From e6b0166f2106e087a197c528eb1e465071f5225b Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Mon, 27 May 2013 18:42:12 +0900 Subject: [PATCH] usb: ehci-s5p: 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 Ackked-by: Alan Stern Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-s5p.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 379037f51a2f..7cc26e621aa7 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -50,6 +50,8 @@ struct s5p_ehci_hcd { struct s5p_ehci_platdata *pdata; }; +static struct s5p_ehci_platdata empty_platdata; + #define to_s5p_ehci(hcd) (struct s5p_ehci_hcd *)(hcd_to_ehci(hcd)->priv) static void s5p_setup_vbus_gpio(struct platform_device *pdev) @@ -101,6 +103,13 @@ static int s5p_ehci_probe(struct platform_device *pdev) return -ENOMEM; } s5p_ehci = to_s5p_ehci(hcd); + + if (of_device_is_compatible(pdev->dev.of_node, + "samsung,exynos5440-ehci")) { + s5p_ehci->pdata = &empty_platdata; + goto skip_phy; + } + phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); if (IS_ERR(phy)) { /* Fallback to pdata */ @@ -116,6 +125,8 @@ static int s5p_ehci_probe(struct platform_device *pdev) s5p_ehci->otg = phy->otg; } +skip_phy: + s5p_ehci->clk = devm_clk_get(&pdev->dev, "usbhost"); if (IS_ERR(s5p_ehci->clk)) { @@ -277,6 +288,7 @@ static const struct dev_pm_ops s5p_ehci_pm_ops = { #ifdef CONFIG_OF static const struct of_device_id exynos_ehci_match[] = { { .compatible = "samsung,exynos4210-ehci" }, + { .compatible = "samsung,exynos5440-ehci" }, {}, }; MODULE_DEVICE_TABLE(of, exynos_ehci_match);