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authorLucas Stach <dev@lynxeye.de>2016-10-23 01:02:02 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-10-24 14:36:25 +0200
commit5c2ad982fb422ae710184e5911de0d4e030de8ac (patch)
treefdbea026abab05bc593b139ecb416aa7045e91af /drivers/usb/host
parenta4e6a8524f4327105c557eb05dd420a542d7cefc (diff)
USB: EHCI: elide I/O watchdog on AMD parts
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 <dev@lynxeye.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/ehci-pci.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 3b3649d88c5f..0ed683c176f0 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -261,6 +261,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
ehci->need_io_watchdog = 0;
break;
case PCI_VENDOR_ID_INTEL:
+ case PCI_VENDOR_ID_AMD:
ehci->need_io_watchdog = 0;
break;
case PCI_VENDOR_ID_NVIDIA: