SDVO_CMD_GET_CONTRAST  651 drivers/gpu/drm/gma500/psb_intel_sdvo_regs.h #define SDVO_CMD_GET_CONTRAST				0x5f
SDVO_CMD_GET_CONTRAST  662 drivers/gpu/drm/i915/display/intel_sdvo_regs.h #define SDVO_CMD_GET_CONTRAST				0x5f