diff options
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 9a550b6ad01d..a9f925b32b61 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -342,9 +342,14 @@ static void xhci_msix_sync_irqs(struct xhci_hcd *xhci) static int xhci_try_enable_msi(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct pci_dev *pdev; int ret; + /* The xhci platform device has set up IRQs through usb_add_hcd. */ + if (xhci->quirks & XHCI_PLAT) + return 0; + + pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); /* * Some Fresco Logic host controllers advertise MSI, but fail to * generate interrupts. Don't even try to enable MSI. |