diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/usb/gadget/s3c-hsotg.c | 55 |
1 files changed, 39 insertions, 16 deletions
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 50b57b21d130..f39daf7a7dce 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -30,6 +30,8 @@ #include <linux/clk.h> #include <linux/regulator/consumer.h> #include <linux/of_platform.h> +#include <linux/phy/phy.h> +#include <linux/usb/phy.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -138,6 +140,7 @@ struct s3c_hsotg_ep { * @dev: The parent device supplied to the probe function * @driver: USB gadget driver * @phy: The otg phy transceiver structure for phy control. + * @uphy: The otg phy transceiver structure for old USB phy control. * @plat: The platform specific configuration data. This can be removed once * all SoCs support usb transceiver. * @regs: The memory area mapped for accessing registers. @@ -159,7 +162,8 @@ struct s3c_hsotg_ep { struct s3c_hsotg { struct device *dev; struct usb_gadget_driver *driver; - struct usb_phy *phy; + struct phy *phy; + struct usb_phy *uphy; struct s3c_hsotg_plat *plat; spinlock_t lock; @@ -2909,8 +2913,11 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg) dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev); - if (hsotg->phy) - usb_phy_init(hsotg->phy); + if (hsotg->phy) { + phy_init(hsotg->phy); + phy_power_on(hsotg->phy); + } else if (hsotg->uphy) + usb_phy_init(hsotg->uphy); else if (hsotg->plat->phy_init) hsotg->plat->phy_init(pdev, hsotg->plat->phy_type); } @@ -2926,8 +2933,11 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg) { struct platform_device *pdev = to_platform_device(hsotg->dev); - if (hsotg->phy) - usb_phy_shutdown(hsotg->phy); + if (hsotg->phy) { + phy_power_off(hsotg->phy); + phy_exit(hsotg->phy); + } else if (hsotg->uphy) + usb_phy_shutdown(hsotg->uphy); else if (hsotg->plat->phy_exit) hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type); } @@ -3534,7 +3544,8 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg) static int s3c_hsotg_probe(struct platform_device *pdev) { struct s3c_hsotg_plat *plat = dev_get_platdata(&pdev->dev); - struct usb_phy *phy; + struct phy *phy; + struct usb_phy *uphy; struct device *dev = &pdev->dev; struct s3c_hsotg_ep *eps; struct s3c_hsotg *hsotg; @@ -3549,19 +3560,26 @@ static int s3c_hsotg_probe(struct platform_device *pdev) return -ENOMEM; } - phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + /* + * Attempt to find a generic PHY, then look for an old style + * USB PHY, finally fall back to pdata + */ + phy = devm_phy_get(&pdev->dev, "usb2-phy"); if (IS_ERR(phy)) { - /* Fallback for pdata */ - plat = dev_get_platdata(&pdev->dev); - if (!plat) { - dev_err(&pdev->dev, "no platform data or transceiver defined\n"); - return -EPROBE_DEFER; - } else { + uphy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + if (IS_ERR(uphy)) { + /* Fallback for pdata */ + plat = dev_get_platdata(&pdev->dev); + if (!plat) { + dev_err(&pdev->dev, + "no platform data or transceiver defined\n"); + return -EPROBE_DEFER; + } hsotg->plat = plat; - } - } else { + } else + hsotg->uphy = uphy; + } else hsotg->phy = phy; - } hsotg->dev = dev; @@ -3628,6 +3646,9 @@ static int s3c_hsotg_probe(struct platform_device *pdev) goto err_supplies; } + if (hsotg->phy) + phy_init(hsotg->phy); + /* usb phy enable */ s3c_hsotg_phy_enable(hsotg); @@ -3721,6 +3742,8 @@ static int s3c_hsotg_remove(struct platform_device *pdev) } s3c_hsotg_phy_disable(hsotg); + if (hsotg->phy) + phy_exit(hsotg->phy); clk_disable_unprepare(hsotg->clk); return 0; |