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Commit 4c9c3d59 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mark Brown
Browse files

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: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 00bab23f

drivers/of/base.c

+16 −2
Original line number Diff line number Diff line
@@ -2486,6 +2486,20 @@ 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);

include/linux/of_graph.h

+8 −0
Original line number Diff line number Diff line
@@ -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)

{