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 <de...@compulab.co.il>
Reported-by: Wulf Richartz <wulf.richa...@gmail.com>
---
drivers/usb/host/xhci-pci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 08a5f92..d25987e 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 &&
--
1.8.1.2
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