diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-04-20 01:31:42 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-05-17 10:21:08 +0100 |
| commit | 4c9c3d595f1bad021cc126d20879df4016801736 (patch) | |
| tree | 9cf15b28be46d6399c5dade85e758b7ccca257e7 | |
| parent | 00bab23f72100a5fd8a3030f81d0af07a859ed17 (diff) | |
of_graph: add of_graph_get_remote_endpoint()
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>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/of/base.c | 18 | ||||
| -rw-r--r-- | 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 5db6aa1688e9..b169508a9b56 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -2487,6 +2487,20 @@ 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 * @@ -2500,7 +2514,7 @@ 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--) { @@ -2524,7 +2538,7 @@ 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 abdb02eaef06..0c9473a169dd 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) { |