[PATCH v2] drm/msm/dp: signal audio plugged change at dp_pm_resume

Kuogee Hsieh khsieh at codeaurora.org
Fri Jul 23 16:55:39 UTC 2021


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 <khsieh at codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd at chromium.org>
---
 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)
 	else
 		dp->dp_display.is_connected = false;
 
+	dp_display_handle_plugged_change(g_dp_display,
+				dp->dp_display.is_connected);
+
+
 	mutex_unlock(&dp->event_mutex);
 
 	return 0;
-- 
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