Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (172 commits)
  USB: Add support for SuperSpeed isoc endpoints
  xhci: Clean up cycle bit math used during stalls.
  xhci: Fix cycle bit calculation during stall handling.
  xhci: Update internal dequeue pointers after stalls.
  USB: Disable auto-suspend for USB 3.0 hubs.
  USB: Remove bogus USB_PORT_STAT_SUPER_SPEED symbol.
  xhci: Return canceled URBs immediately when host is halted.
  xhci: Fixes for suspend/resume of shared HCDs.
  xhci: Fix re-init on power loss after resume.
  xhci: Make roothub functions deal with device removal.
  xhci: Limit roothub ports to 15 USB3 & 31 USB2 ports.
  xhci: Return a USB 3.0 hub descriptor for USB3 roothub.
  xhci: Register second xHCI roothub.
  xhci: Change xhci_find_slot_id_by_port() API.
  xhci: Refactor bus suspend state into a struct.
  xhci: Index with a port array instead of PORTSC addresses.
  USB: Set usb_hcd->state and flags for shared roothubs.
  usb: Make core allocate resources per PCI-device.
  usb: Store bus type in usb_hcd, not in driver flags.
  usb: Change usb_hcd->bandwidth_mutex to a pointer.
  ...

1 files changed, 27 insertions, 5 deletions

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 8a515f0d5988..d05ea03cfb4d 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -106,6 +106,27 @@ static void ehci_handover_companion_ports(struct ehci_hcd *ehci)
         ehci->owned_ports = 0;
 }
 
+static int ehci_port_change(struct ehci_hcd *ehci)
+{
+        int i = HCS_N_PORTS(ehci->hcs_params);
+
+        /* First check if the controller indicates a change event */
+
+        if (ehci_readl(ehci, &ehci->regs->status) & STS_PCD)
+                return 1;
+
+        /*
+         * Not all controllers appear to update this while going from D3 to D0,
+         * so check the individual port status registers as well
+         */
+
+        while (i--)
+                if (ehci_readl(ehci, &ehci->regs->port_status[i]) & PORT_CSC)
+                        return 1;
+
+        return 0;
+}
+
 static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
                 bool suspending, bool do_wakeup)
 {
@@ -173,7 +194,7 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
         }
 
         /* Does the root hub have a port wakeup pending? */
-        if (!suspending && (ehci_readl(ehci, &ehci->regs->status) & STS_PCD))
+        if (!suspending && ehci_port_change(ehci))
                 usb_hcd_resume_root_hub(ehci_to_hcd(ehci));
 
         spin_unlock_irqrestore(&ehci->lock, flags);
@@ -538,14 +559,15 @@ static ssize_t store_companion(struct device *dev,
 }
 static DEVICE_ATTR(companion, 0644, show_companion, store_companion);
 
-static inline void create_companion_file(struct ehci_hcd *ehci)
+static inline int create_companion_file(struct ehci_hcd *ehci)
 {
-        int     i;
+        int     i = 0;
 
         /* with integrated TT there is no companion! */
         if (!ehci_is_TDI(ehci))
                 i = device_create_file(ehci_to_hcd(ehci)->self.controller,
                                        &dev_attr_companion);
+        return i;
 }
 
 static inline void remove_companion_file(struct ehci_hcd *ehci)
@@ -695,8 +717,8 @@ ehci_hub_descriptor (
         desc->bDescLength = 7 + 2 * temp;
 
         /* two bitmaps:  ports removable, and usb 1.0 legacy PortPwrCtrlMask */
-        memset (&desc->bitmap [0], 0, temp);
-        memset (&desc->bitmap [temp], 0xff, temp);
+        memset(&desc->u.hs.DeviceRemovable[0], 0, temp);
+        memset(&desc->u.hs.DeviceRemovable[temp], 0xff, temp);
 
         temp = 0x0008;                  /* per-port overcurrent reporting */
         if (HCS_PPC (ehci->hcs_params))