drm/rockchip: Shutdown all crtcs when unbinding drm

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1491481885-13775-12-git-send-email-jeffy.chen@rock-chips.com

drivers/gpu/drm/rockchip/rockchip_drm_drv.c

@@ -199,6 +199,7 @@ static void rockchip_drm_unbind(struct device *dev)
 	rockchip_drm_fbdev_fini(drm_dev);
 	drm_kms_helper_poll_fini(drm_dev);
 
+	drm_atomic_helper_shutdown(drm_dev);
 	drm_vblank_cleanup(drm_dev);
 	component_unbind_all(dev, drm_dev);
 	drm_mode_config_cleanup(drm_dev);