Commit e6b0166f authored by Thomas Abraham's avatar Thomas Abraham Committed by Greg Kroah-Hartman
Browse files

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: default avatarThomas Abraham <thomas.ab@samsung.com>
Ackked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarJingoo Han <jg1.han@samsung.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 715cf92a

drivers/usb/host/ehci-s5p.c

+12 −0
Original line number Diff line number Diff line
@@ -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);

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