diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index daf1e57d9b266e9be3daf59e2c0e141351fa78d8..d4d74f9f2ff2a9c4e7c1d4c3c888a7e18496db5c 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -271,6 +271,8 @@ struct v4l2_subdev_video_ops {
 			struct v4l2_dv_timings *timings);
 	int (*enum_mbus_fmt)(struct v4l2_subdev *sd, unsigned int index,
 			     enum v4l2_mbus_pixelcode *code);
+	int (*enum_mbus_fsizes)(struct v4l2_subdev *sd,
+			     struct v4l2_frmsizeenum *fsize);
 	int (*g_mbus_fmt)(struct v4l2_subdev *sd,
 			  struct v4l2_mbus_framefmt *fmt);
 	int (*try_mbus_fmt)(struct v4l2_subdev *sd,