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authorPhilipp Zabel <p.zabel@pengutronix.de>2014-03-11 14:21:11 +0400
committerPhilipp Zabel <p.zabel@pengutronix.de>2015-02-23 13:42:24 +0300
commitbfe446e37c4efd8ade454911e8f80414bcbfc10d (patch)
treed8fe4cfe825c975e1ceac2a76a2dca97e47154e7 /include/linux/of_graph.h
parentee8905963ed0bc9dfc0952dc35e16e233c10e212 (diff)
downloadlinux-bfe446e37c4efd8ade454911e8f80414bcbfc10d.tar.xz
of: Add of_graph_get_port_by_id function
This patch adds a function to get a port device tree node by port id, or reg property value. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'include/linux/of_graph.h')
-rw-r--r--include/linux/of_graph.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index e43442efcbe5..3c1c95a39e0c 100644
--- a/include/linux/of_graph.h
+++ b/include/linux/of_graph.h
@@ -40,6 +40,7 @@ struct of_endpoint {
#ifdef CONFIG_OF
int of_graph_parse_endpoint(const struct device_node *node,
struct of_endpoint *endpoint);
+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);
struct device_node *of_graph_get_remote_port_parent(
@@ -53,6 +54,12 @@ static inline int of_graph_parse_endpoint(const struct device_node *node,
return -ENOSYS;
}
+static inline struct device_node *of_graph_get_port_by_id(
+ struct device_node *node, u32 id)
+{
+ return NULL;
+}
+
static inline struct device_node *of_graph_get_next_endpoint(
const struct device_node *parent,
struct device_node *previous)