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| author |   Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2013-05-17 07:31:04 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-03 00:50:46 -0300 |
| commit | c9bca8b33118573da9b7ac2ea21947a8e4d287dd (patch) | |
| tree | c31d34a89eb3ea5233f4f3494386ad130c0fa950 /include/media | |
| parent | [media] v4l: Add VUY8 24 bits bus format (diff) | |
| download | linux-dev-c9bca8b33118573da9b7ac2ea21947a8e4d287dd.tar.xz linux-dev-c9bca8b33118573da9b7ac2ea21947a8e4d287dd.zip | |
[media] v4l: of: Add v4l2_of_parse_link() function
The function fills a link data structure with the device node and port
number at both the local and remote ends of a link defined by one of its
endpoint nodes.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-of.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/media/v4l2-of.h b/include/media/v4l2-of.h index 2de42c584eb2..f831c9c225b6 100644 --- a/include/media/v4l2-of.h +++ b/include/media/v4l2-of.h @@ -69,9 +69,26 @@ struct v4l2_of_endpoint { struct list_head head; }; +/** + * struct v4l2_of_link - a link between two endpoints + * @local_node: pointer to device_node of this endpoint + * @local_port: identifier of the port this endpoint belongs to + * @remote_node: pointer to device_node of the remote endpoint + * @remote_port: identifier of the port the remote endpoint belongs to + */ +struct v4l2_of_link { + struct device_node *local_node; + unsigned int local_port; + struct device_node *remote_node; + unsigned int remote_port; +}; + #ifdef CONFIG_OF int v4l2_of_parse_endpoint(const struct device_node *node, struct v4l2_of_endpoint *endpoint); +int v4l2_of_parse_link(const struct device_node *node, + struct v4l2_of_link *link); +void v4l2_of_put_link(struct v4l2_of_link *link); #else /* CONFIG_OF */ static inline int v4l2_of_parse_endpoint(const struct device_node *node, @@ -80,6 +97,16 @@ static inline int v4l2_of_parse_endpoint(const struct device_node *node, return -ENOSYS; } +static inline int v4l2_of_parse_link(const struct device_node *node, + struct v4l2_of_link *link) +{ + return -ENOSYS; +} + +static inline void v4l2_of_put_link(struct v4l2_of_link *link) +{ +} + #endif /* CONFIG_OF */ #endif /* _V4L2_OF_H */ |