mirror of https://gitee.com/openkylin/linux.git
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:
parent
715cf92aeb
commit
e6b0166f21
|
@ -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);
|
||||
|
|
Loading…
Reference in New Issue