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authorDenis Turischev <denis.turischev@compulab.co.il>2014-05-20 14:00:42 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-05-27 16:11:49 -0700
commit0a939993bff117d3657108ca13b011fc0378aedb (patch)
tree74e81e57725622b9205036a98d2defdbbf67aea4 /drivers/usb/host/xhci-pci.c
parent3a0d89d3f80df15fee3802e030d51f1848269a01 (diff)
downloadlinux-stericsson-0a939993bff117d3657108ca13b011fc0378aedb.tar.gz
xhci: Switch only Intel Lynx Point-LP ports to EHCI on shutdown.
Patch "xhci: Switch Intel Lynx Point ports to EHCI on shutdown." commit c09ec25d3684cad74d851c0f028a495999591279 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>
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
-rw-r--r--drivers/usb/host/xhci-pci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index ffd119eb3e29..e20520f42753 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -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 &&