diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ohci-exynos.c | 81 |
1 files changed, 20 insertions, 61 deletions
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 7c48e3f3146b..d28b6583ba02 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -19,11 +19,8 @@ #include <linux/of.h> #include <linux/platform_device.h> #include <linux/phy/phy.h> -#include <linux/usb/phy.h> -#include <linux/usb/samsung_usb_phy.h> #include <linux/usb.h> #include <linux/usb/hcd.h> -#include <linux/usb/otg.h> #include "ohci.h" @@ -38,9 +35,7 @@ static struct hc_driver __read_mostly exynos_ohci_hc_driver; struct exynos_ohci_hcd { struct clk *clk; - struct usb_phy *phy; - struct usb_otg *otg; - struct phy *phy_g[PHY_NUMBER]; + struct phy *phy[PHY_NUMBER]; }; static int exynos_ohci_get_phy(struct device *dev, @@ -49,15 +44,9 @@ static int exynos_ohci_get_phy(struct device *dev, struct device_node *child; struct phy *phy; int phy_number; - int ret = 0; + int ret; - /* - * Getting generic phy: - * We are keeping both types of phys as a part of transiting OHCI - * to generic phy framework, so as to maintain backward compatibilty - * with old DTB too. - * We fallback to older USB-PHYs when we fail to get generic PHYs. - */ + /* Get PHYs for the controller */ for_each_available_child_of_node(dev->of_node, child) { ret = of_property_read_u32(child, "reg", &phy_number); if (ret) { @@ -73,31 +62,21 @@ static int exynos_ohci_get_phy(struct device *dev, } phy = devm_of_phy_get(dev, child, NULL); + exynos_ohci->phy[phy_number] = phy; of_node_put(child); - if (IS_ERR(phy)) - /* Lets fallback to older USB-PHYs */ - goto usb_phy_old; - exynos_ohci->phy_g[phy_number] = phy; - /* Make the older PHYs unavailable */ - exynos_ohci->phy = ERR_PTR(-ENXIO); - } - - return 0; - -usb_phy_old: - exynos_ohci->phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); - if (IS_ERR(exynos_ohci->phy)) { - ret = PTR_ERR(exynos_ohci->phy); - if (ret != -ENXIO && ret != -ENODEV) { - dev_err(dev, "no usb2 phy configured\n"); - return ret; + if (IS_ERR(phy)) { + ret = PTR_ERR(phy); + if (ret == -EPROBE_DEFER) { + return ret; + } else if (ret != -ENOSYS && ret != -ENODEV) { + dev_err(dev, + "Error retrieving usb2 phy: %d\n", ret); + return ret; + } } - dev_dbg(dev, "Failed to get usb2 phy\n"); - } else { - exynos_ohci->otg = exynos_ohci->phy->otg; } - return ret; + return 0; } static int exynos_ohci_phy_enable(struct device *dev) @@ -107,16 +86,13 @@ static int exynos_ohci_phy_enable(struct device *dev) int i; int ret = 0; - if (!IS_ERR(exynos_ohci->phy)) - return usb_phy_init(exynos_ohci->phy); - for (i = 0; ret == 0 && i < PHY_NUMBER; i++) - if (!IS_ERR(exynos_ohci->phy_g[i])) - ret = phy_power_on(exynos_ohci->phy_g[i]); + if (!IS_ERR(exynos_ohci->phy[i])) + ret = phy_power_on(exynos_ohci->phy[i]); if (ret) for (i--; i >= 0; i--) - if (!IS_ERR(exynos_ohci->phy_g[i])) - phy_power_off(exynos_ohci->phy_g[i]); + if (!IS_ERR(exynos_ohci->phy[i])) + phy_power_off(exynos_ohci->phy[i]); return ret; } @@ -127,14 +103,9 @@ static void exynos_ohci_phy_disable(struct device *dev) struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd); int i; - if (!IS_ERR(exynos_ohci->phy)) { - usb_phy_shutdown(exynos_ohci->phy); - return; - } - for (i = 0; i < PHY_NUMBER; i++) - if (!IS_ERR(exynos_ohci->phy_g[i])) - phy_power_off(exynos_ohci->phy_g[i]); + if (!IS_ERR(exynos_ohci->phy[i])) + phy_power_off(exynos_ohci->phy[i]); } static int exynos_ohci_probe(struct platform_device *pdev) @@ -206,9 +177,6 @@ skip_phy: goto fail_io; } - if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - platform_set_drvdata(pdev, hcd); err = exynos_ohci_phy_enable(&pdev->dev); @@ -241,9 +209,6 @@ static int exynos_ohci_remove(struct platform_device *pdev) usb_remove_hcd(hcd); - if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - exynos_ohci_phy_disable(&pdev->dev); clk_disable_unprepare(exynos_ohci->clk); @@ -272,9 +237,6 @@ static int exynos_ohci_suspend(struct device *dev) if (rc) return rc; - if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - exynos_ohci_phy_disable(dev); clk_disable_unprepare(exynos_ohci->clk); @@ -290,9 +252,6 @@ static int exynos_ohci_resume(struct device *dev) clk_prepare_enable(exynos_ohci->clk); - if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - ret = exynos_ohci_phy_enable(dev); if (ret) { dev_err(dev, "Failed to enable USB phy\n"); |