SDVO_CMD_GET_SUPPORTED_POWER_STATES  519 drivers/gpu/drm/gma500/psb_intel_sdvo_regs.h #define SDVO_CMD_GET_SUPPORTED_POWER_STATES		0x2a
SDVO_CMD_GET_SUPPORTED_POWER_STATES  530 drivers/gpu/drm/i915/display/intel_sdvo_regs.h #define SDVO_CMD_GET_SUPPORTED_POWER_STATES		0x2a