diff options
Diffstat (limited to 'drivers/iio/magnetometer/hmc5843_core.c')
| -rw-r--r-- | drivers/iio/magnetometer/hmc5843_core.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/iio/magnetometer/hmc5843_core.c b/drivers/iio/magnetometer/hmc5843_core.c index ada142fb7aa3..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> @@ -237,6 +228,15 @@ int hmc5843_set_measurement_configuration(struct iio_dev *indio_dev, return hmc5843_set_meas_conf(data, meas_conf); } +static const struct iio_mount_matrix * +hmc5843_get_mount_matrix(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan) +{ + struct hmc5843_data *data = iio_priv(indio_dev); + + return &data->orientation; +} + static const struct iio_enum hmc5843_meas_conf_enum = { .items = hmc5843_meas_conf_modes, .num_items = ARRAY_SIZE(hmc5843_meas_conf_modes), @@ -247,7 +247,8 @@ static const struct iio_enum hmc5843_meas_conf_enum = { static const struct iio_chan_spec_ext_info hmc5843_ext_info[] = { IIO_ENUM("meas_conf", true, &hmc5843_meas_conf_enum), IIO_ENUM_AVAILABLE("meas_conf", &hmc5843_meas_conf_enum), - { }, + IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, hmc5843_get_mount_matrix), + { } }; static const struct iio_enum hmc5983_meas_conf_enum = { @@ -260,7 +261,8 @@ static const struct iio_enum hmc5983_meas_conf_enum = { static const struct iio_chan_spec_ext_info hmc5983_ext_info[] = { IIO_ENUM("meas_conf", true, &hmc5983_meas_conf_enum), IIO_ENUM_AVAILABLE("meas_conf", &hmc5983_meas_conf_enum), - { }, + IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, hmc5843_get_mount_matrix), + { } }; static @@ -635,6 +637,11 @@ int hmc5843_common_probe(struct device *dev, struct regmap *regmap, data->variant = &hmc5843_chip_info_tbl[id]; mutex_init(&data->lock); + ret = iio_read_mount_matrix(dev, "mount-matrix", + &data->orientation); + if (ret) + return ret; + indio_dev->dev.parent = dev; indio_dev->name = name; indio_dev->info = &hmc5843_info; |