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video/backlight: LP8788 needs PWM 

The LP8788 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>
Acked-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Peter Griffin 2014-04-24 13:28:25 +01:00 committed by Lee Jones
parent 91a57dc134
commit 513199368a
1 changed files with 1 additions and 1 deletions
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2
drivers/video/backlight/Kconfig
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@ -393,7 +393,7 @@ config BACKLIGHT_LP855X
config BACKLIGHT_LP8788
tristate "Backlight driver for TI LP8788 MFD"
depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788
depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788 && PWM
help
This supports TI LP8788 backlight driver.