3 files changed, 19 insertions, 23 deletions

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 8172383e8908..e74948898f76 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -268,7 +268,7 @@ done:
  * Also they depend on separate root hub suspend/resume.
  */
 
-static int ehci_pci_suspend(struct usb_hcd *hcd, pm_message_t message)
+static int ehci_pci_suspend(struct usb_hcd *hcd)
 {
         struct ehci_hcd         *ehci = hcd_to_ehci(hcd);
         unsigned long           flags;
@@ -293,12 +293,6 @@ static int ehci_pci_suspend(struct usb_hcd *hcd, pm_message_t message)
         ehci_writel(ehci, 0, &ehci->regs->intr_enable);
         (void)ehci_readl(ehci, &ehci->regs->intr_enable);
 
-        /* make sure snapshot being resumed re-enumerates everything */
-        if (message.event == PM_EVENT_PRETHAW) {
-                ehci_halt(ehci);
-                ehci_reset(ehci);
-        }
-
         clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
  bail:
         spin_unlock_irqrestore (&ehci->lock, flags);
@@ -309,7 +303,7 @@ static int ehci_pci_suspend(struct usb_hcd *hcd, pm_message_t message)
         return rc;
 }
 
-static int ehci_pci_resume(struct usb_hcd *hcd)
+static int ehci_pci_resume(struct usb_hcd *hcd, bool hibernated)
 {
         struct ehci_hcd         *ehci = hcd_to_ehci(hcd);
         struct pci_dev          *pdev = to_pci_dev(hcd->self.controller);
@@ -322,10 +316,12 @@ static int ehci_pci_resume(struct usb_hcd *hcd)
         /* Mark hardware accessible again as we are out of D3 state by now */
         set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 
-        /* If CF is still set, we maintained PCI Vaux power.
+        /* If CF is still set and we aren't resuming from hibernation
+         * then we maintained PCI Vaux power.
          * Just undo the effect of ehci_pci_suspend().
          */
-        if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF) {
+        if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF &&
+                                !hibernated) {
                 int     mask = INTR_MASK;
 
                 if (!hcd->self.root_hub->do_remote_wakeup)
@@ -335,7 +331,6 @@ static int ehci_pci_resume(struct usb_hcd *hcd)
                 return 0;
         }
 
-        ehci_dbg(ehci, "lost power, restarting\n");
         usb_root_hub_lost_power(hcd->self.root_hub);
 
         /* Else reset, to cope with power loss or flush-to-storage
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index ee0a68ca5fda..d2ba04dd785e 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -372,7 +372,7 @@ static int __devinit ohci_pci_start (struct usb_hcd *hcd)
 
 #ifdef  CONFIG_PM
 
-static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
+static int ohci_pci_suspend(struct usb_hcd *hcd)
 {
         struct ohci_hcd *ohci = hcd_to_ohci (hcd);
         unsigned long   flags;
@@ -394,10 +394,6 @@ static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
         ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
         (void)ohci_readl(ohci, &ohci->regs->intrdisable);
 
-        /* make sure snapshot being resumed re-enumerates everything */
-        if (message.event == PM_EVENT_PRETHAW)
-                ohci_usb_reset(ohci);
-
         clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
  bail:
         spin_unlock_irqrestore (&ohci->lock, flags);
@@ -406,9 +402,14 @@ static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
 }
 
 
-static int ohci_pci_resume (struct usb_hcd *hcd)
+static int ohci_pci_resume(struct usb_hcd *hcd, bool hibernated)
 {
         set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+        /* Make sure resume from hibernation re-enumerates everything */
+        if (hibernated)
+                ohci_usb_reset(hcd_to_ohci(hcd));
+
         ohci_finish_controller_resume(hcd);
         return 0;
 }
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index c0133211e3ec..274751b4409c 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -769,7 +769,7 @@ static int uhci_rh_resume(struct usb_hcd *hcd)
         return rc;
 }
 
-static int uhci_pci_suspend(struct usb_hcd *hcd, pm_message_t message)
+static int uhci_pci_suspend(struct usb_hcd *hcd)
 {
         struct uhci_hcd *uhci = hcd_to_uhci(hcd);
         int rc = 0;
@@ -795,10 +795,6 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, pm_message_t message)
 
         /* FIXME: Enable non-PME# remote wakeup? */
 
-        /* make sure snapshot being resumed re-enumerates everything */
-        if (message.event == PM_EVENT_PRETHAW)
-                uhci_hc_died(uhci);
-
 done_okay:
         clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 done:
@@ -806,7 +802,7 @@ done:
         return rc;
 }
 
-static int uhci_pci_resume(struct usb_hcd *hcd)
+static int uhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
 {
         struct uhci_hcd *uhci = hcd_to_uhci(hcd);
 
@@ -820,6 +816,10 @@ static int uhci_pci_resume(struct usb_hcd *hcd)
 
         spin_lock_irq(&uhci->lock);
 
+        /* Make sure resume from hibernation re-enumerates everything */
+        if (hibernated)
+                uhci_hc_died(uhci);
+
         /* FIXME: Disable non-PME# remote wakeup? */
 
         /* The firmware or a boot kernel may have changed the controller