diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index 45f01d6c9ed2274bdd5a33bd108f1be64fbd5f07..739029430dda71030162336bb795848dae35f54a 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -175,7 +175,7 @@ static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data,
 {
 	struct sun4i_usb_phy_data *phy_data = to_sun4i_usb_phy_data(phy);
 	u32 temp, usbc_bit = BIT(phy->index * 2);
-	void *phyctl = phy_data->base + phy_data->cfg->phyctl_offset;
+	void __iomem *phyctl = phy_data->base + phy_data->cfg->phyctl_offset;
 	int i;
 
 	mutex_lock(&phy_data->mutex);