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authorPhilipp Zabel <p.zabel@pengutronix.de>2014-02-14 11:53:56 +0100
committerPhilipp Zabel <p.zabel@pengutronix.de>2014-03-06 17:41:48 +0100
commitf2a575f67695dcba9062acd666ae5aab2380b95c (patch)
tree86f69c5cfb33eee11693e496bf02103e50d3a3c9 /include/linux
parent4329b93b283cce828967c01bc3827fdff51c8d7e (diff)
[media] of: move common endpoint parsing to drivers/of
This patch adds a new struct of_endpoint which is then embedded in struct v4l2_of_endpoint and contains the endpoint properties that are not V4L2 (or even media) specific: the port number, endpoint id, local device tree node and remote endpoint phandle. of_graph_parse_endpoint parses those properties and is used by v4l2_of_parse_endpoint, which just adds the V4L2 MBUS information to the containing v4l2_of_endpoint structure. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/of_graph.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index 3bbeb609a360..2b233db76237 100644
--- a/include/linux/of_graph.h
+++ b/include/linux/of_graph.h
@@ -14,7 +14,21 @@
#ifndef __LINUX_OF_GRAPH_H
#define __LINUX_OF_GRAPH_H
+/**
+ * struct of_endpoint - the OF graph endpoint data structure
+ * @port: identifier (value of reg property) of a port this endpoint belongs to
+ * @id: identifier (value of reg property) of this endpoint
+ * @local_node: pointer to device_node of this endpoint
+ */
+struct of_endpoint {
+ unsigned int port;
+ unsigned int id;
+ const struct device_node *local_node;
+};
+
#ifdef CONFIG_OF
+int of_graph_parse_endpoint(const struct device_node *node,
+ struct of_endpoint *endpoint);
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(
@@ -22,6 +36,12 @@ struct device_node *of_graph_get_remote_port_parent(
struct device_node *of_graph_get_remote_port(const struct device_node *node);
#else
+static inline int of_graph_parse_endpoint(const struct device_node *node,
+ struct of_endpoint *endpoint);
+{
+ return -ENOSYS;
+}
+
static inline struct device_node *of_graph_get_next_endpoint(
const struct device_node *parent,
struct device_node *previous)

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