu6050_filter_e { INV_MPU6050_FILTER_256HZ_NOLPF2 = 0, INV_MPU6050_FILTER_188HZ, diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c index 548e042f7b5b..5f9a5de0bab4 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Invensense, Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. */ #include <linux/module.h> @@ -207,6 +199,9 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) if (st->chip_config.gyro_fifo_enable) bytes_per_datum += INV_MPU6050_BYTES_PER_3AXIS_SENSOR; + if (st->chip_type == INV_ICM20602) + bytes_per_datum += INV_ICM20602_BYTES_PER_TEMP_SENSOR; + /* * read fifo_count register to know how many bytes are inside the FIFO * right now diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c index a112c3f45f74..142692fc0758 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2015 Intel Corporation Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. */ #include <linux/module.h> #include <linux/acpi.h> diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c index 6c3e1652a687..dd55e70b6f77 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Invensense, Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. */ #include "inv_mpu_iio.h" diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c index 44b3f5397343..e67466100aff 100644 --- a/drivers/iio/imu/kmx61.c +++ b/drivers/iio/imu/kmx61.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * KMX61 - Kionix 6-axis Accelerometer/Magnetometer * * Copyright (c) 2014, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for KMX61 (7-bit I2C slave address 0x0E or 0x0F). - * */ #include <linux/module.h> diff --git a/drivers/iio/imu/st_lsm6dsx/Kconfig b/drivers/iio/imu/st_lsm6dsx/Kconfig index 9e592973a8a6..002a423eae52 100644 --- a/drivers/iio/imu/st_lsm6dsx/Kconfig +++ b/drivers/iio/imu/st_lsm6dsx/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config IIO_ST_LSM6DSX tristate "ST_LSM6DSx driver for STM 6-axis IMU MEMS sensors" diff --git a/drivers/iio/imu/st_lsm6dsx/Makefile b/drivers/iio/imu/st_lsm6dsx/Makefile index e5f733ce6e11..28cc67399d94 100644 --- a/drivers/iio/imu/st_lsm6dsx/Makefile +++ b/drivers/iio/imu/st_lsm6dsx/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only st_lsm6dsx-y := st_lsm6dsx_core.o st_lsm6dsx_buffer.o \ st_lsm6dsx_shub.o diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h index 004a8a1a0027..c14bf533b66b 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics st_lsm6dsx sensor driver * @@ -5,8 +6,6 @@ * * Lorenzo Bianconi <lorenzo.bianconi@st.com> * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #ifndef ST_LSM6DSX_H @@ -198,7 +197,7 @@ struct st_lsm6dsx_ext_dev_settings { * struct st_lsm6dsx_settings - ST IMU sensor settings * @wai: Sensor WhoAmI default value. * @max_fifo_size: Sensor max fifo length in FIFO words. - * @id: List of hw id supported by the driver configuration. + * @id: List of hw id/device name supported by the driver configuration. * @decimator: List of decimator register info (addr + mask). * @batch: List of FIFO batching register info (addr + mask). * @fifo_ops: Sensor hw FIFO parameters. @@ -208,7 +207,10 @@ struct st_lsm6dsx_ext_dev_settings { struct st_lsm6dsx_settings { u8 wai; u16 max_fifo_size; - enum st_lsm6dsx_hw_id id[ST_LSM6DSX_MAX_ID]; + struct { + enum st_lsm6dsx_hw_id hw_id; + const char *name; + } id[ST_LSM6DSX_MAX_ID]; struct st_lsm6dsx_reg decimator[ST_LSM6DSX_MAX_ID]; struct st_lsm6dsx_reg batch[ST_LSM6DSX_MAX_ID]; struct st_lsm6dsx_fifo_ops fifo_ops; @@ -271,6 +273,7 @@ struct st_lsm6dsx_sensor { * @conf_lock: Mutex to prevent concurrent FIFO configuration update. * @page_lock: Mutex to prevent concurrent memory page configuration. * @fifo_mode: FIFO operating mode supported by the device. + * @suspend_mask: Suspended sensor bitmask. * @enable_mask: Enabled sensor bitmask. * @ts_sip: Total number of timestamp samples in a given pattern. * @sip: Total number of samples (acc/gyro/ts) in a given pattern. @@ -288,6 +291,7 @@ struct st_lsm6dsx_hw { struct mutex page_lock; enum st_lsm6dsx_fifo_mode fifo_mode; + u8 suspend_mask; u8 enable_mask; u8 ts_sip; u8 sip; @@ -302,7 +306,7 @@ struct st_lsm6dsx_hw { static const unsigned long st_lsm6dsx_available_scan_masks[] = {0x7, 0x0}; extern const struct dev_pm_ops st_lsm6dsx_pm_ops; -int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name, +int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, struct regmap *regmap); int st_lsm6dsx_sensor_set_enable(struct st_lsm6dsx_sensor *sensor, bool enable); diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c index 793598ee960a..e4d8a79d557d 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics st_lsm6dsx FIFO buffer library driver * @@ -26,8 +27,6 @@ * * Lorenzo Bianconi <lorenzo.bianconi@st.com> * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/module.h> #include <linux/interrupt.h> diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index cf82c9049945..a6702a74570e 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics st_lsm6dsx sensor driver * @@ -33,8 +34,6 @@ * * Lorenzo Bianconi <lorenzo.bianconi@st.com> * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> @@ -125,7 +124,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .wai = 0x69, .max_fifo_size = 1365, .id = { - [0] = ST_LSM6DS3_ID, + { + .hw_id = ST_LSM6DS3_ID, + .name = ST_LSM6DS3_DEV_NAME, + }, }, .decimator = { [ST_LSM6DSX_ID_ACC] = { @@ -172,7 +174,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .wai = 0x69, .max_fifo_size = 682, .id = { - [0] = ST_LSM6DS3H_ID, + { + .hw_id = ST_LSM6DS3H_ID, + .name = ST_LSM6DS3H_DEV_NAME, + }, }, .decimator = { [ST_LSM6DSX_ID_ACC] = { @@ -219,9 +224,16 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .wai = 0x6a, .max_fifo_size = 682, .id = { - [0] = ST_LSM6DSL_ID, - [1] = ST_LSM6DSM_ID, - [2] = ST_ISM330DLC_ID, + { + .hw_id = ST_LSM6DSL_ID, + .name = ST_LSM6DSL_DEV_NAME, + }, { + .hw_id = ST_LSM6DSM_ID, + .name = ST_LSM6DSM_DEV_NAME, + }, { + .hw_id = ST_ISM330DLC_ID, + .name = ST_ISM330DLC_DEV_NAME, + }, }, .decimator = { [ST_LSM6DSX_ID_ACC] = { @@ -268,8 +280,13 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .wai = 0x6c, .max_fifo_size = 512, .id = { - [0] = ST_LSM6DSO_ID, - [1] = ST_LSM6DSOX_ID, + { + .hw_id = ST_LSM6DSO_ID, + .name = ST_LSM6DSO_DEV_NAME, + }, { + .hw_id = ST_LSM6DSOX_ID, + .name = ST_LSM6DSOX_DEV_NAME, + }, }, .batch = { [ST_LSM6DSX_ID_ACC] = { @@ -334,7 +351,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .wai = 0x6b, .max_fifo_size = 512, .id = { - [0] = ST_ASM330LHH_ID, + { + .hw_id = ST_ASM330LHH_ID, + .name = ST_ASM330LHH_DEV_NAME, + }, }, .batch = { [ST_LSM6DSX_ID_ACC] = { @@ -373,7 +393,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .wai = 0x6b, .max_fifo_size = 512, .id = { - [0] = ST_LSM6DSR_ID, + { + .hw_id = ST_LSM6DSR_ID, + .name = ST_LSM6DSR_DEV_NAME, + }, }, .batch = { [ST_LSM6DSX_ID_ACC] = { @@ -471,13 +494,14 @@ int st_lsm6dsx_set_page(struct st_lsm6dsx_hw *hw, bool enable) return err; } -static int st_lsm6dsx_check_whoami(struct st_lsm6dsx_hw *hw, int id) +static int st_lsm6dsx_check_whoami(struct st_lsm6dsx_hw *hw, int id, + const char **name) { int err, i, j, data; for (i = 0; i < ARRAY_SIZE(st_lsm6dsx_sensor_settings); i++) { for (j = 0; j < ST_LSM6DSX_MAX_ID; j++) { - if (id == st_lsm6dsx_sensor_settings[i].id[j]) + if (id == st_lsm6dsx_sensor_settings[i].id[j].hw_id) break; } if (j < ST_LSM6DSX_MAX_ID) @@ -500,6 +524,7 @@ static int st_lsm6dsx_check_whoami(struct st_lsm6dsx_hw *hw, int id) return -ENODEV; } + *name = st_lsm6dsx_sensor_settings[i].id[j].name; hw->settings = &st_lsm6dsx_sensor_settings[i]; return 0; @@ -1041,11 +1066,12 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw, return iio_dev; } -int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name, +int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, struct regmap *regmap) { const struct st_lsm6dsx_shub_settings *hub_settings; struct st_lsm6dsx_hw *hw; + const char *name = NULL; int i, err; hw = devm_kzalloc(dev, sizeof(*hw), GFP_KERNEL); @@ -1066,7 +1092,7 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name, hw->irq = irq; hw->regmap = regmap; - err = st_lsm6dsx_check_whoami(hw, hw_id); + err = st_lsm6dsx_check_whoami(hw, hw_id, &name); if (err < 0) return err; @@ -1110,8 +1136,6 @@ static int __maybe_unused st_lsm6dsx_suspend(struct device *dev) { struct st_lsm6dsx_hw *hw = dev_get_drvdata(dev); struct st_lsm6dsx_sensor *sensor; - const struct st_lsm6dsx_reg *reg; - unsigned int data; int i, err = 0; for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) { @@ -1122,12 +1146,16 @@ static int __maybe_unused st_lsm6dsx_suspend(struct device *dev) if (!(hw->enable_mask & BIT(sensor->id))) continue; - reg = &st_lsm6dsx_odr_table[sensor->id].reg; - data = ST_LSM6DSX_SHIFT_VAL(0, reg->mask); - err = st_lsm6dsx_update_bits_locked(hw, reg->addr, reg->mask, - data); + if (sensor->id == ST_LSM6DSX_ID_EXT0 || + sensor->id == ST_LSM6DSX_ID_EXT1 || + sensor->id == ST_LSM6DSX_ID_EXT2) + err = st_lsm6dsx_shub_set_enable(sensor, false); + else + err = st_lsm6dsx_sensor_set_enable(sensor, false); if (err < 0) return err; + + hw->suspend_mask |= BIT(sensor->id); } if (hw->fifo_mode != ST_LSM6DSX_FIFO_BYPASS) @@ -1147,12 +1175,19 @@ static int __maybe_unused st_lsm6dsx_resume(struct device *dev) continue; sensor = iio_priv(hw->iio_devs[i]); - if (!(hw->enable_mask & BIT(sensor->id))) + if (!(hw->suspend_mask & BIT(sensor->id))) continue; - err = st_lsm6dsx_set_odr(sensor, sensor->odr); + if (sensor->id == ST_LSM6DSX_ID_EXT0 || + sensor->id == ST_LSM6DSX_ID_EXT1 || + sensor->id == ST_LSM6DSX_ID_EXT2) + err = st_lsm6dsx_shub_set_enable(sensor, true); + else + err = st_lsm6dsx_sensor_set_enable(sensor, true); if (err < 0) return err; + + hw->suspend_mask &= ~BIT(sensor->id); } if (hw->enable_mask) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c index f54370196098..b3211e0ac07b 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics st_lsm6dsx i2c driver * @@ -5,8 +6,6 @@ * * Lorenzo Bianconi <lorenzo.bianconi@st.com> * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> @@ -36,8 +35,7 @@ static int st_lsm6dsx_i2c_probe(struct i2c_client *client, return PTR_ERR(regmap); } - return st_lsm6dsx_probe(&client->dev, client->irq, - hw_id, id->name, regmap); + return st_lsm6dsx_probe(&client->dev, client->irq, hw_id, regmap); } static const struct of_device_id st_lsm6dsx_i2c_of_match[] = { diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c index 4a4abb2935da..c9d3c4711018 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics st_lsm6dsx spi driver * @@ -5,8 +6,6 @@ * * Lorenzo Bianconi <lorenzo.bianconi@st.com> * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> @@ -36,8 +35,7 @@ static int st_lsm6dsx_spi_probe(struct spi_device *spi) return PTR_ERR(regmap); } - return st_lsm6dsx_probe(&spi->dev, spi->irq, - hw_id, id->name, regmap); + return st_lsm6dsx_probe(&spi->dev, spi->irq, hw_id, regmap); } static const struct of_device_id st_lsm6dsx_spi_of_match[] = { diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 4fa273002c03..c193d64e5217 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* The industrial I/O core * * Copyright (c) 2008 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Handling of buffer allocation / resizing. * - * * Things to look at here. * - Better memory allocation techniques? * - Alternative access techniques? diff --git a/drivers/iio/industrialio-configfs.c b/drivers/iio/industrialio-configfs.c index 5a0aae119369..47900de1f105 100644 --- a/drivers/iio/industrialio-configfs.c +++ b/drivers/iio/industrialio-configfs.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Industrial I/O configfs bits * * Copyright (c) 2015 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/configfs.h> diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index f5a4581302f4..524a686077ca 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* The industrial I/O core * * Copyright (c) 2008 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Based on elements of hwmon and input subsystems. */ @@ -231,9 +228,9 @@ s64 iio_get_time_ns(const struct iio_dev *indio_dev) ktime_get_coarse_ts64(&tp); return timespec64_to_ns(&tp); case CLOCK_BOOTTIME: - return ktime_get_boot_ns(); + return ktime_get_boottime_ns(); case CLOCK_TAI: - return ktime_get_tai_ns(); + return ktime_get_clocktai_ns(); default: BUG(); } @@ -369,39 +366,25 @@ static void iio_device_unregister_debugfs(struct iio_dev *indio_dev) debugfs_remove_recursive(indio_dev->debugfs_dentry); } -static int iio_device_register_debugfs(struct iio_dev *indio_dev) +static void iio_device_register_debugfs(struct iio_dev *indio_dev) { - struct dentry *d; - if (indio_dev->info->debugfs_reg_access == NULL) - return 0; + return; if (!iio_debugfs_dentry) - return 0; + return; indio_dev->debugfs_dentry = debugfs_create_dir(dev_name(&indio_dev->dev), iio_debugfs_dentry); - if (indio_dev->debugfs_dentry == NULL) { - dev_warn(indio_dev->dev.parent, - "Failed to create debugfs directory\n"); - return -EFAULT; - } - - d = debugfs_create_file("direct_reg_access", 0644, - indio_dev->debugfs_dentry, - indio_dev, &iio_debugfs_reg_fops); - if (!d) { - iio_device_unregister_debugfs(indio_dev); - return -ENOMEM; - } - return 0; + debugfs_create_file("direct_reg_access", 0644, + indio_dev->debugfs_dentry, indio_dev, + &iio_debugfs_reg_fops); } #else -static int iio_device_register_debugfs(struct iio_dev *indio_dev) +static void iio_device_register_debugfs(struct iio_dev *indio_dev) { - return 0; } static void iio_device_unregister_debugfs(struct iio_dev *indio_dev) @@ -1107,6 +1090,8 @@ static int iio_device_add_info_mask_type_avail(struct iio_dev *indio_dev, char *avail_postfix; for_each_set_bit(i, infomask, sizeof(*infomask) * 8) { + if (i >= ARRAY_SIZE(iio_chan_info_postfix)) + return -EINVAL; avail_postfix = kasprintf(GFP_KERNEL, "%s_available", iio_chan_info_postfix[i]); @@ -1672,12 +1657,7 @@ int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod) /* configure elements for the chrdev */ indio_dev->dev.devt = MKDEV(MAJOR(iio_devt), indio_dev->id); - ret = iio_device_register_debugfs(indio_dev); - if (ret) { - dev_err(indio_dev->dev.parent, - "Failed to register debugfs interfaces\n"); - return ret; - } + iio_device_register_debugfs(indio_dev); ret = iio_buffer_alloc_sysfs_and_mask(indio_dev); if (ret) { diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c index c6dfdf0aaac5..5b17c92d3b50 100644 --- a/drivers/iio/industrialio-event.c +++ b/drivers/iio/industrialio-event.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* Industrial I/O event handling * * Copyright (c) 2008 Jonathan Cameron * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * * Based on elements of hwmon and input subsystems. */ diff --git a/drivers/iio/industrialio-sw-device.c b/drivers/iio/industrialio-sw-device.c index 90df97c542f6..49f775f16ad5 100644 --- a/drivers/iio/industrialio-sw-device.c +++ b/drivers/iio/industrialio-sw-device.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * The Industrial I/O core, software IIO devices functions * * Copyright (c) 2016 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/industrialio-sw-trigger.c b/drivers/iio/industrialio-sw-trigger.c index bc6b7fb43e3a..9ae793a70b8b 100644 --- a/drivers/iio/industrialio-sw-trigger.c +++ b/drivers/iio/industrialio-sw-trigger.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * The Industrial I/O core, software trigger functions * * Copyright (c) 2015 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c index e5b538379ed1..3908a9a90035 100644 --- a/drivers/iio/industrialio-trigger.c +++ b/drivers/iio/industrialio-trigger.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* The industrial I/O core, trigger handling functions * * Copyright (c) 2008 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/iio/industrialio-triggered-event.c b/drivers/iio/industrialio-triggered-event.c index 8cc254fac16a..53da9ab17a62 100644 --- a/drivers/iio/industrialio-triggered-event.c +++ b/drivers/iio/industrialio-triggered-event.c @@ -1,10 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2015 Cogent Embedded, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #include <linux/kernel.h> diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 4a5eff3f18bc..2fb2314548e9 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* The industrial I/O core in kernel channel mapping * * Copyright (c) 2011 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/err.h> #include <linux/export.h> diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index 954c958cfc43..e3fd00b595d0 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Light sensors diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c index c35e2f8df339..1eafd0b24e18 100644 --- a/drivers/iio/light/acpi-als.c +++ b/drivers/iio/light/acpi-als.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ACPI Ambient Light Sensor Driver * @@ -10,20 +11,6 @@ * Final cleanup and debugging: * Copyright (C) 2013-2014 Marek Vasut <marex@denx.de> * Copyright (C) 2015 Gabriele Mazzotta <gabriele.mzt@gmail.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/module.h> diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c index e45bb6a277c2..d3269cd44fb5 100644 --- a/drivers/iio/light/adjd_s311.c +++ b/drivers/iio/light/adjd_s311.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * adjd_s311.c - Support for ADJD-S311-CR999 digital color sensor * * Copyright (C) 2012 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * driver for ADJD-S311-CR999 digital color sensor (10-bit channels for * red, green, blue, clear); 7-bit I2C slave address 0x74 * diff --git a/drivers/iio/light/al3320a.c b/drivers/iio/light/al3320a.c index 66623facea9a..a21aa99e74e4 100644 --- a/drivers/iio/light/al3320a.c +++ b/drivers/iio/light/al3320a.c @@ -1,16 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AL3320A - Dyna Image Ambient Light Sensor * * Copyright (c) 2014, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for AL3320A (7-bit I2C slave address 0x1C). * * TODO: interrupt support, thresholds - * */ #include <linux/module.h> diff --git a/drivers/iio/light/apds9300.c b/drivers/iio/light/apds9300.c index 5c15736fb93e..856b6c468dea 100644 --- a/drivers/iio/light/apds9300.c +++ b/drivers/iio/light/apds9300.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * apds9300.c - IIO driver for Avago APDS9300 ambient light sensor * * Copyright 2013 Oleksandr Kravchenko <o.v.kravchenko@globallogic.com> - * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. */ #include <linux/module.h> diff --git a/drivers/iio/light/bh1780.c b/drivers/iio/light/bh1780.c index 036f3bbe323c..a8361006dcd9 100644 --- a/drivers/iio/light/bh1780.c +++ b/drivers/iio/light/bh1780.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ROHM 1780GLI Ambient Light Sensor Driver * @@ -145,7 +146,7 @@ static int bh1780_probe(struct i2c_client *client, { int ret; struct bh1780_data *bh1780; - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct i2c_adapter *adapter = client->adapter; struct iio_dev *indio_dev; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c index aebf7dd071af..5f4fb5674fa0 100644 --- a/drivers/iio/light/cm32181.c +++ b/drivers/iio/light/cm32181.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013 Capella Microsystems Inc. * Author: Kevin Tsai <ktsai@capellamicro.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2, as published - * by the Free Software Foundation. */ #include <linux/delay.h> diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c index c639cf276ee6..cd3cfb7d02bd 100644 --- a/drivers/iio/light/cm3232.c +++ b/drivers/iio/light/cm3232.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * CM3232 Ambient Light Sensor * * Copyright (C) 2014-2015 Capella Microsystems Inc. * Author: Kevin Tsai <ktsai@capellamicro.com> * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2, as published - * by the Free Software Foundation. - * * IIO driver for CM3232 (7-bit I2C slave address 0x10). */ diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c index 83b08b6dc60f..50f3438c2b49 100644 --- a/drivers/iio/light/cm3323.c +++ b/drivers/iio/light/cm3323.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * CM3323 - Capella Color Light Sensor * * Copyright (c) 2015, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for CM3323 (7-bit I2C slave address 0x10) * * TODO: calibscale to correct the lens factor diff --git a/drivers/iio/light/cm3605.c b/drivers/iio/light/cm3605.c index e454bc6a33c6..964ede49f662 100644 --- a/drivers/iio/light/cm3605.c +++ b/drivers/iio/light/cm3605.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * CM3605 Ambient Light and Proximity Sensor * diff --git a/drivers/iio/light/cm36651.c b/drivers/iio/light/cm36651.c index 1dd8ed0121b3..7702c2bcbcfa 100644 --- a/drivers/iio/light/cm36651.c +++ b/drivers/iio/light/cm36651.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013 Samsung Electronics Co., Ltd. * Author: Beomho Seo <beomho.seo@samsung.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2, as published - * by the Free Software Foundation. */ #include <linux/delay.h> diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c index 44b13fbcd093..4d70c5bf35da 100644 --- a/drivers/iio/light/gp2ap020a00f.c +++ b/drivers/iio/light/gp2ap020a00f.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013 Samsung Electronics Co., Ltd. * Author: Jacek Anaszewski <j.anaszewski@samsung.com> @@ -28,10 +29,6 @@ * with any triggers or illuminance events. Enabling/disabling * one of the proximity events automatically enables/disables * the other one. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2, as - * published by the Free Software Foundation. */ #include <linux/debugfs.h> diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index 94f33250ba5a..b6cd299517d1 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -1,20 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c index cf5a0c242609..7e1030af9ba3 100644 --- a/drivers/iio/light/hid-sensor-prox.c +++ b/drivers/iio/light/hid-sensor-prox.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c index 846df4dce48c..805a74f08ad1 100644 --- a/drivers/iio/light/isl29018.c +++ b/drivers/iio/light/isl29018.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * A iio driver for the light sensor ISL 29018/29023/29035. * @@ -5,16 +6,6 @@ * sensing and infrared sensing. * * Copyright (c) 2010, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/light/isl29028.c b/drivers/iio/light/isl29028.c index f9912ab4f65c..4d220c835c75 100644 --- a/drivers/iio/light/isl29028.c +++ b/drivers/iio/light/isl29028.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * IIO driver for the light sensor ISL29028. * ISL29028 is Concurrent Ambient Light and Proximity Sensor @@ -5,18 +6,6 @@ * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. * Copyright (c) 2016-2017 Brian Masney <masneyb@onstation.org> * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * * Datasheets: * - http://www.intersil.com/content/dam/Intersil/documents/isl2/isl29028.pdf * - http://www.intersil.com/content/dam/Intersil/documents/isl2/isl29030.pdf diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c index ed38edcd5efe..e37894f0ae0b 100644 --- a/drivers/iio/light/isl29125.c +++ b/drivers/iio/light/isl29125.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * isl29125.c - Support for Intersil ISL29125 RGB light sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * RGB light sensor with 16-bit channels for red, green, blue); * 7-bit I2C slave address 0x44 * diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c index 811505d925b3..13deeebe37eb 100644 --- a/drivers/iio/light/jsa1212.c +++ b/drivers/iio/light/jsa1212.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * JSA1212 Ambient Light & Proximity Sensor Driver * * Copyright (c) 2014, Intel Corporation. * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * * JSA1212 I2C slave address: 0x44(ADDR tied to GND), 0x45(ADDR tied to VDD) * * TODO: Interrupt support, thresholds, range support. diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c index ff5a3324b489..6733b52c22df 100644 --- a/drivers/iio/light/lm3533-als.c +++ b/drivers/iio/light/lm3533-als.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * lm3533-als.c -- LM3533 Ambient Light Sensor driver * * Copyright (C) 2011-2012 Texas Instruments * * Author: Johan Hovold <jhovold@gmail.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #include <linux/atomic.h> diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c index 830a2d45aa4d..71f99d2a22c1 100644 --- a/drivers/iio/light/ltr501.c +++ b/drivers/iio/light/ltr501.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ltr501.c - Support for Lite-On LTR501 ambient light and proximity sensor * * Copyright 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * 7-bit I2C slave address 0x23 * * TODO: IR LED characteristics diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c index d3fb460cfbdc..d6d8007ba430 100644 --- a/drivers/iio/light/max44000.c +++ b/drivers/iio/light/max44000.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * MAX44000 Ambient and Infrared Proximity Sensor * * Copyright (c) 2016, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Data sheet: https://datasheets.maximintegrated.com/en/ds/MAX44000.pdf * * 7-bit I2C slave address 0x4a diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c index 54d88b60e303..e666879007d2 100644 --- a/drivers/iio/light/opt3001.c +++ b/drivers/iio/light/opt3001.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * opt3001.c - Texas Instruments OPT3001 Light Sensor * @@ -5,15 +6,6 @@ * * Author: Andreas Dannenberg <dannenberg@ti.com> * Based on previous work from: Felipe Balbi <balbi@ti.com> - * - * This program is free software: you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 of the License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/bitops.h> diff --git a/drivers/iio/light/pa12203001.c b/drivers/iio/light/pa12203001.c index 30ea1a088dd9..0295783f036a 100644 --- a/drivers/iio/light/pa12203001.c +++ b/drivers/iio/light/pa12203001.c @@ -1,11 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2015 Intel Corporation * * Driver for TXC PA12203001 Proximity and Ambient Light Sensor. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. * To do: Interrupt support. */ diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c index ffe9ce798ea2..a0a7aeae5a82 100644 --- a/drivers/iio/light/rpr0521.c +++ b/drivers/iio/light/rpr0521.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * RPR-0521 ROHM Ambient Light and Proximity Sensor * * Copyright (c) 2015, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for RPR-0521RS (7-bit I2C slave address 0x38). * * TODO: illuminance channel diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c index 76f16f9c7616..6579d2418814 100644 --- a/drivers/iio/light/si1145.c +++ b/drivers/iio/light/si1145.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * si1145.c - Support for Silabs SI1132 and SI1141/2/3/5/6/7 combined ambient * light, UV index and proximity sensors @@ -5,10 +6,6 @@ * Copyright 2014-16 Peter Meerwald-Stadler <pmeerw@pmeerw.net> * Copyright 2016 Crestez Dan Leonard <leonard.crestez@intel.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * SI1132 (7-bit I2C slave address 0x60) * SI1141/2/3 (7-bit I2C slave address 0x5a) * SI1145/6/6 (7-bit I2C slave address 0x60) diff --git a/drivers/iio/light/st_uvis25.h b/drivers/iio/light/st_uvis25.h index 5e970ab480cd..78bc56aad129 100644 --- a/drivers/iio/light/st_uvis25.h +++ b/drivers/iio/light/st_uvis25.h @@ -1,11 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics uvis25 sensor driver * * Copyright 2017 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> - * - * Licensed under the GPL-2. */ #ifndef ST_UVIS25_H diff --git a/drivers/iio/light/st_uvis25_core.c b/drivers/iio/light/st_uvis25_core.c index 302635836e6b..d262c254b895 100644 --- a/drivers/iio/light/st_uvis25_core.c +++ b/drivers/iio/light/st_uvis25_core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics uvis25 sensor driver * * Copyright 2017 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/light/st_uvis25_i2c.c b/drivers/iio/light/st_uvis25_i2c.c index afd6eb01a202..dacbac6a6662 100644 --- a/drivers/iio/light/st_uvis25_i2c.c +++ b/drivers/iio/light/st_uvis25_i2c.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics uvis25 i2c driver * * Copyright 2017 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/light/st_uvis25_spi.c b/drivers/iio/light/st_uvis25_spi.c index cdfee5e84d5e..a9ceae4f58b3 100644 --- a/drivers/iio/light/st_uvis25_spi.c +++ b/drivers/iio/light/st_uvis25_spi.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics uvis25 spi driver * * Copyright 2017 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c index 6e2a169da950..b955183edfe8 100644 --- a/drivers/iio/light/stk3310.c +++ b/drivers/iio/light/stk3310.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Sensortek STK3310/STK3311 Ambient Light and Proximity Sensor * * Copyright (c) 2015, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for STK3310/STK3311. 7-bit I2C address: 0x48. */ @@ -40,6 +37,7 @@ #define STK3310_CHIP_ID_VAL 0x13 #define STK3311_CHIP_ID_VAL 0x1D +#define STK3335_CHIP_ID_VAL 0x51 #define STK3310_PSINT_EN 0x01 #define STK3310_PS_MAX_VAL 0xFFFF @@ -454,7 +452,8 @@ static int stk3310_init(struct iio_dev *indio_dev) return ret; if (chipid != STK3310_CHIP_ID_VAL && - chipid != STK3311_CHIP_ID_VAL) { + chipid != STK3311_CHIP_ID_VAL && + chipid != STK3335_CHIP_ID_VAL) { dev_err(&client->dev, "invalid chip id: 0x%x\n", chipid); return -ENODEV; } @@ -666,6 +665,7 @@ static SIMPLE_DEV_PM_OPS(stk3310_pm_ops, stk3310_suspend, stk3310_resume); static const struct i2c_device_id stk3310_i2c_id[] = { {"STK3310", 0}, {"STK3311", 0}, + {"STK3335", 0}, {} }; MODULE_DEVICE_TABLE(i2c, stk3310_i2c_id); @@ -673,6 +673,7 @@ MODULE_DEVICE_TABLE(i2c, stk3310_i2c_id); static const struct acpi_device_id stk3310_acpi_id[] = { {"STK3310", 0}, {"STK3311", 0}, + {"STK3335", 0}, {} }; diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c index 205e5659ce6b..7c0291c5fe76 100644 --- a/drivers/iio/light/tcs3414.c +++ b/drivers/iio/light/tcs3414.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tcs3414.c - Support for TAOS TCS3414 digital color sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Digital color sensor with 16-bit channels for red, green, blue, clear); * 7-bit I2C slave address 0x39 (TCS3414) or 0x29, 0x49, 0x59 (TCS3413, * TCS3415, TCS3416, resp.) diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c index e7923b514d7a..12ad34441010 100644 --- a/drivers/iio/light/tcs3472.c +++ b/drivers/iio/light/tcs3472.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tcs3472.c - Support for TAOS TCS3472 color light-to-digital converter * * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Color light sensor with 16-bit channels for red, green, blue, clear); * 7-bit I2C slave address 0x39 (TCS34721, TCS34723) or 0x29 (TCS34725, * TCS34727) diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c index 6bbb0b1e6032..d8c40a83097d 100644 --- a/drivers/iio/light/tsl2563.c +++ b/drivers/iio/light/tsl2563.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * drivers/iio/light/tsl2563.c * @@ -8,20 +9,6 @@ * * Converted to IIO driver * Amit Kucheria <amit.kucheria@verdurent.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #include <linux/module.h> diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c index 4b5d9988f025..a760d14e146a 100644 --- a/drivers/iio/light/tsl2583.c +++ b/drivers/iio/light/tsl2583.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Device driver for monitoring ambient light intensity (lux) * within the TAOS tsl258x family of devices (tsl2580, tsl2581, tsl2583). * * Copyright (c) 2011, TAOS Corporation. * Copyright (c) 2016-2017 Brian Masney <masneyb@onstation.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/kernel.h> diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c index 06171cb76e23..0dfc664205c7 100644 --- a/drivers/iio/light/tsl4531.c +++ b/drivers/iio/light/tsl4531.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tsl4531.c - Support for TAOS TSL4531 ambient light sensor * * Copyright 2013 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for the TSL4531x family * TSL45311/TSL45313: 7-bit I2C slave address 0x39 * TSL45315/TSL45317: 7-bit I2C slave address 0x29 diff --git a/drivers/iio/light/us5182d.c b/drivers/iio/light/us5182d.c index 68e52943879a..b995f21a3347 100644 --- a/drivers/iio/light/us5182d.c +++ b/drivers/iio/light/us5182d.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2015 Intel Corporation * * Driver for UPISEMI us5182d Proximity and Ambient Light Sensor. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * * To do: Interrupt support. */ diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index b19e6559b980..51421ac32517 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * vcnl4000.c - Support for Vishay VCNL4000/4010/4020/4040/4200 combined ambient * light and proximity sensor @@ -5,10 +6,6 @@ * Copyright 2012 Peter Meerwald <pmeerw@pmeerw.net> * Copyright 2019 Pursim SPC * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for: * VCNL4000/10/20 (7-bit I2C slave address 0x13) * VCNL4040 (7-bit I2C slave address 0x60) diff --git a/drivers/iio/light/veml6070.c b/drivers/iio/light/veml6070.c index f4bf3c5b5eda..a3138e1b5803 100644 --- a/drivers/iio/light/veml6070.c +++ b/drivers/iio/light/veml6070.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * veml6070.c - Support for Vishay VEML6070 UV A light sensor * * Copyright 2016 Peter Meerwald-Stadler <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for VEML6070 (7-bit I2C slave addresses 0x38 and 0x39) * * TODO: integration time, ACK signal diff --git a/drivers/iio/light/vl6180.c b/drivers/iio/light/vl6180.c index 192c77ef3608..d9533a76b8f6 100644 --- a/drivers/iio/light/vl6180.c +++ b/drivers/iio/light/vl6180.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * vl6180.c - Support for STMicroelectronics VL6180 ALS, range and proximity * sensor @@ -5,10 +6,6 @@ * Copyright 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net> * Copyright 2017 Manivannan Sadhasivam <manivannanece23@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for VL6180 (7-bit I2C slave address 0x29) * * Range: 0 to 100mm diff --git a/drivers/iio/light/zopt2201.c b/drivers/iio/light/zopt2201.c index 041ac9effdb0..5f54f39e7a4c 100644 --- a/drivers/iio/light/zopt2201.c +++ b/drivers/iio/light/zopt2201.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * zopt2201.c - Support for IDT ZOPT2201 ambient light and UV B sensor * * Copyright 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Datasheet: https://www.idt.com/document/dst/zopt2201-datasheet * 7-bit I2C slave addresses 0x53 (default) or 0x52 (programmed) * diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig index 8a63cbbca4b7..1697a8c03506 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Magnetometer sensors # diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c index f4d0a6c0fde7..fc7e910f8e8b 100644 --- a/drivers/iio/magnetometer/ak8974.c +++ b/drivers/iio/magnetometer/ak8974.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Driver for the Asahi Kasei EMD Corporation AK8974 * and Aichi Steel AMI305 magnetometer chips. diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 43d08c089792..893bec5a0312 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -1,23 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * A sensor driver for the magnetometer AK8975. * * Magnetic compass sensor driver for monitoring magnetic flux information. * * Copyright (c) 2010, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include <linux/module.h> diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c index b0d8b036d9bb..d4de16750b10 100644 --- a/drivers/iio/magnetometer/bmc150_magn.c +++ b/drivers/iio/magnetometer/bmc150_magn.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Bosch BMC150 three-axis magnetic field sensor driver * @@ -6,15 +7,6 @@ * This code is based on bmm050_api.c authored by contact@bosch.sensortec.com: * * (C) Copyright 2011~2014 Bosch Sensortec GmbH All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/magnetometer/bmc150_magn_i2c.c b/drivers/iio/magnetometer/bmc150_magn_i2c.c index 57e40dd1222e..fb45b63c56e4 100644 --- a/drivers/iio/magnetometer/bmc150_magn_i2c.c +++ b/drivers/iio/magnetometer/bmc150_magn_i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips: * - BMC150 @@ -5,15 +6,6 @@ * - BMM150 * * Copyright (c) 2016, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/device.h> #include <linux/mod_devicetable.h> diff --git a/drivers/iio/magnetometer/bmc150_magn_spi.c b/drivers/iio/magnetometer/bmc150_magn_spi.c index 7d4152d4d01e..ed9be0490d77 100644 --- a/drivers/iio/magnetometer/bmc150_magn_spi.c +++ b/drivers/iio/magnetometer/bmc150_magn_spi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * 3-axis magnetometer driver support following SPI Bosch-Sensortec chips: * - BMC150 @@ -5,10 +6,6 @@ * - BMM150 * * Copyright (c) 2016, Intel Corporation. - * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. */ #include <linux/module.h> #include <linux/mod_devicetable.h> diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c index f3c0d41e5a8c..25e60b233e08 100644 --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c @@ -1,20 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/magnetometer/hmc5843.h b/drivers/iio/magnetometer/hmc5843.h index e3e22d2508d3..b0dee87a8b20 100644 --- a/drivers/iio/magnetometer/hmc5843.h +++ b/drivers/iio/magnetometer/hmc5843.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Header file for hmc5843 driver * * Split from hmc5843.c * Copyright (C) Josef Gajdusek <atx@atx.name> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef HMC5843_CORE_H diff --git a/drivers/iio/magnetometer/hmc5843_core.c b/drivers/iio/magnetometer/hmc5843_core.c index 05629ec56d80..c44a4292da92 100644 --- a/drivers/iio/magnetometer/hmc5843_core.c +++ b/drivers/iio/magnetometer/hmc5843_core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Device driver for the the HMC5843 multi-chip module designed * for low field magnetic sensing. @@ -8,16 +9,6 @@ * Acknowledgment: Jonathan Cameron <jic23@kernel.org> for valuable inputs. * Support for HMC5883 and HMC5883L by Peter Meerwald <pmeerw@pmeerw.net>. * Split to multiple files by Josef Gajdusek <atx@atx.name> - 2014 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/iio/magnetometer/hmc5843_i2c.c b/drivers/iio/magnetometer/hmc5843_i2c.c index 86abba5827a2..67fe657fdb3e 100644 --- a/drivers/iio/magnetometer/hmc5843_i2c.c +++ b/drivers/iio/magnetometer/hmc5843_i2c.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * i2c driver for hmc5843/5843/5883/5883l/5983 * * Split from hmc5843.c * Copyright (C) Josef Gajdusek <atx@atx.name> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/magnetometer/hmc5843_spi.c b/drivers/iio/magnetometer/hmc5843_spi.c index 79b2b707f90e..d827554c346e 100644 --- a/drivers/iio/magnetometer/hmc5843_spi.c +++ b/drivers/iio/magnetometer/hmc5843_spi.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * SPI driver for hmc5983 * * Copyright (C) Josef Gajdusek <atx@atx.name> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c index dd990cdb04a8..fb16cfdd6fa6 100644 --- a/drivers/iio/magnetometer/mag3110.c +++ b/drivers/iio/magnetometer/mag3110.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * mag3110.c - Support for Freescale MAG3110 magnetometer sensor * * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * (7-bit I2C slave address 0x0e) * * TODO: irq, user offset, oversampling, continuous mode diff --git a/drivers/iio/magnetometer/mmc35240.c b/drivers/iio/magnetometer/mmc35240.c index 6b640c6338c9..7de10281ad9e 100644 --- a/drivers/iio/magnetometer/mmc35240.c +++ b/drivers/iio/magnetometer/mmc35240.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * MMC35240 - MEMSIC 3-axis Magnetic Sensor * * Copyright (c) 2015, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * IIO driver for MMC35240 (7-bit I2C slave address 0x30). * * TODO: offset, ACPI, continuous measurement mode, PM diff --git a/drivers/iio/magnetometer/st_magn.h b/drivers/iio/magnetometer/st_magn.h index bc14ad4f1b26..d69ef9b2a731 100644 --- a/drivers/iio/magnetometer/st_magn.h +++ b/drivers/iio/magnetometer/st_magn.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics magnetometers driver * @@ -5,7 +6,6 @@ * * Denis Ciocca <denis.ciocca@st.com> * v. 1.0.0 - * Licensed under the GPL-2. */ #ifndef ST_MAGN_H diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c index 37ab30566464..11d7806655bc 100644 --- a/drivers/iio/magnetometer/st_magn_buffer.c +++ b/drivers/iio/magnetometer/st_magn_buffer.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics magnetometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/module.h> diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c index 5d056bdb3b37..2f7a1dbcdeb3 100644 --- a/drivers/iio/magnetometer/st_magn_core.c +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics magnetometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c index 68650f5f5c19..4d014fd1aeb0 100644 --- a/drivers/iio/magnetometer/st_magn_i2c.c +++ b/drivers/iio/magnetometer/st_magn_i2c.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics magnetometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c index cb05fcd9ddfe..0d47070611b1 100644 --- a/drivers/iio/magnetometer/st_magn_spi.c +++ b/drivers/iio/magnetometer/st_magn_spi.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics magnetometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/multiplexer/Kconfig b/drivers/iio/multiplexer/Kconfig index 735a7b0e6fd8..a1e1332d1206 100644 --- a/drivers/iio/multiplexer/Kconfig +++ b/drivers/iio/multiplexer/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Multiplexer drivers # diff --git a/drivers/iio/multiplexer/Makefile b/drivers/iio/multiplexer/Makefile index 68be3c4abd07..f069ab781d95 100644 --- a/drivers/iio/multiplexer/Makefile +++ b/drivers/iio/multiplexer/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for industrial I/O multiplexer drivers # diff --git a/drivers/iio/orientation/Kconfig b/drivers/iio/orientation/Kconfig index e3aa1e58d920..a505583cc2fd 100644 --- a/drivers/iio/orientation/Kconfig +++ b/drivers/iio/orientation/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Inclinometer sensors # diff --git a/drivers/iio/orientation/Makefile b/drivers/iio/orientation/Makefile index 4734dabbde13..7800ed293a9a 100644 --- a/drivers/iio/orientation/Makefile +++ b/drivers/iio/orientation/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for industrial I/O Inclinometer sensor drivers # diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c index bdc5e4554ee4..00af68764cda 100644 --- a/drivers/iio/orientation/hid-sensor-incl-3d.c +++ b/drivers/iio/orientation/hid-sensor-incl-3d.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2013, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc. - * */ #include <linux/device.h> diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c index a69db2002414..64ae7d04a200 100644 --- a/drivers/iio/orientation/hid-sensor-rotation.c +++ b/drivers/iio/orientation/hid-sensor-rotation.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/device.h> diff --git a/drivers/iio/potentiometer/Kconfig b/drivers/iio/potentiometer/Kconfig index a81a3a1b4dc8..ebc7c72a5e36 100644 --- a/drivers/iio/potentiometer/Kconfig +++ b/drivers/iio/potentiometer/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Potentiometer drivers # diff --git a/drivers/iio/potentiometer/ds1803.c b/drivers/iio/potentiometer/ds1803.c index 6bf12c9eccbd..d0de78232a93 100644 --- a/drivers/iio/potentiometer/ds1803.c +++ b/drivers/iio/potentiometer/ds1803.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Maxim Integrated DS1803 digital potentiometer driver * Copyright (c) 2016 Slawomir Stepien @@ -6,10 +7,6 @@ * * DEVID #Wipers #Positions Resistor Opts (kOhm) i2c address * ds1803 2 256 10, 50, 100 0101xxx - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/err.h> diff --git a/drivers/iio/potentiometer/max5481.c b/drivers/iio/potentiometer/max5481.c index 6d2f13fa5662..732375b6d131 100644 --- a/drivers/iio/potentiometer/max5481.c +++ b/drivers/iio/potentiometer/max5481.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Maxim Integrated MAX5481-MAX5484 digital potentiometer driver * Copyright 2016 Rockwell Collins * * Datasheet: * http://datasheets.maximintegrated.com/en/ds/MAX5481-MAX5484.pdf - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the gnu general public license version 2 as - * published by the free software foundation. - * */ #include <linux/acpi.h> diff --git a/drivers/iio/potentiometer/max5487.c b/drivers/iio/potentiometer/max5487.c index 5042d3e09b12..68ff806d4668 100644 --- a/drivers/iio/potentiometer/max5487.c +++ b/drivers/iio/potentiometer/max5487.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * max5487.c - Support for MAX5487, MAX5488, MAX5489 digital potentiometers * * Copyright (C) 2016 Cristina-Gabriela Moraru <cristina.moraru09@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #include <linux/module.h> #include <linux/spi/spi.h> diff --git a/drivers/iio/potentiometer/mcp4131.c b/drivers/iio/potentiometer/mcp4131.c index efe035ce010d..98df91e97f2f 100644 --- a/drivers/iio/potentiometer/mcp4131.c +++ b/drivers/iio/potentiometer/mcp4131.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Industrial I/O driver for Microchip digital potentiometers * @@ -23,10 +24,6 @@ * mcp4252 2 257 5, 10, 50, 100 * mcp4261 2 257 5, 10, 50, 100 * mcp4262 2 257 5, 10, 50, 100 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ /* diff --git a/drivers/iio/potentiostat/Kconfig b/drivers/iio/potentiostat/Kconfig index 1e3baf2cc97d..72501bf1635f 100644 --- a/drivers/iio/potentiostat/Kconfig +++ b/drivers/iio/potentiostat/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Potentiostat drivers # diff --git a/drivers/iio/potentiostat/Makefile b/drivers/iio/potentiostat/Makefile index 64d315ef4449..be78b46acbab 100644 --- a/drivers/iio/potentiostat/Makefile +++ b/drivers/iio/potentiostat/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for industrial I/O potentiostat drivers # diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig index efeb89f3df71..ba420e484787 100644 --- a/drivers/iio/pressure/Kconfig +++ b/drivers/iio/pressure/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Pressure drivers # @@ -52,6 +53,17 @@ config IIO_CROS_EC_BARO To compile this driver as a module, choose M here: the module will be called cros_ec_baro. +config DPS310 + tristate "Infineon DPS310 pressure and temperature sensor" + depends on I2C + select REGMAP_I2C + help + Support for the Infineon DPS310 digital barometric pressure sensor. + It can be accessed over I2C bus. + + This driver can also be built as a module. If so, the module will be + called dps310. + config HID_SENSOR_PRESS depends on HID_SENSOR_HUB select IIO_BUFFER diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile index c2058d7b2f93..d8f5ace1f25d 100644 --- a/drivers/iio/pressure/Makefile +++ b/drivers/iio/pressure/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_BMP280) += bmp280.o bmp280-objs := bmp280-core.o bmp280-regmap.o obj-$(CONFIG_BMP280_I2C) += bmp280-i2c.o obj-$(CONFIG_BMP280_SPI) += bmp280-spi.o +obj-$(CONFIG_DPS310) += dps310.o obj-$(CONFIG_IIO_CROS_EC_BARO) += cros_ec_baro.o obj-$(CONFIG_HID_SENSOR_PRESS) += hid-sensor-press.o obj-$(CONFIG_HP03) += hp03.o diff --git a/drivers/iio/pressure/abp060mg.c b/drivers/iio/pressure/abp060mg.c index 46a220c70d6a..267aad8af0a6 100644 --- a/drivers/iio/pressure/abp060mg.c +++ b/drivers/iio/pressure/abp060mg.c @@ -1,15 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2016 - Marcin Malagowski <mrc@bourne.st> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/delay.h> #include <linux/device.h> diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c index 3329d740c86c..8d0f15f27dc5 100644 --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2010 Christoph Mair <christoph.mair@gmail.com> * Copyright (c) 2012 Bosch Sensortec GmbH @@ -7,10 +8,6 @@ * * Driver for Bosch Sensortec BMP180 and BMP280 digital pressure sensor. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Datasheet: * https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMP180-DS000-121.pdf * https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMP280-DS001-12.pdf diff --git a/drivers/iio/pressure/bmp280-i2c.c b/drivers/iio/pressure/bmp280-i2c.c index 03742b15b72a..acd9a3784fb4 100644 --- a/drivers/iio/pressure/bmp280-i2c.c +++ b/drivers/iio/pressure/bmp280-i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/module.h> #include <linux/i2c.h> #include <linux/acpi.h> diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c index 17bc95586f9e..9d57b7a3b134 100644 --- a/drivers/iio/pressure/bmp280-spi.c +++ b/drivers/iio/pressure/bmp280-spi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * SPI interface for the BMP280 driver * diff --git a/drivers/iio/pressure/dps310.c b/drivers/iio/pressure/dps310.c new file mode 100644 index 000000000000..2c1943bbc433 --- /dev/null +++ b/drivers/iio/pressure/dps310.c @@ -0,0 +1,827 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright IBM Corp 2019 +/* + * The DPS310 is a barometric pressure and temperature sensor. + * Currently only reading a single temperature is supported by + * this driver. + * + * https://www.infineon.com/dgdl/?fileId=5546d462576f34750157750826c42242 + * + * Temperature calculation: + * c0 * 0.5 + c1 * T_raw / kT °C + * + * TODO: + * - Optionally support the FIFO + */ + +#include <linux/i2c.h> +#include <linux/limits.h> +#include <linux/math64.h> +#include <linux/module.h> +#include <linux/regmap.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +#define DPS310_DEV_NAME "dps310" + +#define DPS310_PRS_B0 0x00 +#define DPS310_PRS_B1 0x01 +#define DPS310_PRS_B2 0x02 +#define DPS310_TMP_B0 0x03 +#define DPS310_TMP_B1 0x04 +#define DPS310_TMP_B2 0x05 +#define DPS310_PRS_CFG 0x06 +#define DPS310_PRS_RATE_BITS GENMASK(6, 4) +#define DPS310_PRS_PRC_BITS GENMASK(3, 0) +#define DPS310_TMP_CFG 0x07 +#define DPS310_TMP_RATE_BITS GENMASK(6, 4) +#define DPS310_TMP_PRC_BITS GENMASK(3, 0) +#define DPS310_TMP_EXT BIT(7) +#define DPS310_MEAS_CFG 0x08 +#define DPS310_MEAS_CTRL_BITS GENMASK(2, 0) +#define DPS310_PRS_EN BIT(0) +#define DPS310_TEMP_EN BIT(1) +#define DPS310_BACKGROUND BIT(2) +#define DPS310_PRS_RDY BIT(4) +#define DPS310_TMP_RDY BIT(5) +#define DPS310_SENSOR_RDY BIT(6) +#define DPS310_COEF_RDY BIT(7) +#define DPS310_CFG_REG 0x09 +#define DPS310_INT_HL BIT(7) +#define DPS310_TMP_SHIFT_EN BIT(3) +#define DPS310_PRS_SHIFT_EN BIT(4) +#define DPS310_FIFO_EN BIT(5) +#define DPS310_SPI_EN BIT(6) +#define DPS310_RESET 0x0c +#define DPS310_RESET_MAGIC 0x09 +#define DPS310_COEF_BASE 0x10 + +/* Make sure sleep time is <= 20ms for usleep_range */ +#define DPS310_POLL_SLEEP_US(t) min(20000, (t) / 8) +/* Silently handle error in rate value here */ +#define DPS310_POLL_TIMEOUT_US(rc) ((rc) <= 0 ? 1000000 : 1000000 / (rc)) + +#define DPS310_PRS_BASE DPS310_PRS_B0 +#define DPS310_TMP_BASE DPS310_TMP_B0 + +/* + * These values (defined in the spec) indicate how to scale the raw register + * values for each level of precision available. + */ +static const int scale_factors[] = { + 524288, + 1572864, + 3670016, + 7864320, + 253952, + 516096, + 1040384, + 2088960, +}; + +struct dps310_data { + struct i2c_client *client; + struct regmap *regmap; + struct mutex lock; /* Lock for sequential HW access functions */ + + s32 c0, c1; + s32 c00, c10, c20, c30, c01, c11, c21; + s32 pressure_raw; + s32 temp_raw; +}; + +static const struct iio_chan_spec dps310_channels[] = { + { + .type = IIO_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_PROCESSED), + }, + { + .type = IIO_PRESSURE, + .info_mask_separate = BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_PROCESSED), + }, +}; + +/* To be called after checking the COEF_RDY bit in MEAS_CFG */ +static int dps310_get_coefs(struct dps310_data *data) +{ + int rc; + u8 coef[18]; + u32 c0, c1; + u32 c00, c10, c20, c30, c01, c11, c21; + + /* Read all sensor calibration coefficients from the COEF registers. */ + rc = regmap_bulk_read(data->regmap, DPS310_COEF_BASE, coef, + sizeof(coef)); + if (rc < 0) + return rc; + + /* + * Calculate temperature calibration coefficients c0 and c1. The + * numbers are 12-bit 2's complement numbers. + */ + c0 = (coef[0] << 4) | (coef[1] >> 4); + data->c0 = sign_extend32(c0, 11); + + c1 = ((coef[1] & GENMASK(3, 0)) << 8) | coef[2]; + data->c1 = sign_extend32(c1, 11); + + /* + * Calculate pressure calibration coefficients. c00 and c10 are 20 bit + * 2's complement numbers, while the rest are 16 bit 2's complement + * numbers. + */ + c00 = (coef[3] << 12) | (coef[4] << 4) | (coef[5] >> 4); + data->c00 = sign_extend32(c00, 19); + + c10 = ((coef[5] & GENMASK(3, 0)) << 16) | (coef[6] << 8) | coef[7]; + data->c10 = sign_extend32(c10, 19); + + c01 = (coef[8] << 8) | coef[9]; + data->c01 = sign_extend32(c01, 15); + + c11 = (coef[10] << 8) | coef[11]; + data->c11 = sign_extend32(c11, 15); + + c20 = (coef[12] << 8) | coef[13]; + data->c20 = sign_extend32(c20, 15); + + c21 = (coef[14] << 8) | coef[15]; + data->c21 = sign_extend32(c21, 15); + + c30 = (coef[16] << 8) | coef[17]; + data->c30 = sign_extend32(c30, 15); + + return 0; +} + +static int dps310_get_pres_precision(struct dps310_data *data) +{ + int rc; + int val; + + rc = regmap_read(data->regmap, DPS310_PRS_CFG, &val); + if (rc < 0) + return rc; + + return BIT(val & GENMASK(2, 0)); +} + +static int dps310_get_temp_precision(struct dps310_data *data) +{ + int rc; + int val; + + rc = regmap_read(data->regmap, DPS310_TMP_CFG, &val); + if (rc < 0) + return rc; + + /* + * Scale factor is bottom 4 bits of the register, but 1111 is + * reserved so just grab bottom three + */ + return BIT(val & GENMASK(2, 0)); +} + +/* Called with lock held */ +static int dps310_set_pres_precision(struct dps310_data *data, int val) +{ + int rc; + u8 shift_en; + + if (val < 0 || val > 128) + return -EINVAL; + + shift_en = val >= 16 ? DPS310_PRS_SHIFT_EN : 0; + rc = regmap_write_bits(data->regmap, DPS310_CFG_REG, + DPS310_PRS_SHIFT_EN, shift_en); + if (rc) + return rc; + + return regmap_update_bits(data->regmap, DPS310_PRS_CFG, + DPS310_PRS_PRC_BITS, ilog2(val)); +} + +/* Called with lock held */ +static int dps310_set_temp_precision(struct dps310_data *data, int val) +{ + int rc; + u8 shift_en; + + if (val < 0 || val > 128) + return -EINVAL; + + shift_en = val >= 16 ? DPS310_TMP_SHIFT_EN : 0; + rc = regmap_write_bits(data->regmap, DPS310_CFG_REG, + DPS310_TMP_SHIFT_EN, shift_en); + if (rc) + return rc; + + return regmap_update_bits(data->regmap, DPS310_TMP_CFG, + DPS310_TMP_PRC_BITS, ilog2(val)); +} + +/* Called with lock held */ +static int dps310_set_pres_samp_freq(struct dps310_data *data, int freq) +{ + u8 val; + + if (freq < 0 || freq > 128) + return -EINVAL; + + val = ilog2(freq) << 4; + + return regmap_update_bits(data->regmap, DPS310_PRS_CFG, + DPS310_PRS_RATE_BITS, val); +} + +/* Called with lock held */ +static int dps310_set_temp_samp_freq(struct dps310_data *data, int freq) +{ + u8 val; + + if (freq < 0 || freq > 128) + return -EINVAL; + + val = ilog2(freq) << 4; + + return regmap_update_bits(data->regmap, DPS310_TMP_CFG, + DPS310_TMP_RATE_BITS, val); +} + +static int dps310_get_pres_samp_freq(struct dps310_data *data) +{ + int rc; + int val; + + rc = regmap_read(data->regmap, DPS310_PRS_CFG, &val); + if (rc < 0) + return rc; + + return BIT((val & DPS310_PRS_RATE_BITS) >> 4); +} + +static int dps310_get_temp_samp_freq(struct dps310_data *data) +{ + int rc; + int val; + + rc = regmap_read(data->regmap, DPS310_TMP_CFG, &val); + if (rc < 0) + return rc; + + return BIT((val & DPS310_TMP_RATE_BITS) >> 4); +} + +static int dps310_get_pres_k(struct dps310_data *data) +{ + int rc = dps310_get_pres_precision(data); + + if (rc < 0) + return rc; + + return scale_factors[ilog2(rc)]; +} + +static int dps310_get_temp_k(struct dps310_data *data) +{ + int rc = dps310_get_temp_precision(data); + + if (rc < 0) + return rc; + + return scale_factors[ilog2(rc)]; +} + +static int dps310_read_pres_raw(struct dps310_data *data) +{ + int rc; + int rate; + int ready; + int timeout; + s32 raw; + u8 val[3]; + + if (mutex_lock_interruptible(&data->lock)) + return -EINTR; + + rate = dps310_get_pres_samp_freq(data); + timeout = DPS310_POLL_TIMEOUT_US(rate); + + /* Poll for sensor readiness; base the timeout upon the sample rate. */ + rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, + ready & DPS310_PRS_RDY, + DPS310_POLL_SLEEP_US(timeout), timeout); + if (rc) + goto done; + + rc = regmap_bulk_read(data->regmap, DPS310_PRS_BASE, val, sizeof(val)); + if (rc < 0) + goto done; + + raw = (val[0] << 16) | (val[1] << 8) | val[2]; + data->pressure_raw = sign_extend32(raw, 23); + +done: + mutex_unlock(&data->lock); + return rc; +} + +/* Called with lock held */ +static int dps310_read_temp_ready(struct dps310_data *data) +{ + int rc; + u8 val[3]; + s32 raw; + + rc = regmap_bulk_read(data->regmap, DPS310_TMP_BASE, val, sizeof(val)); + if (rc < 0) + return rc; + + raw = (val[0] << 16) | (val[1] << 8) | val[2]; + data->temp_raw = sign_extend32(raw, 23); + + return 0; +} + +static int dps310_read_temp_raw(struct dps310_data *data) +{ + int rc; + int rate; + int ready; + int timeout; + + if (mutex_lock_interruptible(&data->lock)) + return -EINTR; + + rate = dps310_get_temp_samp_freq(data); + timeout = DPS310_POLL_TIMEOUT_US(rate); + + /* Poll for sensor readiness; base the timeout upon the sample rate. */ + rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, + ready & DPS310_TMP_RDY, + DPS310_POLL_SLEEP_US(timeout), timeout); + if (rc < 0) + goto done; + + rc = dps310_read_temp_ready(data); + +done: + mutex_unlock(&data->lock); + return rc; +} + +static bool dps310_is_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case DPS310_PRS_CFG: + case DPS310_TMP_CFG: + case DPS310_MEAS_CFG: + case DPS310_CFG_REG: + case DPS310_RESET: + /* No documentation available on the registers below */ + case 0x0e: + case 0x0f: + case 0x62: + return true; + default: + return false; + } +} + +static bool dps310_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case DPS310_PRS_B0: + case DPS310_PRS_B1: + case DPS310_PRS_B2: + case DPS310_TMP_B0: + case DPS310_TMP_B1: + case DPS310_TMP_B2: + case DPS310_MEAS_CFG: + case 0x32: /* No documentation available on this register */ + return true; + default: + return false; + } +} + +static int dps310_write_raw(struct iio_dev *iio, + struct iio_chan_spec const *chan, int val, + int val2, long mask) +{ + int rc; + struct dps310_data *data = iio_priv(iio); + + if (mutex_lock_interruptible(&data->lock)) + return -EINTR; + + switch (mask) { + case IIO_CHAN_INFO_SAMP_FREQ: + switch (chan->type) { + case IIO_PRESSURE: + rc = dps310_set_pres_samp_freq(data, val); + break; + + case IIO_TEMP: + rc = dps310_set_temp_samp_freq(data, val); + break; + + default: + rc = -EINVAL; + break; + } + break; + + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + switch (chan->type) { + case IIO_PRESSURE: + rc = dps310_set_pres_precision(data, val); + break; + + case IIO_TEMP: + rc = dps310_set_temp_precision(data, val); + break; + + default: + rc = -EINVAL; + break; + } + break; + + default: + rc = -EINVAL; + break; + } + + mutex_unlock(&data->lock); + return rc; +} + +static int dps310_calculate_pressure(struct dps310_data *data) +{ + int i; + int rc; + int t_ready; + int kpi = dps310_get_pres_k(data); + int kti = dps310_get_temp_k(data); + s64 rem = 0ULL; + s64 pressure = 0ULL; + s64 p; + s64 t; + s64 denoms[7]; + s64 nums[7]; + s64 rems[7]; + s64 kp; + s64 kt; + + if (kpi < 0) + return kpi; + + if (kti < 0) + return kti; + + kp = (s64)kpi; + kt = (s64)kti; + + /* Refresh temp if it's ready, otherwise just use the latest value */ + if (mutex_trylock(&data->lock)) { + rc = regmap_read(data->regmap, DPS310_MEAS_CFG, &t_ready); + if (rc >= 0 && t_ready & DPS310_TMP_RDY) + dps310_read_temp_ready(data); + + mutex_unlock(&data->lock); + } + + p = (s64)data->pressure_raw; + t = (s64)data->temp_raw; + + /* Section 4.9.1 of the DPS310 spec; algebra'd to avoid underflow */ + nums[0] = (s64)data->c00; + denoms[0] = 1LL; + nums[1] = p * (s64)data->c10; + denoms[1] = kp; + nums[2] = p * p * (s64)data->c20; + denoms[2] = kp * kp; + nums[3] = p * p * p * (s64)data->c30; + denoms[3] = kp * kp * kp; + nums[4] = t * (s64)data->c01; + denoms[4] = kt; + nums[5] = t * p * (s64)data->c11; + denoms[5] = kp * kt; + nums[6] = t * p * p * (s64)data->c21; + denoms[6] = kp * kp * kt; + + /* Kernel lacks a div64_s64_rem function; denoms are all positive */ + for (i = 0; i < 7; ++i) { + u64 irem; + + if (nums[i] < 0LL) { + pressure -= div64_u64_rem(-nums[i], denoms[i], &irem); + rems[i] = -irem; + } else { + pressure += div64_u64_rem(nums[i], denoms[i], &irem); + rems[i] = (s64)irem; + } + } + + /* Increase precision and calculate the remainder sum */ + for (i = 0; i < 7; ++i) + rem += div64_s64((s64)rems[i] * 1000000000LL, denoms[i]); + + pressure += div_s64(rem, 1000000000LL); + if (pressure < 0LL) + return -ERANGE; + + return (int)min_t(s64, pressure, INT_MAX); +} + +static int dps310_read_pressure(struct dps310_data *data, int *val, int *val2, + long mask) +{ + int rc; + + switch (mask) { + case IIO_CHAN_INFO_SAMP_FREQ: + rc = dps310_get_pres_samp_freq(data); + if (rc < 0) + return rc; + + *val = rc; + return IIO_VAL_INT; + + case IIO_CHAN_INFO_PROCESSED: + rc = dps310_read_pres_raw(data); + if (rc) + return rc; + + rc = dps310_calculate_pressure(data); + if (rc < 0) + return rc; + + *val = rc; + *val2 = 1000; /* Convert Pa to KPa per IIO ABI */ + return IIO_VAL_FRACTIONAL; + + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + rc = dps310_get_pres_precision(data); + if (rc < 0) + return rc; + + *val = rc; + return IIO_VAL_INT; + + default: + return -EINVAL; + } +} + +static int dps310_calculate_temp(struct dps310_data *data) +{ + s64 c0; + s64 t; + int kt = dps310_get_temp_k(data); + + if (kt < 0) + return kt; + + /* Obtain inverse-scaled offset */ + c0 = div_s64((s64)kt * (s64)data->c0, 2); + + /* Add the offset to the unscaled temperature */ + t = c0 + ((s64)data->temp_raw * (s64)data->c1); + + /* Convert to milliCelsius and scale the temperature */ + return (int)div_s64(t * 1000LL, kt); +} + +static int dps310_read_temp(struct dps310_data *data, int *val, int *val2, + long mask) +{ + int rc; + + switch (mask) { + case IIO_CHAN_INFO_SAMP_FREQ: + rc = dps310_get_temp_samp_freq(data); + if (rc < 0) + return rc; + + *val = rc; + return IIO_VAL_INT; + + case IIO_CHAN_INFO_PROCESSED: + rc = dps310_read_temp_raw(data); + if (rc) + return rc; + + rc = dps310_calculate_temp(data); + if (rc < 0) + return rc; + + *val = rc; + return IIO_VAL_INT; + + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + rc = dps310_get_temp_precision(data); + if (rc < 0) + return rc; + + *val = rc; + return IIO_VAL_INT; + + default: + return -EINVAL; + } +} + +static int dps310_read_raw(struct iio_dev *iio, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct dps310_data *data = iio_priv(iio); + + switch (chan->type) { + case IIO_PRESSURE: + return dps310_read_pressure(data, val, val2, mask); + + case IIO_TEMP: + return dps310_read_temp(data, val, val2, mask); + + default: + return -EINVAL; + } +} + +static void dps310_reset(void *action_data) +{ + struct dps310_data *data = action_data; + + regmap_write(data->regmap, DPS310_RESET, DPS310_RESET_MAGIC); +} + +static const struct regmap_config dps310_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = dps310_is_writeable_reg, + .volatile_reg = dps310_is_volatile_reg, + .cache_type = REGCACHE_RBTREE, + .max_register = 0x62, /* No documentation available on this register */ +}; + +static const struct iio_info dps310_info = { + .read_raw = dps310_read_raw, + .write_raw = dps310_write_raw, +}; + +/* + * Some verions of chip will read temperatures in the ~60C range when + * its actually ~20C. This is the manufacturer recommended workaround + * to correct the issue. The registers used below are undocumented. + */ +static int dps310_temp_workaround(struct dps310_data *data) +{ + int rc; + int reg; + + rc = regmap_read(data->regmap, 0x32, ®); + if (rc < 0) + return rc; + + /* + * If bit 1 is set then the device is okay, and the workaround does not + * need to be applied + */ + if (reg & BIT(1)) + return 0; + + rc = regmap_write(data->regmap, 0x0e, 0xA5); + if (rc < 0) + return rc; + + rc = regmap_write(data->regmap, 0x0f, 0x96); + if (rc < 0) + return rc; + + rc = regmap_write(data->regmap, 0x62, 0x02); + if (rc < 0) + return rc; + + rc = regmap_write(data->regmap, 0x0e, 0x00); + if (rc < 0) + return rc; + + return regmap_write(data->regmap, 0x0f, 0x00); +} + +static int dps310_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct dps310_data *data; + struct iio_dev *iio; + int rc, ready; + + iio = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!iio) + return -ENOMEM; + + data = iio_priv(iio); + data->client = client; + mutex_init(&data->lock); + + iio->dev.parent = &client->dev; + iio->name = id->name; + iio->channels = dps310_channels; + iio->num_channels = ARRAY_SIZE(dps310_channels); + iio->info = &dps310_info; + iio->modes = INDIO_DIRECT_MODE; + + data->regmap = devm_regmap_init_i2c(client, &dps310_regmap_config); + if (IS_ERR(data->regmap)) + return PTR_ERR(data->regmap); + + /* Register to run the device reset when the device is removed */ + rc = devm_add_action_or_reset(&client->dev, dps310_reset, data); + if (rc) + return rc; + + /* + * Set up pressure sensor in single sample, one measurement per second + * mode + */ + rc = regmap_write(data->regmap, DPS310_PRS_CFG, 0); + + /* + * Set up external (MEMS) temperature sensor in single sample, one + * measurement per second mode + */ + rc = regmap_write(data->regmap, DPS310_TMP_CFG, DPS310_TMP_EXT); + if (rc < 0) + return rc; + + /* Temp and pressure shifts are disabled when PRC <= 8 */ + rc = regmap_write_bits(data->regmap, DPS310_CFG_REG, + DPS310_PRS_SHIFT_EN | DPS310_TMP_SHIFT_EN, 0); + if (rc < 0) + return rc; + + /* MEAS_CFG doesn't update correctly unless first written with 0 */ + rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG, + DPS310_MEAS_CTRL_BITS, 0); + if (rc < 0) + return rc; + + /* Turn on temperature and pressure measurement in the background */ + rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG, + DPS310_MEAS_CTRL_BITS, DPS310_PRS_EN | + DPS310_TEMP_EN | DPS310_BACKGROUND); + if (rc < 0) + return rc; + + /* + * Calibration coefficients required for reporting temperature. + * They are available 40ms after the device has started + */ + rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready, + ready & DPS310_COEF_RDY, 10000, 40000); + if (rc < 0) + return rc; + + rc = dps310_get_coefs(data); + if (rc < 0) + return rc; + + rc = dps310_temp_workaround(data); + if (rc < 0) + return rc; + + rc = devm_iio_device_register(&client->dev, iio); + if (rc) + return rc; + + i2c_set_clientdata(client, iio); + + return 0; +} + +static const struct i2c_device_id dps310_id[] = { + { DPS310_DEV_NAME, 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, dps310_id); + +static struct i2c_driver dps310_driver = { + .driver = { + .name = DPS310_DEV_NAME, + }, + .probe = dps310_probe, + .id_table = dps310_id, +}; +module_i2c_driver(dps310_driver); + +MODULE_AUTHOR("Joel Stanley <joel@jms.id.au>"); +MODULE_DESCRIPTION("Infineon DPS310 pressure and temperature sensor"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c index d7b1c00ceb4d..953235052155 100644 --- a/drivers/iio/pressure/hid-sensor-press.c +++ b/drivers/iio/pressure/hid-sensor-press.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. - * */ #include <linux/device.h> #include <linux/platform_device.h> diff --git a/drivers/iio/pressure/hp03.c b/drivers/iio/pressure/hp03.c index 406934ea6228..f00102577fd5 100644 --- a/drivers/iio/pressure/hp03.c +++ b/drivers/iio/pressure/hp03.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2016 Marek Vasut <marex@denx.de> * * Driver for Hope RF HP03 digital temperature and pressure sensor. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #define pr_fmt(fmt) "hp03: " fmt diff --git a/drivers/iio/pressure/hp206c.c b/drivers/iio/pressure/hp206c.c index c38c19678cf6..3ac3632e7242 100644 --- a/drivers/iio/pressure/hp206c.c +++ b/drivers/iio/pressure/hp206c.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * hp206c.c - HOPERF HP206C precision barometer and altimeter sensor * * Copyright (c) 2016, Intel Corporation. * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * (7-bit I2C slave address 0x76) * * Datasheet: diff --git a/drivers/iio/pressure/mpl115.c b/drivers/iio/pressure/mpl115.c index ab4786d0102b..ca81a3dc5646 100644 --- a/drivers/iio/pressure/mpl115.c +++ b/drivers/iio/pressure/mpl115.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * mpl115.c - Support for Freescale MPL115A pressure/temperature sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * TODO: shutdown pin - * */ #include <linux/module.h> diff --git a/drivers/iio/pressure/mpl115.h b/drivers/iio/pressure/mpl115.h index 01b652774dc3..57d55eb8e661 100644 --- a/drivers/iio/pressure/mpl115.h +++ b/drivers/iio/pressure/mpl115.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Freescale MPL115A pressure/temperature sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * Copyright (c) 2016 Akinobu Mita <akinobu.mita@gmail.com> - * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. */ #ifndef _MPL115_H_ diff --git a/drivers/iio/pressure/mpl115_i2c.c b/drivers/iio/pressure/mpl115_i2c.c index 1a29be462f6e..ac1f12bcb65e 100644 --- a/drivers/iio/pressure/mpl115_i2c.c +++ b/drivers/iio/pressure/mpl115_i2c.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Freescale MPL115A2 pressure/temperature sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * (7-bit I2C slave address 0x60) * * Datasheet: http://www.nxp.com/files/sensors/doc/data_sheet/MPL115A2.pdf diff --git a/drivers/iio/pressure/mpl115_spi.c b/drivers/iio/pressure/mpl115_spi.c index 9ebf55f5b3aa..4d064f98f56a 100644 --- a/drivers/iio/pressure/mpl115_spi.c +++ b/drivers/iio/pressure/mpl115_spi.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Freescale MPL115A1 pressure/temperature sensor * * Copyright (c) 2016 Akinobu Mita <akinobu.mita@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Datasheet: http://www.nxp.com/files/sensors/doc/data_sheet/MPL115A1.pdf */ diff --git a/drivers/iio/pressure/mpl3115.c b/drivers/iio/pressure/mpl3115.c index 7537547fb7ee..d066f3c5a8a6 100644 --- a/drivers/iio/pressure/mpl3115.c +++ b/drivers/iio/pressure/mpl3115.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * mpl3115.c - Support for Freescale MPL3115A2 pressure/temperature sensor * * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * (7-bit I2C slave address 0x60) * * TODO: FIFO buffer, altimeter mode, oversampling, continuous mode, diff --git a/drivers/iio/pressure/ms5637.c b/drivers/iio/pressure/ms5637.c index e2f73e6dc58f..f49c7003c72a 100644 --- a/drivers/iio/pressure/ms5637.c +++ b/drivers/iio/pressure/ms5637.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ms5637.c - Support for Measurement-Specialties MS5637, MS5805 * MS5837 and MS8607 pressure & temperature sensor * * Copyright (c) 2015 Measurement-Specialties * - * Licensed under the GPL-2. - * * (7-bit I2C slave address 0x76) * * Datasheet: diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h index 57946605f3ba..6a720cfb5686 100644 --- a/drivers/iio/pressure/st_pressure.h +++ b/drivers/iio/pressure/st_pressure.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * STMicroelectronics pressures driver * @@ -5,7 +6,6 @@ * * Denis Ciocca <denis.ciocca@st.com> * v. 1.0.0 - * Licensed under the GPL-2. */ #ifndef ST_PRESS_H diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c index 99468d0a64e7..4566e08a64a1 100644 --- a/drivers/iio/pressure/st_pressure_buffer.c +++ b/drivers/iio/pressure/st_pressure_buffer.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics pressures driver * * Copyright 2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/module.h> diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 38dcdb7c000e..b960e76f7dfd 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics pressures driver * * Copyright 2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c index a60849dd4ea7..b7d9ba706abc 100644 --- a/drivers/iio/pressure/st_pressure_i2c.c +++ b/drivers/iio/pressure/st_pressure_i2c.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics pressures driver * * Copyright 2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c index 79a12ed46e54..ef61401c41d3 100644 --- a/drivers/iio/pressure/st_pressure_spi.c +++ b/drivers/iio/pressure/st_pressure_spi.c @@ -1,11 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * STMicroelectronics pressures driver * * Copyright 2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> - * - * Licensed under the GPL-2. */ #include <linux/kernel.h> diff --git a/drivers/iio/pressure/t5403.c b/drivers/iio/pressure/t5403.c index 92c00f603b1d..22abd28071b7 100644 --- a/drivers/iio/pressure/t5403.c +++ b/drivers/iio/pressure/t5403.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * t5403.c - Support for EPCOS T5403 pressure/temperature sensor * * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * (7-bit I2C slave address 0x77) * * TODO: end-of-conversion irq diff --git a/drivers/iio/pressure/zpa2326.c b/drivers/iio/pressure/zpa2326.c index 81d8f24eaeb4..9d0d07930236 100644 --- a/drivers/iio/pressure/zpa2326.c +++ b/drivers/iio/pressure/zpa2326.c @@ -1,18 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Murata ZPA2326 pressure and temperature sensor IIO driver * * Copyright (c) 2016 Parrot S.A. * * Author: Gregor Boirie <gregor.boirie@parrot.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ /** diff --git a/drivers/iio/pressure/zpa2326.h b/drivers/iio/pressure/zpa2326.h index 05d3e1e3a449..45bd7900975b 100644 --- a/drivers/iio/pressure/zpa2326.h +++ b/drivers/iio/pressure/zpa2326.h @@ -1,18 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Murata ZPA2326 pressure and temperature sensor IIO driver * * Copyright (c) 2016 Parrot S.A. * * Author: Gregor Boirie <gregor.boirie@parrot.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #ifndef _ZPA2326_H diff --git a/drivers/iio/pressure/zpa2326_i2c.c b/drivers/iio/pressure/zpa2326_i2c.c index e4d27dd4493a..1a65791ba279 100644 --- a/drivers/iio/pressure/zpa2326_i2c.c +++ b/drivers/iio/pressure/zpa2326_i2c.c @@ -1,18 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Murata ZPA2326 I2C pressure and temperature sensor driver * * Copyright (c) 2016 Parrot S.A. * * Author: Gregor Boirie <gregor.boirie@parrot.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/pressure/zpa2326_spi.c b/drivers/iio/pressure/zpa2326_spi.c index bd2c1c319fca..f37a4c738c75 100644 --- a/drivers/iio/pressure/zpa2326_spi.c +++ b/drivers/iio/pressure/zpa2326_spi.c @@ -1,18 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Murata ZPA2326 SPI pressure and temperature sensor driver * * Copyright (c) 2016 Parrot S.A. * * Author: Gregor Boirie <gregor.boirie@parrot.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/iio/proximity/Kconfig b/drivers/iio/proximity/Kconfig index e9f254ae3892..6b5cce6f1a7b 100644 --- a/drivers/iio/proximity/Kconfig +++ b/drivers/iio/proximity/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Proximity sensors # diff --git a/drivers/iio/proximity/rfd77402.c b/drivers/iio/proximity/rfd77402.c index fe29fb1a19a6..36480c0100a7 100644 --- a/drivers/iio/proximity/rfd77402.c +++ b/drivers/iio/proximity/rfd77402.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * rfd77402.c - Support for RF Digital RFD77402 Time-of-Flight (distance) sensor * * Copyright 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * 7-bit I2C slave address 0x4c * * TODO: interrupt diff --git a/drivers/iio/proximity/srf04.c b/drivers/iio/proximity/srf04.c index 1bad4018d1aa..8b50d56b0a03 100644 --- a/drivers/iio/proximity/srf04.c +++ b/drivers/iio/proximity/srf04.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * SRF04: ultrasonic sensor for distance measuring by using GPIOs * * Copyright (c) 2017 Andreas Klinger <ak@it-klinger.de> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * For details about the device see: * http://www.robot-electronics.co.uk/htm/srf04tech.htm * diff --git a/drivers/iio/proximity/srf08.c b/drivers/iio/proximity/srf08.c index f2bf783f829a..b23ce446b7be 100644 --- a/drivers/iio/proximity/srf08.c +++ b/drivers/iio/proximity/srf08.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * srf08.c - Support for Devantech SRFxx ultrasonic ranger * with i2c interface @@ -5,10 +6,6 @@ * * Copyright (c) 2016, 2017 Andreas Klinger <ak@it-klinger.de> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * For details about the device see: * http://www.robot-electronics.co.uk/htm/srf08tech.html * http://www.robot-electronics.co.uk/htm/srf10tech.htm diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c index ff80409e0c44..612f79c53cfc 100644 --- a/drivers/iio/proximity/sx9500.c +++ b/drivers/iio/proximity/sx9500.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2014 Intel Corporation * * Driver for Semtech's SX9500 capacitive proximity/button solution. * Datasheet available at * <http://www.semtech.com/images/datasheet/sx9500.pdf>. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/iio/resolver/Kconfig b/drivers/iio/resolver/Kconfig index 786801be54f6..47dbfead9b31 100644 --- a/drivers/iio/resolver/Kconfig +++ b/drivers/iio/resolver/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Resolver/Synchro drivers # diff --git a/drivers/iio/resolver/Makefile b/drivers/iio/resolver/Makefile index 398d82d50028..fa558138ce45 100644 --- a/drivers/iio/resolver/Makefile +++ b/drivers/iio/resolver/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for Resolver/Synchro drivers # diff --git a/drivers/iio/resolver/ad2s1200.c b/drivers/iio/resolver/ad2s1200.c index 28e618af9939..17b89623418c 100644 --- a/drivers/iio/resolver/ad2s1200.c +++ b/drivers/iio/resolver/ad2s1200.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ad2s1200.c simple support for the ADI Resolver to Digital Converters: * AD2S1200/1205 * * Copyright (c) 2018-2018 David Veenstra <davidjulianveenstra@gmail.com> * Copyright (c) 2010-2010 Analog Devices Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/bitops.h> diff --git a/drivers/iio/temperature/Kconfig b/drivers/iio/temperature/Kconfig index c185cbee25c7..737faa0901fe 100644 --- a/drivers/iio/temperature/Kconfig +++ b/drivers/iio/temperature/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Temperature sensor drivers # diff --git a/drivers/iio/temperature/hid-sensor-temperature.c b/drivers/iio/temperature/hid-sensor-temperature.c index b592fc4f007e..eda55b9c1e9b 100644 --- a/drivers/iio/temperature/hid-sensor-temperature.c +++ b/drivers/iio/temperature/hid-sensor-temperature.c @@ -1,18 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2017, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. */ #include <linux/device.h> #include <linux/hid-sensor-hub.h> diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c index c31b9633f32d..c613a64c017f 100644 --- a/drivers/iio/temperature/maxim_thermocouple.c +++ b/drivers/iio/temperature/maxim_thermocouple.c @@ -10,6 +10,8 @@ #include <linux/init.h> #include <linux/mutex.h> #include <linux/err.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <linux/spi/spi.h> #include <linux/iio/iio.h> #include <linux/iio/trigger.h> @@ -262,9 +264,17 @@ static const struct spi_device_id maxim_thermocouple_id[] = { }; MODULE_DEVICE_TABLE(spi, maxim_thermocouple_id); +static const struct of_device_id maxim_thermocouple_of_match[] = { + { .compatible = "maxim,max6675" }, + { .compatible = "maxim,max31855" }, + { }, +}; +MODULE_DEVICE_TABLE(of, maxim_thermocouple_of_match); + static struct spi_driver maxim_thermocouple_driver = { .driver = { .name = MAXIM_THERMOCOUPLE_DRV_NAME, + .of_match_table = maxim_thermocouple_of_match, }, .probe = maxim_thermocouple_probe, .remove = maxim_thermocouple_remove, diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c index 13a4cec64ea8..b7c56ddf884f 100644 --- a/drivers/iio/temperature/mlx90614.c +++ b/drivers/iio/temperature/mlx90614.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * mlx90614.c - Support for Melexis MLX90614 contactless IR temperature sensor * @@ -5,10 +6,6 @@ * Copyright (c) 2015 Essensium NV * Copyright (c) 2015 Melexis * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Driver for the Melexis MLX90614 I2C 16-bit IR thermopile sensor * * (7-bit I2C slave address 0x5a, 100KHz bus speed only!) @@ -20,7 +17,6 @@ * i2c adapter is locked since it cannot be used by other clients. The SCL line * always has a pull-up so we do not need an extra GPIO to drive it high. If * the "wakeup" GPIO is not given, power management will be disabled. - * */ #include <linux/err.h> diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c index be03be719efe..eaca6ba06864 100644 --- a/drivers/iio/temperature/mlx90632.c +++ b/drivers/iio/temperature/mlx90632.c @@ -81,6 +81,8 @@ /* Magic constants */ #define MLX90632_ID_MEDICAL 0x0105 /* EEPROM DSPv5 Medical device id */ #define MLX90632_ID_CONSUMER 0x0205 /* EEPROM DSPv5 Consumer device id */ +#define MLX90632_DSP_VERSION 5 /* DSP version */ +#define MLX90632_DSP_MASK GENMASK(7, 0) /* DSP version in EE_VERSION */ #define MLX90632_RESET_CMD 0x0006 /* Reset sensor (address or global) */ #define MLX90632_REF_12 12LL /**< ResCtrlRef value of Ch 1 or Ch 2 */ #define MLX90632_REF_3 12LL /**< ResCtrlRef value of Channel 3 */ @@ -667,10 +669,13 @@ static int mlx90632_probe(struct i2c_client *client, } else if (read == MLX90632_ID_CONSUMER) { dev_dbg(&client->dev, "Detected Consumer EEPROM calibration %x\n", read); + } else if ((read & MLX90632_DSP_MASK) == MLX90632_DSP_VERSION) { + dev_dbg(&client->dev, + "Detected Unknown EEPROM calibration %x\n", read); } else { dev_err(&client->dev, - "EEPROM version mismatch %x (expected %x or %x)\n", - read, MLX90632_ID_CONSUMER, MLX90632_ID_MEDICAL); + "Wrong DSP version %x (expected %x)\n", + read, MLX90632_DSP_VERSION); return -EPROTONOSUPPORT; } diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c index a9b5b7cc7836..cc45d8345eb9 100644 --- a/drivers/iio/temperature/tmp006.c +++ b/drivers/iio/temperature/tmp006.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tmp006.c - Support for TI TMP006 IR thermopile sensor * * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Driver for the Texas Instruments I2C 16-bit IR thermopile sensor * * (7-bit I2C slave address 0x40, changeable via ADR pins) diff --git a/drivers/iio/temperature/tmp007.c b/drivers/iio/temperature/tmp007.c index 0e3f2d432e10..7df234d96f94 100644 --- a/drivers/iio/temperature/tmp007.c +++ b/drivers/iio/temperature/tmp007.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tmp007.c - Support for TI TMP007 IR thermopile sensor with integrated math engine * * Copyright (c) 2017 Manivannan Sadhasivam <manivannanece23@gmail.com> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. - * * Driver for the Texas Instruments I2C 16-bit IR thermopile sensor * * (7-bit I2C slave address (0x40 - 0x47), changeable via ADR pins) @@ -15,7 +12,6 @@ * 1. This driver assumes that the sensor has been calibrated beforehand * 2. Limit threshold events are enabled at the start * 3. Operating mode: INT - * */ #include <linux/err.h> diff --git a/drivers/iio/temperature/tsys01.c b/drivers/iio/temperature/tsys01.c index 3799d007c8e7..d41f050c2fea 100644 --- a/drivers/iio/temperature/tsys01.c +++ b/drivers/iio/temperature/tsys01.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tsys01.c - Support for Measurement-Specialties tsys01 temperature sensor * * Copyright (c) 2015 Measurement-Specialties * - * Licensed under the GPL-2. - * * Datasheet: * http://www.meas-spec.com/downloads/TSYS01_Digital_Temperature_Sensor.pdf */ diff --git a/drivers/iio/temperature/tsys02d.c b/drivers/iio/temperature/tsys02d.c index 9b2e56fa5fd5..6735af400b22 100644 --- a/drivers/iio/temperature/tsys02d.c +++ b/drivers/iio/temperature/tsys02d.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tsys02d.c - Support for Measurement-Specialties tsys02d temperature sensor * * Copyright (c) 2015 Measurement-Specialties * - * Licensed under the GPL-2. - * * (7-bit I2C slave address 0x40) * * Datasheet: diff --git a/drivers/iio/trigger/Kconfig b/drivers/iio/trigger/Kconfig index a633d2c8e805..8cef2f7452e8 100644 --- a/drivers/iio/trigger/Kconfig +++ b/drivers/iio/trigger/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Industrial I/O standalone triggers # diff --git a/drivers/iio/trigger/iio-trig-hrtimer.c b/drivers/iio/trigger/iio-trig-hrtimer.c index 7accd0187ba1..a5e670726717 100644 --- a/drivers/iio/trigger/iio-trig-hrtimer.c +++ b/drivers/iio/trigger/iio-trig-hrtimer.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * The industrial I/O periodic hrtimer trigger driver * @@ -6,11 +7,6 @@ * Copyright (C) 2012, Analog Device Inc. * Author: Lars-Peter Clausen <lars@metafoo.de> * Copyright (C) 2015, Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * */ #include <linux/kernel.h> #include <linux/slab.h> diff --git a/drivers/iio/trigger/iio-trig-interrupt.c b/drivers/iio/trigger/iio-trig-interrupt.c index 171c4ed03543..94a487caf421 100644 --- a/drivers/iio/trigger/iio-trig-interrupt.c +++ b/drivers/iio/trigger/iio-trig-interrupt.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Industrial I/O - generic interrupt based trigger support * * Copyright (c) 2008-2013 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/iio/trigger/iio-trig-loop.c b/drivers/iio/trigger/iio-trig-loop.c index 9258d3cf149b..4a00668e3258 100644 --- a/drivers/iio/trigger/iio-trig-loop.c +++ b/drivers/iio/trigger/iio-trig-loop.c @@ -1,8 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2016 Jonathan Cameron <jic23@kernel.org> * - * Licensed under the GPL-2. - * * Based on a mashup of the hrtimer trigger and continuous sampling proposal of * Gregor Boirie <gregor.boirie@parrot.com> * diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c index 45c4897295d6..e09e58072872 100644 --- a/drivers/iio/trigger/iio-trig-sysfs.c +++ b/drivers/iio/trigger/iio-trig-sysfs.c @@ -1,8 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. - * */ #include <linux/kernel.h> |