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| author | Denis Turischev <denis.turischev@compulab.co.il> | 2014-05-20 13:00:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-28 01:11:49 +0200 |
| commit | 0a939993bff117d3657108ca13b011fc0378aedb (patch) | |
| tree | 74e81e57725622b9205036a98d2defdbbf67aea4 | |
| parent | USB: delete CONFIG_USB_DEVICEFS from defconfig (diff) | |
| download | linux-0a939993bff117d3657108ca13b011fc0378aedb.tar.xz linux-0a939993bff117d3657108ca13b011fc0378aedb.zip | |
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>
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 4 |
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 && |