--- drivers/usb/host/ohci-pci.c

+++ drivers/usb/host/ohci-pci.c

@@ -201,6 +201,20 @@ static int ohci_quirk_amd700(struct usb_

return 0;

}

+/* nVidia controllers continue to drive Reset signalling on the bus

+ * even after system shutdown, wasting power. This flag tells the

+ * shutdown routine to leave the controller OPERATIONAL instead of RESET.

+ */

+static int ohci_quirk_nvidia_shutdown(struct usb_hcd *hcd)

+{

+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);

+

+ ohci->flags |= OHCI_QUIRK_SHUTDOWN;

+ ohci_dbg(ohci, "enabled nVidia shutdown quirk\n");

+

+ return 0;

+}

+

/*

* The hardware normally enables the A-link power management feature, which

* lets the system lower the power consumption in idle states.

@@ -332,6 +346,10 @@ static const struct pci_device_id ohci_p

PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4399),

.driver_data = (unsigned long)ohci_quirk_amd700,

},

+ {

+ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),

+ .driver_data = (unsigned long) ohci_quirk_nvidia_shutdown,

+ },

/* FIXME for some of the early AMD 760 southbridges, OHCI

* won't work at all. blacklist them.