DISPPLANE_GAMMA_ENABLE  626 drivers/gpu/drm/gma500/psb_intel_reg.h #define DISPPLANE_GAMMA_ENABLE			(1 << 30)
DISPPLANE_GAMMA_ENABLE 6221 drivers/gpu/drm/i915/i915_reg.h #define   DISPPLANE_GAMMA_ENABLE		(1 << 30)
DISPPLANE_GAMMA_ENABLE  396 drivers/video/fbdev/intelfb/intelfbhw.h #define DISPPLANE_GAMMA_ENABLE		(1<<30)