dm: core: Add a way to delete a node

Add a function to delete a node in an existing tree.

Signed-off-by: Simon Glass <[email protected]>

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 403ee06ad94..a5efedf6af3 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -1779,6 +1779,29 @@ int ofnode_add_subnode(ofnode node, const char *name, ofnode *subnodep)
 	return ret;	/* 0 or -EEXIST */
 }
 
+int ofnode_delete(ofnode *nodep)
+{
+	ofnode node = *nodep;
+	int ret;
+
+	assert(ofnode_valid(node));
+	if (ofnode_is_np(node)) {
+		ret = of_remove_node(ofnode_to_np(node));
+	} else {
+		void *fdt = ofnode_to_fdt(node);
+		int offset = ofnode_to_offset(node);
+
+		ret = fdt_del_node(fdt, offset);
+		if (ret)
+			ret = -EFAULT;
+	}
+	if (ret)
+		return ret;
+	*nodep = ofnode_null();
+
+	return 0;
+}
+
 int ofnode_copy_props(ofnode dst, ofnode src)
 {
 	struct ofprop prop;