[PATCH] backlight: LOCOMO Backlight Driver updates

Add backlight intensity control to the LOCOMO lcd/backlight driver using the
backlight class and add basic power management support.

This is a reimplementation and improvement of patches by John Lenz and Pavel
Machek

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-arm/hardware/locomo.h b/include/asm-arm/hardware/locomo.h
index 5f10048ec54e..22dfb1737768 100644
--- a/include/asm-arm/hardware/locomo.h
+++ b/include/asm-arm/hardware/locomo.h
@@ -111,6 +111,8 @@
 #define LOCOMO_ALS              0x00    /* Adjust light cycle */
 #define LOCOMO_ALD              0x04    /* Adjust light duty */
 
+#define LOCOMO_ALC_EN           0x8000
+
 /* Backlight controller: TFT signal */
 #define LOCOMO_BACKLIGHT        0x38
 #define LOCOMO_TC               0x00            /* TFT control signal */
@@ -203,4 +205,7 @@ void locomo_gpio_write(struct locomo_dev *ldev, unsigned int bits, unsigned int
 /* M62332 control function */
 void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel);
 
+/* Frontlight control */
+void locomo_frontlight_set(struct locomo_dev *dev, int duty, int vr, int bpwf);
+
 #endif