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Message-Id: <20220105104826.1418-1-linmq006@gmail.com>
Date: Wed, 5 Jan 2022 10:48:26 +0000
From: Miaoqian Lin <linmq006@...il.com>
To: unlisted-recipients:; (no To-header on input)
Cc: linmq006@...il.com, Andrzej Hajda <a.hajda@...sung.com>,
Neil Armstrong <narmstrong@...libre.com>,
Robert Foss <robert.foss@...aro.org>,
Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
Jonas Karlman <jonas@...boo.se>,
Jernej Skrabec <jernej.skrabec@...il.com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Fabio Estevam <festevam@...il.com>,
Guido Günther <agx@...xcpu.org>,
Robert Chiras <robert.chiras@....com>,
Sam Ravnborg <sam@...nborg.org>,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/bridge: nwl-dsi: Fix PM disable depth imbalance in nwl_dsi_probe
The pm_runtime_enable will increase power disable depth.
Thus a pairing decrement is needed on the error handling
path to keep it balanced according to context.
Fixes: 44cfc62 ("drm/bridge: Add NWL MIPI DSI host controller support")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
drivers/gpu/drm/bridge/nwl-dsi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/bridge/nwl-dsi.c b/drivers/gpu/drm/bridge/nwl-dsi.c
index a7389a0facfb..fc3ad9fab867 100644
--- a/drivers/gpu/drm/bridge/nwl-dsi.c
+++ b/drivers/gpu/drm/bridge/nwl-dsi.c
@@ -1206,6 +1206,7 @@ static int nwl_dsi_probe(struct platform_device *pdev)
ret = nwl_dsi_select_input(dsi);
if (ret < 0) {
+ pm_runtime_disable(dev);
mipi_dsi_host_unregister(&dsi->dsi_host);
return ret;
}
--
2.17.1
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