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| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2012-02-09 15:55:13 -0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2012-05-03 13:18:40 -0700 |
| commit | 1c12443ab8eba71a658fae4572147e56d1f84f66 (patch) | |
| tree | d8a143aa75c6fa6277c7fc21c65b4d76c07da8c8 /drivers/usb/host/ehci-pci.c | |
| parent | 51c9e6c7732b67769c0a514d31f505e49fa82dd4 (diff) | |
| download | op-kernel-dev-1c12443ab8eba71a658fae4572147e56d1f84f66.zip op-kernel-dev-1c12443ab8eba71a658fae4572147e56d1f84f66.tar.gz | |
xhci: Add Lynx Point to list of Intel switchable hosts.
The upcoming Intel Lynx Point chipset includes an xHCI host controller
that can have ports switched from the EHCI host controller, just like
the Intel Panther Point xHCI host. This time, ports from both EHCI
hosts can be switched to the xHCI host controller. The PCI config
registers to do the port switching are in the exact same place in the
xHCI PCI configuration registers, with the same semantics.
Hooray for shipping patches for next-gen hardware before the current gen
hardware is even available for purchase!
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: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/usb/host/ehci-pci.c')
| -rw-r--r-- | drivers/usb/host/ehci-pci.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 01bb7241d..1234817 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -360,7 +360,9 @@ static bool usb_is_intel_switchable_ehci(struct pci_dev *pdev) { return pdev->class == PCI_CLASS_SERIAL_USB_EHCI && pdev->vendor == PCI_VENDOR_ID_INTEL && - pdev->device == 0x1E26; + (pdev->device == 0x1E26 || + pdev->device == 0x8C2D || + pdev->device == 0x8C26); } static void ehci_enable_xhci_companion(void) |
