From: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
---
Changes since v3:
- added empty_platdata as Alan Stern guided.
Changes since v2:
- changed all occurrences of s5p_ehci->pdata->phy*.
- set s5p_ehci->pdata to NULL.
Changes since v1:
- re-based on the latest 'linux-next' tree
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 379037f..7cc26e6 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);
--
1.7.10.4
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