Hi Chun-Kuang, Thanks for the reviews. I forgot to add the comment that the patch should be based on [1]. We can only apply it after applying [1]. So please apply it after that. Thank you very much! Regards, Jason-JH.Lin --- [1] drm/mediatek: modify mediatek-drm for mt8195 multi mmsys support https://patchwork.kernel.org/project/linux-mediatek/patch/20220222100741.30138-21-nancy.lin@xxxxxxxxxxxx/ --- On Sun, 2022-02-27 at 11:33 +0800, Chun-Kuang Hu wrote: > Hi, Jason: > > Build error: > > ../drivers/gpu/drm/mediatek/mtk_drm_crtc.c: In function > ‘mtk_drm_crtc_create’: > ../drivers/gpu/drm/mediatek/mtk_drm_crtc.c:902:26: error: ‘struct > mtk_drm_private’ has no member named ‘dev’ > mtk_crtc->drm_dev = priv->dev; > ^ > ../drivers/gpu/drm/mediatek/mtk_drm_crtc.c:974:30: error: ‘struct > mtk_drm_private’ has no member named ‘dev’ > link = device_link_add(priv->dev, mtk_crtc->cmdq_client.chan- > >mbox->dev, > ^ > In file included from ../include/linux/device.h:15:0, > from ../include/linux/dma-mapping.h:7, > from ../drivers/gpu/drm/mediatek/mtk_drm_crtc.c:7: > ../drivers/gpu/drm/mediatek/mtk_drm_crtc.c:977:16: error: ‘struct > mtk_drm_private’ has no member named ‘dev’ > dev_err(priv->dev, "Unable to link dev=%s\n", > ^ > Regards, > Chun-Kuang.