FE_OUTPUT1_PAD
.link_pad = FE_OUTPUT1_PAD
fmt = v4l2_subdev_state_get_format(state, FE_OUTPUT1_PAD);
fmt = v4l2_subdev_state_get_format(state, FE_OUTPUT1_PAD);
case FE_OUTPUT1_PAD: {
fe->pad[FE_OUTPUT1_PAD].flags = MEDIA_PAD_FL_SOURCE;