diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index cf8b374b892da0ce854e72c8750dfda981315dc8..831526f2e728c12b5679ab08fbcfbd6b06622033 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -737,7 +737,7 @@ static void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args,
 {
 	int i;
 
-	fwspec->fwnode = np ? &np->fwnode : NULL;
+	fwspec->fwnode = of_node_to_fwnode(np);
 	fwspec->param_count = count;
 
 	for (i = 0; i < count; i++)