diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c
index dce968151505..45ffe036dacc 100644
--- a/drivers/usb/phy/phy-samsung-usb2.c
+++ b/drivers/usb/phy/phy-samsung-usb2.c
@@ -43,7 +43,7 @@ static int samsung_usbphy_set_host(struct usb_otg *otg, struct usb_bus *host)
 	return 0;
 }
 
-static bool exynos5_phyhost_is_on(void *regs)
+static bool exynos5_phyhost_is_on(void __iomem *regs)
 {
 	u32 reg;