+/**
+ * of_get_next_parent - Iterate to a node's parent
+ * @node: Node to get parent of
+ *
+ * This is like of_get_parent() except that it drops the
+ * refcount on the passed node, making it suitable for iterating
+ * through a node's parents.
+ *
+ * Returns a node pointer with refcount incremented, use
+ * of_node_put() on it when done.
+ */
+struct device_node *of_get_next_parent(struct device_node *node)
+{
+ struct device_node *parent;
+
+ if (!node)
+ return NULL;
+
+ read_lock(&devtree_lock);
+ parent = of_node_get(node->parent);
+ of_node_put(node);
+ read_unlock(&devtree_lock);
+ return parent;
+}
+