Sometimes it can be necessary to rename a node, e.g. a upstream node was
renamed and the whole board logic depends on the old naming scheme.
Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
Note:
In my v1 this patch was required for the followed, but now it isn't. So
feel free to add or drop it. IMHO it can be a useful helper in the
future.
Changelog:
v2:
- const name parameter
- free names before adding new ones
- drop unnecessary else-path
- adapt commit message
drivers/of/base.c | 18 ++++++++++++++++++
include/of.h | 5 +++++
2 files changed, 23 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index b082f0c656..48f1270baa 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2094,6 +2094,24 @@ void of_delete_node(struct device_node *node)
of_set_root_node(NULL);
}
+void of_rename_node(struct device_node *node, const char *name)
+{
+ struct device_node *parent;
+
+ if (!node)
+ return;
+
+ parent = node->parent;
+ if (parent) {
+ /* only child nodes have names */
+ free(node->name);
+ free(node->full_name);
+
+ node->name = xstrdup(name);
+ node->full_name = basprintf("%s/%s", parent->full_name, name);
+ }
+}
+
int of_device_is_stdout_path(struct device_d *dev)
{
struct device_node *dn;
diff --git a/include/of.h b/include/of.h
index 184acb4741..f829690865 100644
--- a/include/of.h
+++ b/include/of.h
@@ -158,6 +158,7 @@ extern struct device_node *of_create_node(struct device_node *root,
extern struct device_node *of_copy_node(struct device_node *parent,
const struct device_node *other);
extern void of_delete_node(struct device_node *node);
+extern void of_rename_node(struct device_node *node, const char *name);
extern const char *of_get_machine_compatible(void);
extern int of_machine_is_compatible(const char *compat);
@@ -605,6 +606,10 @@ static inline void of_delete_node(struct device_node *node)
{
}
+static inline void of_rename_node(struct device_node *node, const char *name)
+{
+}
+
static inline int of_machine_is_compatible(const char *compat)
{
return 0;
--
2.20.1
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