drm/edid: convert drm_connector_update_edid_property() to struct drm_edid

Make drm_connector_update_edid_property() a thin wrapper around a struct
drm_edid based version of the same.

This lets us remove the legacy drm_update_tile_info() and
drm_add_display_info() functions altogether.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4bfe87ae392554ffb41d725353c4265ae56700bb.1656494768.git.jani.nikula@intel.com

drivers/gpu/drm/drm_edid.c

@@ -6042,14 +6042,6 @@ static u32 update_display_info(struct drm_connector *connector,
 	return quirks;
 }
 
-static u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)
-{
-	struct drm_edid drm_edid;
-
-	return update_display_info(connector,
-				   drm_edid_legacy_init(&drm_edid, edid));
-}
-
 static struct drm_display_mode *drm_mode_displayid_detailed(struct drm_device *dev,
 							    struct displayid_detailed_timings_1 *timings,
 							    bool type_7)
@@ -6206,38 +6198,19 @@ static int drm_edid_connector_update(struct drm_connector *connector,
 	return num_modes;
 }
 
-static void drm_update_tile_info(struct drm_connector *connector,
-				 const struct edid *edid);
+static void _drm_update_tile_info(struct drm_connector *connector,
+				  const struct drm_edid *drm_edid);
 
-/**
- * drm_connector_update_edid_property - update the edid property of a connector
- * @connector: drm connector
- * @edid: new value of the edid property
- *
- * This function creates a new blob modeset object and assigns its id to the
- * connector's edid property.
- * Since we also parse tile information from EDID's displayID block, we also
- * set the connector's tile property here. See drm_connector_set_tile_property()
- * for more details.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_connector_update_edid_property(struct drm_connector *connector,
-				       const struct edid *edid)
+static int _drm_connector_update_edid_property(struct drm_connector *connector,
+					       const struct drm_edid *drm_edid)
 {
 	struct drm_device *dev = connector->dev;
-	size_t size = 0;
 	int ret;
-	const struct edid *old_edid;
 
 	/* ignore requests to set edid when overridden */
 	if (connector->override_edid)
 		return 0;
 
-	if (edid)
-		size = EDID_LENGTH * (1 + edid->extensions);
-
 	/*
 	 * Set the display info, using edid if available, otherwise resetting
 	 * the values to defaults. This duplicates the work done in
@@ -6246,17 +6219,18 @@ int drm_connector_update_edid_property(struct drm_connector *connector,
 	 * that it seems better to duplicate it rather than attempt to ensure
 	 * some arbitrary ordering of calls.
 	 */
-	if (edid)
-		drm_add_display_info(connector, edid);
+	if (drm_edid)
+		update_display_info(connector, drm_edid);
 	else
 		drm_reset_display_info(connector);
 
-	drm_update_tile_info(connector, edid);
+	_drm_update_tile_info(connector, drm_edid);
 
 	if (connector->edid_blob_ptr) {
-		old_edid = (const struct edid *)connector->edid_blob_ptr->data;
+		const struct edid *old_edid = connector->edid_blob_ptr->data;
+
 		if (old_edid) {
-			if (!drm_edid_are_equal(edid, old_edid)) {
+			if (!drm_edid_are_equal(drm_edid ? drm_edid->edid : NULL, old_edid)) {
 				DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Edid was changed.\n",
 					      connector->base.id, connector->name);
 
@@ -6273,14 +6247,37 @@ int drm_connector_update_edid_property(struct drm_connector *connector,
 
 	ret = drm_property_replace_global_blob(dev,
 					       &connector->edid_blob_ptr,
-					       size,
-					       edid,
+					       drm_edid ? drm_edid->size : 0,
+					       drm_edid ? drm_edid->edid : NULL,
 					       &connector->base,
 					       dev->mode_config.edid_property);
 	if (ret)
 		return ret;
 	return drm_connector_set_tile_property(connector);
 }
+
+/**
+ * drm_connector_update_edid_property - update the edid property of a connector
+ * @connector: drm connector
+ * @edid: new value of the edid property
+ *
+ * This function creates a new blob modeset object and assigns its id to the
+ * connector's edid property.
+ * Since we also parse tile information from EDID's displayID block, we also
+ * set the connector's tile property here. See drm_connector_set_tile_property()
+ * for more details.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_connector_update_edid_property(struct drm_connector *connector,
+				       const struct edid *edid)
+{
+	struct drm_edid drm_edid;
+
+	return _drm_connector_update_edid_property(connector,
+						   drm_edid_legacy_init(&drm_edid, edid));
+}
 EXPORT_SYMBOL(drm_connector_update_edid_property);
 
 /**
@@ -6720,11 +6717,3 @@ static void _drm_update_tile_info(struct drm_connector *connector,
 		connector->tile_group = NULL;
 	}
 }
-
-static void drm_update_tile_info(struct drm_connector *connector,
-				 const struct edid *edid)
-{
-	struct drm_edid drm_edid;
-
-	_drm_update_tile_info(connector, drm_edid_legacy_init(&drm_edid, edid));
-}