drm/ast: Provide ddc symlink in connector sysfs directory

Use the ddc pointer provided by the generic connector.
Signed-off-by: NAndrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: NThomas Zimmermann <tzimmermann@suse.de>
Acked-by: NSam Ravnborg <sam@ravnborg.org>
Reviewed-by: NEmil Velikov <emil.velikov@collabora.com>
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ff968add8074d109aeed02f0708edd85138246c3.1564161140.git.andrzej.p@collabora.com

drivers/gpu/drm/ast/ast_mode.c

@@ -867,7 +867,14 @@ static int ast_connector_init(struct drm_device *dev)
 		return -ENOMEM;
 
 	connector = &ast_connector->base;
-	drm_connector_init(dev, connector, &ast_connector_funcs, DRM_MODE_CONNECTOR_VGA);
+	ast_connector->i2c = ast_i2c_create(dev);
+	if (!ast_connector->i2c)
+		DRM_ERROR("failed to add ddc bus for connector\n");
+
+	drm_connector_init_with_ddc(dev, connector,
+				    &ast_connector_funcs,
+				    DRM_MODE_CONNECTOR_VGA,
+				    &ast_connector->i2c->adapter);
 
 	drm_connector_helper_add(connector, &ast_connector_helper_funcs);
 
@@ -881,10 +888,6 @@ static int ast_connector_init(struct drm_device *dev)
 	encoder = list_first_entry(&dev->mode_config.encoder_list, struct drm_encoder, head);
 	drm_connector_attach_encoder(connector, encoder);
 
-	ast_connector->i2c = ast_i2c_create(dev);
-	if (!ast_connector->i2c)
-		DRM_ERROR("failed to add ddc bus for connector\n");
-
 	return 0;
 }