Merge tag 'lsk-v3.10-15.04-android'

[firefly-linux-kernel-4.4.55.git] / include / linux / of_graph.h

diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index 3bbeb609a360f992692c1fc67d9255bd9194db7c..56e0507a0d5881c4e55a68b7238ed19482b1331e 100644 (file)
--- a/include/linux/of_graph.h
+++ b/include/linux/of_graph.h
@@ -14,7 +14,21 @@
 #ifndef __LINUX_OF_GRAPH_H
 #define __LINUX_OF_GRAPH_H
 
+/**
+ * struct of_endpoint - the OF graph endpoint data structure
+ * @port: identifier (value of reg property) of a port this endpoint belongs to
+ * @id: identifier (value of reg property) of this endpoint
+ * @local_node: pointer to device_node of this endpoint
+ */
+struct of_endpoint {
+       unsigned int port;
+       unsigned int id;
+       const struct device_node *local_node;
+};
+
 #ifdef CONFIG_OF
+int of_graph_parse_endpoint(const struct device_node *node,
+                               struct of_endpoint *endpoint);
 struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
                                        struct device_node *previous);
 struct device_node *of_graph_get_remote_port_parent(
@@ -22,6 +36,11 @@ struct device_node *of_graph_get_remote_port_parent(
 struct device_node *of_graph_get_remote_port(const struct device_node *node);
 #else
 
+static inline int of_graph_parse_endpoint(const struct device_node *node,
+                                       struct of_endpoint *endpoint)
+{
+       return -ENOSYS;
+}
 static inline struct device_node *of_graph_get_next_endpoint(
                                        const struct device_node *parent,
                                        struct device_node *previous)