BRIGHTNESS_MASK    26 drivers/gpu/drm/gma500/cdv_intel_lvds.c #define BRIGHTNESS_MASK 0xFF
BRIGHTNESS_MASK    26 drivers/gpu/drm/gma500/mdfld_device.c #define BRIGHTNESS_MASK	0xFF
BRIGHTNESS_MASK    24 drivers/gpu/drm/gma500/psb_intel_lvds.c #define BRIGHTNESS_MASK 0xFF