Symbol: MIN_VSYNC_PLUS_BP
drivers/gpu/drm/drm_modes.c
928
tmp1 = (1000000 - MIN_VSYNC_PLUS_BP * vfieldrate_rqd) / 500;
drivers/gpu/drm/drm_modes.c
936
vsync_plus_bp = MIN_VSYNC_PLUS_BP * hfreq_est / 1000;