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Date: Mon, 23 Jun 2014 10:30:41 +0200 From: Jiri Slaby <jslaby@...e.cz> To: stable@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Denis Turischev <denis.turischev@...pulab.co.il>, Denis Turischev <denis@...pulab.co.il>, Mathias Nyman <mathias.nyman@...ux.intel.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.cz> Subject: [PATCH 3.12 006/111] xhci: Switch only Intel Lynx Point-LP ports to EHCI on shutdown. From: Denis Turischev <denis.turischev@...pulab.co.il> 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit 0a939993bff117d3657108ca13b011fc0378aedb upstream. 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@...pulab.co.il> Reported-by: Wulf Richartz <wulf.richartz@...il.com> Cc: Mathias Nyman <mathias.nyman@...ux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Signed-off-by: Jiri Slaby <jslaby@...e.cz> --- 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 17447ef59d08..f34b42e4c391 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 && -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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