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-rw-r--r--drivers/video/backlight/88pm860x_bl.c5
-rw-r--r--drivers/video/backlight/Kconfig36
-rw-r--r--drivers/video/backlight/aat2870_bl.c15
-rw-r--r--drivers/video/backlight/adp5520_bl.c3
-rw-r--r--drivers/video/backlight/adp8860_bl.c3
-rw-r--r--drivers/video/backlight/adp8870_bl.c3
-rw-r--r--drivers/video/backlight/ams369fg06.c6
-rw-r--r--drivers/video/backlight/apple_bl.c5
-rw-r--r--drivers/video/backlight/arcxcnn_bl.c13
-rw-r--r--drivers/video/backlight/backlight.c3
-rw-r--r--drivers/video/backlight/bd6107.c5
-rw-r--r--drivers/video/backlight/corgi_lcd.c6
-rw-r--r--drivers/video/backlight/cr_bllcd.c16
-rw-r--r--drivers/video/backlight/da903x_bl.c5
-rw-r--r--drivers/video/backlight/da9052_bl.c7
-rw-r--r--drivers/video/backlight/ep93xx_bl.c5
-rw-r--r--drivers/video/backlight/generic_bl.c6
-rw-r--r--drivers/video/backlight/gpio_backlight.c5
-rw-r--r--drivers/video/backlight/hx8357.c3
-rw-r--r--drivers/video/backlight/ili922x.c6
-rw-r--r--drivers/video/backlight/ili9320.c5
-rw-r--r--drivers/video/backlight/ili9320.h5
-rw-r--r--drivers/video/backlight/ipaq_micro_bl.c4
-rw-r--r--drivers/video/backlight/jornada720_bl.c6
-rw-r--r--drivers/video/backlight/jornada720_lcd.c6
-rw-r--r--drivers/video/backlight/kb3886_bl.c6
-rw-r--r--drivers/video/backlight/l4f00242t03.c5
-rw-r--r--drivers/video/backlight/lcd.c13
-rw-r--r--drivers/video/backlight/lm3533_bl.c6
-rw-r--r--drivers/video/backlight/lm3630a_bl.c159
-rw-r--r--drivers/video/backlight/lm3639_bl.c6
-rw-r--r--drivers/video/backlight/lms283gf05.c5
-rw-r--r--drivers/video/backlight/lms501kf03.c6
-rw-r--r--drivers/video/backlight/locomolcd.c2
-rw-r--r--drivers/video/backlight/lp855x_bl.c6
-rw-r--r--drivers/video/backlight/lp8788_bl.c6
-rw-r--r--drivers/video/backlight/ltv350qv.c5
-rw-r--r--drivers/video/backlight/ltv350qv.h5
-rw-r--r--drivers/video/backlight/lv5207lp.c5
-rw-r--r--drivers/video/backlight/max8925_bl.c5
-rw-r--r--drivers/video/backlight/omap1_bl.c15
-rw-r--r--drivers/video/backlight/ot200_bl.c5
-rw-r--r--drivers/video/backlight/pandora_bl.c5
-rw-r--r--drivers/video/backlight/pcf50633-backlight.c11
-rw-r--r--drivers/video/backlight/platform_lcd.c6
-rw-r--r--drivers/video/backlight/pm8941-wled.c10
-rw-r--r--drivers/video/backlight/pwm_bl.c20
-rw-r--r--drivers/video/backlight/sky81452-backlight.c13
-rw-r--r--drivers/video/backlight/tdo24m.c5
-rw-r--r--drivers/video/backlight/tosa_bl.c6
-rw-r--r--drivers/video/backlight/tosa_lcd.c6
-rw-r--r--drivers/video/backlight/vgg2432a4.c5
-rw-r--r--drivers/video/backlight/wm831x_bl.c5
53 files changed, 214 insertions, 320 deletions
diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index 51e0c4be08df..20d96a5ac384 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight driver for Marvell Semiconductor 88PM8606
*
* Copyright (C) 2009 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.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/init.h>
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 71ee978c848f..8b081d61773e 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -1,14 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-only
#
# Backlight & LCD drivers configuration
#
-menuconfig BACKLIGHT_LCD_SUPPORT
- bool "Backlight & LCD device support"
- help
- Enable this to be able to choose the drivers for controlling the
- backlight and the LCD panel on some platforms, for example on PDAs.
-
-if BACKLIGHT_LCD_SUPPORT
+menu "Backlight & LCD device support"
#
# LCD
@@ -199,7 +194,6 @@ config BACKLIGHT_IPAQ_MICRO
config BACKLIGHT_LM3533
tristate "Backlight Driver for LM3533"
- depends on BACKLIGHT_CLASS_DEVICE
depends on MFD_LM3533
help
Say Y to enable the backlight driver for National Semiconductor / TI
@@ -323,7 +317,7 @@ config BACKLIGHT_ADP5520
config BACKLIGHT_ADP8860
tristate "Backlight Driver for ADP8860/ADP8861/ADP8863 using WLED"
- depends on BACKLIGHT_CLASS_DEVICE && I2C
+ depends on I2C
select NEW_LEDS
select LEDS_CLASS
help
@@ -335,7 +329,7 @@ config BACKLIGHT_ADP8860
config BACKLIGHT_ADP8870
tristate "Backlight Driver for ADP8870 using WLED"
- depends on BACKLIGHT_CLASS_DEVICE && I2C
+ depends on I2C
select NEW_LEDS
select LEDS_CLASS
help
@@ -353,28 +347,28 @@ config BACKLIGHT_88PM860X
config BACKLIGHT_PCF50633
tristate "Backlight driver for NXP PCF50633 MFD"
- depends on BACKLIGHT_CLASS_DEVICE && MFD_PCF50633
+ depends on MFD_PCF50633
help
If you have a backlight driven by a NXP PCF50633 MFD, say Y here to
enable its driver.
config BACKLIGHT_AAT2870
tristate "AnalogicTech AAT2870 Backlight"
- depends on BACKLIGHT_CLASS_DEVICE && MFD_AAT2870_CORE
+ depends on MFD_AAT2870_CORE
help
If you have a AnalogicTech AAT2870 say Y to enable the
backlight driver.
config BACKLIGHT_LM3630A
tristate "Backlight Driver for LM3630A"
- depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
+ depends on I2C && PWM
select REGMAP_I2C
help
This supports TI LM3630A Backlight Driver
config BACKLIGHT_LM3639
tristate "Backlight Driver for LM3639"
- depends on BACKLIGHT_CLASS_DEVICE && I2C
+ depends on I2C
select REGMAP_I2C
select NEW_LEDS
select LEDS_CLASS
@@ -383,20 +377,20 @@ config BACKLIGHT_LM3639
config BACKLIGHT_LP855X
tristate "Backlight driver for TI LP855X"
- depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
+ depends on I2C && PWM
help
This supports TI LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
LP8557 backlight driver.
config BACKLIGHT_LP8788
tristate "Backlight driver for TI LP8788 MFD"
- depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788 && PWM
+ depends on MFD_LP8788 && PWM
help
This supports TI LP8788 backlight driver.
config BACKLIGHT_OT200
tristate "Backlight driver for ot200 visualisation device"
- depends on BACKLIGHT_CLASS_DEVICE && CS5535_MFGPT && GPIO_CS5535
+ depends on CS5535_MFGPT && GPIO_CS5535
help
To compile this driver as a module, choose M here: the module will be
called ot200_bl.
@@ -410,7 +404,7 @@ config BACKLIGHT_PANDORA
config BACKLIGHT_SKY81452
tristate "Backlight driver for SKY81452"
- depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+ depends on MFD_SKY81452
help
If you have a Skyworks SKY81452, say Y to enable the
backlight driver.
@@ -420,14 +414,14 @@ config BACKLIGHT_SKY81452
config BACKLIGHT_TPS65217
tristate "TPS65217 Backlight"
- depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
+ depends on MFD_TPS65217
help
If you have a Texas Instruments TPS65217 say Y to enable the
backlight driver.
config BACKLIGHT_AS3711
tristate "AS3711 Backlight"
- depends on BACKLIGHT_CLASS_DEVICE && MFD_AS3711
+ depends on MFD_AS3711
help
If you have an Austrian Microsystems AS3711 say Y to enable the
backlight driver.
@@ -466,4 +460,4 @@ config BACKLIGHT_RAVE_SP
endif # BACKLIGHT_CLASS_DEVICE
-endif # BACKLIGHT_LCD_SUPPORT
+endmenu
diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
index 50774e657700..a7af9adafad6 100644
--- a/drivers/video/backlight/aat2870_bl.c
+++ b/drivers/video/backlight/aat2870_bl.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/drivers/video/backlight/aat2870_bl.c
*
* Copyright (c) 2011, NVIDIA Corporation.
* Author: Jin Park <jinyoungp@nvidia.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/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index 5e38353b4423..0f63f76723a5 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Backlight driver for Analog Devices ADP5520/ADP5501 MFD PMICs
*
* Copyright 2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
*/
#include <linux/kernel.h>
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 85318236da2f..19968104fc47 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Backlight driver for Analog Devices ADP8860 Backlight Devices
*
* Copyright 2009-2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
diff --git a/drivers/video/backlight/adp8870_bl.c b/drivers/video/backlight/adp8870_bl.c
index 8d50e0299578..4c0032010cfe 100644
--- a/drivers/video/backlight/adp8870_bl.c
+++ b/drivers/video/backlight/adp8870_bl.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Backlight driver for Analog Devices ADP8870 Backlight Devices
*
* Copyright 2009-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c
index 5cca8ce45d4d..94ccb9042440 100644
--- a/drivers/video/backlight/ams369fg06.c
+++ b/drivers/video/backlight/ams369fg06.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ams369fg06 AMOLED LCD panel driver.
*
@@ -5,11 +6,6 @@
* Author: Jingoo Han <jg1.han@samsung.com>
*
* Derived from drivers/video/s6e63m0.c
- *
- * 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/backlight.h>
diff --git a/drivers/video/backlight/apple_bl.c b/drivers/video/backlight/apple_bl.c
index 6a34ab936726..c0d9339cff87 100644
--- a/drivers/video/backlight/apple_bl.c
+++ b/drivers/video/backlight/apple_bl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight Driver for Intel-based Apples
*
@@ -7,10 +8,6 @@
* Copyright (C) 2006 Felipe Alfaro Solana <felipe_alfaro @linuxmail.org>
* Copyright (C) 2007 Julien BLACHE <jb@jblache.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.
- *
* This driver triggers SMIs which cause the firmware to change the
* backlight brightness. This is icky in many ways, but it's impractical to
* get at the firmware code in order to figure out what it's actually doing.
diff --git a/drivers/video/backlight/arcxcnn_bl.c b/drivers/video/backlight/arcxcnn_bl.c
index dec790de72ff..7b1c0a0e6cad 100644
--- a/drivers/video/backlight/arcxcnn_bl.c
+++ b/drivers/video/backlight/arcxcnn_bl.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight driver for ArcticSand ARC_X_C_0N_0N Devices
*
* Copyright 2016 ArcticSand, Inc.
* Author : Brian Dodge <bdodge@arcticsand.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, see <http://www.gnu.org/licenses/>.
*/
#include <linux/backlight.h>
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index deb824bef6e2..5dc07106a59e 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight Lowlevel Control Abstraction
*
@@ -46,7 +47,7 @@ static int fb_notifier_callback(struct notifier_block *self,
int fb_blank = 0;
/* If we aren't interested in this event, skip it immediately ... */
- if (event != FB_EVENT_BLANK && event != FB_EVENT_CONBLANK)
+ if (event != FB_EVENT_BLANK)
return 0;
bd = container_of(self, struct backlight_device, fb_notif);
diff --git a/drivers/video/backlight/bd6107.c b/drivers/video/backlight/bd6107.c
index fdb2f7e2c6b5..d344fb03cb86 100644
--- a/drivers/video/backlight/bd6107.c
+++ b/drivers/video/backlight/bd6107.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ROHM Semiconductor BD6107 LED Driver
*
* Copyright (C) 2013 Ideas on board SPRL
*
* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.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/backlight.h>
diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c
index f5574060f9c8..68f7592c5060 100644
--- a/drivers/video/backlight/corgi_lcd.c
+++ b/drivers/video/backlight/corgi_lcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* LCD/Backlight Driver for Sharp Zaurus Handhelds (various models)
*
@@ -8,11 +9,6 @@
* Copyright (c) 2008 Marvell International Ltd.
* Converted to SPI device based LCD/Backlight device driver
* by Eric Miao <eric.miao@marvell.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/video/backlight/cr_bllcd.c b/drivers/video/backlight/cr_bllcd.c
index 3e3880fc8c8e..4624b7b7c6a6 100644
--- a/drivers/video/backlight/cr_bllcd.c
+++ b/drivers/video/backlight/cr_bllcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) Intel Corp. 2007.
* All Rights Reserved.
@@ -6,21 +7,6 @@
* develop this driver.
*
* This file is part of the Carillo Ranch video subsystem driver.
- * The Carillo Ranch video subsystem driver 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.
- *
- * The Carillo Ranch video subsystem driver 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 driver; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
* Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
diff --git a/drivers/video/backlight/da903x_bl.c b/drivers/video/backlight/da903x_bl.c
index f793738f06fb..62540e4bdedb 100644
--- a/drivers/video/backlight/da903x_bl.c
+++ b/drivers/video/backlight/da903x_bl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight driver for Dialog Semiconductor DA9030/DA9034
*
@@ -6,10 +7,6 @@
*
* Copyright (C) 2006-2008 Marvell International Ltd.
* Eric Miao <eric.miao@marvell.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/kernel.h>
diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c
index 49035c12739a..882359dd288c 100644
--- a/drivers/video/backlight/da9052_bl.c
+++ b/drivers/video/backlight/da9052_bl.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Backlight Driver for Dialog DA9052 PMICs
*
* Copyright(c) 2012 Dialog Semiconductor Ltd.
*
* Author: David Dajun Chen <dchen@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/backlight.h>
diff --git a/drivers/video/backlight/ep93xx_bl.c b/drivers/video/backlight/ep93xx_bl.c
index 0067931821c6..4149e0b2f83c 100644
--- a/drivers/video/backlight/ep93xx_bl.c
+++ b/drivers/video/backlight/ep93xx_bl.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for the Cirrus EP93xx lcd backlight
*
* Copyright (c) 2010 H Hartley Sweeten <hsweeten@visionengravers.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 driver controls the pulse width modulated brightness control output,
* BRIGHT, on the Cirrus EP9307, EP9312, and EP9315 processors.
*/
diff --git a/drivers/video/backlight/generic_bl.c b/drivers/video/backlight/generic_bl.c
index 4dea91acea13..8fe63dbc8590 100644
--- a/drivers/video/backlight/generic_bl.c
+++ b/drivers/video/backlight/generic_bl.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Generic Backlight Driver
*
* Copyright (c) 2004-2008 Richard Purdie
- *
- * 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/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index e470da95d806..b9300f3e1ee6 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* gpio_backlight.c - Simple GPIO-controlled backlight
- *
- * 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/backlight.h>
diff --git a/drivers/video/backlight/hx8357.c b/drivers/video/backlight/hx8357.c
index 23f50b92a930..9b50bc96e00f 100644
--- a/drivers/video/backlight/hx8357.c
+++ b/drivers/video/backlight/hx8357.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for the Himax HX-8357 LCD Controller
*
* Copyright 2012 Free Electrons
- *
- * Licensed under the GPLv2 or later.
*/
#include <linux/delay.h>
diff --git a/drivers/video/backlight/ili922x.c b/drivers/video/backlight/ili922x.c
index 2b6c6aaf4e14..9c5aa3fbb284 100644
--- a/drivers/video/backlight/ili922x.c
+++ b/drivers/video/backlight/ili922x.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* (C) Copyright 2008
* Stefano Babic, DENX Software Engineering, sbabic@denx.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 driver implements a lcd device for the ILITEK 922x display
* controller. The interface to the display is SPI and the display's
* memory is cyclically updated over the RGB interface.
diff --git a/drivers/video/backlight/ili9320.c b/drivers/video/backlight/ili9320.c
index 2cf39e6d519d..168ac79523d7 100644
--- a/drivers/video/backlight/ili9320.c
+++ b/drivers/video/backlight/ili9320.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* drivers/video/backlight/ili9320.c
*
* ILI9320 LCD controller driver core.
@@ -5,10 +6,6 @@
* Copyright 2007 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Ben Dooks <ben@simtec.co.uk>
- *
- * 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/video/backlight/ili9320.h b/drivers/video/backlight/ili9320.h
index 42329e7aa9a8..fc59e389d59a 100644
--- a/drivers/video/backlight/ili9320.h
+++ b/drivers/video/backlight/ili9320.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/* drivers/video/backlight/ili9320.h
*
* ILI9320 LCD controller driver core.
@@ -6,10 +7,6 @@
* Ben Dooks <ben@simtec.co.uk>
*
* http://armlinux.simtec.co.uk/
- *
- * 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.
*/
/* Holder for register and value pairs. */
diff --git a/drivers/video/backlight/ipaq_micro_bl.c b/drivers/video/backlight/ipaq_micro_bl.c
index 347dc11d4ceb..1123f67c12b3 100644
--- a/drivers/video/backlight/ipaq_micro_bl.c
+++ b/drivers/video/backlight/ipaq_micro_bl.c
@@ -1,7 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
- * 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.
*
* iPAQ microcontroller backlight support
* Author : Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/video/backlight/jornada720_bl.c b/drivers/video/backlight/jornada720_bl.c
index 7e6ff5346892..f0385f9cf9da 100644
--- a/drivers/video/backlight/jornada720_bl.c
+++ b/drivers/video/backlight/jornada720_bl.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Backlight driver for HP Jornada 700 series (710/720/728)
* Copyright (C) 2006-2009 Kristoffer Ericson <kristoffer.ericson@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 or any later version as published by the Free Software Foundation.
- *
*/
#include <linux/backlight.h>
diff --git a/drivers/video/backlight/jornada720_lcd.c b/drivers/video/backlight/jornada720_lcd.c
index dfa0fa0d5c78..6796a7c2db25 100644
--- a/drivers/video/backlight/jornada720_lcd.c
+++ b/drivers/video/backlight/jornada720_lcd.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* LCD driver for HP Jornada 700 series (710/720/728)
* Copyright (C) 2006-2009 Kristoffer Ericson <kristoffer.ericson@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 or any later version as published by the Free Software Foundation.
- *
*/
#include <linux/device.h>
diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 96312c3afc07..1dfe13c18925 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight Driver for the KB3886 Backlight
*
* Copyright (c) 2007-2008 Claudio Nieder
*
* Based on corgi_bl.c by Richard Purdie and kb3886 driver by Robert Woerle
- *
- * 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/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index e6054e2492c5..8554b4aa980c 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* l4f00242t03.c -- support for Epson L4F00242T03 LCD
*
@@ -5,10 +6,6 @@
*
* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
* Inspired by Marek Vasut work in l4f00242t03.c
- *
- * 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) KBUILD_MODNAME ": " fmt
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index 4b40c6a4d441..d6b653aa4ee9 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* LCD Lowlevel Control Abstraction
*
@@ -29,18 +30,6 @@ static int fb_notifier_callback(struct notifier_block *self,
struct lcd_device *ld;
struct fb_event *evdata = data;
- /* If we aren't interested in this event, skip it immediately ... */
- switch (event) {
- case FB_EVENT_BLANK:
- case FB_EVENT_MODE_CHANGE:
- case FB_EVENT_MODE_CHANGE_ALL:
- case FB_EARLY_EVENT_BLANK:
- case FB_R_EARLY_EVENT_BLANK:
- break;
- default:
- return 0;
- }
-
ld = container_of(self, struct lcd_device, fb_notif);
if (!ld->ops)
return 0;
diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index 0e2337f367b6..ee09d1bd02b9 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* lm3533-bl.c -- LM3533 Backlight 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/module.h>
diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 2030a6b77a09..b04b35d007a2 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Simple driver for Texas Instruments LM3630A Backlight driver chip
* Copyright (C) 2012 Texas Instruments
-*
-* 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/slab.h>
@@ -35,6 +31,14 @@
#define REG_MAX 0x50
#define INT_DEBOUNCE_MSEC 10
+
+#define LM3630A_BANK_0 0
+#define LM3630A_BANK_1 1
+
+#define LM3630A_NUM_SINKS 2
+#define LM3630A_SINK_0 0
+#define LM3630A_SINK_1 1
+
struct lm3630a_chip {
struct device *dev;
struct delayed_work work;
@@ -201,7 +205,7 @@ static int lm3630a_bank_a_update_status(struct backlight_device *bl)
LM3630A_LEDA_ENABLE, LM3630A_LEDA_ENABLE);
if (ret < 0)
goto out_i2c_err;
- return bl->props.brightness;
+ return 0;
out_i2c_err:
dev_err(pchip->dev, "i2c failed to access\n");
@@ -278,7 +282,7 @@ static int lm3630a_bank_b_update_status(struct backlight_device *bl)
LM3630A_LEDB_ENABLE, LM3630A_LEDB_ENABLE);
if (ret < 0)
goto out_i2c_err;
- return bl->props.brightness;
+ return 0;
out_i2c_err:
dev_err(pchip->dev, "i2c failed to access REG_CTRL\n");
@@ -329,15 +333,17 @@ static const struct backlight_ops lm3630a_bank_b_ops = {
static int lm3630a_backlight_register(struct lm3630a_chip *pchip)
{
- struct backlight_properties props;
struct lm3630a_platform_data *pdata = pchip->pdata;
+ struct backlight_properties props;
+ const char *label;
props.type = BACKLIGHT_RAW;
if (pdata->leda_ctrl != LM3630A_LEDA_DISABLE) {
props.brightness = pdata->leda_init_brt;
props.max_brightness = pdata->leda_max_brt;
+ label = pdata->leda_label ? pdata->leda_label : "lm3630a_leda";
pchip->bleda =
- devm_backlight_device_register(pchip->dev, "lm3630a_leda",
+ devm_backlight_device_register(pchip->dev, label,
pchip->dev, pchip,
&lm3630a_bank_a_ops, &props);
if (IS_ERR(pchip->bleda))
@@ -348,8 +354,9 @@ static int lm3630a_backlight_register(struct lm3630a_chip *pchip)
(pdata->ledb_ctrl != LM3630A_LEDB_ON_A)) {
props.brightness = pdata->ledb_init_brt;
props.max_brightness = pdata->ledb_max_brt;
+ label = pdata->ledb_label ? pdata->ledb_label : "lm3630a_ledb";
pchip->bledb =
- devm_backlight_device_register(pchip->dev, "lm3630a_ledb",
+ devm_backlight_device_register(pchip->dev, label,
pchip->dev, pchip,
&lm3630a_bank_b_ops, &props);
if (IS_ERR(pchip->bledb))
@@ -364,6 +371,123 @@ static const struct regmap_config lm3630a_regmap = {
.max_register = REG_MAX,
};
+static int lm3630a_parse_led_sources(struct fwnode_handle *node,
+ int default_led_sources)
+{
+ u32 sources[LM3630A_NUM_SINKS];
+ int ret, num_sources, i;
+
+ num_sources = fwnode_property_read_u32_array(node, "led-sources", NULL,
+ 0);
+ if (num_sources < 0)
+ return default_led_sources;
+ else if (num_sources > ARRAY_SIZE(sources))
+ return -EINVAL;
+
+ ret = fwnode_property_read_u32_array(node, "led-sources", sources,
+ num_sources);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < num_sources; i++) {
+ if (sources[i] < LM3630A_SINK_0 || sources[i] > LM3630A_SINK_1)
+ return -EINVAL;
+
+ ret |= BIT(sources[i]);
+ }
+
+ return ret;
+}
+
+static int lm3630a_parse_bank(struct lm3630a_platform_data *pdata,
+ struct fwnode_handle *node, int *seen_led_sources)
+{
+ int led_sources, ret;
+ const char *label;
+ u32 bank, val;
+ bool linear;
+
+ ret = fwnode_property_read_u32(node, "reg", &bank);
+ if (ret)
+ return ret;
+
+ if (bank < LM3630A_BANK_0 || bank > LM3630A_BANK_1)
+ return -EINVAL;
+
+ led_sources = lm3630a_parse_led_sources(node, BIT(bank));
+ if (led_sources < 0)
+ return led_sources;
+
+ if (*seen_led_sources & led_sources)
+ return -EINVAL;
+
+ *seen_led_sources |= led_sources;
+
+ linear = fwnode_property_read_bool(node,
+ "ti,linear-mapping-mode");
+ if (bank) {
+ if (led_sources & BIT(LM3630A_SINK_0) ||
+ !(led_sources & BIT(LM3630A_SINK_1)))
+ return -EINVAL;
+
+ pdata->ledb_ctrl = linear ?
+ LM3630A_LEDB_ENABLE_LINEAR :
+ LM3630A_LEDB_ENABLE;
+ } else {
+ if (!(led_sources & BIT(LM3630A_SINK_0)))
+ return -EINVAL;
+
+ pdata->leda_ctrl = linear ?
+ LM3630A_LEDA_ENABLE_LINEAR :
+ LM3630A_LEDA_ENABLE;
+
+ if (led_sources & BIT(LM3630A_SINK_1))
+ pdata->ledb_ctrl = LM3630A_LEDB_ON_A;
+ }
+
+ ret = fwnode_property_read_string(node, "label", &label);
+ if (!ret) {
+ if (bank)
+ pdata->ledb_label = label;
+ else
+ pdata->leda_label = label;
+ }
+
+ ret = fwnode_property_read_u32(node, "default-brightness",
+ &val);
+ if (!ret) {
+ if (bank)
+ pdata->ledb_init_brt = val;
+ else
+ pdata->leda_init_brt = val;
+ }
+
+ ret = fwnode_property_read_u32(node, "max-brightness", &val);
+ if (!ret) {
+ if (bank)
+ pdata->ledb_max_brt = val;
+ else
+ pdata->leda_max_brt = val;
+ }
+
+ return 0;
+}
+
+static int lm3630a_parse_node(struct lm3630a_chip *pchip,
+ struct lm3630a_platform_data *pdata)
+{
+ int ret = -ENODEV, seen_led_sources = 0;
+ struct fwnode_handle *node;
+
+ device_for_each_child_node(pchip->dev, node) {
+ ret = lm3630a_parse_bank(pdata, node, &seen_led_sources);
+ if (ret)
+ return ret;
+ }
+
+ return ret;
+}
+
static int lm3630a_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -396,13 +520,18 @@ static int lm3630a_probe(struct i2c_client *client,
GFP_KERNEL);
if (pdata == NULL)
return -ENOMEM;
+
/* default values */
- pdata->leda_ctrl = LM3630A_LEDA_ENABLE;
- pdata->ledb_ctrl = LM3630A_LEDB_ENABLE;
pdata->leda_max_brt = LM3630A_MAX_BRIGHTNESS;
pdata->ledb_max_brt = LM3630A_MAX_BRIGHTNESS;
pdata->leda_init_brt = LM3630A_MAX_BRIGHTNESS;
pdata->ledb_init_brt = LM3630A_MAX_BRIGHTNESS;
+
+ rval = lm3630a_parse_node(pchip, pdata);
+ if (rval) {
+ dev_err(&client->dev, "fail : parse node\n");
+ return rval;
+ }
}
pchip->pdata = pdata;
@@ -470,11 +599,17 @@ static const struct i2c_device_id lm3630a_id[] = {
{}
};
+static const struct of_device_id lm3630a_match_table[] = {
+ { .compatible = "ti,lm3630a", },
+ { },
+};
+
MODULE_DEVICE_TABLE(i2c, lm3630a_id);
static struct i2c_driver lm3630a_i2c_driver = {
.driver = {
.name = LM3630A_NAME,
+ .of_match_table = lm3630a_match_table,
},
.probe = lm3630a_probe,
.remove = lm3630a_remove,
diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c
index 086611c7bc03..48c04155a5f9 100644
--- a/drivers/video/backlight/lm3639_bl.c
+++ b/drivers/video/backlight/lm3639_bl.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Simple driver for Texas Instruments LM3639 Backlight + Flash LED driver chip
* Copyright (C) 2012 Texas Instruments
-*
-* 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/slab.h>
diff --git a/drivers/video/backlight/lms283gf05.c b/drivers/video/backlight/lms283gf05.c
index 4237aaa7f269..35bc012b22cc 100644
--- a/drivers/video/backlight/lms283gf05.c
+++ b/drivers/video/backlight/lms283gf05.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* lms283gf05.c -- support for Samsung LMS283GF05 LCD
*
* Copyright (c) 2009 Marek Vasut <marek.vasut@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/device.h>
diff --git a/drivers/video/backlight/lms501kf03.c b/drivers/video/backlight/lms501kf03.c
index 8aa3e7662496..8ae32e3573c1 100644
--- a/drivers/video/backlight/lms501kf03.c
+++ b/drivers/video/backlight/lms501kf03.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* lms501kf03 TFT LCD panel driver.
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* Author: Jingoo Han <jg1.han@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.
*/
#include <linux/backlight.h>
diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c
index 6c3ec4259a60..cdc02e04f89d 100644
--- a/drivers/video/backlight/locomolcd.c
+++ b/drivers/video/backlight/locomolcd.c
@@ -1,9 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight control code for Sharp Zaurus SL-5500
*
* Copyright 2005 John Lenz <lenz@cs.wisc.edu>
* Maintainer: Pavel Machek <pavel@ucw.cz> (unless John wants to :-)
- * GPL v2
*
* This driver assumes single CPU. That's okay, because collie is
* slightly old hardware, and no one is going to retrofit second CPU to
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index 73612485ed07..f68920131a4a 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TI LP855x Backlight Driver
*
* Copyright (C) 2011 Texas Instruments
- *
- * 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/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c
index cf869ec90cce..ba42f3fe0c73 100644
--- a/drivers/video/backlight/lp8788_bl.c
+++ b/drivers/video/backlight/lp8788_bl.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TI LP8788 MFD - backlight 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/backlight.h>
diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c
index 885612cc1008..5cbf621e48bd 100644
--- a/drivers/video/backlight/ltv350qv.c
+++ b/drivers/video/backlight/ltv350qv.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Power control for Samsung LTV350QV Quarter VGA LCD Panel
*
* Copyright (C) 2006, 2007 Atmel 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/delay.h>
#include <linux/err.h>
diff --git a/drivers/video/backlight/ltv350qv.h b/drivers/video/backlight/ltv350qv.h
index 189112e3fc7a..c70890776a94 100644
--- a/drivers/video/backlight/ltv350qv.h
+++ b/drivers/video/backlight/ltv350qv.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Register definitions for Samsung LTV350QV Quarter VGA LCD Panel
*
* Copyright (C) 2006, 2007 Atmel 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.
*/
#ifndef __LTV350QV_H
#define __LTV350QV_H
diff --git a/drivers/video/backlight/lv5207lp.c b/drivers/video/backlight/lv5207lp.c
index 8ab7297b118a..c6ad73a784e2 100644
--- a/drivers/video/backlight/lv5207lp.c
+++ b/drivers/video/backlight/lv5207lp.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Sanyo LV5207LP LED Driver
*
* Copyright (C) 2013 Ideas on board SPRL
*
* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.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/backlight.h>
diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c
index f3aa6088f1d9..97cc260ff9d1 100644
--- a/drivers/video/backlight/max8925_bl.c
+++ b/drivers/video/backlight/max8925_bl.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight driver for Maxim MAX8925
*
* Copyright (C) 2009 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.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/init.h>
diff --git a/drivers/video/backlight/omap1_bl.c b/drivers/video/backlight/omap1_bl.c
index 546d94df21d5..74263021b1b3 100644
--- a/drivers/video/backlight/omap1_bl.c
+++ b/drivers/video/backlight/omap1_bl.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Backlight driver for OMAP based boards.
*
* Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
- *
- * This package 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 package 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 package; 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/video/backlight/ot200_bl.c b/drivers/video/backlight/ot200_bl.c
index 3acdb9f646ed..23ee7106c72a 100644
--- a/drivers/video/backlight/ot200_bl.c
+++ b/drivers/video/backlight/ot200_bl.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012 Bachmann electronic GmbH
* Christian Gmeiner <christian.gmeiner@gmail.com>
*
* Backlight driver for ot200 visualisation device from
* Bachmann electronic GmbH.
- *
- * 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/video/backlight/pandora_bl.c b/drivers/video/backlight/pandora_bl.c
index 9618766e3866..f946470ce9f6 100644
--- a/drivers/video/backlight/pandora_bl.c
+++ b/drivers/video/backlight/pandora_bl.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight driver for Pandora handheld.
* Pandora uses TWL4030 PWM0 -> TPS61161 combo for control backlight.
* Based on pwm_bl.c
*
* Copyright 2009,2012 GraÅžvydas Ignotas <notasas@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/video/backlight/pcf50633-backlight.c b/drivers/video/backlight/pcf50633-backlight.c
index 85bd573b6d15..540dd3380c81 100644
--- a/drivers/video/backlight/pcf50633-backlight.c
+++ b/drivers/video/backlight/pcf50633-backlight.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
* PCF50633 backlight device driver
- *
- * 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.
- *
- * 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/kernel.h>
diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c
index 872a3bf21faf..b2bfbf070200 100644
--- a/drivers/video/backlight/platform_lcd.c
+++ b/drivers/video/backlight/platform_lcd.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* drivers/video/backlight/platform_lcd.c
*
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* Generic platform-device LCD power control interface.
- *
- * 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/video/backlight/pm8941-wled.c b/drivers/video/backlight/pm8941-wled.c
index da6aab20fdcb..82b85725a22a 100644
--- a/drivers/video/backlight/pm8941-wled.c
+++ b/drivers/video/backlight/pm8941-wled.c
@@ -1,13 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2015, Sony Mobile Communications, AB.
- *
- * 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/kernel.h>
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 53b8ceea9bde..20d379ac8440 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/drivers/video/backlight/pwm_bl.c
*
* simple PWM based backlight control, board code has to setup
* 1) pin configuration so PWM waveforms can output
* 2) platform_data being correctly configured
- *
- * 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>
@@ -155,21 +152,6 @@ static const struct backlight_ops pwm_backlight_ops = {
#ifdef CONFIG_OF
#define PWM_LUMINANCE_SCALE 10000 /* luminance scale */
-/* An integer based power function */
-static u64 int_pow(u64 base, int exp)
-{
- u64 result = 1;
-
- while (exp) {
- if (exp & 1)
- result *= base;
- exp >>= 1;
- base *= base;
- }
-
- return result;
-}
-
/*
* CIE lightness to PWM conversion.
*
diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c
index d414c7a3acf5..2355f00f5773 100644
--- a/drivers/video/backlight/sky81452-backlight.c
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* sky81452-backlight.c SKY81452 backlight driver
*
* Copyright 2014 Skyworks Solutions Inc.
* Author : Gyungoh Yoo <jack.yoo@skyworksinc.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, see <http://www.gnu.org/licenses/>.
*/
#include <linux/backlight.h>
diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c
index e4bd63e9db6b..0de044dcafd5 100644
--- a/drivers/video/backlight/tdo24m.c
+++ b/drivers/video/backlight/tdo24m.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tdo24m - SPI-based drivers for Toppoly TDO24M series LCD panels
*
* Copyright (C) 2008 Marvell International Ltd.
* Eric Miao <eric.miao@marvell.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
- * publishhed by the Free Software Foundation.
*/
#include <linux/module.h>
diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
index 97067597e6bf..1275e815bd86 100644
--- a/drivers/video/backlight/tosa_bl.c
+++ b/drivers/video/backlight/tosa_bl.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* LCD / Backlight control code for Sharp SL-6000x (tosa)
*
* Copyright (c) 2005 Dirk Opfer
* Copyright (c) 2007,2008 Dmitry Baryshkov
- *
- * 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/video/backlight/tosa_lcd.c b/drivers/video/backlight/tosa_lcd.c
index 4dc5ee8debeb..65cb7578776f 100644
--- a/drivers/video/backlight/tosa_lcd.c
+++ b/drivers/video/backlight/tosa_lcd.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* LCD / Backlight control code for Sharp SL-6000x (tosa)
*
* Copyright (c) 2005 Dirk Opfer
* Copyright (c) 2007,2008 Dmitry Baryshkov
- *
- * 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/video/backlight/vgg2432a4.c b/drivers/video/backlight/vgg2432a4.c
index 242a9948f57f..9bf277ca4ae9 100644
--- a/drivers/video/backlight/vgg2432a4.c
+++ b/drivers/video/backlight/vgg2432a4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* drivers/video/backlight/vgg2432a4.c
*
* VGG2432A4 (ILI9320) LCD controller driver.
@@ -5,10 +6,6 @@
* Copyright 2007 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Ben Dooks <ben@simtec.co.uk>
- *
- * 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/video/backlight/wm831x_bl.c b/drivers/video/backlight/wm831x_bl.c
index 6eab0d6c262a..e55977d54c15 100644
--- a/drivers/video/backlight/wm831x_bl.c
+++ b/drivers/video/backlight/wm831x_bl.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Backlight driver for Wolfson Microelectronics WM831x PMICs
*
* Copyright 2009 Wolfson Microelectonics plc
- *
- * 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>