linux-kernel - [PATCH 5.9 625/757] drm/mediatek: reduce clear event

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Date:   Tue, 27 Oct 2020 14:54:35 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dennis YC Hsieh <dennis-yc.hsieh@...iatek.com>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.9 625/757] drm/mediatek: reduce clear event

From: Dennis YC Hsieh <dennis-yc.hsieh@...iatek.com>

[ 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@...iatek.com>
Reviewed-by: Bibby Hsieh <bibby.hsieh@...iatek.com>
Acked-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>
Link: https://lore.kernel.org/r/1594136714-11650-10-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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);
-- 
2.25.1