drm_dp_mst_dsc_aux_for_port
aconnector->dsc_aux = drm_dp_mst_dsc_aux_for_port(port);
if (!drm_dp_mst_dsc_aux_for_port(pos->port))
EXPORT_SYMBOL(drm_dp_mst_dsc_aux_for_port);
connector->dp.dsc_decompression_aux = drm_dp_mst_dsc_aux_for_port(port);
struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port);