The LP855X 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.
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>
config BACKLIGHT_LP855X
tristate "Backlight driver for TI LP855X"
- depends on BACKLIGHT_CLASS_DEVICE && I2C
+ depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
help
This supports TI LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
LP8557 backlight driver.