Merge tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

USB bugfixes for 3.3-rc4

A number of new device ids, and a cleanup/fix for some of the option
device ids that shouldn't have been added in the first place.

There's also a few USB 3 fixes for problems that people have reported,
and a usb-storage bugfix to round it out.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

* tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: Added Kamstrup VID/PIDs to cp210x serial driver.
  USB: Serial: ti_usb_3410_5052: Add Abbot Diabetes Care cable id
  usb-storage: fix freezing of the scanning thread
  xhci: Fix encoding for HS bulk/control NAK rate.
  USB: Set hub depth after USB3 hub reset
  USB: Fix handoff when BIOS disables host PCI device.
  USB: option: cleanup zte 3g-dongle's pid in option.c
  USB: Don't fail USB3 probe on missing legacy PCI IRQ.
  xhci: Fix oops caused by more USB2 ports than USB3 ports.
  USB: Remove duplicate USB 3.0 hub feature #defines.

1 files changed, 17 insertions, 13 deletions

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index a0613d8f9be7..265c2f675d04 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -705,10 +705,26 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
         if (type == HUB_INIT3)
                 goto init3;
 
-        /* After a resume, port power should still be on.
+        /* The superspeed hub except for root hub has to use Hub Depth
+         * value as an offset into the route string to locate the bits
+         * it uses to determine the downstream port number. So hub driver
+         * should send a set hub depth request to superspeed hub after
+         * the superspeed hub is set configuration in initialization or
+         * reset procedure.
+         *
+         * After a resume, port power should still be on.
          * For any other type of activation, turn it on.
          */
         if (type != HUB_RESUME) {
+                if (hdev->parent && hub_is_superspeed(hdev)) {
+                        ret = usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
+                                        HUB_SET_DEPTH, USB_RT_HUB,
+                                        hdev->level - 1, 0, NULL, 0,
+                                        USB_CTRL_SET_TIMEOUT);
+                        if (ret < 0)
+                                dev_err(hub->intfdev,
+                                                "set hub depth failed\n");
+                }
 
                 /* Speed up system boot by using a delayed_work for the
                  * hub's initial power-up delays.  This is pretty awkward
@@ -987,18 +1003,6 @@ static int hub_configure(struct usb_hub *hub,
                 goto fail;
         }
 
-        if (hub_is_superspeed(hdev) && (hdev->parent != NULL)) {
-                ret = usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
-                                HUB_SET_DEPTH, USB_RT_HUB,
-                                hdev->level - 1, 0, NULL, 0,
-                                USB_CTRL_SET_TIMEOUT);
-
-                if (ret < 0) {
-                        message = "can't set hub depth";
-                        goto fail;
-                }
-        }
-
         /* Request the entire hub descriptor.
          * hub->descriptor can handle USB_MAXCHILDREN ports,
          * but the hub can/will return fewer bytes here.