VT_VSYNC          554 drivers/video/fbdev/gbefb.c 	SET_GBE_FIELD(VT_VSYNC, VSYNC_ON, val, timing->vsync_start);
VT_VSYNC          555 drivers/video/fbdev/gbefb.c 	SET_GBE_FIELD(VT_VSYNC, VSYNC_OFF, val, timing->vsync_end);