linux-kernel - [PATCH 12/13] video/backlight: LP855X needs PWM

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Date:	Thu, 24 Apr 2014 13:28:28 +0100
From:	Peter Griffin <peter.griffin@...aro.org>
To:	linux-kernel@...r.kernel.org
Cc:	linaro-kernel@...ts.linaro.org, Arnd Bergmann <arnd@...db.de>,
	Peter Griffin <peter.griffin@...aro.org>,
	Jingoo Han <jg1.han@...sung.com>, Milo Kim <milo.kim@...com>,
	Bryan Wu <cooloney@...il.com>,
	Lee Jones <lee.jones@...aro.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	linux-fbdev@...r.kernel.org
Subject: [PATCH 12/13] video/backlight: LP855X needs PWM

From: Arnd Bergmann <arnd@...db.de>

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@...db.de>
Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
Cc: Jingoo Han <jg1.han@...sung.com>
Cc: Milo Kim <milo.kim@...com>
Cc: Bryan Wu <cooloney@...il.com>
Cc: Lee Jones <lee.jones@...aro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@...com>
Cc: linux-fbdev@...r.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 5675511..5d44905 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -386,7 +386,7 @@ config BACKLIGHT_LM3639
 
 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.
-- 
1.7.9.5

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