diff options
Diffstat (limited to 'drivers/usb/host/ehci-omap.c')
| -rw-r--r-- | drivers/usb/host/ehci-omap.c | 76 |
1 files changed, 62 insertions, 14 deletions
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 70e8e6f33d42..6b8b7e5358a6 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -4,10 +4,11 @@ * Bus Glue for the EHCI controllers in OMAP3/4 * Tested on several OMAP3 boards, and OMAP4 Pandaboard * - * Copyright (C) 2007-2011 Texas Instruments, Inc. + * Copyright (C) 2007-2013 Texas Instruments, Inc. * Author: Vikram Pandita <vikram.pandita@ti.com> * Author: Anand Gadiyar <gadiyar@ti.com> * Author: Keshava Munegowda <keshava_mgowda@ti.com> + * Author: Roger Quadros <rogerq@ti.com> * * Copyright (C) 2009 Nokia Corporation * Contact: Felipe Balbi <felipe.balbi@nokia.com> @@ -70,6 +71,10 @@ static const char hcd_name[] = "ehci-omap"; /*-------------------------------------------------------------------------*/ +struct omap_hcd { + struct usb_phy *phy[OMAP3_HS_USB_PORTS]; /* one PHY for each port */ + int nports; +}; static inline void ehci_write(void __iomem *base, u32 reg, u32 val) { @@ -178,7 +183,8 @@ static void disable_put_regulator( static struct hc_driver __read_mostly ehci_omap_hc_driver; static const struct ehci_driver_overrides ehci_omap_overrides __initdata = { - .reset = omap_ehci_init, + .reset = omap_ehci_init, + .extra_priv_size = sizeof(struct omap_hcd), }; /** @@ -190,15 +196,16 @@ static const struct ehci_driver_overrides ehci_omap_overrides __initdata = { */ static int ehci_hcd_omap_probe(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usbhs_omap_platform_data *pdata = dev->platform_data; - struct resource *res; - struct usb_hcd *hcd; - void __iomem *regs; - int ret = -ENODEV; - int irq; - int i; - char supply[7]; + struct device *dev = &pdev->dev; + struct usbhs_omap_platform_data *pdata = dev->platform_data; + struct resource *res; + struct usb_hcd *hcd; + void __iomem *regs; + int ret = -ENODEV; + int irq; + int i; + char supply[7]; + struct omap_hcd *omap; if (usb_disabled()) return -ENODEV; @@ -231,6 +238,33 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) hcd->rsrc_len = resource_size(res); hcd->regs = regs; + omap = (struct omap_hcd *)hcd_to_ehci(hcd)->priv; + omap->nports = pdata->nports; + + platform_set_drvdata(pdev, hcd); + + /* get the PHY devices if needed */ + for (i = 0 ; i < omap->nports ; i++) { + struct usb_phy *phy; + + if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) + continue; + + /* get the PHY device */ + phy = devm_usb_get_phy_dev(dev, i); + if (IS_ERR(phy) || !phy) { + ret = IS_ERR(phy) ? PTR_ERR(phy) : -ENODEV; + dev_err(dev, "Can't get PHY device for port %d: %d\n", + i, ret); + goto err_phy; + } + + omap->phy[i] = phy; + usb_phy_init(omap->phy[i]); + /* bring PHY out of suspend */ + usb_phy_set_suspend(omap->phy[i], 0); + } + /* get ehci regulator and enable */ for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) { if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) { @@ -275,6 +309,13 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) err_pm_runtime: disable_put_regulator(pdata); pm_runtime_put_sync(dev); + +err_phy: + for (i = 0; i < omap->nports; i++) { + if (omap->phy[i]) + usb_phy_shutdown(omap->phy[i]); + } + usb_put_hcd(hcd); return ret; @@ -291,13 +332,20 @@ err_pm_runtime: */ static int ehci_hcd_omap_remove(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usb_hcd *hcd = dev_get_drvdata(dev); + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct omap_hcd *omap = (struct omap_hcd *)hcd_to_ehci(hcd)->priv; + int i; usb_remove_hcd(hcd); disable_put_regulator(dev->platform_data); - usb_put_hcd(hcd); + for (i = 0; i < omap->nports; i++) { + if (omap->phy[i]) + usb_phy_shutdown(omap->phy[i]); + } + + usb_put_hcd(hcd); pm_runtime_put_sync(dev); pm_runtime_disable(dev); |