From 8ee1c3db9075cb3211352e737e0feb98fd733b20 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 5 Aug 2008 19:37:25 +0100 Subject: Add Intel ACPI IGD OpRegion support This adds the support necessary for allowing ACPI backlight control to work on some newer Intel-based graphics systems. Tested on Thinkpad T61 and HP 2510p hardware. Signed-off-by: Matthew Garrett Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_reg.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/i915_reg.h') diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 477c64e6ba2d..43ad2cb8b9f5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -740,6 +740,7 @@ #define BLC_PWM_CTL 0x61254 #define BACKLIGHT_MODULATION_FREQ_SHIFT (17) #define BLC_PWM_CTL2 0x61250 /* 965+ only */ +#define BLM_COMBINATION_MODE (1 << 30) /* * This is the most significant 15 bits of the number of backlight cycles in a * complete cycle of the modulated backlight control. -- cgit v1.2.2