usb: ohci-exynos: skip phy setup for Exynos5440 based platforms

Exynos5440 does not require any explict USB phy configuration. So skip
the USB phy configuration for Exynos5440 based platforms.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 4b469e050208..509fa515248c 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -34,7 +34,7 @@ static void exynos_ohci_phy_enable(struct exynos_ohci_hcd *exynos_ohci)
 
         if (exynos_ohci->phy)
                 usb_phy_init(exynos_ohci->phy);
-        else if (exynos_ohci->pdata->phy_init)
+        else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_init)
                 exynos_ohci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
 }
 
@@ -44,7 +44,7 @@ static void exynos_ohci_phy_disable(struct exynos_ohci_hcd *exynos_ohci)
 
         if (exynos_ohci->phy)
                 usb_phy_shutdown(exynos_ohci->phy);
-        else if (exynos_ohci->pdata->phy_exit)
+        else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_exit)
                 exynos_ohci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
 }
 
@@ -127,6 +127,10 @@ static int exynos_ohci_probe(struct platform_device *pdev)
         if (!exynos_ohci)
                 return -ENOMEM;
 
+        if (of_device_is_compatible(pdev->dev.of_node,
+                                        "samsung,exynos5440-ohci"))
+                goto skip_phy;
+
         phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
         if (IS_ERR(phy)) {
                 /* Fallback to pdata */
@@ -141,6 +145,8 @@ static int exynos_ohci_probe(struct platform_device *pdev)
                 exynos_ohci->otg = phy->otg;
         }
 
+skip_phy:
+
         exynos_ohci->dev = &pdev->dev;
 
         hcd = usb_create_hcd(&exynos_ohci_hc_driver, &pdev->dev,
@@ -311,6 +317,7 @@ static const struct dev_pm_ops exynos_ohci_pm_ops = {
 #ifdef CONFIG_OF
 static const struct of_device_id exynos_ohci_match[] = {
         { .compatible = "samsung,exynos4210-ohci" },
+        { .compatible = "samsung,exynos5440-ohci" },
         {},
 };
 MODULE_DEVICE_TABLE(of, exynos_ohci_match);