CRT_CTRL_VERTICAL_INTR_EN  200 drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c 	reg |= CRT_CTRL_VERTICAL_INTR_EN;
CRT_CTRL_VERTICAL_INTR_EN  211 drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c 	reg &= ~CRT_CTRL_VERTICAL_INTR_EN;