diff --git a/plat/allwinner/sun50i_a64/sunxi_power.c b/plat/allwinner/sun50i_a64/sunxi_power.c
index 6e84bf7..fb3783a 100644
--- a/plat/allwinner/sun50i_a64/sunxi_power.c
+++ b/plat/allwinner/sun50i_a64/sunxi_power.c
@@ -246,9 +246,7 @@
 	}
 
 	/* iterate over all regulators to find used ones */
-	for (node = fdt_first_subnode(fdt, node);
-	     node >= 0;
-	     node = fdt_next_subnode(fdt, node)) {
+	fdt_for_each_subnode(node, fdt, node) {
 		const struct axp_regulator *reg;
 		const char *name;
 		int length;