CIO2_PAD_SOURCE
format = v4l2_subdev_state_get_format(state, CIO2_PAD_SOURCE);
if (fmt->pad == CIO2_PAD_SOURCE)
mbus = v4l2_subdev_state_get_format(sd_state, CIO2_PAD_SOURCE);
q->subdev_pads[CIO2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
&subdev->entity, CIO2_PAD_SOURCE, &vdev->entity, 0,