Use v4l2_subdev_get_fwnode_pad_1_to_1() as the get_fwnode_pad operation.
The video mux maps fwnode port numbers and pad indexes 1:1.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
 static const struct media_entity_operations video_mux_ops = {
        .link_setup = video_mux_link_setup,
        .link_validate = v4l2_subdev_link_validate,
+       .get_fwnode_pad = v4l2_subdev_get_fwnode_pad_1_to_1,
 };
 
 static int video_mux_s_stream(struct v4l2_subdev *sd, int enable)