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 <[email protected]>
Signed-off-by: Peter Griffin <[email protected]>
Cc: Milo Kim <[email protected]>
Cc: Jingoo Han <[email protected]>
Cc: Bryan Wu <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: Jean-Christophe Plagniol-Villard <[email protected]>
Cc: Tomi Valkeinen <[email protected]>
Cc: [email protected]
---
 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.
 
-- 
1.7.9.5

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