This is a note to let you know that I've just added the patch titled drm/mediatek: reduce clear event to the 5.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-mediatek-reduce-clear-event.patch and it can be found in the queue-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 9508fe0600d435e8296400379282751c1d5a422c Author: Dennis YC Hsieh <dennis-yc.hsieh@xxxxxxxxxxxx> Date: Tue Jul 7 23:45:14 2020 +0800 drm/mediatek: reduce clear event [ Upstream commit bee1abc9cc021f50b90f22a589d9ddc816a80db0 ] No need to clear event again since event always clear before wait. This fix depend on patch: "soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api" Fixes: 2f965be7f9008 ("drm/mediatek: apply CMDQ control flow") Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@xxxxxxxxxxxx> Reviewed-by: Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx> Acked-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> Link: https://lore.kernel.org/r/1594136714-11650-10-git-send-email-dennis-yc.hsieh@xxxxxxxxxxxx Signed-off-by: Matthias Brugger <matthias.bgg@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index a4977009d3076..ac038572164d3 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -481,7 +481,7 @@ static void mtk_drm_crtc_hw_config(struct mtk_drm_crtc *mtk_crtc) mbox_flush(mtk_crtc->cmdq_client->chan, 2000); cmdq_handle = cmdq_pkt_create(mtk_crtc->cmdq_client, PAGE_SIZE); cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event); - cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, true); + cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false); mtk_crtc_ddp_config(crtc, cmdq_handle); cmdq_pkt_finalize(cmdq_handle); cmdq_pkt_flush_async(cmdq_handle, ddp_cmdq_cb, cmdq_handle);