diff options
Diffstat (limited to 'drivers/usb/host/ehci-platform.c')
| -rw-r--r-- | drivers/usb/host/ehci-platform.c | 50 |
1 files changed, 45 insertions, 5 deletions
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 4b1d896d5a22..764e0100b6f4 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -82,10 +82,14 @@ static int __devinit ehci_platform_probe(struct platform_device *dev) { struct usb_hcd *hcd; struct resource *res_mem; + struct usb_ehci_pdata *pdata = dev->dev.platform_data; int irq; int err = -ENOMEM; - BUG_ON(!dev->dev.platform_data); + if (!pdata) { + WARN_ON(1); + return -ENODEV; + } if (usb_disabled()) return -ENODEV; @@ -101,10 +105,18 @@ static int __devinit ehci_platform_probe(struct platform_device *dev) return -ENXIO; } + if (pdata->power_on) { + err = pdata->power_on(dev); + if (err < 0) + return err; + } + hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev, dev_name(&dev->dev)); - if (!hcd) - return -ENOMEM; + if (!hcd) { + err = -ENOMEM; + goto err_power; + } hcd->rsrc_start = res_mem->start; hcd->rsrc_len = resource_size(res_mem); @@ -116,8 +128,10 @@ static int __devinit ehci_platform_probe(struct platform_device *dev) } hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) + if (!hcd->regs) { + err = -ENOMEM; goto err_release_region; + } err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) goto err_iounmap; @@ -132,12 +146,17 @@ err_release_region: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err_put_hcd: usb_put_hcd(hcd); +err_power: + if (pdata->power_off) + pdata->power_off(dev); + return err; } static int __devexit ehci_platform_remove(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); + struct usb_ehci_pdata *pdata = dev->dev.platform_data; usb_remove_hcd(hcd); iounmap(hcd->regs); @@ -145,6 +164,9 @@ static int __devexit ehci_platform_remove(struct platform_device *dev) usb_put_hcd(hcd); platform_set_drvdata(dev, NULL); + if (pdata->power_off) + pdata->power_off(dev); + return 0; } @@ -153,14 +175,32 @@ static int __devexit ehci_platform_remove(struct platform_device *dev) static int ehci_platform_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); + struct usb_ehci_pdata *pdata = dev->platform_data; + struct platform_device *pdev = + container_of(dev, struct platform_device, dev); bool do_wakeup = device_may_wakeup(dev); + int ret; + + ret = ehci_suspend(hcd, do_wakeup); - return ehci_suspend(hcd, do_wakeup); + if (pdata->power_suspend) + pdata->power_suspend(pdev); + + return ret; } static int ehci_platform_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); + struct usb_ehci_pdata *pdata = dev->platform_data; + struct platform_device *pdev = + container_of(dev, struct platform_device, dev); + + if (pdata->power_on) { + int err = pdata->power_on(pdev); + if (err < 0) + return err; + } ehci_resume(hcd, false); return 0; |