Merge 3.10-rc3 into tty-next

We want these fixes.

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

68 files changed, 260 insertions, 267 deletions

diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index b7eb86ad6bf2..8a7eb77233b4 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -686,7 +686,8 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
 {
 	int ret, len;
 	__le32 *buf;
-	int offb, offd;
+	int offb;
+	unsigned int offd;
 	const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
 	int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;
 
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 608a2aeb400c..b2df442eb3e5 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -20,7 +20,7 @@ config USB_CHIPIDEA_UDC
 config USB_CHIPIDEA_HOST
 	bool "ChipIdea host controller"
 	depends on USB=y || USB=USB_CHIPIDEA
-	depends on USB_EHCI_HCD
+	depends on USB_EHCI_HCD=y
 	select USB_EHCI_ROOT_HUB_TT
 	help
 	  Say Y here to enable host controller functionality of the
diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
index 8faec9dbbb84..73f9d5f15adb 100644
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ b/drivers/usb/chipidea/ci13xxx_imx.c
@@ -173,17 +173,10 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
 
 	ci13xxx_imx_platdata.phy = data->phy;
 
-	if (!pdev->dev.dma_mask) {
-		pdev->dev.dma_mask = devm_kzalloc(&pdev->dev,
-				      sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
-		if (!pdev->dev.dma_mask) {
-			ret = -ENOMEM;
-			dev_err(&pdev->dev, "Failed to alloc dma_mask!\n");
-			goto err;
-		}
-		*pdev->dev.dma_mask = DMA_BIT_MASK(32);
-		dma_set_coherent_mask(&pdev->dev, *pdev->dev.dma_mask);
-	}
+	if (!pdev->dev.dma_mask)
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	if (usbmisc_ops && usbmisc_ops->init) {
 		ret = usbmisc_ops->init(&pdev->dev);
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 450107e5f657..49b098bedf9b 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -370,11 +370,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "missing resource\n");
-		return -ENODEV;
-	}
-
 	base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 8772b3659296..db535b0aa172 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -51,7 +51,7 @@ config USB_DYNAMIC_MINORS
 
 config USB_OTG
 	bool "OTG support"
-	depends on USB_SUSPEND
+	depends on PM_RUNTIME
 	default n
 	help
 	  The most notable feature of USB OTG is support for a
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index ab5638d9c707..a63598895077 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -88,6 +88,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Edirol SD-20 */
 	{ USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Alcor Micro Corp. Hub */
+	{ USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index ea5ee9c21c35..757aa18027d0 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -19,21 +19,21 @@ choice
 
 config USB_DWC3_HOST
 	bool "Host only mode"
-	depends on USB
+	depends on USB=y || USB=USB_DWC3
 	help
 	  Select this when you want to use DWC3 in host mode only,
 	  thereby the gadget feature will be regressed.
 
 config USB_DWC3_GADGET
 	bool "Gadget only mode"
-	depends on USB_GADGET
+	depends on USB_GADGET=y || USB_GADGET=USB_DWC3
 	help
 	  Select this when you want to use DWC3 in gadget mode only,
 	  thereby the host feature will be regressed.
 
 config USB_DWC3_DUAL_ROLE
 	bool "Dual Role mode"
-	depends on (USB && USB_GADGET)
+	depends on ((USB=y || USB=USB_DWC3) && (USB_GADGET=y || USB_GADGET=USB_DWC3))
 	help
 	  This is the default mode of working of DWC3 controller where
 	  both host and gadget features are enabled.
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index a8afe6e26621..929e7dd6e58b 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -95,8 +95,6 @@ static int dwc3_exynos_remove_child(struct device *dev, void *unused)
 	return 0;
 }
 
-static u64 dwc3_exynos_dma_mask = DMA_BIT_MASK(32);
-
 static int dwc3_exynos_probe(struct platform_device *pdev)
 {
 	struct dwc3_exynos	*exynos;
@@ -118,7 +116,9 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 	 * Once we move to full device tree support this will vanish off.
 	 */
 	if (!dev->dma_mask)
-		dev->dma_mask = &dwc3_exynos_dma_mask;
+		dev->dma_mask = &dev->coherent_dma_mask;
+	if (!dev->coherent_dma_mask)
+		dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
 	platform_set_drvdata(pdev, exynos);
 
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 83300d94a893..f41aa0d0c414 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -146,7 +146,6 @@ config USB_LPC32XX
 	depends on ARCH_LPC32XX
 	depends on USB_PHY
 	select USB_ISP1301
-	select USB_OTG_UTILS
 	help
 	   This option selects the USB device controller in the LPC32xx SoC.
 
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index f2a970f75bfa..5a5128a226f7 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1992,8 +1992,6 @@ err_map_regs:
 err_get_hclk:
 	clk_put(pclk);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return ret;
 }
 
diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c
index 6e6518264c42..fd24cb4540a4 100644
--- a/drivers/usb/gadget/bcm63xx_udc.c
+++ b/drivers/usb/gadget/bcm63xx_udc.c
@@ -2334,21 +2334,11 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "error finding USBD resource\n");
-		return -ENXIO;
-	}
-
 	udc->usbd_regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(udc->usbd_regs))
 		return PTR_ERR(udc->usbd_regs);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res) {
-		dev_err(dev, "error finding IUDMA resource\n");
-		return -ENXIO;
-	}
-
 	udc->iudma_regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(udc->iudma_regs))
 		return PTR_ERR(udc->iudma_regs);
@@ -2420,7 +2410,6 @@ static int bcm63xx_udc_remove(struct platform_device *pdev)
 	usb_del_gadget_udc(&udc->gadget);
 	BUG_ON(udc->driver);
 
-	platform_set_drvdata(pdev, NULL);
 	bcm63xx_uninit_udc_hw(udc);
 
 	return 0;
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 3d5cfc9c2c78..80e7f75a56c7 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -821,8 +821,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
 		gi->gstrings[i] = NULL;
 		s = usb_gstrings_attach(&gi->cdev, gi->gstrings,
 				USB_GADGET_FIRST_AVAIL_IDX);
-		if (IS_ERR(s))
+		if (IS_ERR(s)) {
+			ret = PTR_ERR(s);
 			goto err_comp_cleanup;
+		}
 
 		gi->cdev.desc.iManufacturer = s[USB_GADGET_MANUFACTURER_IDX].id;
 		gi->cdev.desc.iProduct = s[USB_GADGET_PRODUCT_IDX].id;
@@ -847,8 +849,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
 			}
 			cfg->gstrings[i] = NULL;
 			s = usb_gstrings_attach(&gi->cdev, cfg->gstrings, 1);
-			if (IS_ERR(s))
+			if (IS_ERR(s)) {
+				ret = PTR_ERR(s);
 				goto err_comp_cleanup;
+			}
 			c->iConfiguration = s[0].id;
 		}
 
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index a792e322f4f1..c588e8e486e5 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -1001,7 +1001,6 @@ static int dummy_udc_remove(struct platform_device *pdev)
 	struct dummy	*dum = platform_get_drvdata(pdev);
 
 	usb_del_gadget_udc(&dum->gadget);
-	platform_set_drvdata(pdev, NULL);
 	device_remove_file(&dum->gadget.dev, &dev_attr_function);
 	return 0;
 }
@@ -2661,8 +2660,10 @@ static int __init init(void)
 	}
 	for (i = 0; i < mod_data.num; i++) {
 		dum[i] = kzalloc(sizeof(struct dummy), GFP_KERNEL);
-		if (!dum[i])
+		if (!dum[i]) {
+			retval = -ENOMEM;
 			goto err_add_pdata;
+		}
 		retval = platform_device_add_data(the_hcd_pdev[i], &dum[i],
 				sizeof(void *));
 		if (retval)
diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c
index d893d6929079..abf8a31ae146 100644
--- a/drivers/usb/gadget/f_ecm.c
+++ b/drivers/usb/gadget/f_ecm.c
@@ -816,6 +816,7 @@ ecm_unbind(struct usb_configuration *c, struct usb_function *f)
  * @c: the configuration to support the network link
  * @ethaddr: a buffer in which the ethernet address of the host side
  *	side of the link was recorded
+ * @dev: eth_dev structure
  * Context: single threaded during gadget setup
  *
  * Returns zero on success, else negative errno.
diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c
index 185d6f5e4e4d..7be04b342494 100644
--- a/drivers/usb/gadget/f_subset.c
+++ b/drivers/usb/gadget/f_subset.c
@@ -373,6 +373,7 @@ geth_unbind(struct usb_configuration *c, struct usb_function *f)
  * @c: the configuration to support the network link
  * @ethaddr: a buffer in which the ethernet address of the host side
  *	side of the link was recorded
+ * @dev: eth_dev structure
  * Context: single threaded during gadget setup
  *
  * Returns zero on success, else negative errno.
diff --git a/drivers/usb/gadget/f_uac2.c b/drivers/usb/gadget/f_uac2.c
index c7468b6c07b0..03c1fb686644 100644
--- a/drivers/usb/gadget/f_uac2.c
+++ b/drivers/usb/gadget/f_uac2.c
@@ -456,8 +456,6 @@ static int snd_uac2_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	if (card)
 		return snd_card_free(card);
 
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index cec8871b77f9..b8632d40f8bf 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -1461,8 +1461,10 @@ static int __init fusb300_probe(struct platform_device *pdev)
 
 	fusb300->ep0_req = fusb300_alloc_request(&fusb300->ep[0]->ep,
 				GFP_KERNEL);
-	if (fusb300->ep0_req == NULL)
+	if (fusb300->ep0_req == NULL) {
+		ret = -ENOMEM;
 		goto clean_up3;
+	}
 
 	init_controller(fusb300);
 	ret = usb_add_gadget_udc(&pdev->dev, &fusb300->gadget);
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index b5cebd6b0d7a..9b2d24e4c95f 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1511,8 +1511,6 @@ static int __exit imx_udc_remove(struct platform_device *pdev)
 	if (pdata->exit)
 		pdata->exit(&pdev->dev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 866ef0999247..51cfe72da5bb 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1660,8 +1660,10 @@ static int __init m66592_probe(struct platform_device *pdev)
 	m66592->epaddr2ep[0] = &m66592->ep[0];
 
 	m66592->ep0_req = m66592_alloc_request(&m66592->ep[0].ep, GFP_KERNEL);
-	if (m66592->ep0_req == NULL)
+	if (m66592->ep0_req == NULL) {
+		ret = -ENOMEM;
 		goto clean_up3;
+	}
 	m66592->ep0_req->complete = nop_completion;
 
 	init_controller(m66592);
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index ef47495dec8f..95c531d5aa4f 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -2236,7 +2236,6 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev)
 		dev->transceiver = NULL;
 	}
 
-	platform_set_drvdata(pdev, NULL);
 	the_controller = NULL;
 	return 0;
 }
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 0b742d171843..7ff7d9cf2061 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -1977,8 +1977,10 @@ static int __init r8a66597_probe(struct platform_device *pdev)
 
 	r8a66597->ep0_req = r8a66597_alloc_request(&r8a66597->ep[0].ep,
 							GFP_KERNEL);
-	if (r8a66597->ep0_req == NULL)
+	if (r8a66597->ep0_req == NULL) {
+		ret = -ENOMEM;
 		goto clean_up3;
+	}
 	r8a66597->ep0_req->complete = nop_completion;
 
 	ret = usb_add_gadget_udc(&pdev->dev, &r8a66597->gadget);
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index a3cdc32115d5..af22f24046b2 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -437,7 +437,7 @@ static void s3c_hsotg_unmap_dma(struct s3c_hsotg *hsotg,
 	if (hs_req->req.length == 0)
 		return;
 
-	usb_gadget_unmap_request(&hsotg->gadget, hs_req, hs_ep->dir_in);
+	usb_gadget_unmap_request(&hsotg->gadget, req, hs_ep->dir_in);
 }
 
 /**
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index d0e75e1b3ccb..09c4f70c93c4 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1851,6 +1851,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
 		irq = gpio_to_irq(udc_info->vbus_pin);
 		if (irq < 0) {
 			dev_err(dev, "no irq for gpio vbus pin\n");
+			retval = irq;
 			goto err_gpio_claim;
 		}
 
@@ -1948,8 +1949,6 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
 	iounmap(base_addr);
 	release_mem_region(rsrc_start, rsrc_len);
 
-	platform_set_drvdata(pdev, NULL);
-
 	if (!IS_ERR(udc_clock) && udc_clock != NULL) {
 		clk_disable(udc_clock);
 		clk_put(udc_clock);
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 2cd6262e8b71..0deb9d6cde26 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -284,12 +284,16 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
 	ss_opts->bulk_buflen = gzero_options.bulk_buflen;
 
 	func_ss = usb_get_function(func_inst_ss);
-	if (IS_ERR(func_ss))
+	if (IS_ERR(func_ss)) {
+		status = PTR_ERR(func_ss);
 		goto err_put_func_inst_ss;
+	}
 
 	func_inst_lb = usb_get_function_instance("Loopback");
-	if (IS_ERR(func_inst_lb))
+	if (IS_ERR(func_inst_lb)) {
+		status = PTR_ERR(func_inst_lb);
 		goto err_put_func_ss;
+	}
 
 	lb_opts = container_of(func_inst_lb, struct f_lb_opts, func_inst);
 	lb_opts->bulk_buflen = gzero_options.bulk_buflen;
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index de94f2699063..344d5e2f87d7 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -507,7 +507,7 @@ endif # USB_OHCI_HCD
 
 config USB_UHCI_HCD
 	tristate "UHCI HCD (most Intel and VIA) support"
-	depends on PCI || SPARC_LEON || ARCH_VT8500
+	depends on PCI || USB_UHCI_SUPPORT_NON_PCI_HC
 	---help---
 	  The Universal Host Controller Interface is a standard by Intel for
 	  accessing the USB hardware in the PC (which is also called the USB
@@ -524,26 +524,19 @@ config USB_UHCI_HCD
 
 config USB_UHCI_SUPPORT_NON_PCI_HC
 	bool
-	depends on USB_UHCI_HCD
-	default y if (SPARC_LEON || ARCH_VT8500)
+	default y if (SPARC_LEON || USB_UHCI_PLATFORM)
 
 config USB_UHCI_PLATFORM
-	bool "Generic UHCI Platform Driver support"
-	depends on USB_UHCI_SUPPORT_NON_PCI_HC
+	bool
 	default y if ARCH_VT8500
-	---help---
-	  Enable support for generic UHCI platform devices that require no
-	  additional configuration.
 
 config USB_UHCI_BIG_ENDIAN_MMIO
 	bool
-	depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
-	default y
+	default y if SPARC_LEON
 
 config USB_UHCI_BIG_ENDIAN_DESC
 	bool
-	depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
-	default y
+	default y if SPARC_LEON
 
 config USB_FHCI_HCD
 	tristate "Freescale QE USB Host Controller support"
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 66420097c242..02f4611faa62 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -63,8 +63,6 @@ static void atmel_stop_ehci(struct platform_device *pdev)
 
 /*-------------------------------------------------------------------------*/
 
-static u64 at91_ehci_dma_mask = DMA_BIT_MASK(32);
-
 static int ehci_atmel_drv_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd;
@@ -93,7 +91,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &at91_ehci_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
 	if (!hcd) {
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 312fc10da3c7..246e124e6ac5 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1286,23 +1286,6 @@ MODULE_LICENSE ("GPL");
 #define	PLATFORM_DRIVER		ehci_hcd_sead3_driver
 #endif
 
-#if !IS_ENABLED(CONFIG_USB_EHCI_PCI) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
-	!IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_HCD_OMAP) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_HCD_ORION) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_HCD_SPEAR) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_S5P) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_HCD_AT91) && \
-	!IS_ENABLED(CONFIG_USB_EHCI_MSM) && \
-	!defined(PLATFORM_DRIVER) && \
-	!defined(PS3_SYSTEM_BUS_DRIVER) && \
-	!defined(OF_PLATFORM_DRIVER) && \
-	!defined(XILINX_OF_PLATFORM_DRIVER)
-#error "missing bus glue for ehci-hcd"
-#endif
-
 static int __init ehci_hcd_init(void)
 {
 	int retval = 0;
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 3d1491b5f360..16d7150e8557 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -90,8 +90,6 @@ static const struct ehci_driver_overrides ehci_omap_overrides __initdata = {
 	.extra_priv_size = sizeof(struct omap_hcd),
 };
 
-static u64 omap_ehci_dma_mask = DMA_BIT_MASK(32);
-
 /**
  * ehci_hcd_omap_probe - initialize TI-based HCDs
  *
@@ -146,8 +144,10 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &omap_ehci_dma_mask;
+	if (!dev->dma_mask)
+		dev->dma_mask = &dev->coherent_dma_mask;
+	if (!dev->coherent_dma_mask)
+		dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
 	hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
 			dev_name(dev));
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 54c579485150..efbc588b48c5 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -137,8 +137,6 @@ ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
 	}
 }
 
-static u64 ehci_orion_dma_mask = DMA_BIT_MASK(32);
-
 static int ehci_orion_drv_probe(struct platform_device *pdev)
 {
 	struct orion_ehci_data *pd = pdev->dev.platform_data;
@@ -183,7 +181,9 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
 	 * now. Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &ehci_orion_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	if (!request_mem_region(res->start, resource_size(res),
 				ehci_orion_hc_driver.description)) {
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 635775278c7f..379037f51a2f 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -71,8 +71,6 @@ static void s5p_setup_vbus_gpio(struct platform_device *pdev)
 		dev_err(dev, "can't request ehci vbus gpio %d", gpio);
 }
 
-static u64 ehci_s5p_dma_mask = DMA_BIT_MASK(32);
-
 static int s5p_ehci_probe(struct platform_device *pdev)
 {
 	struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
@@ -90,7 +88,7 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 	 * Once we move to full device tree support this will vanish off.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &ehci_s5p_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
 	if (!pdev->dev.coherent_dma_mask)
 		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
@@ -107,6 +105,7 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 	if (IS_ERR(phy)) {
 		/* Fallback to pdata */
 		if (!pdata) {
+			usb_put_hcd(hcd);
 			dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
 			return -EPROBE_DEFER;
 		} else {
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 61ecfb3d52f5..bd3e5cbc6240 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -58,8 +58,6 @@ static int ehci_spear_drv_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(ehci_spear_pm_ops, ehci_spear_drv_suspend,
 		ehci_spear_drv_resume);
 
-static u64 spear_ehci_dma_mask = DMA_BIT_MASK(32);
-
 static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd ;
@@ -84,7 +82,9 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &spear_ehci_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	usbh_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(usbh_clk)) {
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index e3eddc31ac83..59d111bf44a9 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -637,8 +637,6 @@ static void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
 	writel(val, base + TEGRA_USB_PORTSC1);
 }
 
-static u64 tegra_ehci_dma_mask = DMA_BIT_MASK(32);
-
 static int tegra_ehci_probe(struct platform_device *pdev)
 {
 	struct resource *res;
@@ -661,7 +659,9 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &tegra_ehci_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	setup_vbus_gpio(pdev, pdata);
 
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 125e261f5bfc..2facee53eab1 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1739,7 +1739,7 @@ static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
 	int retval = 1;
 	unsigned long flags;
 
-	/* if !USB_SUSPEND, root hub timers won't get shut down ... */
+	/* if !PM_RUNTIME, root hub timers won't get shut down ... */
 	if (!HC_IS_RUNNING(hcd->state))
 		return 0;
 
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index bbb791bd7617..a13709ee4e5d 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -373,8 +373,10 @@ static int isp1760_plat_probe(struct platform_device *pdev)
 	irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!irq_res) {
 		pr_warning("isp1760: IRQ resource not available\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto cleanup;
 	}
+
 	irqflags |= irq_res->flags & IRQF_TRIGGER_MASK;
 
 	if (priv) {
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index a0cb44f0e724..2ee1496dbc1d 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -504,8 +504,6 @@ static const struct of_device_id at91_ohci_dt_ids[] = {
 
 MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
 
-static u64 at91_ohci_dma_mask = DMA_BIT_MASK(32);
-
 static int ohci_at91_of_init(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -522,7 +520,9 @@ static int ohci_at91_of_init(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &at91_ohci_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 07592c00af26..b0b542c14e31 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -98,8 +98,6 @@ static const struct hc_driver exynos_ohci_hc_driver = {
 	.start_port_reset	= ohci_start_port_reset,
 };
 
-static u64 ohci_exynos_dma_mask = DMA_BIT_MASK(32);
-
 static int exynos_ohci_probe(struct platform_device *pdev)
 {
 	struct exynos4_ohci_platdata *pdata = pdev->dev.platform_data;
@@ -117,7 +115,7 @@ static int exynos_ohci_probe(struct platform_device *pdev)
 	 * Once we move to full device tree support this will vanish off.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &ohci_exynos_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
 	if (!pdev->dev.coherent_dma_mask)
 		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 9e6de9586ae4..fc627fd54116 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -233,14 +233,14 @@ static int ohci_urb_enqueue (
 			urb->start_frame = frame;
 		}
 	} else if (ed->type == PIPE_ISOCHRONOUS) {
-		u16	next = ohci_frame_no(ohci) + 2;
+		u16	next = ohci_frame_no(ohci) + 1;
 		u16	frame = ed->last_iso + ed->interval;
 
 		/* Behind the scheduling threshold? */
 		if (unlikely(tick_before(frame, next))) {
 
 			/* USB_ISO_ASAP: Round up to the first available slot */
-			if (urb->transfer_flags & URB_ISO_ASAP)
+			if (urb->transfer_flags & URB_ISO_ASAP) {
 				frame += (next - frame + ed->interval - 1) &
 						-ed->interval;
 
@@ -248,21 +248,25 @@ static int ohci_urb_enqueue (
 			 * Not ASAP: Use the next slot in the stream.  If
 			 * the entire URB falls before the threshold, fail.
 			 */
-			else if (tick_before(frame + ed->interval *
+			} else {
+				if (tick_before(frame + ed->interval *
 					(urb->number_of_packets - 1), next)) {
-				retval = -EXDEV;
-				usb_hcd_unlink_urb_from_ep(hcd, urb);
-				goto fail;
-			}
+					retval = -EXDEV;
+					usb_hcd_unlink_urb_from_ep(hcd, urb);
+					goto fail;
+				}
 
-			/*
-			 * Some OHCI hardware doesn't handle late TDs
-			 * correctly.  After retiring them it proceeds to
-			 * the next ED instead of the next TD.  Therefore
-			 * we have to omit the late TDs entirely.
-			 */
-			urb_priv->td_cnt = DIV_ROUND_UP(next - frame,
-					ed->interval);
+				/*
+				 * Some OHCI hardware doesn't handle late TDs
+				 * correctly.  After retiring them it proceeds
+				 * to the next ED instead of the next TD.
+				 * Therefore we have to omit the late TDs
+				 * entirely.
+				 */
+				urb_priv->td_cnt = DIV_ROUND_UP(
+						(u16) (next - frame),
+						ed->interval);
+			}
 		}
 		urb->start_frame = frame;
 	}
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index f4988fbe78e7..5d7eb72c5064 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -223,8 +223,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 
 	isp1301_i2c_client = isp1301_get_client(isp1301_node);
 	if (!isp1301_i2c_client) {
-		ret = -EPROBE_DEFER;
-		goto out;
+		return -EPROBE_DEFER;
 	}
 
 	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
@@ -234,7 +233,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 	if (usb_disabled()) {
 		dev_err(&pdev->dev, "USB is disabled\n");
 		ret = -ENODEV;
-		goto out;
+		goto fail_disable;
 	}
 
 	/* Enable AHB slave USB clock, needed for further USB clock control */
@@ -245,19 +244,19 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 	if (IS_ERR(usb_pll_clk)) {
 		dev_err(&pdev->dev, "failed to acquire USB PLL\n");
 		ret = PTR_ERR(usb_pll_clk);
-		goto out1;
+		goto fail_pll;
 	}
 
 	ret = clk_enable(usb_pll_clk);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to start USB PLL\n");
-		goto out2;
+		goto fail_pllen;
 	}
 
 	ret = clk_set_rate(usb_pll_clk, 48000);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to set USB clock rate\n");
-		goto out3;
+		goto fail_rate;
 	}
 
 	/* Enable USB device clock */
@@ -265,13 +264,13 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 	if (IS_ERR(usb_dev_clk)) {
 		dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n");
 		ret = PTR_ERR(usb_dev_clk);
-		goto out4;
+		goto fail_dev;
 	}
 
 	ret = clk_enable(usb_dev_clk);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
-		goto out5;
+		goto fail_deven;
 	}
 
 	/* Enable USB otg clocks */
@@ -279,7 +278,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 	if (IS_ERR(usb_otg_clk)) {
 		dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n");
 		ret = PTR_ERR(usb_otg_clk);
-		goto out6;
+		goto fail_otg;
 	}
 
 	__raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);
@@ -287,7 +286,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 	ret = clk_enable(usb_otg_clk);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
-		goto out7;
+		goto fail_otgen;
 	}
 
 	isp1301_configure();
@@ -296,20 +295,14 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 	if (!hcd) {
 		dev_err(&pdev->dev, "Failed to allocate HC buffer\n");
 		ret = -ENOMEM;
-		goto out8;
+		goto fail_hcd;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get MEM resource\n");
-		ret =  -ENOMEM;
-		goto out8;
-	}
-
 	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(hcd->regs)) {
 		ret = PTR_ERR(hcd->regs);
-		goto out8;
+		goto fail_resource;
 	}
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
@@ -317,7 +310,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		ret = -ENXIO;
-		goto out8;
+		goto fail_resource;
 	}
 
 	nxp_start_hc();
@@ -331,23 +324,24 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 		return ret;
 
 	nxp_stop_hc();
-out8:
+fail_resource:
 	usb_put_hcd(hcd);
-out7:
+fail_hcd:
 	clk_disable(usb_otg_clk);
-out6:
+fail_otgen:
 	clk_put(usb_otg_clk);
-out5:
+fail_otg:
 	clk_disable(usb_dev_clk);
-out4:
+fail_deven:
 	clk_put(usb_dev_clk);
-out3:
+fail_dev:
+fail_rate:
 	clk_disable(usb_pll_clk);
-out2:
+fail_pllen:
 	clk_put(usb_pll_clk);
-out1:
+fail_pll:
+fail_disable:
 	isp1301_i2c_client = NULL;
-out:
 	return ret;
 }
 
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index ddfc31427bc0..8663851c8d8e 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -114,8 +114,6 @@ static const struct hc_driver ohci_omap3_hc_driver = {
 
 /*-------------------------------------------------------------------------*/
 
-static u64 omap_ohci_dma_mask = DMA_BIT_MASK(32);
-
 /*
  * configure so an HC device and id are always provided
  * always called with process context; sleeping is OK
@@ -168,8 +166,10 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &omap_ohci_dma_mask;
+	if (!dev->dma_mask)
+		dev->dma_mask = &dev->coherent_dma_mask;
+	if (!dev->coherent_dma_mask)
+		dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
 	hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev,
 			dev_name(dev));
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index efe71f3ca477..279b2ef17411 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -282,8 +282,6 @@ static const struct of_device_id pxa_ohci_dt_ids[] = {
 
 MODULE_DEVICE_TABLE(of, pxa_ohci_dt_ids);
 
-static u64 pxa_ohci_dma_mask = DMA_BIT_MASK(32);
-
 static int ohci_pxa_of_init(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -298,7 +296,9 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pxa_ohci_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 9020bf0e2eca..3e19e0170d11 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -91,8 +91,6 @@ static const struct hc_driver ohci_spear_hc_driver = {
 	.start_port_reset	= ohci_start_port_reset,
 };
 
-static u64 spear_ohci_dma_mask = DMA_BIT_MASK(32);
-
 static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
 {
 	const struct hc_driver *driver = &ohci_spear_hc_driver;
@@ -114,7 +112,9 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &spear_ohci_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	usbh_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(usbh_clk)) {
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index 4f0f0339532f..0f401dbfaf07 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -3084,7 +3084,7 @@ static int oxu_hub_status_data(struct usb_hcd *hcd, char *buf)
 	int ports, i, retval = 1;
 	unsigned long flags;
 
-	/* if !USB_SUSPEND, root hub timers won't get shut down ... */
+	/* if !PM_RUNTIME, root hub timers won't get shut down ... */
 	if (!HC_IS_RUNNING(hcd->state))
 		return 0;
 
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index ad4483efb6d6..b2ec7fe758dd 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -22,7 +22,7 @@
  * and usb-storage.
  *
  * TODO:
- * - usb suspend/resume triggered by sl811 (with USB_SUSPEND)
+ * - usb suspend/resume triggered by sl811 (with PM_RUNTIME)
  * - various issues noted in the code
  * - performance work; use both register banks; ...
  * - use urb->iso_frame_desc[] with ISO transfers
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index f87bee6d2789..9189bc984c98 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -225,7 +225,8 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 		/* auto-stop if nothing connected for 1 second */
 		if (any_ports_active(uhci))
 			uhci->rh_state = UHCI_RH_RUNNING;
-		else if (time_after_eq(jiffies, uhci->auto_stop_time))
+		else if (time_after_eq(jiffies, uhci->auto_stop_time) &&
+				!uhci->wait_for_hp)
 			suspend_rh(uhci, UHCI_RH_AUTO_STOPPED);
 		break;
 
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index 8c4dace4b14a..f1db61ada6a8 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -60,8 +60,6 @@ static const struct hc_driver uhci_platform_hc_driver = {
 	.hub_control =		uhci_hub_control,
 };
 
-static u64 platform_uhci_dma_mask = DMA_BIT_MASK(32);
-
 static int uhci_hcd_platform_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd;
@@ -78,7 +76,9 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &platform_uhci_dma_mask;
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
 	hcd = usb_create_hcd(&uhci_platform_hc_driver, &pdev->dev,
 			pdev->name);
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index f0976d8190bc..041c6ddb695c 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -1287,7 +1287,7 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
 		return -EINVAL;		/* Can't change the period */
 
 	} else {
-		next = uhci->frame_number + 2;
+		next = uhci->frame_number + 1;
 
 		/* Find the next unused frame */
 		if (list_empty(&qh->queue)) {
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 965b539bc474..2cfc465925bd 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1423,15 +1423,17 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 	ep_ctx->ep_info2 |= cpu_to_le32(xhci_get_endpoint_type(udev, ep));
 
 	/* Set the max packet size and max burst */
+	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
+	max_burst = 0;
 	switch (udev->speed) {
 	case USB_SPEED_SUPER:
-		max_packet = usb_endpoint_maxp(&ep->desc);
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		/* dig out max burst from ep companion desc */
-		max_packet = ep->ss_ep_comp.bMaxBurst;
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_packet));
+		max_burst = ep->ss_ep_comp.bMaxBurst;
 		break;
 	case USB_SPEED_HIGH:
+		/* Some devices get this wrong */
+		if (usb_endpoint_xfer_bulk(&ep->desc))
+			max_packet = 512;
 		/* bits 11:12 specify the number of additional transaction
 		 * opportunities per microframe (USB 2.0, section 9.6.6)
 		 */
@@ -1439,17 +1441,16 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 				usb_endpoint_xfer_int(&ep->desc)) {
 			max_burst = (usb_endpoint_maxp(&ep->desc)
 				     & 0x1800) >> 11;
-			ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_burst));
 		}
-		/* Fall through */
+		break;
 	case USB_SPEED_FULL:
 	case USB_SPEED_LOW:
-		max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		break;
 	default:
 		BUG();
 	}
+	ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet) |
+			MAX_BURST(max_burst));
 	max_esit_payload = xhci_get_max_esit_payload(xhci, udev, ep);
 	ep_ctx->tx_info = cpu_to_le32(MAX_ESIT_PAYLOAD_FOR_EP(max_esit_payload));
 
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 3a18e44e9391..e1b661d04021 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -560,6 +560,7 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
 		if (!config) {
 			dev_err(&pdev->dev,
 				"failed to allocate musb hdrc config\n");
+			ret = -ENOMEM;
 			goto err2;
 		}
 
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 3551f1a30c65..628b93fe5ccc 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -549,7 +549,8 @@ static int omap2430_probe(struct platform_device *pdev)
 		glue->control_otghs = omap_get_control_dev();
 		if (IS_ERR(glue->control_otghs)) {
 			dev_vdbg(&pdev->dev, "Failed to get control device\n");
-			return -ENODEV;
+			ret = PTR_ERR(glue->control_otghs);
+			goto err2;
 		}
 	} else {
 		glue->control_otghs = ERR_PTR(-ENODEV);
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 371d0e74e909..7ef3eb8617a6 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -25,7 +25,7 @@ config AB8500_USB
 
 config FSL_USB2_OTG
 	bool "Freescale USB OTG Transceiver Driver"
-	depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_SUSPEND
+	depends on USB_EHCI_FSL && USB_FSL_USB2 && PM_RUNTIME
 	select USB_OTG
 	help
 	  Enable this to support Freescale USB OTG transceiver.
@@ -139,7 +139,6 @@ config USB_ISP1301
 	tristate "NXP ISP1301 USB transceiver support"
 	depends on USB || USB_GADGET
 	depends on I2C
-	select USB_OTG_UTILS
 	help
 	  Say Y here to add support for the NXP ISP1301 USB transceiver driver.
 	  This chip is typically used as USB transceiver for USB host, gadget
@@ -162,7 +161,7 @@ config USB_MSM_OTG
 
 config USB_MV_OTG
 	tristate "Marvell USB OTG support"
-	depends on USB_EHCI_MV && USB_MV_UDC && USB_SUSPEND
+	depends on USB_EHCI_MV && USB_MV_UDC && PM_RUNTIME
 	select USB_OTG
 	help
 	  Say Y here if you want to build Marvell USB OTG transciever
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 4acef26a2ef5..e5eb1b5a04eb 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -892,8 +892,6 @@ static int ab8500_usb_remove(struct platform_device *pdev)
 	else if (ab->mode == USB_PERIPHERAL)
 		ab8500_usb_peri_phy_dis(ab);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 97b9308507c3..e771bafb9f1d 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -799,6 +799,7 @@ static int fsl_otg_conf(struct platform_device *pdev)
 
 	/* initialize the otg structure */
 	fsl_otg_tc->phy.label = DRIVER_DESC;
+	fsl_otg_tc->phy.dev = &pdev->dev;
 	fsl_otg_tc->phy.set_power = fsl_otg_set_power;
 
 	fsl_otg_tc->phy.otg->phy = &fsl_otg_tc->phy;
diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c
index 4c76074e518d..8443335c2ea0 100644
--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
+++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
@@ -266,6 +266,7 @@ static int __init gpio_vbus_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, gpio_vbus);
 	gpio_vbus->dev = &pdev->dev;
 	gpio_vbus->phy.label = "gpio-vbus";
+	gpio_vbus->phy.dev = gpio_vbus->dev;
 	gpio_vbus->phy.set_power = gpio_vbus_set_power;
 	gpio_vbus->phy.set_suspend = gpio_vbus_set_suspend;
 	gpio_vbus->phy.state = OTG_STATE_UNDEFINED;
@@ -343,7 +344,6 @@ err_irq:
 		gpio_free(pdata->gpio_pullup);
 	gpio_free(pdata->gpio_vbus);
 err_gpio:
-	platform_set_drvdata(pdev, NULL);
 	kfree(gpio_vbus->phy.otg);
 	kfree(gpio_vbus);
 	return err;
@@ -365,7 +365,6 @@ static int __exit gpio_vbus_remove(struct platform_device *pdev)
 	if (gpio_is_valid(pdata->gpio_pullup))
 		gpio_free(pdata->gpio_pullup);
 	gpio_free(gpio);
-	platform_set_drvdata(pdev, NULL);
 	kfree(gpio_vbus->phy.otg);
 	kfree(gpio_vbus);
 
diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c
index 225ae6c97eeb..8a55b37d1a02 100644
--- a/drivers/usb/phy/phy-isp1301.c
+++ b/drivers/usb/phy/phy-isp1301.c
@@ -102,6 +102,7 @@ static int isp1301_probe(struct i2c_client *client,
 	mutex_init(&isp->mutex);
 
 	phy = &isp->phy;
+	phy->dev = &client->dev;
 	phy->label = DRV_NAME;
 	phy->init = isp1301_phy_init;
 	phy->set_vbus = isp1301_phy_set_vbus;
diff --git a/drivers/usb/phy/phy-mv-u3d-usb.c b/drivers/usb/phy/phy-mv-u3d-usb.c
index f7838a43347c..1568ea63e338 100644
--- a/drivers/usb/phy/phy-mv-u3d-usb.c
+++ b/drivers/usb/phy/phy-mv-u3d-usb.c
@@ -278,11 +278,6 @@ static int mv_u3d_phy_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "missing mem resource\n");
-		return -ENODEV;
-	}
-
 	phy_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(phy_base))
 		return PTR_ERR(phy_base);
diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
index c987bbe27851..4a6b03c73876 100644
--- a/drivers/usb/phy/phy-mv-usb.c
+++ b/drivers/usb/phy/phy-mv-usb.c
@@ -667,7 +667,6 @@ int mv_otg_remove(struct platform_device *pdev)
 	mv_otg_disable(mvotg);
 
 	usb_remove_phy(&mvotg->phy);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
@@ -850,8 +849,6 @@ err_destroy_workqueue:
 	flush_workqueue(mvotg->qwork);
 	destroy_workqueue(mvotg->qwork);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return retval;
 }
 
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index 9d4381e64d51..bd601c537c8d 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -130,11 +130,6 @@ static int mxs_phy_probe(struct platform_device *pdev)
 	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "can't get device resources\n");
-		return -ENOENT;
-	}
-
 	base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
@@ -160,6 +155,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
 	mxs_phy->phy.set_suspend	= mxs_phy_suspend;
 	mxs_phy->phy.notify_connect	= mxs_phy_on_connect;
 	mxs_phy->phy.notify_disconnect	= mxs_phy_on_disconnect;
+	mxs_phy->phy.type		= USB_PHY_TYPE_USB2;
 
 	ATOMIC_INIT_NOTIFIER_HEAD(&mxs_phy->phy.notifier);
 
@@ -180,8 +176,6 @@ static int mxs_phy_remove(struct platform_device *pdev)
 
 	usb_remove_phy(&mxs_phy->phy);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/usb/phy/phy-nop.c b/drivers/usb/phy/phy-nop.c
index 2b10cc969bbb..638cc5dade35 100644
--- a/drivers/usb/phy/phy-nop.c
+++ b/drivers/usb/phy/phy-nop.c
@@ -254,8 +254,6 @@ static int nop_usb_xceiv_remove(struct platform_device *pdev)
 
 	usb_remove_phy(&nop->phy);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c
index 45ffe036dacc..9d5e273abcc7 100644
--- a/drivers/usb/phy/phy-samsung-usb2.c
+++ b/drivers/usb/phy/phy-samsung-usb2.c
@@ -363,11 +363,6 @@ static int samsung_usb2phy_probe(struct platform_device *pdev)
 	int ret;
 
 	phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!phy_mem) {
-		dev_err(dev, "%s: missing mem resource\n", __func__);
-		return -ENODEV;
-	}
-
 	phy_base = devm_ioremap_resource(dev, phy_mem);
 	if (IS_ERR(phy_base))
 		return PTR_ERR(phy_base);
diff --git a/drivers/usb/phy/phy-samsung-usb3.c b/drivers/usb/phy/phy-samsung-usb3.c
index 133f3d0c554f..5a9efcbcb532 100644
--- a/drivers/usb/phy/phy-samsung-usb3.c
+++ b/drivers/usb/phy/phy-samsung-usb3.c
@@ -239,11 +239,6 @@ static int samsung_usb3phy_probe(struct platform_device *pdev)
 	int ret;
 
 	phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!phy_mem) {
-		dev_err(dev, "%s: missing mem resource\n", __func__);
-		return -ENODEV;
-	}
-
 	phy_base = devm_ioremap_resource(dev, phy_mem);
 	if (IS_ERR(phy_base))
 		return PTR_ERR(phy_base);
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 242b5776648a..7260ec660347 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -189,6 +189,8 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
+	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) },
+	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
@@ -924,8 +926,8 @@ static int  ftdi_tiocmset(struct tty_struct *tty,
 static int  ftdi_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
-static int ftdi_chars_in_buffer(struct tty_struct *tty);
-static int ftdi_get_modem_status(struct tty_struct *tty,
+static bool ftdi_tx_empty(struct usb_serial_port *port);
+static int ftdi_get_modem_status(struct usb_serial_port *port,
 						unsigned char status[2]);
 
 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
@@ -961,7 +963,7 @@ static struct usb_serial_driver ftdi_sio_device = {
 	.ioctl =		ftdi_ioctl,
 	.set_termios =		ftdi_set_termios,
 	.break_ctl =		ftdi_break_ctl,
-	.chars_in_buffer =      ftdi_chars_in_buffer,
+	.tx_empty =		ftdi_tx_empty,
 };
 
 static struct usb_serial_driver * const serial_drivers[] = {
@@ -2056,27 +2058,18 @@ static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
 
 }
 
-static int ftdi_chars_in_buffer(struct tty_struct *tty)
+static bool ftdi_tx_empty(struct usb_serial_port *port)
 {
-	struct usb_serial_port *port = tty->driver_data;
-	int chars;
 	unsigned char buf[2];
 	int ret;
 
-	chars = usb_serial_generic_chars_in_buffer(tty);
-	if (chars)
-		goto out;
-
-	/* Check if hardware buffer is empty. */
-	ret = ftdi_get_modem_status(tty, buf);
+	ret = ftdi_get_modem_status(port, buf);
 	if (ret == 2) {
 		if (!(buf[1] & FTDI_RS_TEMT))
-			chars = 1;
+			return false;
 	}
-out:
-	dev_dbg(&port->dev, "%s - %d\n", __func__, chars);
 
-	return chars;
+	return true;
 }
 
 /* old_termios contains the original termios settings and tty->termios contains
@@ -2268,10 +2261,9 @@ no_c_cflag_changes:
  * Returns the number of status bytes retrieved (device dependant), or
  * negative error code.
  */
-static int ftdi_get_modem_status(struct tty_struct *tty,
+static int ftdi_get_modem_status(struct usb_serial_port *port,
 						unsigned char status[2])
 {
-	struct usb_serial_port *port = tty->driver_data;
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
 	unsigned char *buf;
 	int len;
@@ -2336,7 +2328,7 @@ static int ftdi_tiocmget(struct tty_struct *tty)
 	unsigned char buf[2];
 	int ret;
 
-	ret = ftdi_get_modem_status(tty, buf);
+	ret = ftdi_get_modem_status(port, buf);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 98528270c43c..6dd79253205d 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -772,6 +772,8 @@
  */
 #define NEWPORT_VID			0x104D
 #define NEWPORT_AGILIS_PID		0x3000
+#define NEWPORT_CONEX_CC_PID		0x3002
+#define NEWPORT_CONEX_AGP_PID		0x3006
 
 /* Interbiometrics USB I/O Board */
 /* Developed for Interbiometrics by Rudolf Gugler */
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 297665fdd16d..ba45170c78e5 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -253,6 +253,37 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
 }
 EXPORT_SYMBOL_GPL(usb_serial_generic_chars_in_buffer);
 
+void usb_serial_generic_wait_until_sent(struct tty_struct *tty, long timeout)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	unsigned int bps;
+	unsigned long period;
+	unsigned long expire;
+
+	bps = tty_get_baud_rate(tty);
+	if (!bps)
+		bps = 9600;	/* B0 */
+	/*
+	 * Use a poll-period of roughly the time it takes to send one
+	 * character or at least one jiffy.
+	 */
+	period = max_t(unsigned long, (10 * HZ / bps), 1);
+	period = min_t(unsigned long, period, timeout);
+
+	dev_dbg(&port->dev, "%s - timeout = %u ms, period = %u ms\n",
+					__func__, jiffies_to_msecs(timeout),
+					jiffies_to_msecs(period));
+	expire = jiffies + timeout;
+	while (!port->serial->type->tx_empty(port)) {
+		schedule_timeout_interruptible(period);
+		if (signal_pending(current))
+			break;
+		if (time_after(jiffies, expire))
+			break;
+	}
+}
+EXPORT_SYMBOL_GPL(usb_serial_generic_wait_until_sent);
+
 static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
 						int index, gfp_t mem_flags)
 {
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 158bf4bc29cc..1be6ba7bee27 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2019,8 +2019,6 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	int chars = 0;
 	unsigned long flags;
-	int ret;
-
 	if (edge_port == NULL)
 		return 0;
 
@@ -2028,16 +2026,22 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 	chars = kfifo_len(&edge_port->write_fifo);
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
-	if (!chars) {
-		ret = tx_active(edge_port);
-		if (ret > 0)
-			chars = ret;
-	}
-
 	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
 	return chars;
 }
 
+static bool edge_tx_empty(struct usb_serial_port *port)
+{
+	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+	int ret;
+
+	ret = tx_active(edge_port);
+	if (ret > 0)
+		return false;
+
+	return true;
+}
+
 static void edge_throttle(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
@@ -2557,6 +2561,7 @@ static struct usb_serial_driver edgeport_1port_device = {
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,
+	.tx_empty		= edge_tx_empty,
 	.break_ctl		= edge_break,
 	.read_int_callback	= edge_interrupt_callback,
 	.read_bulk_callback	= edge_bulk_in_callback,
@@ -2589,6 +2594,7 @@ static struct usb_serial_driver edgeport_2port_device = {
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,
+	.tx_empty		= edge_tx_empty,
 	.break_ctl		= edge_break,
 	.read_int_callback	= edge_interrupt_callback,
 	.read_bulk_callback	= edge_bulk_in_callback,
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 734372846abb..93d02bc4eb52 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -196,6 +196,7 @@ static void option_instat_callback(struct urb *urb);
 
 #define DELL_PRODUCT_5800_MINICARD_VZW		0x8195  /* Novatel E362 */
 #define DELL_PRODUCT_5800_V2_MINICARD_VZW	0x8196  /* Novatel E362 */
+#define DELL_PRODUCT_5804_MINICARD_ATT		0x819b  /* Novatel E371 */
 
 #define KYOCERA_VENDOR_ID			0x0c88
 #define KYOCERA_PRODUCT_KPC650			0x17da
@@ -341,8 +342,8 @@ static void option_instat_callback(struct urb *urb);
 #define CINTERION_PRODUCT_EU3_E			0x0051
 #define CINTERION_PRODUCT_EU3_P			0x0052
 #define CINTERION_PRODUCT_PH8			0x0053
-#define CINTERION_PRODUCT_AH6			0x0055
-#define CINTERION_PRODUCT_PLS8			0x0060
+#define CINTERION_PRODUCT_AHXX			0x0055
+#define CINTERION_PRODUCT_PLXX			0x0060
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID			0x0b3c
@@ -771,6 +772,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) }, 	/* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -966,6 +968,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0330, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0395, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0412, 0xff, 0xff, 0xff), /* Telewell TW-LTE 4G */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff),
@@ -1264,8 +1268,9 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_E) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8) },
-	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AH6) },
-	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLS8) },
+	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
+	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
+		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, 
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
 	{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index cac47aef2918..c92c5ed4e580 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -101,6 +101,7 @@ static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
 		const unsigned char *data, int count);
 static int ti_write_room(struct tty_struct *tty);
 static int ti_chars_in_buffer(struct tty_struct *tty);
+static bool ti_tx_empty(struct usb_serial_port *port);
 static void ti_throttle(struct tty_struct *tty);
 static void ti_unthrottle(struct tty_struct *tty);
 static int ti_ioctl(struct tty_struct *tty,
@@ -222,6 +223,7 @@ static struct usb_serial_driver ti_1port_device = {
 	.write			= ti_write,
 	.write_room		= ti_write_room,
 	.chars_in_buffer	= ti_chars_in_buffer,
+	.tx_empty		= ti_tx_empty,
 	.throttle		= ti_throttle,
 	.unthrottle		= ti_unthrottle,
 	.ioctl			= ti_ioctl,
@@ -253,6 +255,7 @@ static struct usb_serial_driver ti_2port_device = {
 	.write			= ti_write,
 	.write_room		= ti_write_room,
 	.chars_in_buffer	= ti_chars_in_buffer,
+	.tx_empty		= ti_tx_empty,
 	.throttle		= ti_throttle,
 	.unthrottle		= ti_unthrottle,
 	.ioctl			= ti_ioctl,
@@ -684,8 +687,6 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
 	struct ti_port *tport = usb_get_serial_port_data(port);
 	int chars = 0;
 	unsigned long flags;
-	int ret;
-	u8 lsr;
 
 	if (tport == NULL)
 		return 0;
@@ -694,16 +695,22 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
 	chars = kfifo_len(&tport->write_fifo);
 	spin_unlock_irqrestore(&tport->tp_lock, flags);
 
-	if (!chars) {
-		ret = ti_get_lsr(tport, &lsr);
-		if (!ret && !(lsr & TI_LSR_TX_EMPTY))
-			chars = 1;
-	}
-
 	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
 	return chars;
 }
 
+static bool ti_tx_empty(struct usb_serial_port *port)
+{
+	struct ti_port *tport = usb_get_serial_port_data(port);
+	int ret;
+	u8 lsr;
+
+	ret = ti_get_lsr(tport, &lsr);
+	if (!ret && !(lsr & TI_LSR_TX_EMPTY))
+		return false;
+
+	return true;
+}
 
 static void ti_throttle(struct tty_struct *tty)
 {
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index cf75beb1251b..4753c005cfb6 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -359,20 +359,29 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
 	struct usb_serial *serial = port->serial;
-	int count = 0;
 
 	dev_dbg(tty->dev, "%s\n", __func__);
 
-	mutex_lock(&serial->disc_mutex);
-	/* if the device was unplugged then any remaining characters
-	   fell out of the connector ;) */
 	if (serial->disconnected)
-		count = 0;
-	else
-		count = serial->type->chars_in_buffer(tty);
-	mutex_unlock(&serial->disc_mutex);
+		return 0;
+
+	return serial->type->chars_in_buffer(tty);
+}
+
+static void serial_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct usb_serial *serial = port->serial;
+
+	dev_dbg(tty->dev, "%s\n", __func__);
+
+	if (!port->serial->type->wait_until_sent)
+		return;
 
-	return count;
+	mutex_lock(&serial->disc_mutex);
+	if (!serial->disconnected)
+		port->serial->type->wait_until_sent(tty, timeout);
+	mutex_unlock(&serial->disc_mutex);
 }
 
 static void serial_throttle(struct tty_struct *tty)
@@ -1191,6 +1200,7 @@ static const struct tty_operations serial_ops = {
 	.unthrottle =		serial_unthrottle,
 	.break_ctl =		serial_break,
 	.chars_in_buffer =	serial_chars_in_buffer,
+	.wait_until_sent =	serial_wait_until_sent,
 	.tiocmget =		serial_tiocmget,
 	.tiocmset =		serial_tiocmset,
 	.get_icount =		serial_get_icount,
@@ -1316,6 +1326,8 @@ static void usb_serial_operations_init(struct usb_serial_driver *device)
 	set_to_generic_if_null(device, close);
 	set_to_generic_if_null(device, write_room);
 	set_to_generic_if_null(device, chars_in_buffer);
+	if (device->tx_empty)
+		set_to_generic_if_null(device, wait_until_sent);
 	set_to_generic_if_null(device, read_bulk_callback);
 	set_to_generic_if_null(device, write_bulk_callback);
 	set_to_generic_if_null(device, process_read_urb);
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 8623577bbbe7..281be56d5648 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -105,8 +105,9 @@ struct rts51x_chip {
 	int status_len;
 
 	u32 flag;
-#ifdef CONFIG_REALTEK_AUTOPM
 	struct us_data *us;
+
+#ifdef CONFIG_REALTEK_AUTOPM
 	struct timer_list rts51x_suspend_timer;
 	unsigned long timer_expires;
 	int pwr_state;
@@ -988,6 +989,7 @@ static int init_realtek_cr(struct us_data *us)
 	us->extra = chip;
 	us->extra_destructor = realtek_cr_destructor;
 	us->max_lun = chip->max_lun = rts51x_get_max_lun(us);
+	chip->us = us;
 
 	usb_stor_dbg(us, "chip->max_lun = %d\n", chip->max_lun);
 
@@ -1010,10 +1012,8 @@ static int init_realtek_cr(struct us_data *us)
 			SET_AUTO_DELINK(chip);
 	}
 #ifdef CONFIG_REALTEK_AUTOPM
-	if (ss_en) {
-		chip->us = us;
+	if (ss_en)
 		realtek_cr_autosuspend_setup(us);
-	}
 #endif
 
 	usb_stor_dbg(us, "chip->flag = 0x%x\n", chip->flag);