Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (120 commits)
  usb: don't update devnum for wusb devices
  wusb: make ep0_reinit available for modules
  wusb: devices dont use a set address
  wusb: teach choose_address() about wireless devices
  wusb: add link wusb-usb device
  wusb: add authenticathed bit to usb_dev
  USB: remove unnecessary type casting of urb->context
  usb serial: more fixes and groundwork for tty changes
  USB: replace remaining __FUNCTION__ occurrences
  USB: usbfs: export the URB_NO_INTERRUPT flag to userspace
  USB: fix compile problems in ehci-hcd
  USB: ehci: qh_completions cleanup and bugfix
  USB: cdc-acm: signedness fix
  USB: add documentation about callbacks
  USB: don't explicitly reenable root-hub status interrupts
  USB: OHCI: turn off RD when remote wakeup is disabled
  USB: HCDs use the do_remote_wakeup flag
  USB: g_file_storage: ignore bulk-out data after invalid CBW
  USB: serial: remove endpoints setting checks from core and header
  USB: serial: remove unneeded number endpoints settings
  ...

15 files changed, 443 insertions, 280 deletions

diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index a2b0aa48b8e..cc9f397e839 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -76,8 +76,8 @@ config USB_DEVICE_CLASS
 	    NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0644"
 
 config USB_DYNAMIC_MINORS
-	bool "Dynamic USB minor allocation (EXPERIMENTAL)"
-	depends on USB && EXPERIMENTAL
+	bool "Dynamic USB minor allocation"
+	depends on USB
 	help
 	  If you say Y here, the USB subsystem will use dynamic minor
 	  allocation for any device that uses the USB major number.
@@ -102,31 +102,6 @@ config USB_SUSPEND
 
 	  If you are unsure about this, say N here.
 
-config USB_PERSIST
-	bool "USB device persistence during system suspend (DANGEROUS)"
-	depends on USB && PM && EXPERIMENTAL
-	default n
-	help
-
-	  If you say Y here and enable the "power/persist" attribute
-	  for a USB device, the device's data structures will remain
-	  persistent across system suspend, even if the USB bus loses
-	  power.  (This includes hibernation, also known as swsusp or
-	  suspend-to-disk.)  The devices will reappear as if by magic
-	  when the system wakes up, with no need to unmount USB
-	  filesystems, rmmod host-controller drivers, or do anything
-	  else.
-
-	  	WARNING: This option can be dangerous!
-
-	  If a USB device is replaced by another of the same type while
-	  the system is asleep, there's a good chance the kernel won't
-	  detect the change.  Likewise if the media in a USB storage
-	  device is replaced.  When this happens it's almost certain to
-	  cause data corruption and maybe even crash your system.
-
-	  If you are unsure, say N here.
-
 config USB_OTG
 	bool
 	depends on USB && EXPERIMENTAL
@@ -136,14 +111,16 @@ config USB_OTG
 
 config USB_OTG_WHITELIST
 	bool "Rely on OTG Targeted Peripherals List"
-	depends on USB_OTG
-	default y
+	depends on USB_OTG || EMBEDDED
+	default y if USB_OTG
+	default n if EMBEDDED
 	help
 	  If you say Y here, the "otg_whitelist.h" file will be used as a
 	  product whitelist, so USB peripherals not listed there will be
 	  rejected during enumeration.  This behavior is required by the
 	  USB OTG specification for all devices not on your product's
-	  "Targeted Peripherals List".
+	  "Targeted Peripherals List".  "Embedded Hosts" are likewise
+	  allowed to support only a limited number of peripherals.
 
 	  Otherwise, peripherals not listed there will only generate a
 	  warning and enumeration will continue.  That's more like what
@@ -152,9 +129,10 @@ config USB_OTG_WHITELIST
 
 config USB_OTG_BLACKLIST_HUB
 	bool "Disable external hubs"
-	depends on USB_OTG
+	depends on USB_OTG || EMBEDDED
 	help
 	  If you say Y here, then Linux will refuse to enumerate
 	  external hubs.  OTG hosts are allowed to reduce hardware
-	  and software costs by not supporting external hubs.
+	  and software costs by not supporting external hubs.  So
+	  are "Emedded Hosts" that don't offer OTG support.
 
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index a92122a216b..568244c99bd 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -145,6 +145,23 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
 			endpoint->desc.wMaxPacketSize = cpu_to_le16(8);
 	}
 
+	/*
+	 * Some buggy high speed devices have bulk endpoints using
+	 * maxpacket sizes other than 512.  High speed HCDs may not
+	 * be able to handle that particular bug, so let's warn...
+	 */
+	if (to_usb_device(ddev)->speed == USB_SPEED_HIGH
+			&& usb_endpoint_xfer_bulk(d)) {
+		unsigned maxp;
+
+		maxp = le16_to_cpu(endpoint->desc.wMaxPacketSize) & 0x07ff;
+		if (maxp != 512)
+			dev_warn(ddev, "config %d interface %d altsetting %d "
+				"bulk endpoint 0x%X has invalid maxpacket %d\n",
+				cfgno, inum, asnum, d->bEndpointAddress,
+				maxp);
+	}
+
 	/* Skip over any Class Specific or Vendor Specific descriptors;
 	 * find the next endpoint or interface descriptor */
 	endpoint->extra = buffer;
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index ae94176c64e..de17738f3ac 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -647,6 +647,7 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 	struct usbdevfs_ctrltransfer ctrl;
 	unsigned int tmo;
 	unsigned char *tbuf;
+	unsigned wLength;
 	int i, j, ret;
 
 	if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
@@ -654,7 +655,8 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 	ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.wIndex);
 	if (ret)
 		return ret;
-	if (ctrl.wLength > PAGE_SIZE)
+	wLength = ctrl.wLength;		/* To suppress 64k PAGE_SIZE warning */
+	if (wLength > PAGE_SIZE)
 		return -EINVAL;
 	tbuf = (unsigned char *)__get_free_page(GFP_KERNEL);
 	if (!tbuf)
@@ -946,8 +948,11 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 	int ret, ifnum = -1;
 	int is_in;
 
-	if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP|USBDEVFS_URB_SHORT_NOT_OK|
-			   URB_NO_FSBR|URB_ZERO_PACKET))
+	if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP |
+				USBDEVFS_URB_SHORT_NOT_OK |
+				USBDEVFS_URB_NO_FSBR |
+				USBDEVFS_URB_ZERO_PACKET |
+				USBDEVFS_URB_NO_INTERRUPT))
 		return -EINVAL;
 	if (!uurb->buffer)
 		return -EINVAL;
@@ -1102,8 +1107,24 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 	as->urb->pipe = (uurb->type << 30) |
 			__create_pipe(ps->dev, uurb->endpoint & 0xf) |
 			(uurb->endpoint & USB_DIR_IN);
-	as->urb->transfer_flags = uurb->flags |
-			(is_in ? URB_DIR_IN : URB_DIR_OUT);
+
+	/* This tedious sequence is necessary because the URB_* flags
+	 * are internal to the kernel and subject to change, whereas
+	 * the USBDEVFS_URB_* flags are a user API and must not be changed.
+	 */
+	u = (is_in ? URB_DIR_IN : URB_DIR_OUT);
+	if (uurb->flags & USBDEVFS_URB_ISO_ASAP)
+		u |= URB_ISO_ASAP;
+	if (uurb->flags & USBDEVFS_URB_SHORT_NOT_OK)
+		u |= URB_SHORT_NOT_OK;
+	if (uurb->flags & USBDEVFS_URB_NO_FSBR)
+		u |= URB_NO_FSBR;
+	if (uurb->flags & USBDEVFS_URB_ZERO_PACKET)
+		u |= URB_ZERO_PACKET;
+	if (uurb->flags & USBDEVFS_URB_NO_INTERRUPT)
+		u |= URB_NO_INTERRUPT;
+	as->urb->transfer_flags = u;
+
 	as->urb->transfer_buffer_length = uurb->buffer_length;
 	as->urb->setup_packet = (unsigned char *)dr;
 	as->urb->start_frame = uurb->start_frame;
@@ -1509,60 +1530,60 @@ static int usbdev_ioctl(struct inode *inode, struct file *file,
 
 	switch (cmd) {
 	case USBDEVFS_CONTROL:
-		snoop(&dev->dev, "%s: CONTROL\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: CONTROL\n", __func__);
 		ret = proc_control(ps, p);
 		if (ret >= 0)
 			inode->i_mtime = CURRENT_TIME;
 		break;
 
 	case USBDEVFS_BULK:
-		snoop(&dev->dev, "%s: BULK\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: BULK\n", __func__);
 		ret = proc_bulk(ps, p);
 		if (ret >= 0)
 			inode->i_mtime = CURRENT_TIME;
 		break;
 
 	case USBDEVFS_RESETEP:
-		snoop(&dev->dev, "%s: RESETEP\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: RESETEP\n", __func__);
 		ret = proc_resetep(ps, p);
 		if (ret >= 0)
 			inode->i_mtime = CURRENT_TIME;
 		break;
 
 	case USBDEVFS_RESET:
-		snoop(&dev->dev, "%s: RESET\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: RESET\n", __func__);
 		ret = proc_resetdevice(ps);
 		break;
 
 	case USBDEVFS_CLEAR_HALT:
-		snoop(&dev->dev, "%s: CLEAR_HALT\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: CLEAR_HALT\n", __func__);
 		ret = proc_clearhalt(ps, p);
 		if (ret >= 0)
 			inode->i_mtime = CURRENT_TIME;
 		break;
 
 	case USBDEVFS_GETDRIVER:
-		snoop(&dev->dev, "%s: GETDRIVER\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: GETDRIVER\n", __func__);
 		ret = proc_getdriver(ps, p);
 		break;
 
 	case USBDEVFS_CONNECTINFO:
-		snoop(&dev->dev, "%s: CONNECTINFO\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: CONNECTINFO\n", __func__);
 		ret = proc_connectinfo(ps, p);
 		break;
 
 	case USBDEVFS_SETINTERFACE:
-		snoop(&dev->dev, "%s: SETINTERFACE\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: SETINTERFACE\n", __func__);
 		ret = proc_setintf(ps, p);
 		break;
 
 	case USBDEVFS_SETCONFIGURATION:
-		snoop(&dev->dev, "%s: SETCONFIGURATION\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: SETCONFIGURATION\n", __func__);
 		ret = proc_setconfig(ps, p);
 		break;
 
 	case USBDEVFS_SUBMITURB:
-		snoop(&dev->dev, "%s: SUBMITURB\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: SUBMITURB\n", __func__);
 		ret = proc_submiturb(ps, p);
 		if (ret >= 0)
 			inode->i_mtime = CURRENT_TIME;
@@ -1571,60 +1592,60 @@ static int usbdev_ioctl(struct inode *inode, struct file *file,
 #ifdef CONFIG_COMPAT
 
 	case USBDEVFS_SUBMITURB32:
-		snoop(&dev->dev, "%s: SUBMITURB32\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: SUBMITURB32\n", __func__);
 		ret = proc_submiturb_compat(ps, p);
 		if (ret >= 0)
 			inode->i_mtime = CURRENT_TIME;
 		break;
 
 	case USBDEVFS_REAPURB32:
-		snoop(&dev->dev, "%s: REAPURB32\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: REAPURB32\n", __func__);
 		ret = proc_reapurb_compat(ps, p);
 		break;
 
 	case USBDEVFS_REAPURBNDELAY32:
-		snoop(&dev->dev, "%s: REAPURBDELAY32\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: REAPURBDELAY32\n", __func__);
 		ret = proc_reapurbnonblock_compat(ps, p);
 		break;
 
 	case USBDEVFS_IOCTL32:
-		snoop(&dev->dev, "%s: IOCTL\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: IOCTL\n", __func__);
 		ret = proc_ioctl_compat(ps, ptr_to_compat(p));
 		break;
 #endif
 
 	case USBDEVFS_DISCARDURB:
-		snoop(&dev->dev, "%s: DISCARDURB\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: DISCARDURB\n", __func__);
 		ret = proc_unlinkurb(ps, p);
 		break;
 
 	case USBDEVFS_REAPURB:
-		snoop(&dev->dev, "%s: REAPURB\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: REAPURB\n", __func__);
 		ret = proc_reapurb(ps, p);
 		break;
 
 	case USBDEVFS_REAPURBNDELAY:
-		snoop(&dev->dev, "%s: REAPURBDELAY\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: REAPURBDELAY\n", __func__);
 		ret = proc_reapurbnonblock(ps, p);
 		break;
 
 	case USBDEVFS_DISCSIGNAL:
-		snoop(&dev->dev, "%s: DISCSIGNAL\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: DISCSIGNAL\n", __func__);
 		ret = proc_disconnectsignal(ps, p);
 		break;
 
 	case USBDEVFS_CLAIMINTERFACE:
-		snoop(&dev->dev, "%s: CLAIMINTERFACE\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: CLAIMINTERFACE\n", __func__);
 		ret = proc_claiminterface(ps, p);
 		break;
 
 	case USBDEVFS_RELEASEINTERFACE:
-		snoop(&dev->dev, "%s: RELEASEINTERFACE\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: RELEASEINTERFACE\n", __func__);
 		ret = proc_releaseinterface(ps, p);
 		break;
 
 	case USBDEVFS_IOCTL:
-		snoop(&dev->dev, "%s: IOCTL\n", __FUNCTION__);
+		snoop(&dev->dev, "%s: IOCTL\n", __func__);
 		ret = proc_ioctl_default(ps, p);
 		break;
 	}
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 801b6f142fa..1e56f1cfa6d 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -157,7 +157,7 @@ static int usb_probe_device(struct device *dev)
 	struct usb_device *udev;
 	int error = -ENODEV;
 
-	dev_dbg(dev, "%s\n", __FUNCTION__);
+	dev_dbg(dev, "%s\n", __func__);
 
 	if (!is_usb_device(dev))	/* Sanity check */
 		return error;
@@ -194,7 +194,7 @@ static int usb_probe_interface(struct device *dev)
 	const struct usb_device_id *id;
 	int error = -ENODEV;
 
-	dev_dbg(dev, "%s\n", __FUNCTION__);
+	dev_dbg(dev, "%s\n", __func__);
 
 	if (is_usb_device(dev))		/* Sanity check */
 		return error;
@@ -211,7 +211,7 @@ static int usb_probe_interface(struct device *dev)
 	if (!id)
 		id = usb_match_dynamic_id(intf, driver);
 	if (id) {
-		dev_dbg(dev, "%s - got id\n", __FUNCTION__);
+		dev_dbg(dev, "%s - got id\n", __func__);
 
 		error = usb_autoresume_device(udev);
 		if (error)
@@ -793,9 +793,7 @@ static int usb_suspend_device(struct usb_device *udev, pm_message_t msg)
 	status = udriver->suspend(udev, msg);
 
  done:
-	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
-	if (status == 0)
-		udev->dev.power.power_state.event = msg.event;
+	dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
 	return status;
 }
 
@@ -823,11 +821,9 @@ static int usb_resume_device(struct usb_device *udev)
 	status = udriver->resume(udev);
 
  done:
-	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
-	if (status == 0) {
+	dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
+	if (status == 0)
 		udev->autoresume_disabled = 0;
-		udev->dev.power.power_state.event = PM_EVENT_ON;
-	}
 	return status;
 }
 
@@ -864,7 +860,7 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
 	}
 
  done:
-	dev_vdbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status);
+	dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status);
 	return status;
 }
 
@@ -914,7 +910,7 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume)
 	}
 
 done:
-	dev_vdbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status);
+	dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status);
 	if (status == 0)
 		mark_active(intf);
 
@@ -936,7 +932,6 @@ static int autosuspend_check(struct usb_device *udev, int reschedule)
 	 * is disabled.  Also fail if any interfaces require remote wakeup
 	 * but it isn't available.
 	 */
-	udev->do_remote_wakeup = device_may_wakeup(&udev->dev);
 	if (udev->pm_usage_cnt > 0)
 		return -EBUSY;
 	if (udev->autosuspend_delay < 0 || udev->autosuspend_disabled)
@@ -1098,7 +1093,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 	}
 
  done:
-	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
+	dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
 	return status;
 }
 
@@ -1180,8 +1175,7 @@ static int usb_resume_both(struct usb_device *udev)
 		}
 	} else {
 
-		/* Needed for setting udev->dev.power.power_state.event,
-		 * for possible debugging message, and for reset_resume. */
+		/* Needed for reset-resume */
 		status = usb_resume_device(udev);
 	}
 
@@ -1193,8 +1187,9 @@ static int usb_resume_both(struct usb_device *udev)
 	}
 
  done:
-	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
-	udev->reset_resume = 0;
+	dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
+	if (!status)
+		udev->reset_resume = 0;
 	return status;
 }
 
@@ -1262,7 +1257,7 @@ void usb_autosuspend_device(struct usb_device *udev)
 
 	status = usb_autopm_do_device(udev, -1);
 	dev_vdbg(&udev->dev, "%s: cnt %d\n",
-			__FUNCTION__, udev->pm_usage_cnt);
+			__func__, udev->pm_usage_cnt);
 }
 
 /**
@@ -1282,7 +1277,7 @@ void usb_try_autosuspend_device(struct usb_device *udev)
 {
 	usb_autopm_do_device(udev, 0);
 	dev_vdbg(&udev->dev, "%s: cnt %d\n",
-			__FUNCTION__, udev->pm_usage_cnt);
+			__func__, udev->pm_usage_cnt);
 }
 
 /**
@@ -1310,7 +1305,7 @@ int usb_autoresume_device(struct usb_device *udev)
 
 	status = usb_autopm_do_device(udev, 1);
 	dev_vdbg(&udev->dev, "%s: status %d cnt %d\n",
-			__FUNCTION__, status, udev->pm_usage_cnt);
+			__func__, status, udev->pm_usage_cnt);
 	return status;
 }
 
@@ -1382,7 +1377,7 @@ void usb_autopm_put_interface(struct usb_interface *intf)
 
 	status = usb_autopm_do_interface(intf, -1);
 	dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
-			__FUNCTION__, status, intf->pm_usage_cnt);
+			__func__, status, intf->pm_usage_cnt);
 }
 EXPORT_SYMBOL_GPL(usb_autopm_put_interface);
 
@@ -1426,7 +1421,7 @@ int usb_autopm_get_interface(struct usb_interface *intf)
 
 	status = usb_autopm_do_interface(intf, 1);
 	dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
-			__FUNCTION__, status, intf->pm_usage_cnt);
+			__func__, status, intf->pm_usage_cnt);
 	return status;
 }
 EXPORT_SYMBOL_GPL(usb_autopm_get_interface);
@@ -1448,7 +1443,7 @@ int usb_autopm_set_interface(struct usb_interface *intf)
 
 	status = usb_autopm_do_interface(intf, 0);
 	dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
-			__FUNCTION__, status, intf->pm_usage_cnt);
+			__func__, status, intf->pm_usage_cnt);
 	return status;
 }
 EXPORT_SYMBOL_GPL(usb_autopm_set_interface);
@@ -1523,9 +1518,14 @@ static int usb_suspend(struct device *dev, pm_message_t message)
 	udev = to_usb_device(dev);
 
 	/* If udev is already suspended, we can skip this suspend and
-	 * we should also skip the upcoming system resume. */
+	 * we should also skip the upcoming system resume.  High-speed
+	 * root hubs are an exception; they need to resume whenever the
+	 * system wakes up in order for USB-PERSIST port handover to work
+	 * properly.
+	 */
 	if (udev->state == USB_STATE_SUSPENDED) {
-		udev->skip_sys_resume = 1;
+		if (udev->parent || udev->speed != USB_SPEED_HIGH)
+			udev->skip_sys_resume = 1;
 		return 0;
 	}
 
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index 84760ddbc33..5b87ae7f0a6 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -73,7 +73,6 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (pci_enable_device(dev) < 0)
 		return -ENODEV;
 	dev->current_state = PCI_D0;
-	dev->dev.power.power_state = PMSG_ON;
 
 	if (!dev->irq) {
 		dev_err(&dev->dev,
@@ -216,9 +215,9 @@ int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t message)
 			hcd->state == HC_STATE_HALT))
 		return -EBUSY;
 
-	if (hcd->driver->suspend) {
-		retval = hcd->driver->suspend(hcd, message);
-		suspend_report_result(hcd->driver->suspend, retval);
+	if (hcd->driver->pci_suspend) {
+		retval = hcd->driver->pci_suspend(hcd, message);
+		suspend_report_result(hcd->driver->pci_suspend, retval);
 		if (retval)
 			goto done;
 	}
@@ -302,8 +301,6 @@ int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t message)
 
 done:
 	if (retval == 0) {
-		dev->dev.power.power_state = PMSG_SUSPEND;
-
 #ifdef CONFIG_PPC_PMAC
 		/* Disable ASIC clocks for USB */
 		if (machine_is(powermac)) {
@@ -406,12 +403,10 @@ int usb_hcd_pci_resume(struct pci_dev *dev)
 	pci_set_master(dev);
 	pci_restore_state(dev);
 
-	dev->dev.power.power_state = PMSG_ON;
-
 	clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
 
-	if (hcd->driver->resume) {
-		retval = hcd->driver->resume(hcd);
+	if (hcd->driver->pci_resume) {
+		retval = hcd->driver->pci_resume(hcd);
 		if (retval) {
 			dev_err(hcd->self.controller,
 				"PCI post-resume error %d!\n", retval);
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index e52ed1663b3..bf10e9c4195 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -129,7 +129,7 @@ static const u8 usb2_rh_dev_descriptor [18] = {
 
 	0x09,	    /*  __u8  bDeviceClass; HUB_CLASSCODE */
 	0x00,	    /*  __u8  bDeviceSubClass; */
-	0x01,       /*  __u8  bDeviceProtocol; [ usb 2.0 single TT ]*/
+	0x00,       /*  __u8  bDeviceProtocol; [ usb 2.0 no TT ] */
 	0x40,       /*  __u8  bMaxPacketSize0; 64 Bytes */
 
 	0x6b, 0x1d, /*  __le16 idVendor; Linux Foundation */
@@ -291,7 +291,6 @@ static int ascii2utf (char *s, u8 *utf, int utfmax)
  * rh_string - provides manufacturer, product and serial strings for root hub
  * @id: the string ID number (1: serial number, 2: product, 3: vendor)
  * @hcd: the host controller for this root hub
- * @type: string describing our driver 
  * @data: return packet in UTF-16 LE
  * @len: length of the return packet
  *
@@ -355,9 +354,10 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 		__attribute__((aligned(4)));
 	const u8	*bufp = tbuf;
 	int		len = 0;
-	int		patch_wakeup = 0;
 	int		status;
 	int		n;
+	u8		patch_wakeup = 0;
+	u8		patch_protocol = 0;
 
 	might_sleep();
 
@@ -434,6 +434,8 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 			else
 				goto error;
 			len = 18;
+			if (hcd->has_tt)
+				patch_protocol = 1;
 			break;
 		case USB_DT_CONFIG << 8:
 			if (hcd->driver->flags & HCD_USB2) {
@@ -528,6 +530,13 @@ error:
 						bmAttributes))
 			((struct usb_config_descriptor *)ubuf)->bmAttributes
 				|= USB_CONFIG_ATT_WAKEUP;
+
+		/* report whether RH hardware has an integrated TT */
+		if (patch_protocol &&
+				len > offsetof(struct usb_device_descriptor,
+						bDeviceProtocol))
+			((struct usb_device_descriptor *) ubuf)->
+					bDeviceProtocol = 1;
 	}
 
 	/* any errors get returned through the urb completion */
@@ -915,15 +924,6 @@ static int register_root_hub(struct usb_hcd *hcd)
 	return retval;
 }
 
-void usb_enable_root_hub_irq (struct usb_bus *bus)
-{
-	struct usb_hcd *hcd;
-
-	hcd = container_of (bus, struct usb_hcd, self);
-	if (hcd->driver->hub_irq_enable && hcd->state != HC_STATE_HALT)
-		hcd->driver->hub_irq_enable (hcd);
-}
-
 
 /*-------------------------------------------------------------------------*/
 
@@ -1677,7 +1677,6 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum);
  * usb_hcd_irq - hook IRQs to HCD framework (bus glue)
  * @irq: the IRQ being raised
  * @__hcd: pointer to the HCD whose IRQ is being signaled
- * @r: saved hardware registers
  *
  * If the controller isn't HALTed, calls the driver's irq handler.
  * Checks whether the controller is now dead.
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index 2d1c3d5e47b..1e4b81e9eb5 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -28,7 +28,7 @@
 /*
  * USB Packet IDs (PIDs)
  */
-#define USB_PID_UNDEF_0			0xf0
+#define USB_PID_EXT			0xf0	/* USB 2.0 LPM ECN */
 #define USB_PID_OUT			0xe1
 #define USB_PID_ACK			0xd2
 #define USB_PID_DATA0			0xc3
@@ -99,6 +99,7 @@ struct usb_hcd {
 	unsigned		poll_pending:1;	/* status has changed? */
 	unsigned		wireless:1;	/* Wireless USB HCD */
 	unsigned		authorized_default:1;
+	unsigned		has_tt:1;	/* Integrated TT in root hub */
 
 	int			irq;		/* irq allocated */
 	void __iomem		*regs;		/* device memory/io */
@@ -177,10 +178,10 @@ struct hc_driver {
 	 * a whole, not just the root hub; they're for PCI bus glue.
 	 */
 	/* called after suspending the hub, before entering D3 etc */
-	int	(*suspend) (struct usb_hcd *hcd, pm_message_t message);
+	int	(*pci_suspend) (struct usb_hcd *hcd, pm_message_t message);
 
 	/* called after entering D0 (etc), before resuming the hub */
-	int	(*resume) (struct usb_hcd *hcd);
+	int	(*pci_resume) (struct usb_hcd *hcd);
 
 	/* cleanly make HCD stop writing memory and doing I/O */
 	void	(*stop) (struct usb_hcd *hcd);
@@ -209,8 +210,6 @@ struct hc_driver {
 	int	(*bus_suspend)(struct usb_hcd *);
 	int	(*bus_resume)(struct usb_hcd *);
 	int	(*start_port_reset)(struct usb_hcd *, unsigned port_num);
-	void	(*hub_irq_enable)(struct usb_hcd *);
-		/* Needed only if port-change IRQs are level-triggered */
 
 		/* force handover of high-speed port to full-speed companion */
 	void	(*relinquish_port)(struct usb_hcd *, int);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 57aeca160f3..eb57fcc701d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -30,12 +30,6 @@
 #include "hcd.h"
 #include "hub.h"
 
-#ifdef	CONFIG_USB_PERSIST
-#define	USB_PERSIST	1
-#else
-#define	USB_PERSIST	0
-#endif
-
 /* if we are in debug mode, always announce new devices */
 #ifdef DEBUG
 #ifndef CONFIG_USB_ANNOUNCE_NEW_DEVICES
@@ -333,6 +327,27 @@ static int get_port_status(struct usb_device *hdev, int port1,
 	return status;
 }
 
+static int hub_port_status(struct usb_hub *hub, int port1,
+		u16 *status, u16 *change)
+{
+	int ret;
+
+	mutex_lock(&hub->status_mutex);
+	ret = get_port_status(hub->hdev, port1, &hub->status->port);
+	if (ret < 4) {
+		dev_err(hub->intfdev,
+			"%s failed (err = %d)\n", __func__, ret);
+		if (ret >= 0)
+			ret = -EIO;
+	} else {
+		*status = le16_to_cpu(hub->status->port.wPortStatus);
+		*change = le16_to_cpu(hub->status->port.wPortChange);
+		ret = 0;
+	}
+	mutex_unlock(&hub->status_mutex);
+	return ret;
+}
+
 static void kick_khubd(struct usb_hub *hub)
 {
 	unsigned long	flags;
@@ -560,7 +575,7 @@ static int hub_hub_status(struct usb_hub *hub,
 	ret = get_hub_status(hub->hdev, &hub->status->hub);
 	if (ret < 0)
 		dev_err (hub->intfdev,
-			"%s failed (err = %d)\n", __FUNCTION__, ret);
+			"%s failed (err = %d)\n", __func__, ret);
 	else {
 		*status = le16_to_cpu(hub->status->hub.wHubStatus);
 		*change = le16_to_cpu(hub->status->hub.wHubChange); 
@@ -610,9 +625,8 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1)
 }
 
 /* caller has locked the hub device */
-static int hub_pre_reset(struct usb_interface *intf)
+static void hub_stop(struct usb_hub *hub)
 {
-	struct usb_hub *hub = usb_get_intfdata(intf);
 	struct usb_device *hdev = hub->hdev;
 	int i;
 
@@ -622,6 +636,89 @@ static int hub_pre_reset(struct usb_interface *intf)
 			usb_disconnect(&hdev->children[i]);
 	}
 	hub_quiesce(hub);
+}
+
+#define HUB_RESET		1
+#define HUB_RESUME		2
+#define HUB_RESET_RESUME	3
+
+#ifdef CONFIG_PM
+
+static void hub_restart(struct usb_hub *hub, int type)
+{
+	struct usb_device *hdev = hub->hdev;
+	int port1;
+
+	/* Check each of the children to see if they require
+	 * USB-PERSIST handling or disconnection.  Also check
+	 * each unoccupied port to make sure it is still disabled.
+	 */
+	for (port1 = 1; port1 <= hdev->maxchild; ++port1) {
+		struct usb_device *udev = hdev->children[port1-1];
+		int status = 0;
+		u16 portstatus, portchange;
+
+		if (!udev || udev->state == USB_STATE_NOTATTACHED) {
+			if (type != HUB_RESET) {
+				status = hub_port_status(hub, port1,
+						&portstatus, &portchange);
+				if (status == 0 && (portstatus &
+						USB_PORT_STAT_ENABLE))
+					clear_port_feature(hdev, port1,
+							USB_PORT_FEAT_ENABLE);
+			}
+			continue;
+		}
+
+		/* Was the power session lost while we were suspended? */
+		switch (type) {
+		case HUB_RESET_RESUME:
+			portstatus = 0;
+			portchange = USB_PORT_STAT_C_CONNECTION;
+			break;
+
+		case HUB_RESET:
+		case HUB_RESUME:
+			status = hub_port_status(hub, port1,
+					&portstatus, &portchange);
+			break;
+		}
+
+		/* For "USB_PERSIST"-enabled children we must
+		 * mark the child device for reset-resume and
+		 * turn off the various status changes to prevent
+		 * khubd from disconnecting it later.
+		 */
+		if (udev->persist_enabled && status == 0 &&
+				!(portstatus & USB_PORT_STAT_ENABLE)) {
+			if (portchange & USB_PORT_STAT_C_ENABLE)
+				clear_port_feature(hub->hdev, port1,
+						USB_PORT_FEAT_C_ENABLE);
+			if (portchange & USB_PORT_STAT_C_CONNECTION)
+				clear_port_feature(hub->hdev, port1,
+						USB_PORT_FEAT_C_CONNECTION);
+			udev->reset_resume = 1;
+		}
+
+		/* Otherwise for a reset_resume we must disconnect the child,
+		 * but as we may not lock the child device here
+		 * we have to do a "logical" disconnect.
+		 */
+		else if (type == HUB_RESET_RESUME)
+			hub_port_logical_disconnect(hub, port1);
+	}
+
+	hub_activate(hub);
+}
+
+#endif	/* CONFIG_PM */
+
+/* caller has locked the hub device */
+static int hub_pre_reset(struct usb_interface *intf)
+{
+	struct usb_hub *hub = usb_get_intfdata(intf);
+
+	hub_stop(hub);
 	return 0;
 }
 
@@ -910,7 +1007,7 @@ static void hub_disconnect(struct usb_interface *intf)
 
 	/* Disconnect all children and quiesce the hub */
 	hub->error = 0;
-	hub_pre_reset(intf);
+	hub_stop(hub);
 
 	usb_set_intfdata (intf, NULL);
 
@@ -1098,21 +1195,42 @@ void usb_set_device_state(struct usb_device *udev,
 	spin_unlock_irqrestore(&device_state_lock, flags);
 }
 
+/*
+ * WUSB devices are simple: they have no hubs behind, so the mapping
+ * device <-> virtual port number becomes 1:1. Why? to simplify the
+ * life of the device connection logic in
+ * drivers/usb/wusbcore/devconnect.c. When we do the initial secret
+ * handshake we need to assign a temporary address in the unauthorized
+ * space. For simplicity we use the first virtual port number found to
+ * be free [drivers/usb/wusbcore/devconnect.c:wusbhc_devconnect_ack()]
+ * and that becomes it's address [X < 128] or its unauthorized address
+ * [X | 0x80].
+ *
+ * We add 1 as an offset to the one-based USB-stack port number
+ * (zero-based wusb virtual port index) for two reasons: (a) dev addr
+ * 0 is reserved by USB for default address; (b) Linux's USB stack
+ * uses always #1 for the root hub of the controller. So USB stack's
+ * port #1, which is wusb virtual-port #0 has address #2.
+ */
 static void choose_address(struct usb_device *udev)
 {
 	int		devnum;
 	struct usb_bus	*bus = udev->bus;
 
 	/* If khubd ever becomes multithreaded, this will need a lock */
-
-	/* Try to allocate the next devnum beginning at bus->devnum_next. */
-	devnum = find_next_zero_bit(bus->devmap.devicemap, 128,
-			bus->devnum_next);
-	if (devnum >= 128)
-		devnum = find_next_zero_bit(bus->devmap.devicemap, 128, 1);
-
-	bus->devnum_next = ( devnum >= 127 ? 1 : devnum + 1);
-
+	if (udev->wusb) {
+		devnum = udev->portnum + 1;
+		BUG_ON(test_bit(devnum, bus->devmap.devicemap));
+	} else {
+		/* Try to allocate the next devnum beginning at
+		 * bus->devnum_next. */
+		devnum = find_next_zero_bit(bus->devmap.devicemap, 128,
+					    bus->devnum_next);
+		if (devnum >= 128)
+			devnum = find_next_zero_bit(bus->devmap.devicemap,
+						    128, 1);
+		bus->devnum_next = ( devnum >= 127 ? 1 : devnum + 1);
+	}
 	if (devnum < 128) {
 		set_bit(devnum, bus->devmap.devicemap);
 		udev->devnum = devnum;
@@ -1127,6 +1245,13 @@ static void release_address(struct usb_device *udev)
 	}
 }
 
+static void update_address(struct usb_device *udev, int devnum)
+{
+	/* The address for a WUSB device is managed by wusbcore. */
+	if (!udev->wusb)
+		udev->devnum = devnum;
+}
+
 #ifdef	CONFIG_USB_SUSPEND
 
 static void usb_stop_pm(struct usb_device *udev)
@@ -1173,7 +1298,7 @@ void usb_disconnect(struct usb_device **pdev)
 	int			i;