1 files changed, 29 insertions, 9 deletions

diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
index 1da93d5a1f61..8239ad43aed5 100644
--- a/drivers/gpu/drm/drm_bridge_connector.c
+++ b/drivers/gpu/drm/drm_bridge_connector.c
@@ -5,6 +5,8 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/property.h>
 #include <linux/slab.h>
 
 #include <drm/drm_atomic_state_helper.h>
@@ -107,27 +109,36 @@ static void drm_bridge_connector_hpd_notify(struct drm_connector *connector,
 	}
 }
 
-static void drm_bridge_connector_hpd_cb(void *cb_data,
-					enum drm_connector_status status)
+static void drm_bridge_connector_handle_hpd(struct drm_bridge_connector *drm_bridge_connector,
+					    enum drm_connector_status status)
 {
-	struct drm_bridge_connector *drm_bridge_connector = cb_data;
 	struct drm_connector *connector = &drm_bridge_connector->base;
 	struct drm_device *dev = connector->dev;
-	enum drm_connector_status old_status;
 
 	mutex_lock(&dev->mode_config.mutex);
-	old_status = connector->status;
 	connector->status = status;
 	mutex_unlock(&dev->mode_config.mutex);
 
-	if (old_status == status)
-		return;
-
 	drm_bridge_connector_hpd_notify(connector, status);
 
 	drm_kms_helper_connector_hotplug_event(connector);
 }
 
+static void drm_bridge_connector_hpd_cb(void *cb_data,
+					enum drm_connector_status status)
+{
+	drm_bridge_connector_handle_hpd(cb_data, status);
+}
+
+static void drm_bridge_connector_oob_hotplug_event(struct drm_connector *connector,
+						   enum drm_connector_status status)
+{
+	struct drm_bridge_connector *bridge_connector =
+		to_drm_bridge_connector(connector);
+
+	drm_bridge_connector_handle_hpd(bridge_connector, status);
+}
+
 static void drm_bridge_connector_enable_hpd(struct drm_connector *connector)
 {
 	struct drm_bridge_connector *bridge_connector =
@@ -196,6 +207,8 @@ static void drm_bridge_connector_destroy(struct drm_connector *connector)
 	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
 
+	fwnode_handle_put(connector->fwnode);
+
 	kfree(bridge_connector);
 }
 
@@ -221,6 +234,7 @@ static const struct drm_connector_funcs drm_bridge_connector_funcs = {
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 	.debugfs_init = drm_bridge_connector_debugfs_init,
+	.oob_hotplug_event = drm_bridge_connector_oob_hotplug_event,
 };
 
 /* -----------------------------------------------------------------------------
@@ -238,7 +252,7 @@ static int drm_bridge_connector_get_modes_edid(struct drm_connector *connector,
 	if (status != connector_status_connected)
 		goto no_edid;
 
-	edid = bridge->funcs->get_edid(bridge, connector);
+	edid = drm_bridge_get_edid(bridge, connector);
 	if (!drm_edid_is_valid(edid)) {
 		kfree(edid);
 		goto no_edid;
@@ -357,6 +371,12 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
 		if (!drm_bridge_get_next_bridge(bridge))
 			connector_type = bridge->type;
 
+#ifdef CONFIG_OF
+		if (!drm_bridge_get_next_bridge(bridge) &&
+		    bridge->of_node)
+			connector->fwnode = fwnode_handle_get(of_fwnode_handle(bridge->of_node));
+#endif
+
 		if (bridge->ddc)
 			ddc = bridge->ddc;