SRU_PAD_SINK
format = v4l2_subdev_state_get_format(state, SRU_PAD_SINK);
if (fse->pad == SRU_PAD_SINK) {
case SRU_PAD_SINK:
format = v4l2_subdev_state_get_format(sd_state, SRU_PAD_SINK);
if (fmt->pad == SRU_PAD_SINK) {
input = v4l2_subdev_state_get_format(state, SRU_PAD_SINK);
input = v4l2_subdev_state_get_format(state, SRU_PAD_SINK);
input = v4l2_subdev_state_get_format(state, SRU_PAD_SINK);