Merge remote-tracking branch 'ipsec/master'

[karo-tx-linux.git] / drivers / usb / host / xhci-pci.c

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 236c3aabe94083ab5c1829241a46a20d39829587..b8dffd59eb256e52786328e5e4f1919846a80d9c 100644 (file)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -35,6 +35,9 @@
 #define PCI_VENDOR_ID_ETRON            0x1b6f
 #define PCI_DEVICE_ID_ASROCK_P67       0x7023
 
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI     0x8c31
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI  0x9c31
+
 static const char hcd_name[] = "xhci_hcd";
 
 /* called after powerup, by probe or system-pm "wakeup" */
@@ -69,6 +72,14 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
                                "QUIRK: Fresco Logic xHC needs configure"
                                " endpoint cmd after reset endpoint");
                }
+               if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
+                               pdev->revision == 0x4) {
+                       xhci->quirks |= XHCI_SLOW_SUSPEND;
+                       xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
+                               "QUIRK: Fresco Logic xHC revision %u"
+                               "must be suspended extra slowly",
+                               pdev->revision);
+               }
                /* Fresco Logic confirms: all revisions of this chip do not
                 * support MSI, even though some of them claim to in their PCI
                 * capabilities.
@@ -110,6 +121,15 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
                xhci->quirks |= XHCI_SPURIOUS_REBOOT;
                xhci->quirks |= XHCI_AVOID_BEI;
        }
+       if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
+           (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI ||
+            pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI)) {
+               /* Workaround for occasional spurious wakeups from S5 (or
+                * any other sleep) on Haswell machines with LPT and LPT-LP
+                * with the new Intel BIOS
+                */
+               xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
+       }
        if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
                        pdev->device == PCI_DEVICE_ID_ASROCK_P67) {
                xhci->quirks |= XHCI_RESET_ON_RESUME;
@@ -217,6 +237,11 @@ static void xhci_pci_remove(struct pci_dev *dev)
                usb_put_hcd(xhci->shared_hcd);
        }
        usb_hcd_pci_remove(dev);
+
+       /* Workaround for spurious wakeups at shutdown with HSW */
+       if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
+               pci_set_power_state(dev, PCI_D3hot);
+
        kfree(xhci);
 }