xhci: Add software BW checking quirk to Intel PPT xHCI

The xHCI host controller in the Intel Panther Point chipset needs to have
software check whether new devices will fit in the available bus
bandwidth.  Activate the software bandwidth checking quirk when we find
the right PCI device.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index cb16de213f6491bb062c41e7cd91277f9fc0b605..50d3fcf593ff0eeef0e8fcb8a8fe6c712aced98b 100644 (file)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -136,6 +136,7 @@ static int xhci_pci_setup(struct usb_hcd *hcd)
                xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
                xhci->quirks |= XHCI_EP_LIMIT_QUIRK;
                xhci->limit_active_eps = 64;
+               xhci->quirks |= XHCI_SW_BW_CHECKING;
        }
        if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
                        pdev->device == PCI_DEVICE_ID_ASROCK_P67) {