On Fri, 3 Jun 2016, Lucas Stach wrote:

> This removes 10 timer wakeups per second. I'm running this patch for
> a while now and haven't spotted any adverse effects.
> 
> Signed-off-by: Lucas Stach <[email protected]>
> ---
>  drivers/usb/host/ehci-pci.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
> index 3b3649d..0cec9f9 100644
> --- a/drivers/usb/host/ehci-pci.c
> +++ b/drivers/usb/host/ehci-pci.c
> @@ -263,6 +263,9 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
>       case PCI_VENDOR_ID_INTEL:
>               ehci->need_io_watchdog = 0;
>               break;
> +     case PCI_VENDOR_ID_AMD:
> +             ehci->need_io_watchdog = 0;
> +             break;
>       case PCI_VENDOR_ID_NVIDIA:
>               switch (pdev->device) {
>               /* MCP89 chips on the MacBookAir3,1 give EPROTO when

Please merge the PCI_VENDOR_ID_AMD case with the PCI_VENDOR_ID_INTEL 
case.

Alan Stern

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