linux-kernel - [PATCH v5 09/16] drm/mediatek: Use pm_runtime_resume_and_get for PM get

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Date:   Sat, 10 Apr 2021 17:11:21 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Joerg Roedel <joro@...tes.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>
CC:     Evan Green <evgreen@...omium.org>,
        Robin Murphy <robin.murphy@....com>,
        Tomasz Figa <tfiga@...omium.org>,
        Will Deacon <will.deacon@....com>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux-foundation.org>, <yong.wu@...iatek.com>,
        <youlin.pei@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>, <anan.sun@...iatek.com>,
        <chao.hao@...iatek.com>, <ming-fan.chen@...iatek.com>,
        <yi.kuo@...iatek.com>, <eizan@...omium.org>,
        <acourbot@...omium.org>
Subject: [PATCH v5 09/16] drm/mediatek: Use pm_runtime_resume_and_get for PM get_sync

pm_runtime_get_sync will increment pm usage counter even it failed.
This patch use pm_runtime_resume_and_get instead of pm_runtime_get
to keep usage counter balanced.

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
---
 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 8b0de90156c6..69d23ce56d2c 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -259,7 +259,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
 		drm_connector_list_iter_end(&conn_iter);
 	}
 
-	ret = pm_runtime_get_sync(crtc->dev->dev);
+	ret = pm_runtime_resume_and_get(crtc->dev->dev);
 	if (ret < 0) {
 		DRM_ERROR("Failed to enable power domain: %d\n", ret);
 		return ret;
-- 
2.18.0