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authorRussell Webb <russell.webb@linux.intel.com>2012-11-09 13:58:49 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-11 09:06:58 -0800
commit66f8b956aeeeea9e5b3024f860251687f13f9013 (patch)
treed8251188001a93b7193404a311eb31700368ba39
parent4b2e61048c2c51882dc268dc2916a5b3bfab00ea (diff)
xhci: Add Lynx Point LP to list of Intel switchable hosts
commit bb1e5dd7113d2fd178d3af9aca8f480ae0468edf upstream. Like Lynx Point, Lynx Point LP is also switchable. See 1c12443ab8eba71a658fae4572147e56d1f84f66 for more details. This patch should be backported to stable kernels as old as 3.0, that contain commit 69e848c2090aebba5698a1620604c7dccb448684 "Intel xhci: Support EHCI/xHCI port switching." Signed-off-by: Russell Webb <russell.webb@linux.intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/ehci-pci.c3
-rw-r--r--drivers/usb/host/pci-quirks.c4
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 123481793a4..0909783a034 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -362,7 +362,8 @@ static bool usb_is_intel_switchable_ehci(struct pci_dev *pdev)
pdev->vendor == PCI_VENDOR_ID_INTEL &&
(pdev->device == 0x1E26 ||
pdev->device == 0x8C2D ||
- pdev->device == 0x8C26);
+ pdev->device == 0x8C26 ||
+ pdev->device == 0x9C26);
}
static void ehci_enable_xhci_companion(void)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 39f9e4a9a2d..eb5563ac58b 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -723,6 +723,7 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done,
}
#define PCI_DEVICE_ID_INTEL_LYNX_POINT_XHCI 0x8C31
+#define PCI_DEVICE_ID_INTEL_LYNX_POINT_LP_XHCI 0x9C31
bool usb_is_intel_ppt_switchable_xhci(struct pci_dev *pdev)
{
@@ -736,7 +737,8 @@ bool usb_is_intel_lpt_switchable_xhci(struct pci_dev *pdev)
{
return pdev->class == PCI_CLASS_SERIAL_USB_XHCI &&
pdev->vendor == PCI_VENDOR_ID_INTEL &&
- pdev->device == PCI_DEVICE_ID_INTEL_LYNX_POINT_XHCI;
+ (pdev->device == PCI_DEVICE_ID_INTEL_LYNX_POINT_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_LYNX_POINT_LP_XHCI);
}
bool usb_is_intel_switchable_xhci(struct pci_dev *pdev)