[PATCH v4 05/10] drm/bridge: synopsis: Fix to properly handle HPD

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It appears that dw-hdmi plugin detection is not properly
propagated unless we call drm_kms_helper_hotplug_event().

Maybe drm_bridge_hpd_notify should have been setup to
call this.

Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index f082e14320e1..edea04f80576 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3018,6 +3018,8 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 		if (hdmi->bridge.dev) {
 			drm_helper_hpd_irq_event(hdmi->bridge.dev);
 			drm_bridge_hpd_notify(&hdmi->bridge, status);
+
+			drm_kms_helper_hotplug_event(hdmi->bridge.dev);
 		}
 	}
 
-- 
2.31.1




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