diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 3fd084357488..30e764b6cbcc 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -195,10 +195,10 @@ static int pcie_phy_wait_ack(struct imx6_pcie *imx6_pcie, int addr)
 }
 
 /* Read from the 16-bit PCIe PHY control registers (not memory-mapped) */
-static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, int *data)
+static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, u16 *data)
 {
 	struct dw_pcie *pci = imx6_pcie->pci;
-	u32 val, phy_ctl;
+	u32 phy_ctl;
 	int ret;
 
 	ret = pcie_phy_wait_ack(imx6_pcie, addr);
@@ -213,8 +213,7 @@ static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, int *data)
 	if (ret)
 		return ret;
 
-	val = dw_pcie_readl_dbi(pci, PCIE_PHY_STAT);
-	*data = val & 0xffff;
+	*data = dw_pcie_readl_dbi(pci, PCIE_PHY_STAT);
 
 	/* deassert Read signal */
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, 0x00);
@@ -222,7 +221,7 @@ static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, int *data)
 	return pcie_phy_poll_ack(imx6_pcie, false);
 }
 
-static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, int data)
+static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 {
 	struct dw_pcie *pci = imx6_pcie->pci;
 	u32 var;
@@ -279,7 +278,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, int data)
 
 static void imx6_pcie_reset_phy(struct imx6_pcie *imx6_pcie)
 {
-	u32 tmp;
+	u16 tmp;
 
 	if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
 		return;
@@ -675,7 +674,7 @@ static int imx6_setup_phy_mpll(struct imx6_pcie *imx6_pcie)
 {
 	unsigned long phy_rate = clk_get_rate(imx6_pcie->pcie_phy);
 	int mult, div;
-	u32 val;
+	u16 val;
 
 	if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
 		return 0;