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path: root/drivers/usb/host/ehci-platform.c
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Diffstat (limited to 'drivers/usb/host/ehci-platform.c')
-rw-r--r--drivers/usb/host/ehci-platform.c50
1 files changed, 45 insertions, 5 deletions
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 4b1d896d5a2..764e0100b6f 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;