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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2017-03-28 10:52:25 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-03-29 00:00:29 +0200 |
| commit | 2bd5452d46df46d99b869b59a1532647e2981d75 (patch) | |
| tree | f906c5942e4b71281c2141254a2d43d9ebdd5824 /include | |
| parent | e44bb0cbdc88686c21e2175a990b40bf6db5d005 (diff) | |
| download | linux-stable-2bd5452d46df46d99b869b59a1532647e2981d75.tar.gz linux-stable-2bd5452d46df46d99b869b59a1532647e2981d75.tar.bz2 linux-stable-2bd5452d46df46d99b869b59a1532647e2981d75.zip | |
device property: Add support for fwnode endpoints
Similar to OF endpoints, endpoint type nodes can be also supported on
ACPI. In order to make it possible for drivers to ignore the matter,
add a type for fwnode_endpoint and a function to parse them.
On ACPI, find the child node index instead of relying on the "endpoint"
property.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fwnode.h | 12 | ||||
| -rw-r--r-- | include/linux/property.h | 3 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 8bd28ce6d76e..3dff2398a5f0 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -27,4 +27,16 @@ struct fwnode_handle { struct fwnode_handle *secondary; }; +/** + * struct fwnode_endpoint - Fwnode graph endpoint + * @port: Port number + * @id: Endpoint id + * @local_fwnode: reference to the related fwnode + */ +struct fwnode_endpoint { + unsigned int port; + unsigned int id; + const struct fwnode_handle *local_fwnode; +}; + #endif diff --git a/include/linux/property.h b/include/linux/property.h index 6e20a12a2eec..3a4e43599e01 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -280,4 +280,7 @@ struct fwnode_handle *fwnode_graph_get_remote_port( struct fwnode_handle *fwnode_graph_get_remote_endpoint( struct fwnode_handle *fwnode); +int fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode, + struct fwnode_endpoint *endpoint); + #endif /* _LINUX_PROPERTY_H_ */ |