drm_dp_mst_connector_late_register
r = drm_dp_mst_connector_late_register(connector,
EXPORT_SYMBOL(drm_dp_mst_connector_late_register);
ret = drm_dp_mst_connector_late_register(&connector->base, connector->mst.port);
int drm_dp_mst_connector_late_register(struct drm_connector *connector,