fdt: Add fdt_del_node_and_alias helper

Add a helper function that given an alias will delete both the node
the alias points to and the alias itself

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/common/fdt_support.c b/common/fdt_support.c
index b7d4fe506..b6f252a87 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -976,3 +976,16 @@ void fdt_fixup_mtdparts(void *blob, void *node_info, int node_info_size)
 	}
 }
 #endif
+
+void fdt_del_node_and_alias(void *blob, const char *alias)
+{
+	int off = fdt_path_offset(blob, alias);
+
+	if (off < 0)
+		return;
+
+	fdt_del_node(blob, off);
+
+	off = fdt_path_offset(blob, "/aliases");
+	fdt_delprop(blob, off, alias);
+}