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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 <thomas.ab@samsung.com>
Ackked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Abraham 2013-05-27 18:42:12 +09:00 committed by Greg Kroah-Hartman
parent 715cf92aeb
commit e6b0166f21
1 changed files with 12 additions and 0 deletions
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12
drivers/usb/host/ehci-s5p.c
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@ -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);