[ 069/123] xhci: Add Lynx Point LP to list of Intel switchable hosts

Greg Kroah-Hartman
2013-01-09T21:06:45Z

From: Russell Webb <russell.webb@linux.intel.com>

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>

---
drivers/usb/host/ehci-pci.c | 3 ++-
drivers/usb/host/pci-quirks.c | 4 +++-
2 files changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -334,7 +334,8 @@ static bool usb_is_intel_switchable_ehci
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)
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -723,6 +723,7 @@ static int handshake(void __iomem *ptr,
}

#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(st
{
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)