SDVO_DITHER_ON    678 drivers/gpu/drm/gma500/psb_intel_sdvo_regs.h # define SDVO_DITHER_ON						(1 << 0)
SDVO_DITHER_ON    689 drivers/gpu/drm/i915/display/intel_sdvo_regs.h # define SDVO_DITHER_ON						(1 << 0)