Merge branch 'master' into for-next

Conflicts:
	MAINTAINERS
	arch/arm/mach-omap2/pm24xx.c
	drivers/scsi/bfa/bfa_fcpim.c

Needed to update to apply fixes for which the old branch was too
outdated.

58 files changed, 715 insertions, 226 deletions

diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index ea071a5b6eee..44447f54942f 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -2301,7 +2301,7 @@ out:
 	return ret;
 }
 
-static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
+static DEVICE_ATTR(stat_status, S_IWUSR | S_IRUGO, read_status, reboot);
 
 static ssize_t read_human_status(struct device *dev,
 			struct device_attribute *attr, char *buf)
@@ -2364,8 +2364,7 @@ out:
 	return ret;
 }
 
-static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO,
-				read_human_status, NULL);
+static DEVICE_ATTR(stat_human_status, S_IRUGO, read_human_status, NULL);
 
 static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
 		char *buf)
@@ -2397,7 +2396,7 @@ out:
 	return ret;
 }
 
-static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
+static DEVICE_ATTR(stat_delin, S_IRUGO, read_delin, NULL);
 
 #define UEA_ATTR(name, reset)					\
 								\
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 05bf5a27b5b0..989e16e4ab5c 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -951,7 +951,9 @@ static int usbatm_atm_init(struct usbatm_data *instance)
 	 * condition: callbacks we register can be executed at once, before we have
 	 * initialized the struct atm_dev.  To protect against this, all callbacks
 	 * abort if atm_dev->dev_data is NULL. */
-	atm_dev = atm_dev_register(instance->driver_name, &usbatm_atm_devops, -1, NULL);
+	atm_dev = atm_dev_register(instance->driver_name,
+				   &instance->usb_intf->dev, &usbatm_atm_devops,
+				   -1, NULL);
 	if (!atm_dev) {
 		usb_err(instance, "%s: failed to register ATM device!\n", __func__);
 		return -1;
@@ -966,14 +968,6 @@ static int usbatm_atm_init(struct usbatm_data *instance)
 	/* temp init ATM device, set to 128kbit */
 	atm_dev->link_rate = 128 * 1000 / 424;
 
-	ret = sysfs_create_link(&atm_dev->class_dev.kobj,
-				&instance->usb_intf->dev.kobj, "device");
-	if (ret) {
-		atm_err(instance, "%s: sysfs_create_link failed: %d\n",
-					__func__, ret);
-		goto fail_sysfs;
-	}
-
 	if (instance->driver->atm_start && ((ret = instance->driver->atm_start(instance, atm_dev)) < 0)) {
 		atm_err(instance, "%s: atm_start failed: %d!\n", __func__, ret);
 		goto fail;
@@ -992,8 +986,6 @@ static int usbatm_atm_init(struct usbatm_data *instance)
 	return 0;
 
  fail:
-	sysfs_remove_link(&atm_dev->class_dev.kobj, "device");
- fail_sysfs:
 	instance->atm_dev = NULL;
 	atm_dev_deregister(atm_dev); /* usbatm_atm_dev_close will eventually be called */
 	return ret;
@@ -1329,7 +1321,6 @@ void usbatm_usb_disconnect(struct usb_interface *intf)
 
 	/* ATM finalize */
 	if (instance->atm_dev) {
-		sysfs_remove_link(&instance->atm_dev->class_dev.kobj, "device");
 		atm_dev_deregister(instance->atm_dev);
 		instance->atm_dev = NULL;
 	}
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 9eed5b52d9de..bcc24779ba0e 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -107,11 +107,19 @@ config USB_SUSPEND
 	  If you are unsure about this, say N here.
 
 config USB_OTG
-	bool
+	bool "OTG support"
 	depends on USB && EXPERIMENTAL
 	depends on USB_SUSPEND
 	default n
-
+	help
+	  The most notable feature of USB OTG is support for a
+	  "Dual-Role" device, which can act as either a device
+	  or a host. The initial role is decided by the type of
+	  plug inserted and can be changed later when two dual
+	  role devices talk to each other.
+
+	  Select this only if your board has Mini-AB/Micro-AB
+	  connector.
 
 config USB_OTG_WHITELIST
 	bool "Rely on OTG Targeted Peripherals List"
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index ddb4dc980923..a3d2e2399655 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -54,7 +54,6 @@
 #include <linux/gfp.h>
 #include <linux/poll.h>
 #include <linux/usb.h>
-#include <linux/smp_lock.h>
 #include <linux/usbdevice_fs.h>
 #include <linux/usb/hcd.h>
 #include <linux/mutex.h>
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index f1aaff6202a5..a7131ad630f9 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -37,7 +37,6 @@
 #include <linux/fs.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/signal.h>
 #include <linux/poll.h>
 #include <linux/module.h>
@@ -965,10 +964,11 @@ static int proc_getdriver(struct dev_state *ps, void __user *arg)
 
 static int proc_connectinfo(struct dev_state *ps, void __user *arg)
 {
-	struct usbdevfs_connectinfo ci;
+	struct usbdevfs_connectinfo ci = {
+		.devnum = ps->dev->devnum,
+		.slow = ps->dev->speed == USB_SPEED_LOW
+	};
 
-	ci.devnum = ps->dev->devnum;
-	ci.slow = ps->dev->speed == USB_SPEED_LOW;
 	if (copy_to_user(arg, &ci, sizeof(ci)))
 		return -EFAULT;
 	return 0;
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 9fe34fb78ef1..cf6a5423de09 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -19,7 +19,6 @@
 #include <linux/errno.h>
 #include <linux/rwsem.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/usb.h>
 
 #include "usb.h"
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 61800f77dac8..ced846ac4141 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1330,6 +1330,8 @@ static int map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
 	 */
 
 	if (usb_endpoint_xfer_control(&urb->ep->desc)) {
+		if (hcd->self.uses_pio_for_control)
+			return ret;
 		if (hcd->self.uses_dma) {
 			urb->setup_dma = dma_map_single(
 					hcd->self.controller,
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 9819a4cc3b26..b690aa35df9a 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -39,7 +39,6 @@
 #include <linux/parser.h>
 #include <linux/notifier.h>
 #include <linux/seq_file.h>
-#include <linux/smp_lock.h>
 #include <linux/usb/hcd.h>
 #include <asm/byteorder.h>
 #include "usb.h"
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index b739ca814651..607d0db4a988 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -158,7 +158,7 @@ config USB_GADGET_FSL_USB2
 	boolean "Freescale Highspeed USB DR Peripheral Controller"
 	depends on FSL_SOC || ARCH_MXC
 	select USB_GADGET_DUALSPEED
-	select USB_FSL_MPH_DR_OF
+	select USB_FSL_MPH_DR_OF if OF
 	help
 	   Some of Freescale PowerPC processors have a High Speed
 	   Dual-Role(DR) USB controller, which supports device mode.
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index b5e20e873cba..717ff653fa23 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -2017,7 +2017,7 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 			}
 		} else {
 			/* gpio_request fail so use -EINVAL for gpio_is_valid */
-			ubc->vbus_pin = -EINVAL;
+			udc->vbus_pin = -EINVAL;
 		}
 	}
 
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 7b5cc16e4a0b..8572dad5ecbb 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1047,9 +1047,9 @@ composite_unbind(struct usb_gadget *gadget)
 		kfree(cdev->req->buf);
 		usb_ep_free_request(gadget->ep0, cdev->req);
 	}
+	device_remove_file(&gadget->dev, &dev_attr_suspended);
 	kfree(cdev);
 	set_gadget_data(gadget, NULL);
-	device_remove_file(&gadget->dev, &dev_attr_suspended);
 	composite = NULL;
 }
 
@@ -1107,14 +1107,6 @@ static int composite_bind(struct usb_gadget *gadget)
 	 */
 	usb_ep_autoconfig_reset(cdev->gadget);
 
-	/* standardized runtime overrides for device ID data */
-	if (idVendor)
-		cdev->desc.idVendor = cpu_to_le16(idVendor);
-	if (idProduct)
-		cdev->desc.idProduct = cpu_to_le16(idProduct);
-	if (bcdDevice)
-		cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
-
 	/* composite gadget needs to assign strings for whole device (like
 	 * serial number), register function drivers, potentially update
 	 * power state and consumption, etc
@@ -1126,6 +1118,14 @@ static int composite_bind(struct usb_gadget *gadget)
 	cdev->desc = *composite->dev;
 	cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
 
+	/* standardized runtime overrides for device ID data */
+	if (idVendor)
+		cdev->desc.idVendor = cpu_to_le16(idVendor);
+	if (idProduct)
+		cdev->desc.idProduct = cpu_to_le16(idProduct);
+	if (bcdDevice)
+		cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
+
 	/* stirng overrides */
 	if (iManufacturer || !cdev->desc.iManufacturer) {
 		if (!iManufacturer && !composite->iManufacturer &&
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 4a830df4fc31..484c5ba5450e 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -30,7 +30,6 @@
 #include <linux/blkdev.h>
 #include <linux/pagemap.h>
 #include <asm/unaligned.h>
-#include <linux/smp_lock.h>
 
 #include <linux/usb/composite.h>
 #include <linux/usb/functionfs.h>
diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c
index 4f891eddd060..598e7e2ab80c 100644
--- a/drivers/usb/gadget/f_hid.c
+++ b/drivers/usb/gadget/f_hid.c
@@ -25,7 +25,6 @@
 #include <linux/cdev.h>
 #include <linux/mutex.h>
 #include <linux/poll.h>
-#include <linux/smp_lock.h>
 #include <linux/uaccess.h>
 #include <linux/wait.h>
 #include <linux/usb/g_hid.h>
diff --git a/drivers/usb/gadget/goku_udc.h b/drivers/usb/gadget/goku_udc.h
index 566cb2319056..e7e0c69d3b1f 100644
--- a/drivers/usb/gadget/goku_udc.h
+++ b/drivers/usb/gadget/goku_udc.h
@@ -251,7 +251,8 @@ struct goku_udc {
 					got_region:1,
 					req_config:1,
 					configured:1,
-					enabled:1;
+					enabled:1,
+					registered:1;
 
 	/* pci state used to access those endpoints */
 	struct pci_dev			*pdev;
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index cb23355f52d3..fbe86ca95802 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -811,7 +811,6 @@ int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN])
 		INFO(dev, "MAC %pM\n", net->dev_addr);
 		INFO(dev, "HOST MAC %pM\n", dev->host_mac);
 
-		netif_stop_queue(net);
 		the_dev = dev;
 	}
 
diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index 01e5354a4c20..40f7716b31fc 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -105,11 +105,15 @@ struct gs_port {
 	wait_queue_head_t	close_wait;	/* wait for last close */
 
 	struct list_head	read_pool;
+	int read_started;
+	int read_allocated;
 	struct list_head	read_queue;
 	unsigned		n_read;
 	struct tasklet_struct	push;
 
 	struct list_head	write_pool;
+	int write_started;
+	int write_allocated;
 	struct gs_buf		port_write_buf;
 	wait_queue_head_t	drain_wait;	/* wait while writes drain */
 
@@ -363,6 +367,9 @@ __acquires(&port->port_lock)
 		struct usb_request	*req;
 		int			len;
 
+		if (port->write_started >= QUEUE_SIZE)
+			break;
+
 		req = list_entry(pool->next, struct usb_request, list);
 		len = gs_send_packet(port, req->buf, in->maxpacket);
 		if (len == 0) {
@@ -397,6 +404,8 @@ __acquires(&port->port_lock)
 			break;
 		}
 
+		port->write_started++;
+
 		/* abort immediately after disconnect */
 		if (!port->port_usb)
 			break;
@@ -418,7 +427,6 @@ __acquires(&port->port_lock)
 {
 	struct list_head	*pool = &port->read_pool;
 	struct usb_ep		*out = port->port_usb->out;
-	unsigned		started = 0;
 
 	while (!list_empty(pool)) {
 		struct usb_request	*req;
@@ -430,6 +438,9 @@ __acquires(&port->port_lock)
 		if (!tty)
 			break;
 
+		if (port->read_started >= QUEUE_SIZE)
+			break;
+
 		req = list_entry(pool->next, struct usb_request, list);
 		list_del(&req->list);
 		req->length = out->maxpacket;
@@ -447,13 +458,13 @@ __acquires(&port->port_lock)
 			list_add(&req->list, pool);
 			break;
 		}
-		started++;
+		port->read_started++;
 
 		/* abort immediately after disconnect */
 		if (!port->port_usb)
 			break;
 	}
-	return started;
+	return port->read_started;
 }
 
 /*
@@ -535,6 +546,7 @@ static void gs_rx_push(unsigned long _port)
 		}
 recycle:
 		list_move(&req->list, &port->read_pool);
+		port->read_started--;
 	}
 
 	/* Push from tty to ldisc; without low_latency set this is handled by
@@ -587,6 +599,7 @@ static void gs_write_complete(struct usb_ep *ep, struct usb_request *req)
 
 	spin_lock(&port->port_lock);
 	list_add(&req->list, &port->write_pool);
+	port->write_started--;
 
 	switch (req->status) {
 	default:
@@ -608,7 +621,8 @@ static void gs_write_complete(struct usb_ep *ep, struct usb_request *req)
 	spin_unlock(&port->port_lock);
 }
 
-static void gs_free_requests(struct usb_ep *ep, struct list_head *head)
+static void gs_free_requests(struct usb_ep *ep, struct list_head *head,
+							 int *allocated)
 {
 	struct usb_request	*req;
 
@@ -616,25 +630,31 @@ static void gs_free_requests(struct usb_ep *ep, struct list_head *head)
 		req = list_entry(head->next, struct usb_request, list);
 		list_del(&req->list);
 		gs_free_req(ep, req);
+		if (allocated)
+			(*allocated)--;
 	}
 }
 
 static int gs_alloc_requests(struct usb_ep *ep, struct list_head *head,
-		void (*fn)(struct usb_ep *, struct usb_request *))
+		void (*fn)(struct usb_ep *, struct usb_request *),
+		int *allocated)
 {
 	int			i;
 	struct usb_request	*req;
+	int n = allocated ? QUEUE_SIZE - *allocated : QUEUE_SIZE;
 
 	/* Pre-allocate up to QUEUE_SIZE transfers, but if we can't
 	 * do quite that many this time, don't fail ... we just won't
 	 * be as speedy as we might otherwise be.
 	 */
-	for (i = 0; i < QUEUE_SIZE; i++) {
+	for (i = 0; i < n; i++) {
 		req = gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC);
 		if (!req)
 			return list_empty(head) ? -ENOMEM : 0;
 		req->complete = fn;
 		list_add_tail(&req->list, head);
+		if (allocated)
+			(*allocated)++;
 	}
 	return 0;
 }
@@ -661,14 +681,15 @@ static int gs_start_io(struct gs_port *port)
 	 * configurations may use different endpoints with a given port;
 	 * and high speed vs full speed changes packet sizes too.
 	 */
-	status = gs_alloc_requests(ep, head, gs_read_complete);
+	status = gs_alloc_requests(ep, head, gs_read_complete,
+		&port->read_allocated);
 	if (status)
 		return status;
 
 	status = gs_alloc_requests(port->port_usb->in, &port->write_pool,
-			gs_write_complete);
+			gs_write_complete, &port->write_allocated);
 	if (status) {
-		gs_free_requests(ep, head);
+		gs_free_requests(ep, head, &port->read_allocated);
 		return status;
 	}
 
@@ -680,8 +701,9 @@ static int gs_start_io(struct gs_port *port)
 	if (started) {
 		tty_wakeup(port->port_tty);
 	} else {
-		gs_free_requests(ep, head);
-		gs_free_requests(port->port_usb->in, &port->write_pool);
+		gs_free_requests(ep, head, &port->read_allocated);
+		gs_free_requests(port->port_usb->in, &port->write_pool,
+			&port->write_allocated);
 		status = -EIO;
 	}
 
@@ -1315,8 +1337,12 @@ void gserial_disconnect(struct gserial *gser)
 	spin_lock_irqsave(&port->port_lock, flags);
 	if (port->open_count == 0 && !port->openclose)
 		gs_buf_free(&port->port_write_buf);
-	gs_free_requests(gser->out, &port->read_pool);
-	gs_free_requests(gser->out, &port->read_queue);
-	gs_free_requests(gser->in, &port->write_pool);
+	gs_free_requests(gser->out, &port->read_pool, NULL);
+	gs_free_requests(gser->out, &port->read_queue, NULL);
+	gs_free_requests(gser->in, &port->write_pool, NULL);
+
+	port->read_allocated = port->read_started =
+		port->write_allocated = port->write_started = 0;
+
 	spin_unlock_irqrestore(&port->port_lock, flags);
 }
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 2391c396ca32..6f4f8e6a40c7 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -122,7 +122,7 @@ config USB_EHCI_FSL
 	bool "Support for Freescale on-chip EHCI USB controller"
 	depends on USB_EHCI_HCD && FSL_SOC
 	select USB_EHCI_ROOT_HUB_TT
-	select USB_FSL_MPH_DR_OF
+	select USB_FSL_MPH_DR_OF if OF
 	---help---
 	  Variation of ARC USB block used in some Freescale chips.
 
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 86afdc73322f..6e2599661b5b 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -1067,7 +1067,7 @@ static inline void create_debug_files (struct ehci_hcd *ehci)
 						    &debug_registers_fops))
 		goto file_error;
 
-	if (!debugfs_create_file("lpm", S_IRUGO|S_IWUGO, ehci->debug_dir, bus,
+	if (!debugfs_create_file("lpm", S_IRUGO|S_IWUSR, ehci->debug_dir, bus,
 						    &debug_lpm_fops))
 		goto file_error;
 
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 502a7e6fef42..e9062806d4a2 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1063,10 +1063,11 @@ rescan:
 				tmp && tmp != qh;
 				tmp = tmp->qh_next.qh)
 			continue;
-		/* periodic qh self-unlinks on empty */
-		if (!tmp)
-			goto nogood;
-		unlink_async (ehci, qh);
+		/* periodic qh self-unlinks on empty, and a COMPLETING qh
+		 * may already be unlinked.
+		 */
+		if (tmp)
+			unlink_async(ehci, qh);
 		/* FALL THROUGH */
 	case QH_STATE_UNLINK:		/* wait for hw to finish? */
 	case QH_STATE_UNLINK_WAIT:
@@ -1083,7 +1084,6 @@ idle_timeout:
 		}
 		/* else FALL THROUGH */
 	default:
-nogood:
 		/* caller was supposed to have unlinked any requests;
 		 * that's not our job.  just leak this memory.
 		 */
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index d36e4e75e08d..12f70c302b0b 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -141,6 +141,10 @@ static void ehci_mem_cleanup (struct ehci_hcd *ehci)
 		qh_put (ehci->async);
 	ehci->async = NULL;
 
+	if (ehci->dummy)
+		qh_put(ehci->dummy);
+	ehci->dummy = NULL;
+
 	/* DMA consistent memory and pools */
 	if (ehci->qtd_pool)
 		dma_pool_destroy (ehci->qtd_pool);
@@ -227,8 +231,26 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags)
 	if (ehci->periodic == NULL) {
 		goto fail;
 	}
-	for (i = 0; i < ehci->periodic_size; i++)
-		ehci->periodic [i] = EHCI_LIST_END(ehci);
+
+	if (ehci->use_dummy_qh) {
+		struct ehci_qh_hw	*hw;
+		ehci->dummy = ehci_qh_alloc(ehci, flags);
+		if (!ehci->dummy)
+			goto fail;
+
+		hw = ehci->dummy->hw;
+		hw->hw_next = EHCI_LIST_END(ehci);
+		hw->hw_qtd_next = EHCI_LIST_END(ehci);
+		hw->hw_alt_next = EHCI_LIST_END(ehci);
+		hw->hw_token &= ~QTD_STS_ACTIVE;
+		ehci->dummy->hw = hw;
+
+		for (i = 0; i < ehci->periodic_size; i++)
+			ehci->periodic[i] = ehci->dummy->qh_dma;
+	} else {
+		for (i = 0; i < ehci->periodic_size; i++)
+			ehci->periodic[i] = EHCI_LIST_END(ehci);
+	}
 
 	/* software shadow of hardware table */
 	ehci->pshadow = kcalloc(ehci->periodic_size, sizeof(void *), flags);
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index ac9c4d7c44af..bce85055019a 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -36,6 +36,8 @@ struct ehci_mxc_priv {
 static int ehci_mxc_setup(struct usb_hcd *hcd)
 {
 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+	struct device *dev = hcd->self.controller;
+	struct mxc_usbh_platform_data *pdata = dev_get_platdata(dev);
 	int retval;
 
 	/* EHCI registers start at offset 0x100 */
@@ -63,6 +65,12 @@ static int ehci_mxc_setup(struct usb_hcd *hcd)
 
 	ehci_reset(ehci);
 
+	/* set up the PORTSCx register */
+	ehci_writel(ehci, pdata->portsc, &ehci->regs->port_status[0]);
+
+	/* is this really needed? */
+	msleep(10);
+
 	ehci_port_power(ehci, 0);
 	return 0;
 }
@@ -114,7 +122,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	struct mxc_usbh_platform_data *pdata = pdev->dev.platform_data;
 	struct usb_hcd *hcd;
 	struct resource *res;
-	int irq, ret, temp;
+	int irq, ret;
 	struct ehci_mxc_priv *priv;
 	struct device *dev = &pdev->dev;
 
@@ -188,10 +196,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 		clk_enable(priv->ahbclk);
 	}
 
-	/* set up the PORTSCx register */
-	ehci_writel(ehci, pdata->portsc, &ehci->regs->port_status[0]);
-	mdelay(10);
-
 	/* setup specific usb hw */
 	ret = mxc_initialize_usb_hw(pdev->id, pdata->flags);
 	if (ret < 0)
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index a1e8d273103f..655f3c9f88bf 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -103,6 +103,19 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
 	if (retval)
 		return retval;
 
+	if ((pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x7808) ||
+	    (pdev->vendor == PCI_VENDOR_ID_ATI && pdev->device == 0x4396)) {
+		/* EHCI controller on AMD SB700/SB800/Hudson-2/3 platforms may
+		 * read/write memory space which does not belong to it when
+		 * there is NULL pointer with T-bit set to 1 in the frame list
+		 * table. To avoid the issue, the frame list link pointer
+		 * should always contain a valid pointer to a inactive qh.
+		 */
+		ehci->use_dummy_qh = 1;
+		ehci_info(ehci, "applying AMD SB700/SB800/Hudson-2/3 EHCI "
+				"dummy qh workaround\n");
+	}
+
 	/* data structure init */
 	retval = ehci_init(hcd);
 	if (retval)
@@ -148,6 +161,18 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
 			if (pdev->revision < 0xa4)
 				ehci->no_selective_suspend = 1;
 			break;
+
+		/* MCP89 chips on the MacBookAir3,1 give EPROTO when
+		 * fetching device descriptors unless LPM is disabled.
+		 * There are also intermittent problems enumerating
+		 * devices with PPCD enabled.
+		 */
+		case 0x0d9d:
+			ehci_info(ehci, "disable lpm/ppcd for nvidia mcp89");
+			ehci->has_lpm = 0;
+			ehci->has_ppcd = 0;
+			ehci->command &= ~CMD_PPCEE;
+			break;
 		}
 		break;
 	case PCI_VENDOR_ID_VIA:
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index a92526d6e5ae..d9f78eb26572 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -98,7 +98,14 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr)
 	 */
 	*prev_p = *periodic_next_shadow(ehci, &here,
 			Q_NEXT_TYPE(ehci, *hw_p));
-	*hw_p = *shadow_next_periodic(ehci, &here, Q_NEXT_TYPE(ehci, *hw_p));
+
+	if (!ehci->use_dummy_qh ||
+	    *shadow_next_periodic(ehci, &here, Q_NEXT_TYPE(ehci, *hw_p))
+			!= EHCI_LIST_END(ehci))
+		*hw_p = *shadow_next_periodic(ehci, &here,
+				Q_NEXT_TYPE(ehci, *hw_p));
+	else
+		*hw_p = ehci->dummy->qh_dma;
 }
 
 /* how many of the uframe's 125 usecs are allocated? */
@@ -2335,7 +2342,11 @@ restart:
 				 * pointer for much longer, if at all.
 				 */
 				*q_p = q.itd->itd_next;
-				*hw_p = q.itd->hw_next;
+				if (!ehci->use_dummy_qh ||
+				    q.itd->hw_next != EHCI_LIST_END(ehci))
+					*hw_p = q.itd->hw_next;
+				else
+					*hw_p = ehci->dummy->qh_dma;
 				type = Q_NEXT_TYPE(ehci, q.itd->hw_next);
 				wmb();
 				modified = itd_complete (ehci, q.itd);
@@ -2368,7 +2379,11 @@ restart:
 				 * URB completion.
 				 */
 				*q_p = q.sitd->sitd_next;
-				*hw_p = q.sitd->hw_next;
+				if (!ehci->use_dummy_qh ||
+				    q.sitd->hw_next != EHCI_LIST_END(ehci))
+					*hw_p = q.sitd->hw_next;
+				else
+					*hw_p = ehci->dummy->qh_dma;
 				type = Q_NEXT_TYPE(ehci, q.sitd->hw_next);
 				wmb();
 				modified = sitd_complete (ehci, q.sitd);
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index bde823f704e9..ba8eab366b82 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -73,6 +73,7 @@ struct ehci_hcd {			/* one per controller */
 
 	/* async schedule support */
 	struct ehci_qh		*async;
+	struct ehci_qh		*dummy;		/* For AMD quirk use */
 	struct ehci_qh		*reclaim;
 	unsigned		scanning : 1;
 
@@ -131,6 +132,7 @@ struct ehci_hcd {			/* one per controller */
 	unsigned		need_io_watchdog:1;
 	unsigned		broken_periodic:1;
 	unsigned		fs_i_thresh:1;	/* Intel iso scheduling */
+	unsigned		use_dummy_qh:1;	/* AMD Frame List table quirk*/
 
 	/* required for usb32 quirk */
 	#define OHCI_CTRL_HCFS          (3 << 6)
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 8196fa11fec4..43a39eb56cc6 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -70,7 +70,6 @@
 #include <linux/ioport.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/list.h>
@@ -2684,7 +2683,7 @@ static int __devexit isp1362_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int __init isp1362_probe(struct platform_device *pdev)
+static int __devinit isp1362_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd;
 	struct isp1362_hcd *isp1362_hcd;
diff --git a/drivers/usb/host/ohci-jz4740.c b/drivers/usb/host/ohci-jz4740.c
index 10e1872f3ab9..931d588c3fb5 100644
--- a/drivers/usb/host/ohci-jz4740.c
+++ b/drivers/usb/host/ohci-jz4740.c
@@ -273,4 +273,4 @@ static struct platform_driver ohci_hcd_jz4740_driver = {
 	},
 };
 
-MODULE_ALIAS("platfrom:jz4740-ohci");
+MODULE_ALIAS("platform:jz4740-ohci");
diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index 6e7fb5f38db6..ee60cd3ea642 100644
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -12,7 +12,6 @@
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/debugfs.h>
-#include <linux/smp_lock.h>
 #include <asm/io.h>
 
 #include "uhci-hcd.h"
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index fef5a1f9d483..5d963e350494 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -229,6 +229,13 @@ void xhci_ring_device(struct xhci_hcd *xhci, int slot_id)
 static void xhci_disable_port(struct xhci_hcd *xhci, u16 wIndex,
 		u32 __iomem *addr, u32 port_status)
 {
+	/* Don't allow the USB core to disable SuperSpeed ports. */
+	if (xhci->port_array[wIndex] == 0x03) {
+		xhci_dbg(xhci, "Ignoring request to disable "
+				"SuperSpeed port.\n");
+		return;
+	}
+
 	/* Write 1 to disable the port */
 	xhci_writel(xhci, port_status | PORT_PE, addr);
 	port_status = xhci_readl(xhci, addr);
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 202770676da3..1d0f45f0e7a6 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1045,7 +1045,7 @@ static inline u32 xhci_get_max_esit_payload(struct xhci_hcd *xhci,
 	if (udev->speed == USB_SPEED_SUPER)
 		return ep->ss_ep_comp.wBytesPerInterval;
 
-	max_packet = ep->desc.wMaxPacketSize & 0x3ff;
+	max_packet = GET_MAX_PACKET(ep->desc.wMaxPacketSize);
 	max_burst = (ep->desc.wMaxPacketSize & 0x1800) >> 11;
 	/* A 0 in max burst means 1 transfer per ESIT */
 	return max_packet * (max_burst + 1);
@@ -1135,7 +1135,7 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 		/* Fall through */
 	case USB_SPEED_FULL:
 	case USB_SPEED_LOW:
-		max_packet = ep->desc.wMaxPacketSize & 0x3ff;
+		max_packet = GET_MAX_PACKET(ep->desc.wMaxPacketSize);
 		ep_ctx->ep_info2 |= MAX_PACKET(max_packet);
 		break;
 	default:
@@ -1443,6 +1443,13 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 	xhci->dcbaa = NULL;
 
 	scratchpad_free(xhci);
+
+	xhci->num_usb2_ports = 0;
+	xhci->num_usb3_ports = 0;
+	kfree(xhci->usb2_ports);
+	kfree(xhci->usb3_ports);
+	kfree(xhci->port_array);
+
 	xhci->page_size = 0;
 	xhci->page_shift = 0;
 	xhci->bus_suspended = 0;
@@ -1627,6 +1634,166 @@ static void xhci_set_hc_event_deq(struct xhci_hcd *xhci)
 			&xhci->ir_set->erst_dequeue);
 }
 
+static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
+		u32 __iomem *addr, u8 major_revision)
+{
+	u32 temp, port_offset, port_count;
+	int i;
+
+	if (major_revision > 0x03) {
+		xhci_warn(xhci, "Ignoring unknown port speed, "
+				"Ext Cap %p, revision = 0x%x\n",
+				addr, major_revision);
+		/* Ignoring port protocol we can't understand. FIXME */
+		return;
+	}
+
+	/* Port offset and count in the third dword, see section 7.2 */
+	temp = xhci_readl(xhci, addr + 2);
+	port_offset = XHCI_EXT_PORT_OFF(temp);
+	port_count = XHCI_EXT_PORT_COUNT(temp);
+	xhci_dbg(xhci, "Ext Cap %p, port offset = %u, "
+			"count = %u, revision = 0x%x\n",
+			addr, port_offset, port_count, major_revision);
+	/* Port count includes the current port offset */
+	if (port_offset == 0 || (port_offset + port_count - 1) > num_ports)
+		/* WTF? "Valid values are ‘1’ to MaxPorts" */
+		return;
+	port_offset--;
+	for (i = port_offset; i < (port_offset + port_count); i++) {
+		/* Duplicate entry.  Ignore the port if the revisions differ. */
+		if (xhci->port_array[i] != 0) {
+			xhci_warn(xhci, "Duplicate port entry, Ext Cap %p,"
+					" port %u\n", addr, i);
+			xhci_warn(xhci, "Port was marked as USB %u, "
+					"duplicated as USB %u\n",
+					xhci->port_array[i], major_revision);
+			/* Only adjust the roothub port counts if we haven't
+			 * found a similar duplicate.
+			 */
+			if (xhci->port_array[i] != major_revision &&
+				xhci->port_array[i] != (u8) -1) {
+				if (xhci->port_array[i] == 0x03)
+					xhci->num_usb3_ports--;
+				else
+					xhci->num_usb2_ports--;
+				xhci->port_array[i] = (u8) -1;
+			}
+			/* FIXME: Should we disable the port? */
+			continue;
+		}
+		xhci->port_array[i] = major_revision;
+		if (major_revision == 0x03)
+			xhci->num_usb3_ports++;
+		else
+			xhci->num_usb2_ports++;
+	}
+	/* FIXME: Should we disable ports not in the Extended Capabilities? */
+}
+
+/*
+ * Scan the Extended Capabilities for the "Supported Protocol Capabilities" that
+ * specify what speeds each port is supposed to be.  We can't count on the port
+ * speed bits in the PORTSC register being correct until a device is connected,
+ * but we need to set up the two fake roothubs with the correct number of USB
+ * 3.0 and USB 2.0 ports at host controller initialization time.
+ */
+static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags)
+{
+	u32 __iomem *addr;
+	u32 offset;
+	unsigned int num_ports;
+	int i, port_index;
+
+	addr = &xhci->cap_regs->hcc_params;
+	offset = XHCI_HCC_EXT_CAPS(xhci_readl(xhci, addr));
+	if (offset == 0) {
+		xhci_err(xhci, "No Extended Capability registers, "
+				"unable to set up roothub.\n");
+		return -ENODEV;
+	}
+
+	num_ports = HCS_MAX_PORTS(xhci->hcs_params1);
+	xhci->port_array = kzalloc(sizeof(*xhci->port_array)*num_ports, flags);
+	if (!xhci->port_array)
+		return -ENOMEM;
+
+	/*
+	 * For whatever reason, the first capability offset is from the
+	 * capability register base, not from the HCCPARAMS register.
+	 * See section 5.3.6 for offset calculation.
+	 */
+	addr = &xhci->cap_regs->hc_capbase + offset;
+	while (1) {
+		u32 cap_id;
+
+		cap_id = xhci_readl(xhci, addr);
+		if (XHCI_EXT_CAPS_ID(cap_id) == XHCI_EXT_CAPS_PROTOCOL)
+			xhci_add_in_port(xhci, num_ports, addr,
+					(u8) XHCI_EXT_PORT_MAJOR(cap_id));
+		offset = XHCI_EXT_CAPS_NEXT(cap_id);
+		if (!offset || (xhci->num_usb2_ports + xhci->num_usb3_ports)
+				== num_ports)
+			break;
+		/*
+		 * Once you're into the Extended Capabilities, the offset is
+		 * always relative to the register holding the offset.
+		 */
+		addr += offset;
+	}
+
+	if (xhci->num_usb2_ports == 0 && xhci->num_usb3_ports == 0) {
+		xhci_warn(xhci, "No ports on the roothubs?\n");
+		return -ENODEV;
+	}
+	xhci_dbg(xhci, "Found %u USB 2.0 ports and %u USB 3.0 ports.\n",
+			xhci->num_usb2_ports, xhci->num_usb3_ports);
+	/*
+	 * Note we could have all USB 3.0 ports, or all USB 2.0 ports.
+	 * Not sure how the USB core will handle a hub with no ports...
+	 */
+	if (xhci->num_usb2_ports) {
+		xhci->usb2_ports = kmalloc(sizeof(*xhci->usb2_ports)*
+				xhci->num_usb2_ports, flags);
+		if (!xhci->usb2_ports)
+			return -ENOMEM;
+
+		port_index = 0;
+		for (i = 0; i < num_ports; i++) {
+			if (xhci->port_array[i] == 0x03 ||
+					xhci->port_array[i] == 0 ||
+					xhci->port_array[i] == -1)
+				continue;
+
+			xhci->usb2_ports[port_index] =
+				&xhci->op_regs->port_status_base +
+				NUM_PORT_REGS*i;
+			xhci_dbg(xhci, "USB 2.0 port at index %u, "
+					"addr = %p\n", i,
+					xhci->usb2_ports[port_index]);
+			port_index++;
+		}
+	}
+	if (xhci->num_usb3_ports) {
+		xhci->usb3_ports = kmalloc(sizeof(*xhci->usb3_ports)*
+				xhci->num_usb3_ports, flags);
+		if (!xhci->usb3_ports)
+			return -ENOMEM;
+
+		port_index = 0;
+		for (i = 0; i < num_ports; i++)
+			if (xhci->port_array[i] == 0x03) {
+				xhci->usb3_ports[port_index] =
+					&xhci->op_regs->port_status_base +
+					NUM_PORT_REGS*i;
+				xhci_dbg(xhci, "USB 3.0 port at index %u, "
+						"addr = %p\n", i,
+						xhci->usb3_ports[port_index]);
+				port_index++;
+			}
+	}
+	return 0;
+}
 
 int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 {
@@ -1809,6 +1976,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 
 	if (scratchpad_alloc(xhci, flags))
 		goto fail;
+	if (xhci_setup_port_arrays(xhci, flags))
+		goto fail;
 
 	return 0;
 
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 9f3115e729b1..df558f6f84e3 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2104,7 +2104,6 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
 
 	if (!(status & STS_EINT)) {
 		spin_unlock(&xhci->lock);
-		xhci_warn(xhci, "Spurious interrupt.\n");
 		return IRQ_NONE;
 	}
 	xhci_dbg(xhci, "op reg status = %08x\n", status);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 5d7d4e951ea4..45e4a3108cc3 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -577,6 +577,65 @@ static void xhci_restore_registers(struct xhci_hcd *xhci)
 	xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base);
 }
 
+static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci)
+{
+	u64	val_64;
+
+	/* step 2: initialize command ring buffer */
+	val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
+	val_64 = (val_64 & (u64) CMD_RING_RSVD_BITS) |
+		(xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg,
+				      xhci->cmd_ring->dequeue) &
+		 (u64) ~CMD_RING_RSVD_BITS) |
+		xhci->cmd_ring->cycle_state;
+	xhci_dbg(xhci, "// Setting command ring address to 0x%llx\n",
+			(long unsigned long) val_64);
+	xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring);
+}
+
+/*
+ * The whole command ring must be cleared to zero when we suspend the host.
+ *
+ * The host doesn't save the command ring pointer in the suspend well, so we
+ * need to re-program it on resume.  Unfortunately, the pointer must be 64-byte
+ * aligned, because of the reserved bits in the command ring dequeue pointer
+ * register.  Therefore, we can't just set the dequeue pointer back in the
+ * middle of the ring (TRBs are 16-byte aligned).
+ */
+static void xhci_clear_command_ring(struct xhci_hcd *xhci)
+{
+	struct xhci_ring *ring;
+	struct xhci_segment *seg;
+
+	ring = xhci->cmd_ring;
+	seg = ring->deq_seg;
+	do {
+		memset(seg->trbs, 0, SEGMENT_SIZE);
+		seg = seg->next;
+	} while (seg != ring->deq_seg);
+
+	/* Reset the software enqueue and dequeue pointers */
+	ring->deq_seg = ring->first_seg;
+	ring->dequeue = ring->first_seg->trbs;
+	ring->enq_seg = ring->deq_seg;
+	ring->enqueue = ring->dequeue;
+
+	/*
+	 * Ring is now zeroed, so the HW should look for change of ownership
+	 * when the cycle bit is set to 1.
+	 */
+	ring->cycle_state = 1;
+
+	/*
+	 * Reset the hardware dequeue pointer.
+	 * Yes, this will need to be re-written after resume, but we're paranoid
+	 * and want to make sure the hardware doesn't access bogus memory
+	 * because, say, the BIOS or an SMI started the host without changing
+	 * the command ring pointers.
+	 */
+	xhci_set_cmd_ring_deq(xhci);
+}
+
 /*
  * Stop HC (not bus-specific)
  *
@@ -604,6 +663,7 @@ int xhci_suspend(struct xhci_hcd *xhci)
 		spin_unlock_irq(&xhci->lock);
 		return -ETIMEDOUT;
 	}
+	xhci_clear_command_ring(xhci);
 
 	/* step 3: save registers */
 	xhci_save_registers(xhci);
@@ -635,7 +695,6 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	u32			command, temp = 0;
 	struct usb_hcd		*hcd = xhci_to_hcd(xhci);
 	struct pci_dev		*pdev = to_pci_dev(hcd->self.controller);
-	u64	val_64;
 	int	old_state, retval;
 
 	old_state = hcd->state;
@@ -648,15 +707,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 		/* step 1: restore register */
 		xhci_restore_registers(xhci);
 		/* step 2: initialize command ring buffer */
-		val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
-		val_64 = (val_64 & (u64) CMD_RING_RSVD_BITS) |
-			 (xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg,
-					       xhci->cmd_ring->dequeue) &
-			 (u64) ~CMD_RING_RSVD_BITS) |
-			 xhci->cmd_ring->cycle_state;
-		xhci_dbg(xhci, "// Setting command ring address to 0x%llx\n",
-				(long unsigned long) val_64);
-		xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring);
+		xhci_set_cmd_ring_deq(xhci);
 		/* step 3: restore state and start state*/
 		/* step 3: set CRS flag */
 		command = xhci_readl(xhci, &xhci->op_regs->command);
@@ -714,6 +765,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 		return retval;
 	}
 
+	spin_unlock_irq(&xhci->lock);
 	/* Re-setup MSI-X */
 	if (hcd->irq)
 		free_irq(hcd->irq, hcd);
@@ -736,6 +788,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 		hcd->irq = pdev->irq;
 	}
 
+	spin_lock_irq(&xhci->lock);
 	/* step 4: set Run/Stop bit */
 	command = xhci_readl(xhci, &xhci->op_regs->command);
 	command |= CMD_RUN;
@@ -1496,6 +1549,15 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
 		cmd_completion = command->completion;
 		cmd_status = &command->status;
 		command->command_trb = xhci->cmd_ring->enqueue;
+
+		/* Enqueue pointer can be left pointing to the link TRB,
+		 * we must handle that
+		 */
+		if ((command->command_trb->link.control & TRB_TYPE_BITMASK)
+				== TRB_TYPE(TRB_LINK))
+			command->command_trb =
+				xhci->cmd_ring->enq_seg->next->trbs;
+
 		list_add_tail(&command->cmd_list, &virt_dev->cmd_list);
 	} else {
 		in_ctx = virt_dev->in_ctx;
@@ -2219,6 +2281,15 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev)
 	/* Attempt to submit the Reset Device command to the command ring */
 	spin_lock_irqsave(&xhci->lock, flags);
 	reset_device_cmd->command_trb = xhci->cmd_ring->enqueue;
+
+	/* Enqueue pointer can be left pointing to the link TRB,
+	 * we must handle that
+	 */
+	if ((reset_device_cmd->command_trb->link.control & TRB_TYPE_BITMASK)
+			== TRB_TYPE(TRB_LINK))
+		reset_device_cmd->command_trb =
+			xhci->cmd_ring->enq_seg->next->trbs;
+
 	list_add_tail(&reset_device_cmd->cmd_list, &virt_dev->cmd_list);
 	ret = xhci_queue_reset_device(xhci, slot_id);
 	if (ret) {
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 93d3bf4d213c..170c367112d2 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -454,6 +454,24 @@ struct xhci_doorbell_array {
 
 
 /**
+ * struct xhci_protocol_caps
+ * @revision:		major revision, minor revision, capability ID,
+ *			and next capability pointer.
+ * @name_string:	Four ASCII characters to say which spec this xHC
+ *			follows, typically "USB ".
+ * @port_info:		Port offset, count, and protocol-defined information.
+ */
+struct xhci_protocol_caps {
+	u32	revision;
+	u32	name_string;
+	u32	port_info;
+};
+
+#define	XHCI_EXT_PORT_MAJOR(x)	(((x) >> 24) & 0xff)
+#define	XHCI_EXT_PORT_OFF(x)	((x) & 0xff)
+#define	XHCI_EXT_PORT_COUNT(x)	(((x) >> 8) & 0xff)
+
+/**
  * struct xhci_container_ctx
  * @type: Type of context.  Used to calculated offsets to contained contexts.
  * @size: Size of the context data
@@ -621,6 +639,11 @@ struct xhci_ep_ctx {
 #define MAX_PACKET_MASK		(0xffff << 16)
 #define MAX_PACKET_DECODED(p)	(((p) >> 16) & 0xffff)
 
+/* Get max packet size from ep desc. Bit 10..0 specify the max packet size.
+ * USB2.0 spec 9.6.6.
+ */
+#define GET_MAX_PACKET(p)	((p) & 0x7ff)
+
 /* tx_info bitmasks */
 #define AVG_TRB_LENGTH_FOR_EP(p)	((p) & 0xffff)
 #define MAX_ESIT_PAYLOAD_FOR_EP(p)	(((p) & 0xffff) << 16)
@@ -1235,6 +1258,14 @@ struct xhci_hcd {
 	u32			suspended_ports[8];	/* which ports are
 							   suspended */
 	unsigned long		resume_done[MAX_HC_PORTS];
+	/* Is each xHCI roothub port a USB 3.0, USB 2.0, or USB 1.1 port? */
+	u8			*port_array;
+	/* Array of pointers to USB 3.0 PORTSC registers */
+	u32 __iomem		**usb3_ports;
+	unsigned int		num_usb3_ports;
+	/* Array of pointers to USB 2.0 PORTSC registers */
+	u32 __iomem		**usb2_ports;
+	unsigned int		num_usb2_ports;
 };
 
 /* For testing purposes */
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index 5a47805d9580..c90c89dc0003 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -364,7 +364,7 @@ static int mts_scsi_host_reset(struct scsi_cmnd *srb)
 }
 
 static int
-mts_scsi_queuecommand(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback);
+mts_scsi_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *srb);
 
 static void mts_transfer_cleanup( struct urb *transfer );
 static void mts_do_sg(struct urb * transfer);
@@ -573,7 +573,7 @@ mts_build_transfer_context(struct scsi_cmnd *srb, struct mts_desc* desc)
 
 
 static int
-mts_scsi_queuecommand(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback)
+mts_scsi_queuecommand_lck(struct scsi_cmnd *srb, mts_scsi_cmnd_callback callback)
 {
 	struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]);
 	int err = 0;
@@ -626,6 +626,8 @@ out:
 	return err;
 }
 
+static DEF_SCSI_QCMD(mts_scsi_queuecommand)
+
 static struct scsi_host_template mts_scsi_host_template = {
 	.module			= THIS_MODULE,
 	.name			= "microtekX6",
diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c
index 2f43c57743c9..9251773ecef4 100644
--- a/drivers/usb/misc/cypress_cy7c63.c
+++ b/drivers/usb/misc/cypress_cy7c63.c
@@ -196,11 +196,9 @@ static ssize_t get_port1_handler(struct device *dev,
 	return read_port(dev, attr, buf, 1, CYPRESS_READ_PORT_ID1);
 }
 
-static DEVICE_ATTR(port0, S_IWUGO | S_IRUGO,
-		   get_port0_handler, set_port0_handler);
+static DEVICE_ATTR(port0, S_IRUGO | S_IWUSR, get_port0_handler, set_port0_handler);
 
-static DEVICE_ATTR(port1, S_IWUGO | S_IRUGO,
-		   get_port1_handler, set_port1_handler);
+static DEVICE_ATTR(port1, S_IRUGO | S_IWUSR, get_port1_handler, set_port1_handler);
 
 
 static int cypress_probe(struct usb_interface *interface,
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 7a10e48b78f9..e573e4704015 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -553,6 +553,7 @@ static long iowarrior_ioctl(struct file *file, unsigned int cmd,
 			/* needed for power consumption */
 			struct usb_config_descriptor *cfg_descriptor = &dev->udev->actconfig->desc;
 
+			memset(&info, 0, sizeof(info));
 			/* directly from the descriptor */
 			info.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
 			info.product = dev->product_id;
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index 70d00e99a4b4..dd573abd2d1e 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -3008,6 +3008,7 @@ sisusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 #else
 			x.sisusb_conactive  = 0;
 #endif
+			memset(x.sisusb_reserved, 0, sizeof(x.sisusb_reserved));
 
 			if (copy_to_user((void __user *)arg, &x, sizeof(x)))
 				retval = -EFAULT;
diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c
index d77aba46ae85..f63776a48e2a 100644
--- a/drivers/usb/misc/trancevibrator.c
+++ b/drivers/usb/misc/trancevibrator.c
@@ -86,7 +86,7 @@ static ssize_t set_speed(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-static DEVICE_ATTR(speed, S_IWUGO | S_IRUGO, show_speed, set_speed);
+static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR, show_speed, set_speed);
 
 static int tv_probe(struct usb_interface *interface,
 		    const struct usb_device_id *id)
diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c
index 63da2c3c838f..c96f51de1696 100644
--- a/drivers/usb/misc/usbled.c
+++ b/drivers/usb/misc/usbled.c
@@ -94,7 +94,7 @@ static ssize_t set_##value(struct device *dev, struct device_attribute *attr, co
 	change_color(led);						\
 	return count;							\
 }									\
-static DEVICE_ATTR(value, S_IWUGO | S_IRUGO, show_##value, set_##value);
+static DEVICE_ATTR(value, S_IRUGO | S_IWUSR, show_##value, set_##value);
 show_set(blue);
 show_set(red);
 show_set(green);
diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c
index de8ef945b536..417b8f207e8b 100644
--- a/drivers/usb/misc/usbsevseg.c
+++ b/drivers/usb/misc/usbsevseg.c
@@ -192,7 +192,7 @@ static ssize_t set_attr_##name(struct device *dev, 		\
 								\
 	return count;						\
 }								\
-static DEVICE_ATTR(name, S_IWUGO | S_IRUGO, show_attr_##name, set_attr_##name);
+static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_attr_##name, set_attr_##name);
 
 static ssize_t show_attr_text(struct device *dev,
 	struct device_attribute *attr, char *buf)
@@ -223,7 +223,7 @@ static ssize_t set_attr_text(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(text, S_IWUGO | S_IRUGO, show_attr_text, set_attr_text);
+static DEVICE_ATTR(text, S_IRUGO | S_IWUSR, show_attr_text, set_attr_text);
 
 static ssize_t show_attr_decimals(struct device *dev,
 	struct device_attribute *attr, char *buf)
@@ -272,8 +272,7 @@ static ssize_t set_attr_decimals(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(decimals, S_IWUGO | S_IRUGO,
-	show_attr_decimals, set_attr_decimals);
+static DEVICE_ATTR(decimals, S_IRUGO | S_IWUSR, show_attr_decimals, set_attr_decimals);
 
 static ssize_t show_attr_textmode(struct device *dev,
 	struct device_attribute *attr, char *buf)
@@ -319,8 +318,7 @@ static ssize_t set_attr_textmode(struct device *dev,
 	return -EINVAL;
 }
 
-static DEVICE_ATTR(textmode, S_IWUGO | S_IRUGO,
-	show_attr_textmode, set_attr_textmode);
+static DEVICE_ATTR(textmode, S_IRUGO | S_IWUSR, show_attr_textmode, set_attr_textmode);
 
 
 MYDEV_ATTR_SIMPLE_UNSIGNED(powered, update_display_powered);
diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c
index 796e2f68f749..4ff21587ab03 100644
--- a/drivers/usb/misc/uss720.c
+++ b/drivers/usb/misc/uss720.c
@@ -3,7 +3,7 @@
 /*
  *	uss720.c  --  USS720 USB Parport Cable.
  *
- *	Copyright (C) 1999, 2005
+ *	Copyright (C) 1999, 2005, 2010
  *	    Thomas Sailer (t.sailer@alumni.ethz.ch)
  *
  *	This program is free software; you can redistribute it and/or modify
@@ -776,6 +776,8 @@ static const struct usb_device_id uss720_table[] = {
 	{ USB_DEVICE(0x0557, 0x2001) },
 	{ USB_DEVICE(0x0729, 0x1284) },
 	{ USB_DEVICE(0x1293, 0x0002) },
+	{ USB_DEVICE(0x1293, 0x0002) },
+	{ USB_DEVICE(0x050d, 0x0002) },
 	{ }						/* Terminating entry */
 };
 
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index 719c6180b31f..ac5bfd619e62 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -536,6 +536,7 @@ static const struct file_operations yurex_fops = {
 	.open =		yurex_open,
 	.release =	yurex_release,
 	.fasync	=	yurex_fasync,
+	.llseek =	default_llseek,
 };
 
 
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index 44cb37b5a4dc..c436e1e2c3b6 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -15,7 +15,6 @@
 #include <linux/poll.h>
 #include <linux/compat.h>
 #include <linux/mm.h>
-#include <linux/smp_lock.h>
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 
diff --git a/drivers/usb/mon/mon_stat.c b/drivers/usb/mon/mon_stat.c
index 8ec94f15a738..e5ce42bd316e 100644
--- a/drivers/usb/mon/mon_stat.c
+++ b/drivers/usb/mon/mon_stat.c
@@ -11,7 +11,6 @@
 #include <linux/slab.h>
 #include <linux/usb.h>
 #include <linux/fs.h>
-#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 
 #include "usb_mon.h"
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 611a9d274363..fcb5206a65bd 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -171,8 +171,9 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
 	}
 
 	/* Start sampling ID pin, when plug is removed from MUSB */
-	if (is_otg_enabled(musb) && (musb->xceiv->state == OTG_STATE_B_IDLE
-		|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
+	if ((is_otg_enabled(musb) && (musb->xceiv->state == OTG_STATE_B_IDLE
+		|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) ||
+		(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
 		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
 		musb->a_wait_bcon = TIMER_DELAY;
 	}
@@ -323,30 +324,8 @@ int musb_platform_set_mode(struct musb *musb, u8 musb_mode)
 	return -EIO;
 }
 
-int __init musb_platform_init(struct musb *musb, void *board_data)
+static void musb_platform_reg_init(struct musb *musb)
 {
-
-	/*
-	 * Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE
-	 * and OTG HOST modes, while rev 1.1 and greater require PE7 to
-	 * be low for DEVICE mode and high for HOST mode. We set it high
-	 * here because we are in host mode
-	 */
-
-	if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) {
-		printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d \n",
-			musb->config->gpio_vrsel);
-		return -ENODEV;
-	}
-	gpio_direction_output(musb->config->gpio_vrsel, 0);
-
-	usb_nop_xceiv_register();
-	musb->xceiv = otg_get_transceiver();
-	if (!musb->xceiv) {
-		gpio_free(musb->config->gpio_vrsel);
-		return -ENODEV;
-	}
-
 	if (ANOMALY_05000346) {
 		bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value);
 		SSYNC();
@@ -358,7 +337,8 @@ int __init musb_platform_init(struct musb *musb, void *board_data)
 	}
 
 	/* Configure PLL oscillator register */
-	bfin_write_USB_PLLOSC_CTRL(0x30a8);
+	bfin_write_USB_PLLOSC_CTRL(0x3080 |
+			((480/musb->config->clkin) << 1));
 	SSYNC();
 
 	bfin_write_USB_SRP_CLKDIV((get_sclk()/1000) / 32 - 1);
@@ -380,6 +360,33 @@ int __init musb_platform_init(struct musb *musb, void *board_data)
 				EP2_RX_ENA | EP3_RX_ENA | EP4_RX_ENA |
 				EP5_RX_ENA | EP6_RX_ENA | EP7_RX_ENA);
 	SSYNC();
+}
+
+int __init musb_platform_init(struct musb *musb, void *board_data)
+{
+
+	/*
+	 * Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE
+	 * and OTG HOST modes, while rev 1.1 and greater require PE7 to
+	 * be low for DEVICE mode and high for HOST mode. We set it high
+	 * here because we are in host mode
+	 */
+
+	if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) {
+		printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d\n",
+			musb->config->gpio_vrsel);
+		return -ENODEV;
+	}
+	gpio_direction_output(musb->config->gpio_vrsel, 0);
+
+	usb_nop_xceiv_register();
+	musb->xceiv = otg_get_transceiver();
+	if (!musb->xceiv) {
+		gpio_free(musb->config->gpio_vrsel);
+		return -ENODEV;
+	}
+
+	musb_platform_reg_init(musb);
 
 	if (is_host_enabled(musb)) {
 		musb->board_set_vbus = bfin_set_vbus;
@@ -394,6 +401,27 @@ int __init musb_platform_init(struct musb *musb, void *board_data)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+void musb_platform_save_context(struct musb *musb,
+			struct musb_context_registers *musb_context)
+{
+	if (is_host_active(musb))
+		/*
+		 * During hibernate gpio_vrsel will change from high to low
+		 * low which will generate wakeup event resume the system
+		 * immediately.  Set it to 0 before hibernate to avoid this
+		 * wakeup event.
+		 */
+		gpio_set_value(musb->config->gpio_vrsel, 0);
+}
+
+void musb_platform_restore_context(struct musb *musb,
+			struct musb_context_registers *musb_context)
+{
+	musb_platform_reg_init(musb);
+}
+#endif
+
 int musb_platform_exit(struct musb *musb)
 {
 	gpio_free(musb->config->gpio_vrsel);
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index c9f9024c5515..99beebce8550 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -552,7 +552,8 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 	if (int_usb & MUSB_INTR_SESSREQ) {
 		void __iomem *mbase = musb->mregs;
 
-		if (devctl & MUSB_DEVCTL_BDEVICE) {
+		if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS
+				&& (devctl & MUSB_DEVCTL_BDEVICE)) {
 			DBG(3, "SessReq while on B state\n");
 			return IRQ_HANDLED;
 		}
@@ -1052,6 +1053,11 @@ static void musb_shutdown(struct platform_device *pdev)
 		clk_put(musb->clock);
 	spin_unlock_irqrestore(&musb->lock, flags);
 
+	if (!is_otg_enabled(musb) && is_host_enabled(musb))
+		usb_remove_hcd(musb_to_hcd(musb));
+	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
+	musb_platform_exit(musb);
+
 	/* FIXME power down */
 }
 
@@ -2110,12 +2116,15 @@ bad_config:
 	 * Otherwise, wait till the gadget driver hooks up.
 	 */
 	if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
+		struct usb_hcd	*hcd = musb_to_hcd(musb);
+
 		MUSB_HST_MODE(musb);
 		musb->xceiv->default_a = 1;
 		musb->xceiv->state = OTG_STATE_A_IDLE;
 
 		status = usb_add_hcd(musb_to_hcd(musb), -1, 0);
 
+		hcd->self.uses_pio_for_control = 1;
 		DBG(1, "%s mode, status %d, devctl %02x %c\n",
 			"HOST", status,
 			musb_readb(musb->mregs, MUSB_DEVCTL),
@@ -2244,13 +2253,6 @@ static int __exit musb_remove(struct platform_device *pdev)
 	 */
 	musb_exit_debugfs(musb);
 	musb_shutdown(pdev);
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
-	if (musb->board_mode == MUSB_HOST)
-		usb_remove_hcd(musb_to_hcd(musb));
-#endif
-	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
-	musb_platform_exit(musb);
-	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
 
 	musb_free(musb);
 	iounmap(ctrl_base);
@@ -2411,9 +2413,6 @@ static int musb_suspend(struct device *dev)
 	unsigned long	flags;
 	struct musb	*musb = dev_to_musb(&pdev->dev);
 
-	if (!musb->clock)
-		return 0;
-
 	spin_lock_irqsave(&musb->lock, flags);
 
 	if (is_peripheral_active(musb)) {
@@ -2428,10 +2427,12 @@ static int musb_suspend(struct device *dev)
 
 	musb_save_context(musb);
 
-	if (musb->set_clock)
-		musb->set_clock(musb->clock, 0);
-	else
-		clk_disable(musb->clock);
+	if (musb->clock) {
+		if (musb->set_clock)
+			musb->set_clock(musb->clock, 0);
+		else
+			clk_disable(musb->clock);
+	}
 	spin_unlock_irqrestore(&musb->lock, flags);
 	return 0;
 }
@@ -2441,13 +2442,12 @@ static int musb_resume_noirq(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct musb	*musb = dev_to_musb(&pdev->dev);
 
-	if (!musb->clock)
-		return 0;
-
-	if (musb->set_clock)
-		musb->set_clock(musb->clock, 1);
-	else
-		clk_enable(musb->clock);
+	if (musb->clock) {
+		if (musb->set_clock)
+			musb->set_clock(musb->clock, 1);
+		else
+			clk_enable(musb->clock);
+	}
 
 	musb_restore_context(musb);
 
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 69797e5b46a7..febaabcc2b35 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -487,7 +487,7 @@ struct musb_context_registers {
 };
 
 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
-    defined(CONFIG_ARCH_OMAP4)
+    defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_BLACKFIN)
 extern void musb_platform_save_context(struct musb *musb,
 		struct musb_context_registers *musb_context);
 extern void musb_platform_restore_context(struct musb *musb,
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 1cbeaa17ffff..d5b9cfcc5977 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -92,6 +92,59 @@
 
 /* ----------------------------------------------------------------------- */
 
+/* Maps the buffer to dma  */
+
+static inline void map_dma_buffer(struct musb_request *request,
+				struct musb *musb)
+{
+	if (request->request.dma == DMA_ADDR_INVALID) {
+		request->request.dma = dma_map_single(
+				musb->controller,
+				request->request.buf,
+				request->request.length,
+				request->tx
+					? DMA_TO_DEVICE
+					: DMA_FROM_DEVICE);
+		request->mapped = 1;
+	} else {
+		dma_sync_single_for_device(musb->controller,
+			request->request.dma,
+			request->request.length,
+			request->tx
+				? DMA_TO_DEVICE
+				: DMA_FROM_DEVICE);
+		request->mapped = 0;
+	}
+}
+
+/* Unmap the buffer from dma and maps it back to cpu */
+static inline void unmap_dma_buffer(struct musb_request *request,
+				struct musb *musb)
+{
+	if (request->request.dma == DMA_ADDR_INVALID) {
+		DBG(20, "not unmapping a never mapped buffer\n");
+		return;
+	}
+	if (request->mapped) {
+		dma_unmap_single(musb->controller,
+			request->request.dma,
+			request->request.length,
+			request->tx
+				? DMA_TO_DEVICE
+				: DMA_FROM_DEVICE);
+		request->request.dma = DMA_ADDR_INVALID;
+		request->mapped = 0;
+	} else {
+		dma_sync_single_for_cpu(musb->controller,
+			request->request.dma,
+			request->request.length,
+			request->tx
+				? DMA_TO_DEVICE
+				: DMA_FROM_DEVICE);
+
+	}
+}
+
 /*
  * Immediately complete a request.
  *
@@ -119,24 +172,8 @@ __acquires(ep->musb->lock)
 
 	ep->busy = 1;
 	spin_unlock(&musb->lock);
-	if (is_dma_capable()) {
-		if (req->mapped) {
-			dma_unmap_single(musb->controller,
-					req->request.dma,
-					req->request.length,
-					req->tx
-						? DMA_TO_DEVICE
-						: DMA_FROM_DEVICE);
-			req->request.dma = DMA_ADDR_INVALID;
-			req->mapped = 0;
-		} else if (req->request.dma != DMA_ADDR_INVALID)
-			dma_sync_single_for_cpu(musb->controller,
-					req->request.dma,
-					req->request.length,
-					req->tx
-						? DMA_TO_DEVICE
-						: DMA_FROM_DEVICE);
-	}
+	if (is_dma_capable() && ep->dma)
+		unmap_dma_buffer(req, musb);
 	if (request->status == 0)
 		DBG(5, "%s done request %p,  %d/%d\n",
 				ep->end_point.name, request,
@@ -395,6 +432,13 @@ static void txstate(struct musb *musb, struct musb_request *req)
 #endif
 
 	if (!use_dma) {
+		/*
+		 * Unmap the dma buffer back to cpu if dma channel
+		 * programming fails
+		 */
+		if (is_dma_capable() && musb_ep->dma)
+			unmap_dma_buffer(req, musb);
+
 		musb_write_fifo(musb_ep->hw_ep, fifo_count,
 				(u8 *) (request->buf + request->actual));
 		request->actual += fifo_count;
@@ -644,10 +688,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 	 */
 
 				csr |= MUSB_RXCSR_DMAENAB;
-				if (!musb_ep->hb_mult &&
-					musb_ep->hw_ep->rx_double_buffered)
-					csr |= MUSB_RXCSR_AUTOCLEAR;
 #ifdef USE_MODE1
+				csr |= MUSB_RXCSR_AUTOCLEAR;
 				/* csr |= MUSB_RXCSR_DMAMODE; */
 
 				/* this special sequence (enabling and then
@@ -656,6 +698,10 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 				 */
 				musb_writew(epio, MUSB_RXCSR,
 					csr | MUSB_RXCSR_DMAMODE);
+#else
+				if (!musb_ep->hb_mult &&
+					musb_ep->hw_ep->rx_double_buffered)
+					csr |= MUSB_RXCSR_AUTOCLEAR;
 #endif
 				musb_writew(epio, MUSB_RXCSR, csr);
 
@@ -711,6 +757,21 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 					return;
 			}
 #endif
+			/*
+			 * Unmap the dma buffer back to cpu if dma channel
+			 * programming fails. This buffer is mapped if the
+			 * channel allocation is successful
+			 */
+			 if (is_dma_capable() && musb_ep->dma) {
+				unmap_dma_buffer(req, musb);
+
+				/*
+				 * Clear DMAENAB and AUTOCLEAR for the
+				 * PIO mode transfer
+				 */
+				csr &= ~(MUSB_RXCSR_DMAENAB | MUSB_RXCSR_AUTOCLEAR);
+				musb_writew(epio, MUSB_RXCSR, csr);
+			}
 
 			musb_read_fifo(musb_ep->hw_ep, fifo_count, (u8 *)
 					(request->buf + request->actual));
@@ -807,7 +868,7 @@ void musb_g_rx(struct musb *musb, u8 epnum)
 
 #if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_TUSB_OMAP_DMA)
 		/* Autoclear doesn't clear RxPktRdy for short packets */
-		if ((dma->desired_mode == 0)
+		if ((dma->desired_mode == 0 && !hw_ep->rx_double_buffered)
 				|| (dma->actual_len
 					& (musb_ep->packet_sz - 1))) {
 			/* ack the read! */
@@ -818,8 +879,16 @@ void musb_g_rx(struct musb *musb, u8 epnum)
 		/* incomplete, and not short? wait for next IN packet */
 		if ((request->actual < request->length)
 				&& (musb_ep->dma->actual_len
-					== musb_ep->packet_sz))
+					== musb_ep->packet_sz)) {
+			/* In double buffer case, continue to unload fifo if
+ 			 * there is Rx packet in FIFO.
+ 			 **/
+			csr = musb_readw(epio, MUSB_RXCSR);
+			if ((csr & MUSB_RXCSR_RXPKTRDY) &&
+				hw_ep->rx_double_buffered)
+				goto exit;
 			return;
+		}
 #endif
 		musb_g_giveback(musb_ep, request, 0);
 
@@ -827,7 +896,9 @@ void musb_g_rx(struct musb *musb, u8 epnum)
 		if (!request)
 			return;
 	}
-
+#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_TUSB_OMAP_DMA)
+exit:
+#endif
 	/* Analyze request */
 	rxstate(musb, to_musb_request(request));
 }
@@ -916,13 +987,9 @@ static int musb_gadget_enable(struct usb_ep *ep,
 		 * likewise high bandwidth periodic tx
 		 */
 		/* Set TXMAXP with the FIFO size of the endpoint
-		 * to disable double buffering mode. Currently, It seems that double
-		 * buffering has problem if musb RTL revision number < 2.0.
+		 * to disable double buffering mode.
 		 */
-		if (musb->hwvers < MUSB_HWVERS_2000)
-			musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx);
-		else
-			musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz | (musb_ep->hb_mult << 11));
+		musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz | (musb_ep->hb_mult << 11));
 
 		csr = MUSB_TXCSR_MODE | MUSB_TXCSR_CLRDATATOG;
 		if (musb_readw(regs, MUSB_TXCSR)
@@ -958,10 +1025,7 @@ static int musb_gadget_enable(struct usb_ep *ep,
 		/* Set RXMAXP with the FIFO size of the endpoint
 		 * to disable double buffering mode.
 		 */
-		if (musb->hwvers < MUSB_HWVERS_2000)
-			musb_writew(regs, MUSB_RXMAXP, hw_ep->max_packet_sz_rx);
-		else
-			musb_writew(regs, MUSB_RXMAXP, musb_ep->packet_sz | (musb_ep->hb_mult << 11));
+		musb_writew(regs, MUSB_RXMAXP, musb_ep->packet_sz | (musb_ep->hb_mult << 11));
 
 		/* force shared fifo to OUT-only mode */
 		if (hw_ep->is_shared_fifo) {
@@ -1147,28 +1211,9 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req,
 	request->epnum = musb_ep->current_epnum;
 	request->tx = musb_ep->is_in;
 
-	if (is_dma_capable() && musb_ep->dma) {
-		if (request->request.dma == DMA_ADDR_INVALID) {
-			request->request.dma = dma_map_single(
-					musb->controller,
-					request->request.buf,
-					request->request.length,
-					request->tx
-						? DMA_TO_DEVICE
-						: DMA_FROM_DEVICE);
-			request->mapped = 1;
-		} else {
-			dma_sync_single_for_device(musb->controller,
-					request->request.dma,
-					request->request.length,
-					request->tx
-						? DMA_TO_DEVICE
-						: DMA_FROM_DEVICE);
-			request->mapped = 0;
-		}
-	} else if (!req->buf) {
-		return -ENODATA;
-	} else
+	if (is_dma_capable() && musb_ep->dma)
+		map_dma_buffer(request, musb);
+	else
 		request->mapped = 0;
 
 	spin_lock_irqsave(&musb->lock, lockflags);
@@ -1695,8 +1740,10 @@ int __init musb_gadget_setup(struct musb *musb)
 	musb_platform_try_idle(musb, 0);
 
 	status = device_register(&musb->g.dev);
-	if (status != 0)
+	if (status != 0) {
+		put_device(&musb->g.dev);
 		the_gadget = NULL;
+	}
 	return status;
 }
 
@@ -1786,6 +1833,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
 		spin_unlock_irqrestore(&musb->lock, flags);
 
 		if (is_otg_enabled(musb)) {
+			struct usb_hcd	*hcd = musb_to_hcd(musb);
+
 			DBG(3, "OTG startup...\n");
 
 			/* REVISIT:  funcall to other code, which also
@@ -1800,6 +1849,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
 				musb->gadget_driver = NULL;
 				musb->g.dev.driver = NULL;
 				spin_unlock_irqrestore(&musb->lock, flags);
+			} else {
+				hcd->self.uses_pio_for_control = 1;
 			}
 		}
 	}
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index 244267527a60..5a727c5b8676 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -633,8 +633,9 @@ static inline u8  musb_read_txhubaddr(void __iomem *mbase, u8 epnum)
 	return 0;
 }
 
-static inline void  musb_read_txhubport(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_txhubport(void __iomem *mbase, u8 epnum)
 {
+	return 0;
 }
 
 #endif /* CONFIG_BLACKFIN */
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 6f771af5cbdb..563114d613d6 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -158,6 +158,8 @@ static int dma_channel_program(struct dma_channel *channel,
 				dma_addr_t dma_addr, u32 len)
 {
 	struct musb_dma_channel *musb_channel = channel->private_data;
+	struct musb_dma_controller *controller = musb_channel->controller;
+	struct musb *musb = controller->private_data;
 
 	DBG(2, "ep%d-%s pkt_sz %d, dma_addr 0x%x length %d, mode %d\n",
 		musb_channel->epnum,
@@ -167,6 +169,18 @@ static int dma_channel_program(struct dma_channel *channel,
 	BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN ||
 		channel->status == MUSB_DMA_STATUS_BUSY);
 
+	/*
+	 * The DMA engine in RTL1.8 and above cannot handle
+	 * DMA addresses that are not aligned to a 4 byte boundary.
+	 * It ends up masking the last two bits of the address
+	 * programmed in DMA_ADDR.
+	 *
+	 * Fail such DMA transfers, so that the backup PIO mode
+	 * can carry out the transfer
+	 */
+	if ((musb->hwvers >= MUSB_HWVERS_1800) && (dma_addr % 4))
+		return false;
+
 	channel->actual_len = 0;
 	musb_channel->start_addr = dma_addr;
 	musb_channel->len = len;
diff --git a/drivers/usb/otg/langwell_otg.c b/drivers/usb/otg/langwell_otg.c
index bdc3ea66be69..9fea48264fa2 100644
--- a/drivers/usb/otg/langwell_otg.c
+++ b/drivers/usb/otg/langwell_otg.c
@@ -1896,7 +1896,7 @@ set_a_bus_req(struct device *dev, struct device_attribute *attr,
 	}
 	return count;
 }
-static DEVICE_ATTR(a_bus_req, S_IRUGO | S_IWUGO, get_a_bus_req, set_a_bus_req);
+static DEVICE_ATTR(a_bus_req, S_IRUGO | S_IWUSR, get_a_bus_req, set_a_bus_req);
 
 static ssize_t
 get_a_bus_drop(struct device *dev, struct device_attribute *attr, char *buf)
@@ -1942,8 +1942,7 @@ set_a_bus_drop(struct device *dev, struct device_attribute *attr,
 	}
 	return count;
 }
-static DEVICE_ATTR(a_bus_drop, S_IRUGO | S_IWUGO,
-	get_a_bus_drop, set_a_bus_drop);
+static DEVICE_ATTR(a_bus_drop, S_IRUGO | S_IWUSR, get_a_bus_drop, set_a_bus_drop);
 
 static ssize_t
 get_b_bus_req(struct device *dev, struct device_attribute *attr, char *buf)
@@ -1988,7 +1987,7 @@ set_b_bus_req(struct device *dev, struct device_attribute *attr,
 	}
 	return count;
 }
-static DEVICE_ATTR(b_bus_req, S_IRUGO | S_IWUGO, get_b_bus_req, set_b_bus_req);
+static DEVICE_ATTR(b_bus_req, S_IRUGO | S_IWUSR, get_b_bus_req, set_b_bus_req);
 
 static ssize_t
 set_a_clr_err(struct device *dev, struct device_attribute *attr,
@@ -2012,7 +2011,7 @@ set_a_clr_err(struct device *dev, struct device_attribute *attr,
 	}
 	return count;
 }
-static DEVICE_ATTR(a_clr_err, S_IWUGO, NULL, set_a_clr_err);
+static DEVICE_ATTR(a_clr_err, S_IWUSR, NULL, set_a_clr_err);
 
 static struct attribute *inputs_attrs[] = {
 	&dev_attr_a_bus_req.attr,
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 89a9a5847803..2dec50013528 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -201,6 +201,7 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
+	{ USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) },
 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
@@ -696,6 +697,7 @@ static struct usb_device_id id_table_combined [] = {
 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
 	{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_SERIAL_VX7_PID) },
+	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_CT29B_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
 	{ USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
@@ -794,6 +796,9 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LOGBOOKML_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
+	{ USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
+		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ },					/* Optional parameter entry */
 	{ }					/* Terminating entry */
 };
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 7dfe02f1fb6a..bf0867285481 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -114,6 +114,9 @@
 /* Lenz LI-USB Computer Interface. */
 #define FTDI_LENZ_LIUSB_PID	0xD780
 
+/* Vardaan Enterprises Serial Interface VEUSB422R3 */
+#define FTDI_VARDAAN_PID	0xF070
+
 /*
  * Xsens Technologies BV products (http://www.xsens.com).
  */
@@ -721,6 +724,7 @@
  */
 #define RTSYSTEMS_VID			0x2100	/* Vendor ID */
 #define RTSYSTEMS_SERIAL_VX7_PID	0x9e52	/* Serial converter for VX-7 Radios using FT232RL */
+#define RTSYSTEMS_CT29B_PID		0x9e54	/* CT29B Radio Cable */
 
 /*
  * Bayer Ascensia Contour blood glucose meter USB-converter cable.
@@ -1077,6 +1081,11 @@
 #define MJSG_HD_RADIO_PID	0x937C
 
 /*
+ * D.O.Tec products (http://www.directout.eu)
+ */
+#define FTDI_DOTEC_PID 0x9868
+
+/*
  * Xverve Signalyzer tools (http://www.signalyzer.com/)
  */
 #define XVERVE_SIGNALYZER_ST_PID	0xBCA0
@@ -1100,3 +1109,10 @@
 #define FTDI_SCIENCESCOPE_LOGBOOKML_PID		0xFF18
 #define FTDI_SCIENCESCOPE_LS_LOGBOOK_PID	0xFF1C
 #define FTDI_SCIENCESCOPE_HS_LOGBOOK_PID	0xFF1D
+
+/*
+ * Milkymist One JTAG/Serial
+ */
+#define QIHARDWARE_VID			0x20B7
+#define MILKYMISTONE_JTAGSERIAL_PID	0x0713
+
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 2297fb1bcf65..ef2977d3a613 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -518,7 +518,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4505, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ETS1220, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) },
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index e64da74bdcc5..6954de50c0ff 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -21,7 +21,6 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
@@ -52,6 +51,7 @@ static struct usb_driver usb_serial_driver = {
 	.suspend =	usb_serial_suspend,
 	.resume =	usb_serial_resume,
 	.no_dynamic_id = 	1,
+	.supports_autosuspend =	1,
 };
 
 /* There is no MODULE_DEVICE_TABLE for usbserial.c.  Instead
@@ -1344,6 +1344,8 @@ int usb_serial_register(struct usb_serial_driver *driver)
 		return -ENODEV;
 
 	fixup_generic(driver);
+	if (driver->usb_driver)
+		driver->usb_driver->supports_autosuspend = 1;
 
 	if (!driver->description)
 		driver->description = driver->driver.name;
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index a688b1e686ea..689ee1fb702a 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -285,7 +285,7 @@ static int slave_configure(struct scsi_device *sdev)
 
 /* queue a command */
 /* This is always called with scsi_lock(host) held */
-static int queuecommand(struct scsi_cmnd *srb,
+static int queuecommand_lck(struct scsi_cmnd *srb,
 			void (*done)(struct scsi_cmnd *))
 {
 	struct us_data *us = host_to_us(srb->device->host);
@@ -315,6 +315,8 @@ static int queuecommand(struct scsi_cmnd *srb,
 	return 0;
 }
 
+static DEF_SCSI_QCMD(queuecommand)
+
 /***********************************************************************
  * Error handling functions
  ***********************************************************************/
diff --git a/drivers/usb/storage/sierra_ms.c b/drivers/usb/storage/sierra_ms.c
index 57fc2f532cab..ceba512f84d0 100644
--- a/drivers/usb/storage/sierra_ms.c
+++ b/drivers/usb/storage/sierra_ms.c
@@ -121,7 +121,7 @@ static ssize_t show_truinst(struct device *dev, struct device_attribute *attr,
 	}
 	return result;
 }
-static DEVICE_ATTR(truinst, S_IWUGO | S_IRUGO, show_truinst, NULL);
+static DEVICE_ATTR(truinst, S_IRUGO, show_truinst, NULL);
 
 int sierra_ms_init(struct us_data *us)
 {
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 2054b1e25a65..339fac3949df 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -331,10 +331,7 @@ static struct urb *uas_alloc_cmd_urb(struct uas_dev_info *devinfo, gfp_t gfp,
 
 	iu->iu_id = IU_ID_COMMAND;
 	iu->tag = cpu_to_be16(stream_id);
-	if (sdev->ordered_tags && (cmnd->request->cmd_flags & REQ_HARDBARRIER))
-		iu->prio_attr = UAS_ORDERED_TAG;
-	else
-		iu->prio_attr = UAS_SIMPLE_TAG;
+	iu->prio_attr = UAS_SIMPLE_TAG;
 	iu->len = len;
 	int_to_scsilun(sdev->lun, &iu->lun);
 	memcpy(iu->cdb, cmnd->cmnd, cmnd->cmd_len);
@@ -433,7 +430,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 	return 0;
 }
 
-static int uas_queuecommand(struct scsi_cmnd *cmnd,
+static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 					void (*done)(struct scsi_cmnd *))
 {
 	struct scsi_device *sdev = cmnd->device;
@@ -491,6 +488,8 @@ static int uas_queuecommand(struct scsi_cmnd *cmnd,
 	return 0;
 }
 
+static DEF_SCSI_QCMD(uas_queuecommand)
+
 static int uas_eh_abort_handler(struct scsi_cmnd *cmnd)
 {
 	struct scsi_device *sdev = cmnd->device;
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 6ccdd3dd5259..fcc1e32ce256 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -481,6 +481,13 @@ UNUSUAL_DEV(  0x04e8, 0x507c, 0x0220, 0x0220,
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_MAX_SECTORS_64),
 
+/* Reported by Vitaly Kuznetsov <vitty@altlinux.ru> */
+UNUSUAL_DEV(  0x04e8, 0x5122, 0x0000, 0x9999,
+		"Samsung",
+		"YP-CP3",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_MAX_SECTORS_64 | US_FL_BULK_IGNORE_TAG),
+
 /* Entry and supporting patch by Theodore Kilgore <kilgota@auburn.edu>.
  * Device uses standards-violating 32-byte Bulk Command Block Wrappers and
  * reports itself as "Proprietary SCSI Bulk." Cf. device entry 0x084d:0x0011.