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xhci: Switch only Intel Lynx Point-LP ports to EHCI on shutdown. 

Patch "xhci: Switch Intel Lynx Point ports to EHCI on shutdown."
commit c09ec25d36 is not fully correct

It switches both Lynx Point and Lynx Point-LP ports to EHCI on shutdown.
On some Lynx Point machines it causes spurious interrupt,
which wake the system: bugzilla.kernel.org/show_bug.cgi?id=76291

On Lynx Point-LP on the contrary switching ports to EHCI seems to be
necessary to fix these spurious interrupts.

Signed-off-by: Denis Turischev <denis@compulab.co.il>
Reported-by: Wulf Richartz <wulf.richartz@gmail.com>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Denis Turischev 2014-05-20 14:00:42 +03:00 committed by Greg Kroah-Hartman
parent 3a0d89d3f8
commit 0a939993bf
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/host/xhci-pci.c
View File

@ -134,7 +134,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
*/
if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)
xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
}
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
xhci->quirks |= XHCI_SPURIOUS_REBOOT;
}
if (pdev->vendor == PCI_VENDOR_ID_ETRON &&