drm: modify driver probe time if CONFIG_VIDEO_REVERSE_IMAGE=y

Signed-off-by: Jianwei Fan <jianwei.fan@rock-chips.com>
Change-Id: I15eefd044dd8b848bdf0162639b3fedfa0d18722

drivers/gpu/drm/drm_drv.c

@@ -1070,5 +1070,9 @@ error:
 	return ret;
 }
 
+#ifdef CONFIG_VIDEO_REVERSE_IMAGE
+fs_initcall(drm_core_init);
+#else
 module_init(drm_core_init);
+#endif
 module_exit(drm_core_exit);

drivers/gpu/drm/rockchip/rockchip_drm_drv.c

@@ -1977,7 +1977,11 @@ static void __exit rockchip_drm_fini(void)
 				    num_rockchip_sub_drivers);
 }
 
+#ifdef CONFIG_VIDEO_REVERSE_IMAGE
+fs_initcall(rockchip_drm_init);
+#else
 module_init(rockchip_drm_init);
+#endif
 module_exit(rockchip_drm_fini);
 
 MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>");