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video/backlight: LM3630A needs PWM

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The LM3630A driver cannot be successfully built if we don't
enable the PWM subsystem. This patch makes that dependency
explicit in Kconfig and prevents broken randconfig builds.

Based on Arnd Bergmann patch but split out into seperate
commits per driver based on feedback.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Peter Griffin 2014-04-24 13:28:24 +01:00 committed by Lee Jones
parent d1db0eea85
commit 05c4cc0f95
1 changed files with 1 additions and 1 deletions
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2
drivers/video/backlight/Kconfig
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@ -370,7 +370,7 @@ config BACKLIGHT_AAT2870
config BACKLIGHT_LM3630A
tristate "Backlight Driver for LM3630A"
depends on BACKLIGHT_CLASS_DEVICE && I2C
depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
select REGMAP_I2C
help
This supports TI LM3630A Backlight Driver