dm: core: Add support for getting node from aliases

Add support for getting a node/property from aliases.
The similar functionality is provided for chosen node and this
implemenatation is copy of it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 7d1b89514c7..a68076bf351 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -476,6 +476,28 @@ ofnode ofnode_get_chosen_node(const char *name)
 	return ofnode_path(prop);
 }
 
+const void *ofnode_read_aliases_prop(const char *propname, int *sizep)
+{
+	ofnode node;
+
+	node = ofnode_path("/aliases");
+
+	return ofnode_read_prop(node, propname, sizep);
+}
+
+ofnode ofnode_get_aliases_node(const char *name)
+{
+	const char *prop;
+
+	prop = ofnode_read_aliases_prop(name, NULL);
+	if (!prop)
+		return ofnode_null();
+
+	debug("%s: node_path: %s\n", __func__, prop);
+
+	return ofnode_path(prop);
+}
+
 int ofnode_get_child_count(ofnode parent)
 {
 	ofnode child;