1 files changed, 7 insertions, 11 deletions

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index ead5f4f2aa5a..d43d176161aa 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -109,6 +109,9 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
                 return retval;
 
         switch (pdev->vendor) {
+        case PCI_VENDOR_ID_NEC:
+                ehci->need_io_watchdog = 0;
+                break;
         case PCI_VENDOR_ID_INTEL:
                 ehci->need_io_watchdog = 0;
                 if (pdev->device == 0x27cc) {
@@ -284,23 +287,15 @@ static int ehci_pci_suspend(struct usb_hcd *hcd)
                 msleep(10);
 
         /* Root hub was already suspended. Disable irq emission and
-         * mark HW unaccessible, bail out if RH has been resumed. Use
-         * the spinlock to properly synchronize with possible pending
-         * RH suspend or resume activity.
-         *
-         * This is still racy as hcd->state is manipulated outside of
-         * any locks =P But that will be a different fix.
+         * mark HW unaccessible.  The PM and USB cores make sure that
+         * the root hub is either suspended or stopped.
          */
         spin_lock_irqsave (&ehci->lock, flags);
-        if (hcd->state != HC_STATE_SUSPENDED) {
-                rc = -EINVAL;
-                goto bail;
-        }
+        ehci_prepare_ports_for_controller_suspend(ehci);
         ehci_writel(ehci, 0, &ehci->regs->intr_enable);
         (void)ehci_readl(ehci, &ehci->regs->intr_enable);
 
         clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
- bail:
         spin_unlock_irqrestore (&ehci->lock, flags);
 
         // could save FLADJ in case of Vaux power loss
@@ -330,6 +325,7 @@ static int ehci_pci_resume(struct usb_hcd *hcd, bool hibernated)
                                 !hibernated) {
                 int     mask = INTR_MASK;
 
+                ehci_prepare_ports_for_controller_resume(ehci);
                 if (!hcd->self.root_hub->do_remote_wakeup)
                         mask &= ~STS_PCD;
                 ehci_writel(ehci, mask, &ehci->regs->intr_enable);