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| author | Pekka Enberg <penberg@kernel.org> | 2010-10-24 18:57:05 +0200 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2010-10-24 18:57:05 +0200 |
| commit | 6d4121f6c20a0e86231d52f535f1c82423b3326f (patch) | |
| tree | 5c235cac699ca86b504850aa663ddadde0455a61 /drivers/usb/host/ohci-pci.c | |
| parent | SLUB: Fix memory hotplug with !NUMA (diff) | |
| parent | Merge branch 'for-2.6.37/core' of git://git.kernel.dk/linux-2.6-block (diff) | |
| download | linux-6d4121f6c20a0e86231d52f535f1c82423b3326f.tar.xz linux-6d4121f6c20a0e86231d52f535f1c82423b3326f.zip | |
Merge branch 'master' into for-linus
Conflicts:
include/linux/percpu.h
mm/percpu.c
Diffstat (limited to 'drivers/usb/host/ohci-pci.c')
| -rw-r--r-- | drivers/usb/host/ohci-pci.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 6bdc8b25a6a1..36ee9a666e93 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -201,6 +201,20 @@ static int ohci_quirk_amd700(struct usb_hcd *hcd) 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_pci_quirks[] = { 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. |