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xhci: Regression fix for 3.13

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Hi Greg,
 
 In 3.12-rc5, I merged a patch that was supposed to fix spurious reboots on
 shutdown on HP systems.  The quirk was broadly applied to all Intel Haswell and
 Haswell ULT systems.  Turns out the quirk caused non-HP systems to reboot on
 suspend.  They shutdown just fine with the quirk patch reverted.  This patch
 narrows the xHCI quirk to only run on HP systems.
 
 Sometimes fixing firmware issues feels like plugging holes in a leaky boat.
 
 Sarah Sharp
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Merge tag 'for-usb-linus-2013-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus

Sarah writes:

xhci: Regression fix for 3.13

Hi Greg,

In 3.12-rc5, I merged a patch that was supposed to fix spurious reboots on
shutdown on HP systems.  The quirk was broadly applied to all Intel Haswell and
Haswell ULT systems.  Turns out the quirk caused non-HP systems to reboot on
suspend.  They shutdown just fine with the quirk patch reverted.  This patch
narrows the xHCI quirk to only run on HP systems.

Sometimes fixing firmware issues feels like plugging holes in a leaky boat.

Sarah Sharp
This commit is contained in:
Greg Kroah-Hartman 2013-12-10 12:48:15 -08:00
commit 1caab68bff
1 changed files with 6 additions and 1 deletions
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5
drivers/usb/host/xhci-pci.c
View File

@ -128,6 +128,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
* any other sleep) on Haswell machines with LPT and LPT-LP
* with the new Intel BIOS
*/
/* Limit the quirk to only known vendors, as this triggers
* yet another BIOS bug on some other machines
* https://bugzilla.kernel.org/show_bug.cgi?id=66171
*/
if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)
xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
}
if (pdev->vendor == PCI_VENDOR_ID_ETRON &&