diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c
index 12f547a..4a9ce5b 100644
--- a/drivers/irqchip/irq-sunxi-nmi.c
+++ b/drivers/irqchip/irq-sunxi-nmi.c
@@ -50,12 +50,12 @@
 static inline void sunxi_sc_nmi_write(struct irq_chip_generic *gc, u32 off,
 				      u32 val)
 {
-	irq_reg_writel(val, gc->reg_base + off);
+	irq_reg_writel(gc, val, off);
 }
 
 static inline u32 sunxi_sc_nmi_read(struct irq_chip_generic *gc, u32 off)
 {
-	return irq_reg_readl(gc->reg_base + off);
+	return irq_reg_readl(gc, off);
 }
 
 static void sunxi_sc_nmi_handle_irq(unsigned int irq, struct irq_desc *desc)