EDID_TIMING_VFREQ_SHIFT 2133 drivers/gpu/drm/drm_edid.c 		>> EDID_TIMING_VFREQ_SHIFT;
EDID_TIMING_VFREQ_SHIFT   56 include/drm/drm_edid.h #define EDID_TIMING_VFREQ_MASK   (0x3f << EDID_TIMING_VFREQ_SHIFT)