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 <[email protected]>
Signed-off-by: Peter Griffin <[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 5a3eb2e..4791af7 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -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
-- 
1.7.9.5

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