[PATCH v2 01/13] fs: devfs-core: add devfs_create_link_node()

[Sascha Hauer]

Allow to create a devfs link that not only has its own name, but also
its own device_node.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 fs/devfs-core.c  | 8 +++++++-
 include/driver.h | 2 ++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/fs/devfs-core.c b/fs/devfs-core.c
index 92e7c5823ed0d3a4c54cc7b2b1c9bf32ac535907..91082265d1aaa965160de5e414364e3fb14824d1 100644
--- a/fs/devfs-core.c
+++ b/fs/devfs-core.c
@@ -476,7 +476,7 @@ int devfs_create(struct cdev *new)
 	return 0;
 }
 
-int devfs_create_link(struct cdev *cdev, const char *name)
+int devfs_create_link_node(struct cdev *cdev, const char *name, struct device_node *node)
 {
 	struct cdev *new;
 	int ret;
@@ -489,6 +489,7 @@ int devfs_create_link(struct cdev *cdev, const char *name)
 
 	new = cdev_alloc(name);
 	new->link = cdev;
+	new->device_node = node;
 
 	ret = devfs_create(new);
 	if (ret) {
@@ -512,6 +513,11 @@ int devfs_create_link(struct cdev *cdev, const char *name)
 	return 0;
 }
 
+int devfs_create_link(struct cdev *cdev, const char *name)
+{
+	return devfs_create_link_node(cdev, name, NULL);
+}
+
 int devfs_remove(struct cdev *cdev)
 {
 	struct cdev *c, *tmp;
diff --git a/include/driver.h b/include/driver.h
index c130a3cd63fd5e6dc365a33c765a22dc4e2ca90a..e0fddecd085c991db4f1fe34c56405d28b6f53ad 100644
--- a/include/driver.h
+++ b/include/driver.h
@@ -461,6 +461,8 @@ static inline const char *cdev_name(struct cdev *cdev)
 
 int devfs_create(struct cdev *);
 int devfs_create_link(struct cdev *, const char *name);
+int devfs_create_link_node(struct cdev *cdev, const char *name,
+			   struct device_node *node);
 int devfs_remove(struct cdev *);
 int cdev_find_free_index(const char *);
 struct cdev *cdev_find_partition(struct cdev *cdevm, const char *name);

-- 
2.47.3