Commit f85acdad authored by Chun-Kuang Hu's avatar Chun-Kuang Hu
Browse files

drm/mediatek: Use CPU when fail to get cmdq event 



Even though cmdq client is created successfully, without the cmdq event,
cmdq could not work correctly, so use CPU when fail to get cmdq event.

Fixes: 60fa8c13 ("drm/mediatek: Move gce event property to mutex device node")
Signed-off-by: default avatarChun-Kuang Hu <chunkuang.hu@kernel.org>
parent 855f3e08

drivers/gpu/drm/mediatek/mtk_drm_crtc.c

+13 −7
Original line number Diff line number Diff line
@@ -831,13 +831,19 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, 
			drm_crtc_index(&mtk_crtc->base));

		mtk_crtc->cmdq_client = NULL;

	}



	if (mtk_crtc->cmdq_client) {

		ret = of_property_read_u32_index(priv->mutex_node,

						 "mediatek,gce-events",

						 drm_crtc_index(&mtk_crtc->base),

						 &mtk_crtc->cmdq_event);

	if (ret)

		if (ret) {

			dev_dbg(dev, "mtk_crtc %d failed to get mediatek,gce-events property\n",

				drm_crtc_index(&mtk_crtc->base));

			cmdq_mbox_destroy(mtk_crtc->cmdq_client);

			mtk_crtc->cmdq_client = NULL;

		}

	}

#endif

	return 0;

}