[PATCH v7 16/23] drm: bridge: dw_hdmi: Update EDID and CEC phys addr in bridge detect()

[Jonas Karlman]

Update EDID and CEC phys addr in the bridge detect() func to closely
match the behavior of a bridge connector with a HDMI bridge attached
and the dw-hdmi connector.

This change introduce a slight delay to the bridge connector detect()
and get_modes() funcs due to multiple EDID reads. This is an acceptable
added delay to help ensure EDID and CEC phys addr always are correct.

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
v7: Update commit message
v6: New patch

This is a temporary change until dw-hdmi is fully converted into a
HDMI bridge in a future part of this multi-series effort.

The patch "drm/bridge-connector: Use cached connector status in
.get_modes()" [1] can help remove one unnecessary EDID read until
dw-hdmi is fully converted into a HDMI bridge.

[1] https://lore.kernel.org/dri-devel/20260426-dw-hdmi-qp-scramb-v5-3-d778e70c317b@collabora.com/
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 37406555af7b..0c4388e7aa5e 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2947,8 +2947,17 @@ static enum drm_connector_status
 dw_hdmi_bridge_detect(struct drm_bridge *bridge, struct drm_connector *connector)
 {
 	struct dw_hdmi *hdmi = bridge->driver_private;
+	enum drm_connector_status status;
 
-	return dw_hdmi_detect(hdmi);
+	status = dw_hdmi_detect(hdmi);
+
+	/*
+	 * Update EDID and CEC phys addr to match the behavior of a bridge
+	 * connector with a HDMI bridge attached and the dw-hdmi connector.
+	 */
+	dw_hdmi_connector_status_update(hdmi, connector, status);
+
+	return status;
 }
 
 static const struct drm_edid *dw_hdmi_bridge_edid_read(struct drm_bridge *bridge,
-- 
2.54.0