diff --git a/include/common/fdt_wrappers.h b/include/common/fdt_wrappers.h
index 9c7180c..2929fc2 100644
--- a/include/common/fdt_wrappers.h
+++ b/include/common/fdt_wrappers.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -44,6 +44,8 @@
 int fdtw_for_each_cpu(const void *fdt,
 		      int (*callback)(const void *dtb, int node, uintptr_t mpidr));
 
+int fdtw_find_or_add_subnode(void *fdt, int parentoffset, const char *name);
+
 static inline uint32_t fdt_blob_size(const void *dtb)
 {
 	const uint32_t *dtb_header = dtb;