CRTC_MAIN
if (output_present[CRTC_MAIN]) {
ret = mtk_drm_of_ddp_path_build_one(dev, CRTC_MAIN,
all_drm_priv[CRTC_MAIN] = temp_drm_priv;
if (i == CRTC_MAIN && priv_n->data->main_len) {