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 Cc: Milo Kim milo.kim@ti.com Cc: Jingoo Han jg1.han@samsung.com Cc: Bryan Wu cooloney@gmail.com Cc: Lee Jones lee.jones@linaro.org Cc: Jean-Christophe Plagniol-Villard plagnioj@jcrosoft.com Cc: Tomi Valkeinen tomi.valkeinen@ti.com Cc: linux-fbdev@vger.kernel.org --- drivers/video/backlight/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 4791af7..ac6bc28 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -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.