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From: Kuogee Hsieh <>
Subject: [PATCH v2] drm/msm/dp: signal audio plugged change at dp_pm_resume
Date: Fri, 23 Jul 2021 09:55:39 -0700	[thread overview]
Message-ID: <> (raw)

There is a scenario that dp cable is unplugged from DUT during system
suspended  will cause audio option state does not match real connection
state. Fix this problem by Signaling audio plugged change with realtime
connection status at dp_pm_resume() so that audio option will be in
correct state after system resumed.

Changes in V2:
-- correct Fixes tag commit id.

Fixes: f591dbb5fb8c ("drm/msm/dp: power off DP phy at suspend")
Signed-off-by: Kuogee Hsieh <>
Reviewed-by: Stephen Boyd <>
 drivers/gpu/drm/msm/dp/dp_display.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 78c5301..2b660e9 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1339,6 +1339,10 @@ static int dp_pm_resume(struct device *dev)
 		dp->dp_display.is_connected = false;
+	dp_display_handle_plugged_change(g_dp_display,
+				dp->dp_display.is_connected);
 	return 0;
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

             reply	other threads:[~2021-07-23 16:56 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-23 16:55 Kuogee Hsieh [this message]
2021-07-26 21:01 ` Stephen Boyd
2021-07-26 22:26 ` Stephen Boyd

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