Add a helper function to find an alias, remove it from the list of
aliases, and destroy it.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
drivers/of/base.c | 14 ++++++++++++++
include/linux/of.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 390f9e2b7b65d54b..6aafee0cfb27bd5c 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1922,6 +1922,20 @@ void of_alias_create(struct property *pp,
of_alias_add(ap, np, id, start, len);
}
+void of_alias_destroy(const char *name, void (*dt_free)(void *))
+{
+ struct alias_prop *ap;
+
+ list_for_each_entry(ap, &aliases_lookup, link) {
+ if (strcmp(ap->alias, name))
+ continue;
+
+ list_del(&ap->link);
+ dt_free(ap);
+ return;
+ }
+}
+
/**
* of_alias_scan - Scan all properties of the 'aliases' node
*
diff --git a/include/linux/of.h b/include/linux/of.h
index 0852625e4cfb3dfe..1807a95a00a84a99 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -335,6 +335,7 @@ extern int of_count_phandle_with_args(const struct device_node *np,
extern void of_alias_create(struct property *pp,
void * (*dt_alloc)(u64 size, u64 align));
+extern void of_alias_destroy(const char *name, void (*dt_free)(void *));
extern void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align));
extern int of_alias_get_id(struct device_node *np, const char *stem);
extern int of_alias_get_highest_id(const char *stem);
--
1.9.1
--
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