xhci: no switching back on non-ULT Haswell

commit b45abacde3d551c6696c6738bef4a1805d0bf27a upstream.

The switch back is limited to ULT even on HP. The contrary
finding arose by bad luck in BIOS versions for testing.
This fixes spontaneous resume from S3 on some HP laptops.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index e9ce957..0419684 100644 (file)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -118,20 +118,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
                xhci->quirks |= XHCI_SPURIOUS_REBOOT;
                xhci->quirks |= XHCI_AVOID_BEI;
        }
-       if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
-           (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI ||
-            pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI)) {
-               /* Workaround for occasional spurious wakeups from S5 (or
-                * 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 &&
                        pdev->device == PCI_DEVICE_ID_ASROCK_P67) {
                xhci->quirks |= XHCI_RESET_ON_RESUME;