1 files changed, 12 insertions, 15 deletions

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 5aa8bce90e1f..f3683e1da161 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
@@ -393,6 +388,7 @@ static const struct hc_driver ehci_pci_hc_driver = {
         .urb_enqueue =          ehci_urb_enqueue,
         .urb_dequeue =          ehci_urb_dequeue,
         .endpoint_disable =     ehci_endpoint_disable,
+        .endpoint_reset =       ehci_endpoint_reset,
 
         /*
          * scheduling support
@@ -429,10 +425,11 @@ static struct pci_driver ehci_pci_driver = {
 
         .probe =        usb_hcd_pci_probe,
         .remove =       usb_hcd_pci_remove,
+        .shutdown =     usb_hcd_pci_shutdown,
 
-#ifdef  CONFIG_PM
-        .suspend =      usb_hcd_pci_suspend,
-        .resume =       usb_hcd_pci_resume,
+#ifdef CONFIG_PM_SLEEP
+        .driver =       {
+                .pm =   &usb_hcd_pci_pm_ops
+        },
 #endif
-        .shutdown =     usb_hcd_pci_shutdown,
 };