Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (144 commits)
  USB: add support for Dream Cheeky DL100B Webmail Notifier (1d34:0004)
  USB: serial: ftdi_sio: add support for TIOCSERGETLSR
  USB: ehci-mxc: Setup portsc register prior to accessing OTG viewport
  USB: atmel_usba_udc: fix freeing irq in usba_udc_remove()
  usb: ehci-omap: fix tll channel enable mask
  usb: ohci-omap3: fix trivial typo
  USB: gadget: ci13xxx: don't assume that PAGE_SIZE is 4096
  USB: gadget: ci13xxx: fix complete() callback for no_interrupt rq's
  USB: gadget: update ci13xxx to work with g_ether
  USB: gadgets: ci13xxx: fix probing of compiled-in gadget drivers
  Revert "USB: musb: pm: don't rely fully on clock support"
  Revert "USB: musb: blackfin: pm: make it work"
  USB: uas: Use GFP_NOIO instead of GFP_KERNEL in I/O submission path
  USB: uas: Ensure we only bind to a UAS interface
  USB: uas: Rename sense pipe and sense urb to status pipe and status urb
  USB: uas: Use kzalloc instead of kmalloc
  USB: uas: Fix up the Sense IU
  usb: musb: core: kill unneeded #include's
  DA8xx: assign name to MUSB IRQ resource
  usb: gadget: g_ncm added
  ...

Manually fix up trivial conflicts in USB Kconfig changes in:
	arch/arm/mach-omap2/Kconfig
	arch/sh/Kconfig
	drivers/usb/Kconfig
	drivers/usb/host/ehci-hcd.c
and annoying chip clock data conflicts in:
	arch/arm/mach-omap2/clock3xxx_data.c
	arch/arm/mach-omap2/clock44xx_data.c

28 files changed, 8604 insertions, 878 deletions

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 607d0db4a98..1dc9739277b 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -338,6 +338,19 @@ config USB_S3C2410_DEBUG
 	boolean "S3C2410 udc debug messages"
 	depends on USB_GADGET_S3C2410
 
+config USB_GADGET_PXA_U2O
+	boolean "PXA9xx Processor USB2.0 controller"
+	select USB_GADGET_DUALSPEED
+	help
+	  PXA9xx Processor series include a high speed USB2.0 device
+	  controller, which support high speed and full speed USB peripheral.
+
+config USB_PXA_U2O
+	tristate
+	depends on USB_GADGET_PXA_U2O
+	default USB_GADGET
+	select USB_GADGET_SELECTED
+
 #
 # Controllers available in both integrated and discrete versions
 #
@@ -414,8 +427,8 @@ config USB_FSL_QE
 	default USB_GADGET
 	select USB_GADGET_SELECTED
 
-config USB_GADGET_CI13XXX
-	boolean "MIPS USB CI13xxx"
+config USB_GADGET_CI13XXX_PCI
+	boolean "MIPS USB CI13xxx PCI UDC"
 	depends on PCI
 	select USB_GADGET_DUALSPEED
 	help
@@ -426,9 +439,9 @@ config USB_GADGET_CI13XXX
 	  dynamically linked module called "ci13xxx_udc" and force all
 	  gadget drivers to also be dynamically linked.
 
-config USB_CI13XXX
+config USB_CI13XXX_PCI
 	tristate
-	depends on USB_GADGET_CI13XXX
+	depends on USB_GADGET_CI13XXX_PCI
 	default USB_GADGET
 	select USB_GADGET_SELECTED
 
@@ -495,6 +508,49 @@ config USB_LANGWELL
 	default USB_GADGET
 	select USB_GADGET_SELECTED
 
+config USB_GADGET_EG20T
+	boolean "Intel EG20T(Topcliff) USB Device controller"
+	depends on PCI
+	select USB_GADGET_DUALSPEED
+	help
+	  This is a USB device driver for EG20T PCH.
+	  EG20T PCH is the platform controller hub that is used in Intel's
+	  general embedded platform. EG20T PCH has USB device interface.
+	  Using this interface, it is able to access system devices connected
+	  to USB device.
+	  This driver enables USB device function.
+	  USB device is a USB peripheral controller which
+	  supports both full and high speed USB 2.0 data transfers.
+	  This driver supports both control transfer and bulk transfer modes.
+	  This driver dose not support interrupt transfer or isochronous
+	  transfer modes.
+
+config USB_EG20T
+	tristate
+	depends on USB_GADGET_EG20T
+	default USB_GADGET
+	select USB_GADGET_SELECTED
+
+config USB_GADGET_CI13XXX_MSM
+	boolean "MIPS USB CI13xxx for MSM"
+	depends on ARCH_MSM
+	select USB_GADGET_DUALSPEED
+	select USB_MSM_OTG_72K
+	help
+	  MSM SoC has chipidea USB controller.  This driver uses
+	  ci13xxx_udc core.
+	  This driver depends on OTG driver for PHY initialization,
+	  clock management, powering up VBUS, and power management.
+
+	  Say "y" to link the driver statically, or "m" to build a
+	  dynamically linked module called "ci13xxx_msm" and force all
+	  gadget drivers to also be dynamically linked.
+
+config USB_CI13XXX_MSM
+	tristate
+	depends on USB_GADGET_CI13XXX_MSM
+	default USB_GADGET
+	select USB_GADGET_SELECTED
 
 #
 # LAST -- dummy/emulated controller
@@ -685,6 +741,19 @@ config USB_ETH_EEM
          If you say "y" here, the Ethernet gadget driver will use the EEM
          protocol rather than ECM.  If unsure, say "n".
 
+config USB_G_NCM
+	tristate "Network Control Model (NCM) support"
+	depends on NET
+	select CRC32
+	help
+	  This driver implements USB CDC NCM subclass standard. NCM is
+	  an advanced protocol for Ethernet encapsulation, allows grouping
+	  of several ethernet frames into one USB transfer and diffferent
+	  alignment possibilities.
+
+	  Say "y" to link the driver statically, or "m" to build a
+	  dynamically linked module called "g_ncm".
+
 config USB_GADGETFS
 	tristate "Gadget Filesystem (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 5780db42417..55f5e8ae592 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -21,9 +21,13 @@ fsl_usb2_udc-$(CONFIG_ARCH_MXC)	+= fsl_mxc_udc.o
 obj-$(CONFIG_USB_M66592)	+= m66592-udc.o
 obj-$(CONFIG_USB_R8A66597)	+= r8a66597-udc.o
 obj-$(CONFIG_USB_FSL_QE)	+= fsl_qe_udc.o
-obj-$(CONFIG_USB_CI13XXX)	+= ci13xxx_udc.o
+obj-$(CONFIG_USB_CI13XXX_PCI)	+= ci13xxx_pci.o
 obj-$(CONFIG_USB_S3C_HSOTG)	+= s3c-hsotg.o
 obj-$(CONFIG_USB_LANGWELL)	+= langwell_udc.o
+obj-$(CONFIG_USB_EG20T)		+= pch_udc.o
+obj-$(CONFIG_USB_PXA_U2O)	+= mv_udc.o
+mv_udc-y			:= mv_udc_core.o mv_udc_phy.o
+obj-$(CONFIG_USB_CI13XXX_MSM)	+= ci13xxx_msm.o
 
 #
 # USB gadget drivers
@@ -43,6 +47,7 @@ g_hid-y				:= hid.o
 g_dbgp-y			:= dbgp.o
 g_nokia-y			:= nokia.o
 g_webcam-y			:= webcam.o
+g_ncm-y				:= ncm.o
 
 obj-$(CONFIG_USB_ZERO)		+= g_zero.o
 obj-$(CONFIG_USB_AUDIO)		+= g_audio.o
@@ -60,3 +65,4 @@ obj-$(CONFIG_USB_G_DBGP)	+= g_dbgp.o
 obj-$(CONFIG_USB_G_MULTI)	+= g_multi.o
 obj-$(CONFIG_USB_G_NOKIA)	+= g_nokia.o
 obj-$(CONFIG_USB_G_WEBCAM)	+= g_webcam.o
+obj-$(CONFIG_USB_G_NCM)		+= g_ncm.o
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index 9034e034472..f8dd7269d79 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -3359,7 +3359,6 @@ static int udc_probe(struct udc *dev)
 	dev_set_name(&dev->gadget.dev, "gadget");
 	dev->gadget.dev.release = gadget_release;
 	dev->gadget.name = name;
-	dev->gadget.name = name;
 	dev->gadget.is_dualspeed = 1;
 
 	/* init registers, interrupts, ... */
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index 717ff653fa2..e7c65a4408f 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -2057,8 +2057,10 @@ static int __exit usba_udc_remove(struct platform_device *pdev)
 		usba_ep_cleanup_debugfs(&usba_ep[i]);
 	usba_cleanup_debugfs(udc);
 
-	if (gpio_is_valid(udc->vbus_pin))
+	if (gpio_is_valid(udc->vbus_pin)) {
+		free_irq(gpio_to_irq(udc->vbus_pin), udc);
 		gpio_free(udc->vbus_pin);
+	}
 
 	free_irq(udc->irq, udc);
 	kfree(usba_ep);
diff --git a/drivers/usb/gadget/ci13xxx_msm.c b/drivers/usb/gadget/ci13xxx_msm.c
new file mode 100644
index 00000000000..139ac941959
--- /dev/null
+++ b/drivers/usb/gadget/ci13xxx_msm.c
@@ -0,0 +1,134 @@
+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/usb/msm_hsusb_hw.h>
+#include <linux/usb/ulpi.h>
+
+#include "ci13xxx_udc.c"
+
+#define MSM_USB_BASE	(udc->regs)
+
+static irqreturn_t msm_udc_irq(int irq, void *data)
+{
+	return udc_irq();
+}
+
+static void ci13xxx_msm_notify_event(struct ci13xxx *udc, unsigned event)
+{
+	struct device *dev = udc->gadget.dev.parent;
+	int val;
+
+	switch (event) {
+	case CI13XXX_CONTROLLER_RESET_EVENT:
+		dev_dbg(dev, "CI13XXX_CONTROLLER_RESET_EVENT received\n");
+		writel(0, USB_AHBBURST);
+		writel(0, USB_AHBMODE);
+		break;
+	case CI13XXX_CONTROLLER_STOPPED_EVENT:
+		dev_dbg(dev, "CI13XXX_CONTROLLER_STOPPED_EVENT received\n");
+		/*
+		 * Put the transceiver in non-driving mode. Otherwise host
+		 * may not detect soft-disconnection.
+		 */
+		val = otg_io_read(udc->transceiver, ULPI_FUNC_CTRL);
+		val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
+		val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
+		otg_io_write(udc->transceiver, val, ULPI_FUNC_CTRL);
+		break;
+	default:
+		dev_dbg(dev, "unknown ci13xxx_udc event\n");
+		break;
+	}
+}
+
+static struct ci13xxx_udc_driver ci13xxx_msm_udc_driver = {
+	.name			= "ci13xxx_msm",
+	.flags			= CI13XXX_REGS_SHARED |
+				  CI13XXX_REQUIRE_TRANSCEIVER |
+				  CI13XXX_PULLUP_ON_VBUS |
+				  CI13XXX_DISABLE_STREAMING,
+
+	.notify_event		= ci13xxx_msm_notify_event,
+};
+
+static int ci13xxx_msm_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	void __iomem *regs;
+	int irq;
+	int ret;
+
+	dev_dbg(&pdev->dev, "ci13xxx_msm_probe\n");
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "failed to get platform resource mem\n");
+		return -ENXIO;
+	}
+
+	regs = ioremap(res->start, resource_size(res));
+	if (!regs) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		return -ENOMEM;
+	}
+
+	ret = udc_probe(&ci13xxx_msm_udc_driver, &pdev->dev, regs);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "udc_probe failed\n");
+		goto iounmap;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "IRQ not found\n");
+		ret = -ENXIO;
+		goto udc_remove;
+	}
+
+	ret = request_irq(irq, msm_udc_irq, IRQF_SHARED, pdev->name, pdev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "request_irq failed\n");
+		goto udc_remove;
+	}
+
+	pm_runtime_no_callbacks(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+udc_remove:
+	udc_remove();
+iounmap:
+	iounmap(regs);
+
+	return ret;
+}
+
+static struct platform_driver ci13xxx_msm_driver = {
+	.probe = ci13xxx_msm_probe,
+	.driver = { .name = "msm_hsusb", },
+};
+
+static int __init ci13xxx_msm_init(void)
+{
+	return platform_driver_register(&ci13xxx_msm_driver);
+}
+module_init(ci13xxx_msm_init);
diff --git a/drivers/usb/gadget/ci13xxx_pci.c b/drivers/usb/gadget/ci13xxx_pci.c
new file mode 100644
index 00000000000..883ab5e832d
--- /dev/null
+++ b/drivers/usb/gadget/ci13xxx_pci.c
@@ -0,0 +1,176 @@
+/*
+ * ci13xxx_pci.c - MIPS USB IP core family device controller
+ *
+ * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
+ *
+ * Author: David Lopo
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "ci13xxx_udc.c"
+
+/* driver name */
+#define UDC_DRIVER_NAME   "ci13xxx_pci"
+
+/******************************************************************************
+ * PCI block
+ *****************************************************************************/
+/**
+ * ci13xxx_pci_irq: interrut handler
+ * @irq:  irq number
+ * @pdev: USB Device Controller interrupt source
+ *
+ * This function returns IRQ_HANDLED if the IRQ has been handled
+ * This is an ISR don't trace, use attribute interface instead
+ */
+static irqreturn_t ci13xxx_pci_irq(int irq, void *pdev)
+{
+	if (irq == 0) {
+		dev_err(&((struct pci_dev *)pdev)->dev, "Invalid IRQ0 usage!");
+		return IRQ_HANDLED;
+	}
+	return udc_irq();
+}
+
+static struct ci13xxx_udc_driver ci13xxx_pci_udc_driver = {
+	.name		= UDC_DRIVER_NAME,
+};
+
+/**
+ * ci13xxx_pci_probe: PCI probe
+ * @pdev: USB device controller being probed
+ * @id:   PCI hotplug ID connecting controller to UDC framework
+ *
+ * This function returns an error code
+ * Allocates basic PCI resources for this USB device controller, and then
+ * invokes the udc_probe() method to start the UDC associated with it
+ */
+static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
+				       const struct pci_device_id *id)
+{
+	void __iomem *regs = NULL;
+	int retval = 0;
+
+	if (id == NULL)
+		return -EINVAL;
+
+	retval = pci_enable_device(pdev);
+	if (retval)
+		goto done;
+
+	if (!pdev->irq) {
+		dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
+		retval = -ENODEV;
+		goto disable_device;
+	}
+
+	retval = pci_request_regions(pdev, UDC_DRIVER_NAME);
+	if (retval)
+		goto disable_device;
+
+	/* BAR 0 holds all the registers */
+	regs = pci_iomap(pdev, 0, 0);
+	if (!regs) {
+		dev_err(&pdev->dev, "Error mapping memory!");
+		retval = -EFAULT;
+		goto release_regions;
+	}
+	pci_set_drvdata(pdev, (__force void *)regs);
+
+	pci_set_master(pdev);
+	pci_try_set_mwi(pdev);
+
+	retval = udc_probe(&ci13xxx_pci_udc_driver, &pdev->dev, regs);
+	if (retval)
+		goto iounmap;
+
+	/* our device does not have MSI capability */
+
+	retval = request_irq(pdev->irq, ci13xxx_pci_irq, IRQF_SHARED,
+			     UDC_DRIVER_NAME, pdev);
+	if (retval)
+		goto gadget_remove;
+
+	return 0;
+
+ gadget_remove:
+	udc_remove();
+ iounmap:
+	pci_iounmap(pdev, regs);
+ release_regions:
+	pci_release_regions(pdev);
+ disable_device:
+	pci_disable_device(pdev);
+ done:
+	return retval;
+}
+
+/**
+ * ci13xxx_pci_remove: PCI remove
+ * @pdev: USB Device Controller being removed
+ *
+ * Reverses the effect of ci13xxx_pci_probe(),
+ * first invoking the udc_remove() and then releases
+ * all PCI resources allocated for this USB device controller
+ */
+static void __devexit ci13xxx_pci_remove(struct pci_dev *pdev)
+{
+	free_irq(pdev->irq, pdev);
+	udc_remove();
+	pci_iounmap(pdev, (__force void __iomem *)pci_get_drvdata(pdev));
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+}
+
+/**
+ * PCI device table
+ * PCI device structure
+ *
+ * Check "pci.h" for details
+ */
+static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
+	{ PCI_DEVICE(0x153F, 0x1004) },
+	{ PCI_DEVICE(0x153F, 0x1006) },
+	{ 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);
+
+static struct pci_driver ci13xxx_pci_driver = {
+	.name         =	UDC_DRIVER_NAME,
+	.id_table     =	ci13xxx_pci_id_table,
+	.probe        =	ci13xxx_pci_probe,
+	.remove       =	__devexit_p(ci13xxx_pci_remove),
+};
+
+/**
+ * ci13xxx_pci_init: module init
+ *
+ * Driver load
+ */
+static int __init ci13xxx_pci_init(void)
+{
+	return pci_register_driver(&ci13xxx_pci_driver);
+}
+module_init(ci13xxx_pci_init);
+
+/**
+ * ci13xxx_pci_exit: module exit
+ *
+ * Driver unload
+ */
+static void __exit ci13xxx_pci_exit(void)
+{
+	pci_unregister_driver(&ci13xxx_pci_driver);
+}
+module_exit(ci13xxx_pci_exit);
+
+MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
+MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("June 2008");
diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c
index 98b36fc88c7..31656a2b4ab 100644
--- a/drivers/usb/gadget/ci13xxx_udc.c
+++ b/drivers/usb/gadget/ci13xxx_udc.c
@@ -22,7 +22,6 @@
  * - ENDPT:  endpoint operations (Gadget API)
  * - GADGET: gadget operations (Gadget API)
  * - BUS:    bus glue code, bus abstraction layer
- * - PCI:    PCI core interface and PCI resources (interrupts, memory...)
  *
  * Compile Options
  * - CONFIG_USB_GADGET_DEBUG_FILES: enable debug facilities
@@ -60,11 +59,11 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/slab.h>
+#include <linux/pm_runtime.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/otg.h>
 
 #include "ci13xxx_udc.h"
 
@@ -75,9 +74,6 @@
 /* ctrl register bank access */
 static DEFINE_SPINLOCK(udc_lock);
 
-/* driver name */
-#define UDC_DRIVER_NAME   "ci13xxx_udc"
-
 /* control endpoint description */
 static const struct usb_endpoint_descriptor
 ctrl_endpt_desc = {
@@ -132,6 +128,9 @@ static struct {
 	size_t        size;   /* bank size */
 } hw_bank;
 
+/* MSM specific */
+#define ABS_AHBBURST        (0x0090UL)
+#define ABS_AHBMODE         (0x0098UL)
 /* UDC register map */
 #define ABS_CAPLENGTH       (0x100UL)
 #define ABS_HCCPARAMS       (0x108UL)
@@ -248,13 +247,7 @@ static u32 hw_ctest_and_write(u32 addr, u32 mask, u32 data)
 	return (reg & mask) >> ffs_nr(mask);
 }
 
-/**
- * hw_device_reset: resets chip (execute without interruption)
- * @base: register base address
- *
- * This function returns an error code
- */
-static int hw_device_reset(void __iomem *base)
+static int hw_device_init(void __iomem *base)
 {
 	u32 reg;
 
@@ -271,6 +264,28 @@ static int hw_device_reset(void __iomem *base)
 	hw_bank.size += CAP_LAST;
 	hw_bank.size /= sizeof(u32);
 
+	reg = hw_aread(ABS_DCCPARAMS, DCCPARAMS_DEN) >> ffs_nr(DCCPARAMS_DEN);
+	if (reg == 0 || reg > ENDPT_MAX)
+		return -ENODEV;
+
+	hw_ep_max = reg;   /* cache hw ENDPT_MAX */
+
+	/* setup lock mode ? */
+
+	/* ENDPTSETUPSTAT is '0' by default */
+
+	/* HCSPARAMS.bf.ppc SHOULD BE zero for device */
+
+	return 0;
+}
+/**
+ * hw_device_reset: resets chip (execute without interruption)
+ * @base: register base address
+ *
+ * This function returns an error code
+ */
+static int hw_device_reset(struct ci13xxx *udc)
+{
 	/* should flush & stop before reset */
 	hw_cwrite(CAP_ENDPTFLUSH, ~0, ~0);
 	hw_cwrite(CAP_USBCMD, USBCMD_RS, 0);
@@ -279,6 +294,14 @@ static int hw_device_reset(void __iomem *base)
 	while (hw_cread(CAP_USBCMD, USBCMD_RST))
 		udelay(10);             /* not RTOS friendly */
 
+
+	if (udc->udc_driver->notify_event)
+		udc->udc_driver->notify_event(udc,
+			CI13XXX_CONTROLLER_RESET_EVENT);
+
+	if (udc->udc_driver->flags && CI13XXX_DISABLE_STREAMING)
+		hw_cwrite(CAP_USBMODE, USBMODE_SDIS, USBMODE_SDIS);
+
 	/* USBMODE should be configured step by step */
 	hw_cwrite(CAP_USBMODE, USBMODE_CM, USBMODE_CM_IDLE);
 	hw_cwrite(CAP_USBMODE, USBMODE_CM, USBMODE_CM_DEVICE);
@@ -290,18 +313,6 @@ static int hw_device_reset(void __iomem *base)
 		return -ENODEV;
 	}
 
-	reg = hw_aread(ABS_DCCPARAMS, DCCPARAMS_DEN) >> ffs_nr(DCCPARAMS_DEN);
-	if (reg == 0 || reg > ENDPT_MAX)
-		return -ENODEV;
-
-	hw_ep_max = reg;   /* cache hw ENDPT_MAX */
-
-	/* setup lock mode ? */
-
-	/* ENDPTSETUPSTAT is '0' by default */
-
-	/* HCSPARAMS.bf.ppc SHOULD BE zero for device */
-
 	return 0;
 }
 
@@ -1449,7 +1460,7 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq)
 	mReq->ptr->page[0]  = mReq->req.dma;
 	for (i = 1; i < 5; i++)
 		mReq->ptr->page[i] =
-			(mReq->req.dma + i * PAGE_SIZE) & ~TD_RESERVED_MASK;
+			(mReq->req.dma + i * CI13XXX_PAGE_SIZE) & ~TD_RESERVED_MASK;
 
 	/*
 	 *  QH configuration
@@ -1540,7 +1551,7 @@ __acquires(mEp->lock)
 		list_del_init(&mReq->queue);
 		mReq->req.status = -ESHUTDOWN;
 
-		if (!mReq->req.no_interrupt && mReq->req.complete != NULL) {
+		if (mReq->req.complete != NULL) {
 			spin_unlock(mEp->lock);
 			mReq->req.complete(&mEp->ep, &mReq->req);
 			spin_lock(mEp->lock);
@@ -1557,8 +1568,6 @@ __acquires(mEp->lock)
  * Caller must hold lock
  */
 static int _gadget_stop_activity(struct usb_gadget *gadget)
-__releases(udc->lock)
-__acquires(udc->lock)
 {
 	struct usb_ep *ep;
 	struct ci13xxx    *udc = container_of(gadget, struct ci13xxx, gadget);
@@ -1570,8 +1579,6 @@ __acquires(udc->lock)
 	if (gadget == NULL)
 		return -EINVAL;
 
-	spin_unlock(udc->lock);
-
 	/* flush all endpoints */
 	gadget_for_each_ep(ep, gadget) {
 		usb_ep_fifo_flush(ep);
@@ -1591,8 +1598,6 @@ __acquires(udc->lock)
 		mEp->status = NULL;
 	}
 
-	spin_lock(udc->lock);
-
 	return 0;
 }
 
@@ -1621,6 +1626,7 @@ __acquires(udc->lock)
 
 	dbg_event(0xFF, "BUS RST", 0);
 
+	spin_unlock(udc->lock);
 	retval = _gadget_stop_activity(&udc->gadget);
 	if (retval)
 		goto done;
@@ -1629,10 +1635,9 @@ __acquires(udc->lock)
 	if (retval)
 		goto done;
 
-	spin_unlock(udc->lock);
 	retval = usb_ep_enable(&mEp->ep, &ctrl_endpt_desc);
 	if (!retval) {
-		mEp->status = usb_ep_alloc_request(&mEp->ep, GFP_KERNEL);
+		mEp->status = usb_ep_alloc_request(&mEp->ep, GFP_ATOMIC);
 		if (mEp->status == NULL) {
 			usb_ep_disable(&mEp->ep);
 			retval = -ENOMEM;
@@ -1789,18 +1794,20 @@ __acquires(mEp->lock)
 
 	dbg_done(_usb_addr(mEp), mReq->ptr->token, retval);
 
-	if (!mReq->req.no_interrupt && mReq->req.complete != NULL) {
+	if (!list_empty(&mEp->qh[mEp->dir].queue)) {
+		struct ci13xxx_req* mReqEnq;
+
+		mReqEnq = list_entry(mEp->qh[mEp->dir].queue.next,
+				  struct ci13xxx_req, queue);
+		_hardware_enqueue(mEp, mReqEnq);
+	}
+
+	if (mReq->req.complete != NULL) {
 		spin_unlock(mEp->lock);
 		mReq->req.complete(&mEp->ep, &mReq->req);
 		spin_lock(mEp->lock);
 	}
 
-	if (!list_empty(&mEp->qh[mEp->dir].queue)) {
-		mReq = list_entry(mEp->qh[mEp->dir].queue.next,
-				  struct ci13xxx_req, queue);
-		_hardware_enqueue(mEp, mReq);
-	}
-
  done:
 	return retval;
 }
@@ -2061,7 +2068,6 @@ static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 {
 	struct ci13xxx_ep  *mEp  = container_of(ep, struct ci13xxx_ep, ep);
 	struct ci13xxx_req *mReq = NULL;
-	unsigned long flags;
 
 	trace("%p, %i", ep, gfp_flags);
 
@@ -2070,8 +2076,6 @@ static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 		return NULL;
 	}
 
-	spin_lock_irqsave(mEp->lock, flags);
-
 	mReq = kzalloc(sizeof(struct ci13xxx_req), gfp_flags);
 	if (mReq != NULL) {
 		INIT_LIST_HEAD(&mReq->queue);
@@ -2086,8 +2090,6 @@ static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 
 	dbg_event(_usb_addr(mEp), "ALLOC", mReq == NULL);
 
-	spin_unlock_irqrestore(mEp->lock, flags);
-
 	return (mReq == NULL) ? NULL : &mReq->req;
 }
 
@@ -2157,8 +2159,8 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req,
 		goto done;
 	}
 
-	if (req->length > (4 * PAGE_SIZE)) {
-		req->length = (4 * PAGE_SIZE);
+	if (req->length > (4 * CI13XXX_PAGE_SIZE)) {
+		req->length = (4 * CI13XXX_PAGE_SIZE);
 		retval = -EMSGSIZE;
 		warn("request length truncated");
 	}
@@ -2170,8 +2172,10 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req,
 	mReq->req.actual = 0;
 	list_add_tail(&mReq->queue, &mEp->qh[mEp->dir].queue);
 
-	retval = _hardware_enqueue(mEp, mReq);
-	if (retval == -EALREADY || retval == -EBUSY) {
+	if (list_is_singular(&mEp->qh[mEp->dir].queue))
+		retval = _hardware_enqueue(mEp, mReq);
+
+	if (retval == -EALREADY) {
 		dbg_event(_usb_addr(mEp), "QUEUE", retval);
 		retval = 0;
 	}
@@ -2209,7 +2213,7 @@ static int ep_dequeue(struct usb_ep *ep, struct usb_request *req)
 	list_del_init(&mReq->queue);
 	req->status = -ECONNRESET;
 
-	if (!mReq->req.no_interrupt && mReq->req.complete != NULL) {
+	if (mReq->req.complete != NULL) {
 		spin_unlock(mEp->lock);
 		mReq->req.complete(&mEp->ep, &mReq->req);
 		spin_lock(mEp->lock);
@@ -2332,12 +2336,47 @@ static const struct usb_ep_ops usb_ep_ops = {
 /******************************************************************************
  * GADGET block
  *****************************************************************************/
+static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active)
+{
+	struct ci13xxx *udc = container_of(_gadget, struct ci13xxx, gadget);
+	unsigned long flags;
+	int gadget_ready = 0;
+
+	if (!(udc->udc_driver->flags & CI13XXX_PULLUP_ON_VBUS))
+		return -EOPNOTSUPP;
+
+	spin_lock_irqsave(udc->lock, flags);
+	udc->vbus_active = is_active;
+	if (udc->driver)
+		gadget_ready = 1;
+	spin_unlock_irqrestore(udc->lock, flags);
+
+	if (gadget_ready) {
+		if (is_active) {
+			pm_runtime_get_sync(&_gadget->dev);
+			hw_device_reset(udc);
+			hw_device_state(udc->ci13xxx_ep[0].qh[RX].dma);
+		} else {
+			hw_device_state(0);
+			if (udc->udc_driver->notify_event)
+				udc->udc_driver->notify_event(udc,
+				CI13XXX_CONTROLLER_STOPPED_EVENT);
+			_gadget_stop_activity(&udc->gadget);
+			pm_runtime_put_sync(&_gadget->dev);
+		}
+	}
+
+	return 0;
+}
+
 /**
  * Device operations part of the API to the USB controller hardware,
  * which don't involve endpoints (or i/o)
  * Check  "usb_gadget.h" for details
  */
-static const struct usb_gadget_ops usb_gadget_ops;
+static const struct usb_gadget_ops usb_gadget_ops = {
+	.vbus_session	= ci13xxx_vbus_session,
+};
 
 /**
  * usb_gadget_probe_driver: register a gadget driver
@@ -2358,7 +2397,6 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
 
 	if (driver             == NULL ||
 	    bind               == NULL ||
-	    driver->unbind     == NULL ||
 	    driver->setup      == NULL ||
 	    driver->disconnect == NULL ||
 	    driver->suspend    == NULL ||
@@ -2372,13 +2410,13 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
 	/* alloc resources */
 	udc->qh_pool = dma_pool_create("ci13xxx_qh", &udc->gadget.dev,
 				       sizeof(struct ci13xxx_qh),
-				       64, PAGE_SIZE);
+				       64, CI13XXX_PAGE_SIZE);
 	if (udc->qh_pool == NULL)
 		return -ENOMEM;
 
 	udc->td_pool = dma_pool_create("ci13xxx_td", &udc->gadget.dev,
 				       sizeof(struct ci13xxx_td),
-				       64, PAGE_SIZE);
+				       64, CI13XXX_PAGE_SIZE);
 	if (udc->td_pool == NULL) {
 		dma_pool_destroy(udc->qh_pool);
 		udc->qh_pool = NULL;
@@ -2390,7 +2428,6 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
 	info("hw_ep_max = %d", hw_ep_max);