diff options
Diffstat (limited to 'drivers/usb/host/ehci-hub.c')
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 18d3f227031..82caf336e9b 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -30,7 +30,7 @@ #ifdef CONFIG_PM -static int ehci_hub_suspend (struct usb_hcd *hcd) +static int ehci_bus_suspend (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); int port; @@ -83,7 +83,7 @@ static int ehci_hub_suspend (struct usb_hcd *hcd) /* caller has locked the root hub, and should reset/reinit on error */ -static int ehci_hub_resume (struct usb_hcd *hcd) +static int ehci_bus_resume (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); u32 temp; @@ -94,6 +94,13 @@ static int ehci_hub_resume (struct usb_hcd *hcd) msleep(5); spin_lock_irq (&ehci->lock); + /* Ideally and we've got a real resume here, and no port's power + * was lost. (For PCI, that means Vaux was maintained.) But we + * could instead be restoring a swsusp snapshot -- so that BIOS was + * the last user of the controller, not reset/pm hardware keeping + * state we gave to it. + */ + /* re-init operational registers in case we lost power */ if (readl (&ehci->regs->intr_enable) == 0) { /* at least some APM implementations will try to deliver @@ -159,8 +166,8 @@ static int ehci_hub_resume (struct usb_hcd *hcd) #else -#define ehci_hub_suspend NULL -#define ehci_hub_resume NULL +#define ehci_bus_suspend NULL +#define ehci_bus_resume NULL #endif /* CONFIG_PM */ |