[PATCH 5/7] of: Add of_alias_get function
Sascha Hauer
s.hauer at pengutronix.de
Mon May 27 04:52:53 EDT 2013
This is used to retrieve the name of the alias for a given
devicenode.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
drivers/of/base.c | 13 +++++++++++++
include/of.h | 6 ++++++
2 files changed, 19 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index e2a8bb5..b58a19b 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -212,6 +212,19 @@ int of_alias_get_id(struct device_node *np, const char *stem)
}
EXPORT_SYMBOL_GPL(of_alias_get_id);
+const char *of_alias_get(struct device_node *np)
+{
+ struct property *pp;
+
+ list_for_each_entry(pp, &of_aliases->properties, list) {
+ if (!strcmp(np->full_name, pp->value))
+ return pp->name;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(of_alias_get);
+
u64 of_translate_address(struct device_node *node, const __be32 *in_addr)
{
struct property *p;
diff --git a/include/of.h b/include/of.h
index a804ec4..6c75cbd 100644
--- a/include/of.h
+++ b/include/of.h
@@ -178,6 +178,7 @@ struct cdev;
int of_parse_partitions(struct cdev *cdev, struct device_node *node);
int of_alias_get_id(struct device_node *np, const char *stem);
+const char *of_alias_get(struct device_node *np);
int of_device_is_stdout_path(struct device_d *dev);
const char *of_get_model(void);
void *of_flatten_dtb(struct device_node *node);
@@ -197,6 +198,11 @@ static inline int of_alias_get_id(struct device_node *np, const char *stem)
return -ENOENT;
}
+static inline const char *of_alias_get(struct device_node *np)
+{
+ return NULL;
+}
+
static inline int of_device_is_stdout_path(struct device_d *dev)
{
return 0;
--
1.8.2.rc2
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