Merge tag 'backport/v3.14.24-ltsi-rc1/phy-rcar-gen2-usb-to-v3.15' into backport/v3...

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / of / base.c

diff --git a/drivers/of/base.c b/drivers/of/base.c
index d43b18e..ec992dc 100644 (file)
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1973,6 +1973,34 @@ struct device_node *of_find_next_cache_node(const struct device_node *np)
 }
 
 /**
+ * of_graph_parse_endpoint() - parse common endpoint node properties
+ * @node: pointer to endpoint device_node
+ * @endpoint: pointer to the OF endpoint data structure
+ *
+ * The caller should hold a reference to @node.
+ */
+int of_graph_parse_endpoint(const struct device_node *node,
+                           struct of_endpoint *endpoint)
+{
+       struct device_node *port_node = of_get_parent(node);
+
+       memset(endpoint, 0, sizeof(*endpoint));
+
+       endpoint->local_node = node;
+       /*
+        * It doesn't matter whether the two calls below succeed.
+        * If they don't then the default value 0 is used.
+        */
+       of_property_read_u32(port_node, "reg", &endpoint->port);
+       of_property_read_u32(node, "reg", &endpoint->id);
+
+       of_node_put(port_node);
+
+       return 0;
+}
+EXPORT_SYMBOL(of_graph_parse_endpoint);
+
+/**
  * of_graph_get_next_endpoint() - get next endpoint node
  * @parent: pointer to the parent device node
  * @prev: previous endpoint node, or NULL to get first