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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2014-02-14 14:53:56 +0400 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2014-03-06 20:41:48 +0400 |
| commit | f2a575f67695dcba9062acd666ae5aab2380b95c (patch) | |
| tree | 86f69c5cfb33eee11693e496bf02103e50d3a3c9 /include/linux/of_graph.h | |
| parent | 4329b93b283cce828967c01bc3827fdff51c8d7e (diff) | |
| download | linux-f2a575f67695dcba9062acd666ae5aab2380b95c.tar.xz | |
[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/of_graph.h')
| -rw-r--r-- | include/linux/of_graph.h | 20 |
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) |