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275827a7dcafe8e02ccd3f6c489bbdcf8ec532b4
linux/drivers/video/backlight
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Marek Vasut a958d14475 video: backlight: Drop maximum brightness override for brightness zero 
commit 33a5471f8d upstream.

The note in c2adda27d2 ("video: backlight: Add of_find_backlight helper
in backlight.c") says that gpio-backlight uses brightness as power state.
This has been fixed since in ec665b756e ("backlight: gpio-backlight:
Correct initial power state handling") and other backlight drivers do not
require this workaround. Drop the workaround.

This fixes the case where e.g. pwm-backlight can perfectly well be set to
brightness 0 on boot in DT, which without this patch leads to the display
brightness to be max instead of off.

Fixes: c2adda27d2 ("video: backlight: Add of_find_backlight helper in backlight.c")
Cc: <stable@vger.kernel.org> # 5.4+
Cc: <stable@vger.kernel.org> # 4.19.x: ec665b756e: backlight: gpio-backlight: Correct initial power state handling
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-18 19:17:17 +01:00
..
88pm860x_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
aat2870_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336
2019-06-05 17:37:07 +02:00
adp5520_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
adp8860_bl.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
adp8870_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
ams369fg06.c
backlight: ams369fg06: Drop GPIO include
2019-12-16 10:30:41 +00:00
apple_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
arcxcnn_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
as3711_bl.c
backlight: as3711_bl: Simplify update_status
2020-07-20 10:27:03 +01:00
backlight.c
video: backlight: Drop maximum brightness override for brightness zero
2021-11-18 19:17:17 +01:00
bd6107.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
corgi_lcd.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
cr_bllcd.c
video: backlight: cr_bllcd: Remove unused variable 'intensity'
2020-07-21 15:45:45 +01:00
da903x_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
da9052_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ep93xx_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
gpio_backlight.c
backlight: gpio_backlight: Simplify update_status()
2020-07-20 10:27:05 +01:00
hp680_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
hx8357.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 71
2019-05-24 17:36:47 +02:00
ili922x.c
backlight: ili922x: Add missing kerneldoc description for ili922x_reg_dump()'s arg
2020-07-06 08:11:42 +01:00
ili9320.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ili9320.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ipaq_micro_bl.c
backlight: ipaq_micro: Make structure micro_bl_props constant
2019-10-02 14:19:00 +01:00
jornada720_bl.c
backlight: journada720: Fix Wmisleading-indentation warning
2021-03-23 09:42:55 +00:00
jornada720_lcd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 73
2019-05-24 17:36:47 +02:00
kb3886_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
Kconfig
backlight: Kconfig whitespace and indentation cleanups
2021-06-01 13:36:24 +01:00
ktd253-backlight.c
backlight: ktd253: Stabilize backlight
2021-07-21 17:27:27 +01:00
l4f00242t03.c
backlight: l4f00242t03: Convert to GPIO descriptors
2020-04-29 08:52:15 +01:00
lcd.c
backlight: lcd: Add missing kerneldoc entry for 'struct device parent'
2020-07-06 08:11:41 +01:00
led_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
lm3533_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
lm3630a_bl.c
backlight: lm3630a: Convert to atomic PWM API and check for errors
2021-06-22 14:11:37 +01:00
lm3639_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
lms283gf05.c
backlight: lms283gf05: Convert to GPIO descriptors
2021-01-20 12:47:11 +00:00
lms501kf03.c
backlight: lms501kf03: Remove unused const variables
2020-07-06 08:11:41 +01:00
locomolcd.c
ARM: 9049/1: locomo: make locomo bus's remove callback return void
2021-02-01 19:44:30 +00:00
lp855x_bl.c
backlight: lp855x: Ensure regulators are disabled on probe failure
2020-04-28 08:09:36 +01:00
lp8788_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ltv350qv.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ltv350qv.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
lv5207lp.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
Makefile
backlight: rt4831: Adds support for Richtek RT4831 backlight
2021-05-19 15:52:25 +01:00
max8925_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
omap1_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 154
2019-05-30 11:26:33 -07:00
otm3225a.c
backlight: otm3225a: Add support for ORISE OTM3225A LCD SoC
2018-04-30 10:50:44 +01:00
pandora_bl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pcf50633-backlight.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 151
2019-05-30 11:26:28 -07:00
platform_lcd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pwm_bl.c
backlight: pwm_bl: Improve bootloader/kernel device handover
2021-08-19 10:59:03 +01:00
qcom-wled.c
video: backlight: qcom-wled: Add PMI8994 compatible
2021-05-27 17:23:43 +01:00
rave-sp-backlight.c
backlight: rave-sp: Leave initial state and register with correct device
2019-08-12 09:11:10 +01:00
rt4831-backlight.c
backlight: rt4831: Adds support for Richtek RT4831 backlight
2021-05-19 15:52:25 +01:00
sky81452-backlight.c
backlight: sky81452-backlight: Convert comma to semicolon
2021-01-20 12:54:14 +00:00
tdo24m.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 332
2019-06-05 17:37:06 +02:00
tosa_bl.c
backlight: tosa_bl: Include the right header
2020-09-08 12:31:19 +01:00
tosa_bl.h
video: backlight: tosa: Use GPIO lookup table
2019-11-11 09:29:56 +00:00
tosa_lcd.c
backlight: tosa_lcd: Include the right header
2020-09-08 12:30:02 +01:00
tps65217_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00
vgg2432a4.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
wm831x_bl.c
backlight: Use backlight_get_brightness() throughout
2020-07-20 10:27:06 +01:00