fdt: Add new fdt_create_phandle helper
Add a helper function that will return a phandle value for the given
node. If the node doesn't have a phandle already one will be created.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
diff --git a/common/fdt_support.c b/common/fdt_support.c
index 8f7323d..46aa842 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -1235,6 +1235,26 @@
return ret;
}
+/*
+ * fdt_create_phandle: Create a phandle property for the given node
+ *
+ * @fdt: ptr to device tree
+ * @nodeoffset: node to update
+ */
+int fdt_create_phandle(void *fdt, int nodeoffset)
+{
+ /* see if there is a phandle already */
+ int phandle = fdt_get_phandle(fdt, nodeoffset);
+
+ /* if we got 0, means no phandle so create one */
+ if (phandle == 0) {
+ phandle = fdt_alloc_phandle(fdt);
+ fdt_set_phandle(fdt, nodeoffset, phandle);
+ }
+
+ return phandle;
+}
+
#if defined(CONFIG_VIDEO)
int fdt_add_edid(void *blob, const char *compat, unsigned char *edid_buf)
{