Hi Chun-Kuang, Thank you to take time to send this, for full series Tested-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx> Display is now working again. Thanks, Enric Missatge de Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> del dia dv., 8 d’oct. 2021 a les 1:53: > > Commit c1ec54b7b5af > ("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb") > would cause numerous mtk cmdq mailbox driver warning: > > WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198 > cmdq_task_exec_done+0xb8/0xe0 > > So revert that patch and all the patches depend on that patch. > > Chun-Kuang Hu (5): > Revert "drm/mediatek: Clear pending flag when cmdq packet is done" > Revert "drm/mediatek: Add cmdq_handle in mtk_crtc" > Revert "drm/mediatek: Detect CMDQ execution timeout" > Revert "drm/mediatek: Remove struct cmdq_client" > Revert "drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb" > > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 157 ++++-------------------- > 1 file changed, 24 insertions(+), 133 deletions(-) > > -- > 2.25.1 >