diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c
index c4f719664c63bf94627e502b9abacd86aea8fbf9..4ef178078e5bd7ddf388e215eddc1bde3151b0fb 100644
--- a/drivers/irqchip/irq-sunxi-nmi.c
+++ b/drivers/irqchip/irq-sunxi-nmi.c
@@ -153,7 +153,7 @@ static int __init sunxi_sc_nmi_irq_init(struct device_node *node,
 	}
 
 	gc = irq_get_domain_generic_chip(domain, 0);
-	gc->reg_base = of_iomap(node, 0);
+	gc->reg_base = of_io_request_and_map(node, 0, of_node_full_name(node));
 	if (!gc->reg_base) {
 		pr_err("unable to map resource\n");
 		ret = -ENOMEM;