Merge branches 'clockevents/4.4-fixes' and 'clockevents/4.5-fixes' of http://git.linaro.org/people/daniel.lezcano/linux into timers/urgent

Pull in fixes from Daniel Lezcano:

 - Fix the vt8500 timer leading to a system lock up when dealing with too
   small delta (Roman Volkov)

 - Select the CLKSRC_MMIO when the fsl_ftm_timer is enabled with COMPILE_TEST
   (Daniel Lezcano)

 - Prevent to compile timers using the 'iomem' API when the architecture has
   not HAS_IOMEM set (Richard Weinberger)

28 files changed, 215 insertions, 72 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b30e7423549b..26ca4f910cb0 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1838,6 +1838,11 @@ static const struct usb_device_id acm_ids[] = {
         },
 #endif
 
+        /* Exclude Infineon Flash Loader utility */
+        { USB_DEVICE(0x058b, 0x0041),
+        .driver_info = IGNORE_DEVICE,
+        },
+
         /* control interfaces without any protocol set */
         { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
                 USB_CDC_PROTO_NONE) },
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 7caff020106e..5050760f5e17 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -115,7 +115,8 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
                    USB_SS_MULT(desc->bmAttributes) > 3) {
                 dev_warn(ddev, "Isoc endpoint has Mult of %d in "
                                 "config %d interface %d altsetting %d ep %d: "
-                                "setting to 3\n", desc->bmAttributes + 1,
+                                "setting to 3\n",
+                                USB_SS_MULT(desc->bmAttributes),
                                 cfgno, inum, asnum, ep->desc.bEndpointAddress);
                 ep->ss_ep_comp.bmAttributes = 2;
         }
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index bdeadc112d29..ddbf32d599cb 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -124,6 +124,10 @@ struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev)
 
 int usb_device_supports_lpm(struct usb_device *udev)
 {
+        /* Some devices have trouble with LPM */
+        if (udev->quirks & USB_QUIRK_NO_LPM)
+                return 0;
+
         /* USB 2.1 (and greater) devices indicate LPM support through
          * their USB 2.0 Extended Capabilities BOS descriptor.
          */
@@ -1031,10 +1035,20 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
         unsigned delay;
 
         /* Continue a partial initialization */
-        if (type == HUB_INIT2)
-                goto init2;
-        if (type == HUB_INIT3)
+        if (type == HUB_INIT2 || type == HUB_INIT3) {
+                device_lock(hub->intfdev);
+
+                /* Was the hub disconnected while we were waiting? */
+                if (hub->disconnected) {
+                        device_unlock(hub->intfdev);
+                        kref_put(&hub->kref, hub_release);
+                        return;
+                }
+                if (type == HUB_INIT2)
+                        goto init2;
                 goto init3;
+        }
+        kref_get(&hub->kref);
 
         /* The superspeed hub except for root hub has to use Hub Depth
          * value as an offset into the route string to locate the bits
@@ -1232,6 +1246,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
                         queue_delayed_work(system_power_efficient_wq,
                                         &hub->init_work,
                                         msecs_to_jiffies(delay));
+                        device_unlock(hub->intfdev);
                         return;         /* Continues at init3: below */
                 } else {
                         msleep(delay);
@@ -1253,6 +1268,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
         /* Allow autosuspend if it was suppressed */
         if (type <= HUB_INIT3)
                 usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
+
+        if (type == HUB_INIT2 || type == HUB_INIT3)
+                device_unlock(hub->intfdev);
+
+        kref_put(&hub->kref, hub_release);
 }
 
 /* Implement the continuations for the delays above */
@@ -4512,6 +4532,8 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
                 goto fail;
         }
 
+        usb_detect_quirks(udev);
+
         if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) {
                 retval = usb_get_bos_descriptor(udev);
                 if (!retval) {
@@ -4710,7 +4732,6 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
                 if (status < 0)
                         goto loop;
 
-                usb_detect_quirks(udev);
                 if (udev->quirks & USB_QUIRK_DELAY_INIT)
                         msleep(1000);
 
@@ -5326,9 +5347,6 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
         if (udev->usb2_hw_lpm_enabled == 1)
                 usb_set_usb2_hardware_lpm(udev, 0);
 
-        bos = udev->bos;
-        udev->bos = NULL;
-
         /* Disable LPM and LTM while we reset the device and reinstall the alt
          * settings.  Device-initiated LPM settings, and system exit latency
          * settings are cleared when the device is reset, so we have to set
@@ -5337,15 +5355,18 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
         ret = usb_unlocked_disable_lpm(udev);
         if (ret) {
                 dev_err(&udev->dev, "%s Failed to disable LPM\n.", __func__);
-                goto re_enumerate;
+                goto re_enumerate_no_bos;
         }
         ret = usb_disable_ltm(udev);
         if (ret) {
                 dev_err(&udev->dev, "%s Failed to disable LTM\n.",
                                 __func__);
-                goto re_enumerate;
+                goto re_enumerate_no_bos;
         }
 
+        bos = udev->bos;
+        udev->bos = NULL;
+
         for (i = 0; i < SET_CONFIG_TRIES; ++i) {
 
                 /* ep0 maxpacket size may change; let the HCD know about it.
@@ -5442,10 +5463,11 @@ done:
         return 0;
 
 re_enumerate:
-        /* LPM state doesn't matter when we're about to destroy the device. */
-        hub_port_logical_disconnect(parent_hub, port1);
         usb_release_bos_descriptor(udev);
         udev->bos = bos;
+re_enumerate_no_bos:
+        /* LPM state doesn't matter when we're about to destroy the device. */
+        hub_port_logical_disconnect(parent_hub, port1);
         return -ENODEV;
 }
 
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 210618319f10..5487fe308f01 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -206,7 +206,7 @@ static int link_peers(struct usb_port *left, struct usb_port *right)
                 else
                         method = "default";
 
-                pr_warn("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",
+                pr_debug("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",
                         dev_name(&left->dev), dev_name(&right->dev), method,
                         dev_name(&left->dev),
                         lpeer ? dev_name(&lpeer->dev) : "none",
@@ -265,7 +265,7 @@ static void link_peers_report(struct usb_port *left, struct usb_port *right)
         if (rc == 0) {
                 dev_dbg(&left->dev, "peered to %s\n", dev_name(&right->dev));
         } else {
-                dev_warn(&left->dev, "failed to peer to %s (%d)\n",
+                dev_dbg(&left->dev, "failed to peer to %s (%d)\n",
                                 dev_name(&right->dev), rc);
                 pr_warn_once("usb: port power management may be unreliable\n");
                 usb_port_block_power_off = 1;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f5a381945db2..6dc810bce295 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -125,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = {
         { USB_DEVICE(0x04f3, 0x016f), .driver_info =
                         USB_QUIRK_DEVICE_QUALIFIER },
 
+        { USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+                        USB_QUIRK_DEVICE_QUALIFIER },
+
         /* Roland SC-8820 */
         { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
@@ -199,6 +202,12 @@ static const struct usb_device_id usb_quirk_list[] = {
         { USB_DEVICE(0x1a0a, 0x0200), .driver_info =
                         USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+        /* Blackmagic Design Intensity Shuttle */
+        { USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
+
+        /* Blackmagic Design UltraStudio SDI */
+        { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
+
         { }  /* terminating entry must be last */
 };
 
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index e61d773cf65e..39c1cbf0e75d 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -125,9 +125,11 @@ static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
         if (ret)
                 return ret;
 
-        ret = clk_prepare_enable(hsotg->clk);
-        if (ret)
-                return ret;
+        if (hsotg->clk) {
+                ret = clk_prepare_enable(hsotg->clk);
+                if (ret)
+                        return ret;
+        }
 
         if (hsotg->uphy)
                 ret = usb_phy_init(hsotg->uphy);
@@ -175,7 +177,8 @@ static int __dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg)
         if (ret)
                 return ret;
 
-        clk_disable_unprepare(hsotg->clk);
+        if (hsotg->clk)
+                clk_disable_unprepare(hsotg->clk);
 
         ret = regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),
                                      hsotg->supplies);
@@ -212,14 +215,41 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)
          */
         hsotg->phy = devm_phy_get(hsotg->dev, "usb2-phy");
         if (IS_ERR(hsotg->phy)) {
-                hsotg->phy = NULL;
+                ret = PTR_ERR(hsotg->phy);
+                switch (ret) {
+                case -ENODEV:
+                case -ENOSYS:
+                        hsotg->phy = NULL;
+                        break;
+                case -EPROBE_DEFER:
+                        return ret;
+                default:
+                        dev_err(hsotg->dev, "error getting phy %d\n", ret);
+                        return ret;
+                }
+        }
+
+        if (!hsotg->phy) {
                 hsotg->uphy = devm_usb_get_phy(hsotg->dev, USB_PHY_TYPE_USB2);
-                if (IS_ERR(hsotg->uphy))
-                        hsotg->uphy = NULL;
-                else
-                        hsotg->plat = dev_get_platdata(hsotg->dev);
+                if (IS_ERR(hsotg->uphy)) {
+                        ret = PTR_ERR(hsotg->uphy);
+                        switch (ret) {
+                        case -ENODEV:
+                        case -ENXIO:
+                                hsotg->uphy = NULL;
+                                break;
+                        case -EPROBE_DEFER:
+                                return ret;
+                        default:
+                                dev_err(hsotg->dev, "error getting usb phy %d\n",
+                                        ret);
+                                return ret;
+                        }
+                }
         }
 
+        hsotg->plat = dev_get_platdata(hsotg->dev);
+
         if (hsotg->phy) {
                 /*
                  * If using the generic PHY framework, check if the PHY bus
@@ -229,11 +259,6 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)
                         hsotg->phyif = GUSBCFG_PHYIF8;
         }
 
-        if (!hsotg->phy && !hsotg->uphy && !hsotg->plat) {
-                dev_err(hsotg->dev, "no platform data or transceiver defined\n");
-                return -EPROBE_DEFER;
-        }
-
         /* Clock */
         hsotg->clk = devm_clk_get(hsotg->dev, "otg");
         if (IS_ERR(hsotg->clk)) {
@@ -342,20 +367,6 @@ static int dwc2_driver_probe(struct platform_device *dev)
         if (retval)
                 return retval;
 
-        irq = platform_get_irq(dev, 0);
-        if (irq < 0) {
-                dev_err(&dev->dev, "missing IRQ resource\n");
-                return irq;
-        }
-
-        dev_dbg(hsotg->dev, "registering common handler for irq%d\n",
-                irq);
-        retval = devm_request_irq(hsotg->dev, irq,
-                                  dwc2_handle_common_intr, IRQF_SHARED,
-                                  dev_name(hsotg->dev), hsotg);
-        if (retval)
-                return retval;
-
         res = platform_get_resource(dev, IORESOURCE_MEM, 0);
         hsotg->regs = devm_ioremap_resource(&dev->dev, res);
         if (IS_ERR(hsotg->regs))
@@ -390,6 +401,20 @@ static int dwc2_driver_probe(struct platform_device *dev)
 
         dwc2_set_all_params(hsotg->core_params, -1);
 
+        irq = platform_get_irq(dev, 0);
+        if (irq < 0) {
+                dev_err(&dev->dev, "missing IRQ resource\n");
+                return irq;
+        }
+
+        dev_dbg(hsotg->dev, "registering common handler for irq%d\n",
+                irq);
+        retval = devm_request_irq(hsotg->dev, irq,
+                                  dwc2_handle_common_intr, IRQF_SHARED,
+                                  dev_name(hsotg->dev), hsotg);
+        if (retval)
+                return retval;
+
         retval = dwc2_lowlevel_hw_enable(hsotg);
         if (retval)
                 return retval;
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index e24a01cc98df..a58376fd65fe 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1078,6 +1078,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
          * little bit faster.
          */
         if (!usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
+                        !usb_endpoint_xfer_int(dep->endpoint.desc) &&
                         !(dep->flags & DWC3_EP_BUSY)) {
                 ret = __dwc3_gadget_kick_transfer(dep, 0, true);
                 goto out;
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index adc6d52efa46..cf43e9e18368 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -423,7 +423,7 @@ static ssize_t __ffs_ep0_read_events(struct ffs_data *ffs, char __user *buf,
         spin_unlock_irq(&ffs->ev.waitq.lock);
         mutex_unlock(&ffs->mutex);
 
-        return unlikely(__copy_to_user(buf, events, size)) ? -EFAULT : size;
+        return unlikely(copy_to_user(buf, events, size)) ? -EFAULT : size;
 }
 
 static ssize_t ffs_ep0_read(struct file *file, char __user *buf,
@@ -513,7 +513,7 @@ static ssize_t ffs_ep0_read(struct file *file, char __user *buf,
 
                 /* unlocks spinlock */
                 ret = __ffs_ep0_queue_wait(ffs, data, len);
-                if (likely(ret > 0) && unlikely(__copy_to_user(buf, data, len)))
+                if (likely(ret > 0) && unlikely(copy_to_user(buf, data, len)))
                         ret = -EFAULT;
                 goto done_mutex;
 
@@ -3493,7 +3493,7 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len)
         if (unlikely(!data))
                 return ERR_PTR(-ENOMEM);
 
-        if (unlikely(__copy_from_user(data, buf, len))) {
+        if (unlikely(copy_from_user(data, buf, len))) {
                 kfree(data);
                 return ERR_PTR(-EFAULT);
         }
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index 42acb45e1ab4..898a570319f1 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -370,6 +370,7 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
                 if (err) {
                         ERROR(midi, "%s queue req: %d\n",
                                     midi->out_ep->name, err);
+                        free_ep_req(midi->out_ep, req);
                 }
         }
 
@@ -545,7 +546,7 @@ static void f_midi_transmit(struct f_midi *midi, struct usb_request *req)
                 }
         }
 
-        if (req->length > 0) {
+        if (req->length > 0 && ep->enabled) {
                 int err;
 
                 err = usb_ep_queue(ep, req, GFP_ATOMIC);
diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c
index 289ebca316d3..ad8c9b05572d 100644
--- a/drivers/usb/gadget/function/uvc_configfs.c
+++ b/drivers/usb/gadget/function/uvc_configfs.c
@@ -20,7 +20,7 @@
 #define UVC_ATTR(prefix, cname, aname) \
 static struct configfs_attribute prefix##attr_##cname = { \
         .ca_name        = __stringify(aname),                           \
-        .ca_mode        = S_IRUGO,                                      \
+        .ca_mode        = S_IRUGO | S_IWUGO,                            \
         .ca_owner       = THIS_MODULE,                                  \
         .show           = prefix##cname##_show,                         \
         .store          = prefix##cname##_store,                        \
diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c
index 670ac0b12f00..001a3b74a993 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.c
+++ b/drivers/usb/gadget/udc/pxa27x_udc.c
@@ -2536,6 +2536,9 @@ static int pxa_udc_suspend(struct platform_device *_dev, pm_message_t state)
         udc->pullup_resume = udc->pullup_on;
         dplus_pullup(udc, 0);
 
+        if (udc->driver)
+                udc->driver->disconnect(&udc->gadget);
+
         return 0;
 }
 
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 342ffd140122..8c6e15bd6ff0 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -473,6 +473,8 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
         if (!pdata)
                 return -ENOMEM;
 
+        pdev->dev.platform_data = pdata;
+
         if (!of_property_read_u32(np, "num-ports", &ports))
                 pdata->ports = ports;
 
@@ -483,6 +485,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
                  */
                 if (i >= pdata->ports) {
                         pdata->vbus_pin[i] = -EINVAL;
+                        pdata->overcurrent_pin[i] = -EINVAL;
                         continue;
                 }
 
@@ -513,10 +516,8 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
         }
 
         at91_for_each_port(i) {
-                if (i >= pdata->ports) {
-                        pdata->overcurrent_pin[i] = -EINVAL;
-                        continue;
-                }
+                if (i >= pdata->ports)
+                        break;
 
                 pdata->overcurrent_pin[i] =
                         of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags);
@@ -552,8 +553,6 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
                 }
         }
 
-        pdev->dev.platform_data = pdata;
-
         device_init_wakeup(&pdev->dev, 1);
         return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev);
 }
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index dc31c425ce01..9f1c0538b211 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -377,6 +377,10 @@ static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_f
         if (std->pl_virt == NULL)
                 return -ENOMEM;
         std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE);
+        if (dma_mapping_error(whc->wusbhc.dev, std->dma_addr)) {
+                kfree(std->pl_virt);
+                return -EFAULT;
+        }
 
         for (p = 0; p < std->num_pointers; p++) {
                 std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr);
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 0230965fb78c..f980c239eded 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -733,8 +733,30 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
                 if ((raw_port_status & PORT_RESET) ||
                                 !(raw_port_status & PORT_PE))
                         return 0xffffffff;
-                if (time_after_eq(jiffies,
-                                        bus_state->resume_done[wIndex])) {
+                /* did port event handler already start resume timing? */
+                if (!bus_state->resume_done[wIndex]) {
+                        /* If not, maybe we are in a host initated resume? */
+                        if (test_bit(wIndex, &bus_state->resuming_ports)) {
+                                /* Host initated resume doesn't time the resume
+                                 * signalling using resume_done[].
+                                 * It manually sets RESUME state, sleeps 20ms
+                                 * and sets U0 state. This should probably be
+                                 * changed, but not right now.
+                                 */
+                        } else {
+                                /* port resume was discovered now and here,
+                                 * start resume timing
+                                 */
+                                unsigned long timeout = jiffies +
+                                        msecs_to_jiffies(USB_RESUME_TIMEOUT);
+
+                                set_bit(wIndex, &bus_state->resuming_ports);
+                                bus_state->resume_done[wIndex] = timeout;
+                                mod_timer(&hcd->rh_timer, timeout);
+                        }
+                /* Has resume been signalled for USB_RESUME_TIME yet? */
+                } else if (time_after_eq(jiffies,
+                                         bus_state->resume_done[wIndex])) {
                         int time_left;
 
                         xhci_dbg(xhci, "Resume USB2 port %d\n",
@@ -775,13 +797,26 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
                 } else {
                         /*
                          * The resume has been signaling for less than
-                         * 20ms. Report the port status as SUSPEND,
-                         * let the usbcore check port status again
-                         * and clear resume signaling later.
+                         * USB_RESUME_TIME. Report the port status as SUSPEND,
+                         * let the usbcore check port status again and clear
+                         * resume signaling later.
                          */
                         status |= USB_PORT_STAT_SUSPEND;
                 }
         }
+        /*
+         * Clear stale usb2 resume signalling variables in case port changed
+         * state during resume signalling. For example on error
+         */
+        if ((bus_state->resume_done[wIndex] ||
+             test_bit(wIndex, &bus_state->resuming_ports)) &&
+            (raw_port_status & PORT_PLS_MASK) != XDEV_U3 &&
+            (raw_port_status & PORT_PLS_MASK) != XDEV_RESUME) {
+                bus_state->resume_done[wIndex] = 0;
+                clear_bit(wIndex, &bus_state->resuming_ports);
+        }
+
+
         if ((raw_port_status & PORT_PLS_MASK) == XDEV_U0 &&
             (raw_port_status & PORT_POWER)) {
                 if (bus_state->suspended_ports & (1 << wIndex)) {
@@ -1115,6 +1150,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                                 if ((temp & PORT_PE) == 0)
                                         goto error;
 
+                                set_bit(wIndex, &bus_state->resuming_ports);
                                 xhci_set_link_state(xhci, port_array, wIndex,
                                                         XDEV_RESUME);
                                 spin_unlock_irqrestore(&xhci->lock, flags);
@@ -1122,6 +1158,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                                 spin_lock_irqsave(&xhci->lock, flags);
                                 xhci_set_link_state(xhci, port_array, wIndex,
                                                         XDEV_U0);
+                                clear_bit(wIndex, &bus_state->resuming_ports);
                         }
                         bus_state->port_c_suspend |= 1 << wIndex;
 
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 17f6897acde2..c62109091d12 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -188,10 +188,14 @@ static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev)
                 0xb7, 0x0c, 0x34, 0xac, 0x01, 0xe9, 0xbf, 0x45,
                 0xb7, 0xe6, 0x2b, 0x34, 0xec, 0x93, 0x1e, 0x23,
         };
-        acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), intel_dsm_uuid, 3, 1, NULL);
+        union acpi_object *obj;
+
+        obj = acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), intel_dsm_uuid, 3, 1,
+                                NULL);
+        ACPI_FREE(obj);
 }
 #else
-        static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { }
+static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { }
 #endif /* CONFIG_ACPI */
 
 /* called during probe() after chip reset completes */
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 6c5e8133cf87..eeaa6c6bd540 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1583,7 +1583,8 @@ static void handle_port_status(struct xhci_hcd *xhci,
                          */
                         bogus_port_status = true;
                         goto cleanup;
-                } else {
+                } else if (!test_bit(faked_port_index,
+                                     &bus_state->resuming_ports)) {
                         xhci_dbg(xhci, "resume HS port %d\n", port_id);
                         bus_state->resume_done[faked_port_index] = jiffies +
                                 msecs_to_jiffies(USB_RESUME_TIMEOUT);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index dfa44d3e8eee..3f912705dcef 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4778,8 +4778,16 @@ int xhci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hdev,
         ctrl_ctx->add_flags |= cpu_to_le32(SLOT_FLAG);
         slot_ctx = xhci_get_slot_ctx(xhci, config_cmd->in_ctx);
         slot_ctx->dev_info |= cpu_to_le32(DEV_HUB);
+        /*
+         * refer to section 6.2.2: MTT should be 0 for full speed hub,
+         * but it may be already set to 1 when setup an xHCI virtual
+         * device, so clear it anyway.
+         */
         if (tt->multi)
                 slot_ctx->dev_info |= cpu_to_le32(DEV_MTT);
+        else if (hdev->speed == USB_SPEED_FULL)
+                slot_ctx->dev_info &= cpu_to_le32(~DEV_MTT);
+
         if (xhci->hci_version > 0x95) {
                 xhci_dbg(xhci, "xHCI version %x needs hub "
                                 "TT think time and number of ports\n",
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 1f2037bbeb0d..45c83baf675d 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -159,7 +159,7 @@ config USB_TI_CPPI_DMA
 
 config USB_TI_CPPI41_DMA
         bool 'TI CPPI 4.1 (AM335x)'
-        depends on ARCH_OMAP
+        depends on ARCH_OMAP && DMADEVICES
         select TI_CPPI41
 
 config USB_TUSB_OMAP_DMA
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 18cfc0a361cb..ee9ff7028b92 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2017,7 +2017,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
         /* We need musb_read/write functions initialized for PM */
         pm_runtime_use_autosuspend(musb->controller);
         pm_runtime_set_autosuspend_delay(musb->controller, 200);
-        pm_runtime_irq_safe(musb->controller);
         pm_runtime_enable(musb->controller);
 
         /* The musb_platform_init() call:
@@ -2095,6 +2094,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 #ifndef CONFIG_MUSB_PIO_ONLY
         if (!musb->ops->dma_init || !musb->ops->dma_exit) {
                 dev_err(dev, "DMA controller not set\n");
+                status = -ENODEV;
                 goto fail2;
         }
         musb_dma_controller_create = musb->ops->dma_init;
@@ -2218,6 +2218,12 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 
         pm_runtime_put(musb->controller);
 
+        /*
+         * For why this is currently needed, see commit 3e43a0725637
+         * ("usb: musb: core: add pm_runtime_irq_safe()")
+         */
+        pm_runtime_irq_safe(musb->controller);
+
         return 0;
 
 fail5:
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 80eb991c2506..0d19a6d61a71 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -1506,7 +1506,6 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
 {
         struct msm_otg_platform_data *pdata;
         struct extcon_dev *ext_id, *ext_vbus;
-        const struct of_device_id *id;
         struct device_node *node = pdev->dev.of_node;
         struct property *prop;
         int len, ret, words;
@@ -1518,8 +1517,9 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
 
         motg->pdata = pdata;
 
-        id = of_match_device(msm_otg_dt_match, &pdev->dev);
-        pdata->phy_type = (enum msm_usb_phy_type) id->data;
+        pdata->phy_type = (enum msm_usb_phy_type)of_device_get_match_data(&pdev->dev);
+        if (!pdata->phy_type)
+                return 1;
 
         motg->link_rst = devm_reset_control_get(&pdev->dev, "link");
         if (IS_ERR(motg->link_rst))
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index b7536af777ab..c2936dc48ca7 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -143,12 +143,17 @@ static const struct mxs_phy_data imx6sx_phy_data = {
         .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS,
 };
 
+static const struct mxs_phy_data imx6ul_phy_data = {
+        .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS,
+};
+
 static const struct of_device_id mxs_phy_dt_ids[] = {
         { .compatible = "fsl,imx6sx-usbphy", .data = &imx6sx_phy_data, },
         { .compatible = "fsl,imx6sl-usbphy", .data = &imx6sl_phy_data, },
         { .compatible = "fsl,imx6q-usbphy", .data = &imx6q_phy_data, },
         { .compatible = "fsl,imx23-usbphy", .data = &imx23_phy_data, },
         { .compatible = "fsl,vf610-usbphy", .data = &vf610_phy_data, },
+        { .compatible = "fsl,imx6ul-usbphy", .data = &imx6ul_phy_data, },
         { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, mxs_phy_dt_ids);
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index de4f97d84a82..8f7a78e70975 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -131,7 +131,8 @@ static void __usbhsg_queue_pop(struct usbhsg_uep *uep,
         struct device *dev = usbhsg_gpriv_to_dev(gpriv);
         struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
 
-        dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
+        if (pipe)
+                dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
 
         ureq->req.status = status;
         spin_unlock(usbhs_priv_to_lock(priv));
@@ -685,7 +686,13 @@ static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
         struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
         struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
 
-        usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
+        if (pipe)
+                usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
+
+        /*
+         * To dequeue a request, this driver should call the usbhsg_queue_pop()
+         * even if the pipe is NULL.
+         */
         usbhsg_queue_pop(uep, ureq, -ECONNRESET);
 
         return 0;
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index eac7ccaa3c85..7d4f51a32e66 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -132,7 +132,6 @@ static const struct usb_device_id id_table[] = {
         { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
         { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
         { USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
-        { USB_DEVICE(0x10C4, 0xEA80) }, /* Silicon Labs factory default */
         { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
         { USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
         { USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index f51a5d52c0ed..ec1b8f2c1183 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -531,7 +531,8 @@ static int ipaq_open(struct tty_struct *tty,
          * through. Since this has a reasonably high failure rate, we retry
          * several times.
          */
-        while (retries--) {
+        while (retries) {
+                retries--;
                 result = usb_control_msg(serial->dev,
                                 usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21,
                                 0x1, 0, NULL, 0, 100);
diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
index 3658662898fc..a204782ae530 100644
--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -53,6 +53,7 @@ DEVICE(funsoft, FUNSOFT_IDS);
 
 /* Infineon Flashloader driver */
 #define FLASHLOADER_IDS()               \
+        { USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \
         { USB_DEVICE(0x8087, 0x0716) }
 DEVICE(flashloader, FLASHLOADER_IDS);
 
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index e69151664436..5c66d3f7a6d0 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -796,6 +796,10 @@ static int uas_slave_configure(struct scsi_device *sdev)
         if (devinfo->flags & US_FL_NO_REPORT_OPCODES)
                 sdev->no_report_opcodes = 1;
 
+        /* A few buggy USB-ATA bridges don't understand FUA */
+        if (devinfo->flags & US_FL_BROKEN_FUA)
+                sdev->broken_fua = 1;
+
         scsi_change_queue_depth(sdev, devinfo->qdepth - 2);
         return 0;
 }
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 6b2479123de7..7ffe4209067b 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1987,7 +1987,7 @@ UNUSUAL_DEV(  0x14cd, 0x6600, 0x0201, 0x0201,
                 US_FL_IGNORE_RESIDUE ),
 
 /* Reported by Michael Büsch <m@bues.ch> */
-UNUSUAL_DEV(  0x152d, 0x0567, 0x0114, 0x0114,
+UNUSUAL_DEV(  0x152d, 0x0567, 0x0114, 0x0116,
                 "JMicron",
                 "USB to ATA/ATAPI Bridge",
                 USB_SC_DEVICE, USB_PR_DEVICE, NULL,
diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index c85ea530085f..ccc113e83d88 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -132,7 +132,7 @@ UNUSUAL_DEV(0x152d, 0x0567, 0x0000, 0x9999,
                 "JMicron",
                 "JMS567",
                 USB_SC_DEVICE, USB_PR_DEVICE, NULL,
-                US_FL_NO_REPORT_OPCODES),
+                US_FL_BROKEN_FUA | US_FL_NO_REPORT_OPCODES),
 
 /* Reported-by: Hans de Goede <hdegoede@redhat.com> */
 UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x9999,