From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
It should use same method to get same result. To getting remote-endpoint node, let's use of_graph_get_remote_endpoint()
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- v3 -> v4
- no change
drivers/of/base.c | 18 ++++++++++++++++-- include/linux/of_graph.h | 8 ++++++++ 2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/drivers/of/base.c b/drivers/of/base.c index d7c4629..3fad47f 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -2455,6 +2455,20 @@ struct device_node *of_graph_get_endpoint_by_regs( EXPORT_SYMBOL(of_graph_get_endpoint_by_regs);
/** + * of_graph_get_remote_endpoint() - get remote endpoint node + * @node: pointer to a local endpoint device_node + * + * Return: Remote endpoint node associated with remote endpoint node linked + * to @node. Use of_node_put() on it when done. + */ +struct device_node *of_graph_get_remote_endpoint(const struct device_node *node) +{ + /* Get remote endpoint node. */ + return of_parse_phandle(node, "remote-endpoint", 0); +} +EXPORT_SYMBOL(of_graph_get_remote_endpoint); + +/** * of_graph_get_remote_port_parent() - get remote port's parent node * @node: pointer to a local endpoint device_node * @@ -2468,7 +2482,7 @@ struct device_node *of_graph_get_remote_port_parent( unsigned int depth;
/* Get remote endpoint node. */ - np = of_parse_phandle(node, "remote-endpoint", 0); + np = of_graph_get_remote_endpoint(node);
/* Walk 3 levels up only if there is 'ports' node. */ for (depth = 3; depth && np; depth--) { @@ -2492,7 +2506,7 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node) struct device_node *np;
/* Get remote endpoint node. */ - np = of_parse_phandle(node, "remote-endpoint", 0); + np = of_graph_get_remote_endpoint(node); if (!np) return NULL; return of_get_next_parent(np); diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h index abdb02e..0c9473a 100644 --- a/include/linux/of_graph.h +++ b/include/linux/of_graph.h @@ -48,6 +48,8 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent, struct device_node *previous); struct device_node *of_graph_get_endpoint_by_regs( const struct device_node *parent, int port_reg, int reg); +struct device_node *of_graph_get_remote_endpoint( + const struct device_node *node); struct device_node *of_graph_get_remote_port_parent( const struct device_node *node); struct device_node *of_graph_get_remote_port(const struct device_node *node); @@ -80,6 +82,12 @@ static inline struct device_node *of_graph_get_endpoint_by_regs( return NULL; }
+static inline struct device_node *of_graph_get_remote_endpoint( + const struct device_node *node) +{ + return NULL; +} + static inline struct device_node *of_graph_get_remote_port_parent( const struct device_node *node) {