From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
OF graph want to count its endpoint number, same as of_get_child_count(). This patch adds of_graph_get_endpoint_count()
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- v3 -> v4
- no change
drivers/of/base.c | 12 ++++++++++++ include/linux/of_graph.h | 6 ++++++ 2 files changed, 18 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c index eac37014..812edb9 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -2527,6 +2527,18 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node) } EXPORT_SYMBOL(of_graph_get_remote_port);
+int of_graph_get_endpoint_count(const struct device_node *np) +{ + struct device_node *endpoint; + int num = 0; + + for_each_endpoint_of_node(np, endpoint) + num++; + + return num; +} +EXPORT_SYMBOL(of_graph_get_endpoint_count); + /** * of_graph_get_remote_node() - get remote parent device_node for given port/endpoint * @node: pointer to parent device_node containing graph port/endpoint diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h index 9db632d..3e058f0 100644 --- a/include/linux/of_graph.h +++ b/include/linux/of_graph.h @@ -43,6 +43,7 @@ struct of_endpoint { #ifdef CONFIG_OF int of_graph_parse_endpoint(const struct device_node *node, struct of_endpoint *endpoint); +int of_graph_get_endpoint_count(const struct device_node *np); struct device_node *of_graph_get_port_by_id(struct device_node *node, u32 id); struct device_node *of_graph_get_next_endpoint(const struct device_node *parent, struct device_node *previous); @@ -64,6 +65,11 @@ static inline int of_graph_parse_endpoint(const struct device_node *node, return -ENOSYS; }
+static inline int of_graph_get_endpoint_count(const struct device_node *np) +{ + return 0; +} + static inline struct device_node *of_graph_get_port_by_id( struct device_node *node, u32 id) {