USB / PHY driver fixes for 4.0-rc5

Here's a number of USB and PHY driver fixes for 4.0-rc5.  Largest thing
 here is a revert of a gadget function driver patch that removes 500
 lines of code.  Other than that, it's a number of reported bugs fixes
 and new quirk/id entries.
 
 All have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / PHY driver fixes from Greg KH:
 "Here's a number of USB and PHY driver fixes for 4.0-rc5.

  The largest thing here is a revert of a gadget function driver patch
  that removes 500 lines of code.  Other than that, it's a number of
  reported bugs fixes and new quirk/id entries.

  All have been in linux-next for a while"

* tag 'usb-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
  usb: common: otg-fsm: only signal connect after switching to peripheral
  uas: Add US_FL_NO_ATA_1X for Initio Corporation controllers / devices
  USB: ehci-atmel: rework clk handling
  MAINTAINERS: add entry for USB OTG FSM
  usb: chipidea: otg: add a_alt_hnp_support response for B device
  phy: omap-usb2: Fix missing clk_prepare call when using old dt name
  phy: ti/omap: Fix modalias
  phy: core: Fixup return value of phy_exit when !pm_runtime_enabled
  phy: miphy28lp: Convert to devm_kcalloc and fix wrong sizof
  phy: miphy365x: Convert to devm_kcalloc and fix wrong sizeof
  phy: twl4030-usb: Remove redundant assignment for twl->linkstat
  phy: exynos5-usbdrd: Fix off-by-one valid value checking for args->args[0]
  phy: Find the right match in devm_phy_destroy()
  phy: rockchip-usb: Fixup rockchip_usb_phy_power_on failure path
  phy: ti-pipe3: Simplify ti_pipe3_dpll_wait_lock implementation
  phy: samsung-usb2: Remove NULL terminating entry from phys array
  phy: hix5hd2-sata: Check return value of platform_get_resource
  phy: exynos-dp-video: Kill exynos_dp_video_phy_pwr_isol function
  Revert "usb: gadget: zero: Add support for interrupt EP"
  Revert "xhci: Clear the host side toggle manually when endpoint is 'soft reset'"
  ...

MAINTAINERS

@@ -10207,6 +10207,13 @@ S:	Maintained
 F:	Documentation/usb/ohci.txt
 F:	drivers/usb/host/ohci*
 
+USB OTG FSM (Finite State Machine)
+M:	Peter Chen <Peter.Chen@freescale.com>
+T:	git git://github.com/hzpeterchen/linux-usb.git
+L:	linux-usb@vger.kernel.org
+S:	Maintained
+F:	drivers/usb/common/usb-otg-fsm.c
+
 USB OVER IP DRIVER
 M:	Valentina Manea <valentina.manea.m@gmail.com>
 M:	Shuah Khan <shuah.kh@samsung.com>

drivers/phy/phy-armada375-usb2.c

@@ -37,7 +37,7 @@ static int armada375_usb_phy_init(struct phy *phy)
 	struct armada375_cluster_phy *cluster_phy;
 	u32 reg;
 
-	cluster_phy = dev_get_drvdata(phy->dev.parent);
+	cluster_phy = phy_get_drvdata(phy);
 	if (!cluster_phy)
 		return -ENODEV;
 
@@ -131,6 +131,7 @@ static int armada375_usb_phy_probe(struct platform_device *pdev)
 	cluster_phy->reg = usb_cluster_base;
 
 	dev_set_drvdata(dev, cluster_phy);
+	phy_set_drvdata(phy, cluster_phy);
 
 	phy_provider = devm_of_phy_provider_register(&pdev->dev,
 						     armada375_usb_phy_xlate);

drivers/phy/phy-core.c

@@ -52,7 +52,9 @@ static void devm_phy_consume(struct device *dev, void *res)
 
 static int devm_phy_match(struct device *dev, void *res, void *match_data)
 {
-	return res == match_data;
+	struct phy **phy = res;
+
+	return *phy == match_data;
 }
 
 /**
@@ -223,6 +225,7 @@ int phy_init(struct phy *phy)
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
 		return ret;
+	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
 	if (phy->init_count == 0 && phy->ops->init) {
@@ -231,8 +234,6 @@ int phy_init(struct phy *phy)
 			dev_err(&phy->dev, "phy init failed --> %d\n", ret);
 			goto out;
 		}
-	} else {
-		ret = 0; /* Override possible ret == -ENOTSUPP */
 	}
 	++phy->init_count;
 
@@ -253,6 +254,7 @@ int phy_exit(struct phy *phy)
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
 		return ret;
+	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
 	if (phy->init_count == 1 && phy->ops->exit) {
@@ -287,6 +289,7 @@ int phy_power_on(struct phy *phy)
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
 		return ret;
+	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
 	if (phy->power_count == 0 && phy->ops->power_on) {
@@ -295,8 +298,6 @@ int phy_power_on(struct phy *phy)
 			dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);
 			goto out;
 		}
-	} else {
-		ret = 0; /* Override possible ret == -ENOTSUPP */
 	}
 	++phy->power_count;
 	mutex_unlock(&phy->mutex);

drivers/phy/phy-exynos-dp-video.c

@@ -30,28 +30,13 @@ struct exynos_dp_video_phy {
 	const struct exynos_dp_video_phy_drvdata *drvdata;
 };
 
-static void exynos_dp_video_phy_pwr_isol(struct exynos_dp_video_phy *state,
-							unsigned int on)
-{
-	unsigned int val;
-
-	if (IS_ERR(state->regs))
-		return;
-
-	val = on ? 0 : EXYNOS5_PHY_ENABLE;
-
-	regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
-			   EXYNOS5_PHY_ENABLE, val);
-}
-
 static int exynos_dp_video_phy_power_on(struct phy *phy)
 {
 	struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
 
 	/* Disable power isolation on DP-PHY */
-	exynos_dp_video_phy_pwr_isol(state, 0);
+	return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
-
+				  EXYNOS5_PHY_ENABLE, EXYNOS5_PHY_ENABLE);
-	return 0;
 }
 
 static int exynos_dp_video_phy_power_off(struct phy *phy)
@@ -59,9 +44,8 @@ static int exynos_dp_video_phy_power_off(struct phy *phy)
 	struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
 
 	/* Enable power isolation on DP-PHY */
-	exynos_dp_video_phy_pwr_isol(state, 1);
+	return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
-
+				  EXYNOS5_PHY_ENABLE, 0);
-	return 0;
 }
 
 static struct phy_ops exynos_dp_video_phy_ops = {

drivers/phy/phy-exynos-mipi-video.c

@@ -43,7 +43,6 @@ struct exynos_mipi_video_phy {
 	} phys[EXYNOS_MIPI_PHYS_NUM];
 	spinlock_t slock;
 	void __iomem *regs;
-	struct mutex mutex;
 	struct regmap *regmap;
 };
 
@@ -59,8 +58,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state,
 	else
 		reset = EXYNOS4_MIPI_PHY_SRESETN;
 
-	if (state->regmap) {
+	spin_lock(&state->slock);
-		mutex_lock(&state->mutex);
+
+	if (!IS_ERR(state->regmap)) {
 		regmap_read(state->regmap, offset, &val);
 		if (on)
 			val |= reset;
@@ -72,11 +72,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state,
 		else if (!(val & EXYNOS4_MIPI_PHY_RESET_MASK))
 			val &= ~EXYNOS4_MIPI_PHY_ENABLE;
 		regmap_write(state->regmap, offset, val);
-		mutex_unlock(&state->mutex);
 	} else {
 		addr = state->regs + EXYNOS_MIPI_PHY_CONTROL(id / 2);
 
-		spin_lock(&state->slock);
 		val = readl(addr);
 		if (on)
 			val |= reset;
@@ -90,9 +88,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state,
 			val &= ~EXYNOS4_MIPI_PHY_ENABLE;
 
 		writel(val, addr);
-		spin_unlock(&state->slock);
 	}
 
+	spin_unlock(&state->slock);
 	return 0;
 }
 
@@ -158,7 +156,6 @@ static int exynos_mipi_video_phy_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, state);
 	spin_lock_init(&state->slock);
-	mutex_init(&state->mutex);
 
 	for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) {
 		struct phy *phy = devm_phy_create(dev, NULL,

drivers/phy/phy-exynos4210-usb2.c

@@ -250,7 +250,6 @@ static const struct samsung_usb2_common_phy exynos4210_phys[] = {
 		.power_on	= exynos4210_power_on,
 		.power_off	= exynos4210_power_off,
 	},
-	{},
 };
 
 const struct samsung_usb2_phy_config exynos4210_usb2_phy_config = {

drivers/phy/phy-exynos4x12-usb2.c

@@ -361,7 +361,6 @@ static const struct samsung_usb2_common_phy exynos4x12_phys[] = {
 		.power_on	= exynos4x12_power_on,
 		.power_off	= exynos4x12_power_off,
 	},
-	{},
 };
 
 const struct samsung_usb2_phy_config exynos3250_usb2_phy_config = {

drivers/phy/phy-exynos5-usbdrd.c

@@ -531,7 +531,7 @@ static struct phy *exynos5_usbdrd_phy_xlate(struct device *dev,
 {
 	struct exynos5_usbdrd_phy *phy_drd = dev_get_drvdata(dev);
 
-	if (WARN_ON(args->args[0] > EXYNOS5_DRDPHYS_NUM))
+	if (WARN_ON(args->args[0] >= EXYNOS5_DRDPHYS_NUM))
 		return ERR_PTR(-ENODEV);
 
 	return phy_drd->phys[args->args[0]].phy;

drivers/phy/phy-exynos5250-usb2.c

@@ -391,7 +391,6 @@ static const struct samsung_usb2_common_phy exynos5250_phys[] = {
 		.power_on	= exynos5250_power_on,
 		.power_off	= exynos5250_power_off,
 	},
-	{},
 };
 
 const struct samsung_usb2_phy_config exynos5250_usb2_phy_config = {

drivers/phy/phy-hix5hd2-sata.c

@@ -147,6 +147,9 @@ static int hix5hd2_sata_phy_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
 	priv->base = devm_ioremap(dev, res->start, resource_size(res));
 	if (!priv->base)
 		return -ENOMEM;

drivers/phy/phy-miphy28lp.c

@@ -228,6 +228,7 @@ struct miphy28lp_dev {
 	struct regmap *regmap;
 	struct mutex miphy_mutex;
 	struct miphy28lp_phy **phys;
+	int nphys;
 };
 
 struct miphy_initval {
@@ -1116,7 +1117,7 @@ static struct phy *miphy28lp_xlate(struct device *dev,
 		return ERR_PTR(-EINVAL);
 	}
 
-	for (index = 0; index < of_get_child_count(dev->of_node); index++)
+	for (index = 0; index < miphy_dev->nphys; index++)
 		if (phynode == miphy_dev->phys[index]->phy->dev.of_node) {
 			miphy_phy = miphy_dev->phys[index];
 			break;
@@ -1138,6 +1139,7 @@ static struct phy *miphy28lp_xlate(struct device *dev,
 
 static struct phy_ops miphy28lp_ops = {
 	.init = miphy28lp_init,
+	.owner = THIS_MODULE,
 };
 
 static int miphy28lp_probe_resets(struct device_node *node,
@@ -1200,16 +1202,15 @@ static int miphy28lp_probe(struct platform_device *pdev)
 	struct miphy28lp_dev *miphy_dev;
 	struct phy_provider *provider;
 	struct phy *phy;
-	int chancount, port = 0;
+	int ret, port = 0;
-	int ret;
 
 	miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL);
 	if (!miphy_dev)
 		return -ENOMEM;
 
-	chancount = of_get_child_count(np);
+	miphy_dev->nphys = of_get_child_count(np);
-	miphy_dev->phys = devm_kzalloc(&pdev->dev, sizeof(phy) * chancount,
+	miphy_dev->phys = devm_kcalloc(&pdev->dev, miphy_dev->nphys,
-				       GFP_KERNEL);
+				       sizeof(*miphy_dev->phys), GFP_KERNEL);
 	if (!miphy_dev->phys)
 		return -ENOMEM;
 

drivers/phy/phy-miphy365x.c

@@ -150,6 +150,7 @@ struct miphy365x_dev {
 	struct regmap *regmap;
 	struct mutex miphy_mutex;
 	struct miphy365x_phy **phys;
+	int nphys;
 };
 
 /*
@@ -485,7 +486,7 @@ static struct phy *miphy365x_xlate(struct device *dev,
 		return ERR_PTR(-EINVAL);
 	}
 
-	for (index = 0; index < of_get_child_count(dev->of_node); index++)
+	for (index = 0; index < miphy_dev->nphys; index++)
 		if (phynode == miphy_dev->phys[index]->phy->dev.of_node) {
 			miphy_phy = miphy_dev->phys[index];
 			break;
@@ -541,16 +542,15 @@ static int miphy365x_probe(struct platform_device *pdev)
 	struct miphy365x_dev *miphy_dev;
 	struct phy_provider *provider;
 	struct phy *phy;
-	int chancount, port = 0;
+	int ret, port = 0;
-	int ret;
 
 	miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL);
 	if (!miphy_dev)
 		return -ENOMEM;
 
-	chancount = of_get_child_count(np);
+	miphy_dev->nphys = of_get_child_count(np);
-	miphy_dev->phys = devm_kzalloc(&pdev->dev, sizeof(phy) * chancount,
+	miphy_dev->phys = devm_kcalloc(&pdev->dev, miphy_dev->nphys,
-				       GFP_KERNEL);
+				       sizeof(*miphy_dev->phys), GFP_KERNEL);
 	if (!miphy_dev->phys)
 		return -ENOMEM;
 

drivers/phy/phy-omap-control.c

@@ -360,7 +360,7 @@ static void __exit omap_control_phy_exit(void)
 }
 module_exit(omap_control_phy_exit);
 
-MODULE_ALIAS("platform: omap_control_phy");
+MODULE_ALIAS("platform:omap_control_phy");
 MODULE_AUTHOR("Texas Instruments Inc.");
 MODULE_DESCRIPTION("OMAP Control Module PHY Driver");
 MODULE_LICENSE("GPL v2");

drivers/phy/phy-omap-usb2.c

@@ -296,10 +296,11 @@ static int omap_usb2_probe(struct platform_device *pdev)
 			dev_warn(&pdev->dev,
 				 "found usb_otg_ss_refclk960m, please fix DTS\n");
 		}
-	} else {
-		clk_prepare(phy->optclk);
 	}
 
+	if (!IS_ERR(phy->optclk))
+		clk_prepare(phy->optclk);
+
 	usb_add_phy_dev(&phy->phy);
 
 	return 0;
@@ -383,7 +384,7 @@ static struct platform_driver omap_usb2_driver = {
 
 module_platform_driver(omap_usb2_driver);
 
-MODULE_ALIAS("platform: omap_usb2");
+MODULE_ALIAS("platform:omap_usb2");
 MODULE_AUTHOR("Texas Instruments Inc.");
 MODULE_DESCRIPTION("OMAP USB2 phy driver");
 MODULE_LICENSE("GPL v2");

drivers/phy/phy-rockchip-usb.c

@@ -61,8 +61,6 @@ static int rockchip_usb_phy_power_off(struct phy *_phy)
 		return ret;
 
 	clk_disable_unprepare(phy->clk);
-	if (ret)
-		return ret;
 
 	return 0;
 }
@@ -78,8 +76,10 @@ static int rockchip_usb_phy_power_on(struct phy *_phy)
 
 	/* Power up usb phy analog blocks by set siddq 0 */
 	ret = rockchip_usb_phy_power(phy, 0);
-	if (ret)
+	if (ret) {
+		clk_disable_unprepare(phy->clk);
 		return ret;
+	}
 
 	return 0;
 }

drivers/phy/phy-ti-pipe3.c

@@ -165,15 +165,11 @@ static int ti_pipe3_dpll_wait_lock(struct ti_pipe3 *phy)
 		cpu_relax();
 		val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
 		if (val & PLL_LOCK)
-			break;
+			return 0;
 	} while (!time_after(jiffies, timeout));
 
-	if (!(val & PLL_LOCK)) {
+	dev_err(phy->dev, "DPLL failed to lock\n");
-		dev_err(phy->dev, "DPLL failed to lock\n");
+	return -EBUSY;
-		return -EBUSY;
-	}
-
-	return 0;
 }
 
 static int ti_pipe3_dpll_program(struct ti_pipe3 *phy)
@@ -608,7 +604,7 @@ static struct platform_driver ti_pipe3_driver = {
 
 module_platform_driver(ti_pipe3_driver);
 
-MODULE_ALIAS("platform: ti_pipe3");
+MODULE_ALIAS("platform:ti_pipe3");
 MODULE_AUTHOR("Texas Instruments Inc.");
 MODULE_DESCRIPTION("TI PIPE3 phy driver");
 MODULE_LICENSE("GPL v2");

drivers/phy/phy-twl4030-usb.c

@@ -666,7 +666,6 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 	twl->dev		= &pdev->dev;
 	twl->irq		= platform_get_irq(pdev, 0);
 	twl->vbus_supplied	= false;
-	twl->linkstat		= -EINVAL;
 	twl->linkstat		= OMAP_MUSB_UNKNOWN;
 
 	twl->phy.dev		= twl->dev;

drivers/phy/phy-xgene.c

@@ -1704,7 +1704,6 @@ static int xgene_phy_probe(struct platform_device *pdev)
 	for (i = 0; i < MAX_LANE; i++)
 		ctx->sata_param.speed[i] = 2; /* Default to Gen3 */
 
-	ctx->dev = &pdev->dev;
 	platform_set_drvdata(pdev, ctx);
 
 	ctx->phy = devm_phy_create(ctx->dev, NULL, &xgene_phy_ops);

drivers/usb/chipidea/udc.c

@@ -929,6 +929,13 @@ __acquires(hwep->lock)
 	return retval;
 }
 
+static int otg_a_alt_hnp_support(struct ci_hdrc *ci)
+{
+	dev_warn(&ci->gadget.dev,
+		"connect the device to an alternate port if you want HNP\n");
+	return isr_setup_status_phase(ci);
+}
+
 /**
  * isr_setup_packet_handler: setup packet handler
  * @ci: UDC descriptor
@@ -1061,6 +1068,10 @@ __acquires(ci->lock)
 							ci);
 				}
 				break;
+			case USB_DEVICE_A_ALT_HNP_SUPPORT:
+				if (ci_otg_is_fsm_mode(ci))
+					err = otg_a_alt_hnp_support(ci);
+				break;
 			default:
 				goto delegate;
 			}

drivers/usb/common/usb-otg-fsm.c

@@ -150,9 +150,9 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		break;
 	case OTG_STATE_B_PERIPHERAL:
 		otg_chrg_vbus(fsm, 0);
-		otg_loc_conn(fsm, 1);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_GADGET);
+		otg_loc_conn(fsm, 1);
 		break;
 	case OTG_STATE_B_WAIT_ACON:
 		otg_chrg_vbus(fsm, 0);
@@ -213,10 +213,10 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 
 		break;
 	case OTG_STATE_A_PERIPHERAL:
-		otg_loc_conn(fsm, 1);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_GADGET);
 		otg_drv_vbus(fsm, 1);
+		otg_loc_conn(fsm, 1);
 		otg_add_timer(fsm, A_BIDL_ADIS);
 		break;
 	case OTG_STATE_A_WAIT_VFALL:

drivers/usb/dwc2/core_intr.c

@@ -377,6 +377,9 @@ static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg)
 		dwc2_is_host_mode(hsotg) ? "Host" : "Device",
 		dwc2_op_state_str(hsotg));
 
+	if (hsotg->op_state == OTG_STATE_A_HOST)
+		dwc2_hcd_disconnect(hsotg);
+
 	/* Change to L3 (OFF) state */
 	hsotg->lx_state = DWC2_L3;
 

drivers/usb/gadget/function/f_loopback.c

@@ -289,8 +289,7 @@ static void disable_loopback(struct f_loopback *loop)
 	struct usb_composite_dev	*cdev;
 
 	cdev = loop->function.config->cdev;
-	disable_endpoints(cdev, loop->in_ep, loop->out_ep, NULL, NULL, NULL,
+	disable_endpoints(cdev, loop->in_ep, loop->out_ep, NULL, NULL);
-			NULL);
 	VDBG(cdev, "%s disabled\n", loop->function.name);
 }
 

drivers/usb/gadget/function/f_sourcesink.c

@@ -23,15 +23,6 @@
 #include "gadget_chips.h"
 #include "u_f.h"
 
-#define USB_MS_TO_SS_INTERVAL(x) USB_MS_TO_HS_INTERVAL(x)
-
-enum eptype {
-	EP_CONTROL = 0,
-	EP_BULK,
-	EP_ISOC,
-	EP_INTERRUPT,
-};
-
 /*
  * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral
  * controller drivers.
@@ -64,8 +55,6 @@ struct f_sourcesink {
 	struct usb_ep		*out_ep;
 	struct usb_ep		*iso_in_ep;
 	struct usb_ep		*iso_out_ep;
-	struct usb_ep		*int_in_ep;
-	struct usb_ep		*int_out_ep;
 	int			cur_alt;
 };
 
@@ -79,10 +68,6 @@ static unsigned isoc_interval;
 static unsigned isoc_maxpacket;
 static unsigned isoc_mult;
 static unsigned isoc_maxburst;
-static unsigned int_interval; /* In ms */
-static unsigned int_maxpacket;
-static unsigned int_mult;
-static unsigned int_maxburst;
 static unsigned buflen;
 
 /*-------------------------------------------------------------------------*/
@@ -107,16 +92,6 @@ static struct usb_interface_descriptor source_sink_intf_alt1 = {
 	/* .iInterface		= DYNAMIC */
 };
 
-static struct usb_interface_descriptor source_sink_intf_alt2 = {
-	.bLength =		USB_DT_INTERFACE_SIZE,
-	.bDescriptorType =	USB_DT_INTERFACE,
-
-	.bAlternateSetting =	2,
-	.bNumEndpoints =	2,
-	.bInterfaceClass =	USB_CLASS_VENDOR_SPEC,
-	/* .iInterface		= DYNAMIC */
-};
-
 /* full speed support: */
 
 static struct usb_endpoint_descriptor fs_source_desc = {
@@ -155,26 +130,6 @@ static struct usb_endpoint_descriptor fs_iso_sink_desc = {
 	.bInterval =		4,
 };
 
-static struct usb_endpoint_descriptor fs_int_source_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bEndpointAddress =	USB_DIR_IN,
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(64),
-	.bInterval =		GZERO_INT_INTERVAL,
-};
-
-static struct usb_endpoint_descriptor fs_int_sink_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bEndpointAddress =	USB_DIR_OUT,
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(64),
-	.bInterval =		GZERO_INT_INTERVAL,
-};
-
 static struct usb_descriptor_header *fs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &source_sink_intf_alt0,
 	(struct usb_descriptor_header *) &fs_sink_desc,
@@ -185,10 +140,6 @@ static struct usb_descriptor_header *fs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &fs_source_desc,
 	(struct usb_descriptor_header *) &fs_iso_sink_desc,
 	(struct usb_descriptor_header *) &fs_iso_source_desc,
-	(struct usb_descriptor_header *) &source_sink_intf_alt2,
-#define FS_ALT_IFC_2_OFFSET	8
-	(struct usb_descriptor_header *) &fs_int_sink_desc,
-	(struct usb_descriptor_header *) &fs_int_source_desc,
 	NULL,
 };
 
@@ -228,24 +179,6 @@ static struct usb_endpoint_descriptor hs_iso_sink_desc = {
 	.bInterval =		4,
 };
 
-static struct usb_endpoint_descriptor hs_int_source_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_HS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
-static struct usb_endpoint_descriptor hs_int_sink_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_HS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
 static struct usb_descriptor_header *hs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &source_sink_intf_alt0,
 	(struct usb_descriptor_header *) &hs_source_desc,
@@ -256,10 +189,6 @@ static struct usb_descriptor_header *hs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &hs_sink_desc,
 	(struct usb_descriptor_header *) &hs_iso_source_desc,
 	(struct usb_descriptor_header *) &hs_iso_sink_desc,
-	(struct usb_descriptor_header *) &source_sink_intf_alt2,
-#define HS_ALT_IFC_2_OFFSET	8
-	(struct usb_descriptor_header *) &hs_int_source_desc,
-	(struct usb_descriptor_header *) &hs_int_sink_desc,
 	NULL,
 };
 
@@ -335,42 +264,6 @@ static struct usb_ss_ep_comp_descriptor ss_iso_sink_comp_desc = {
 	.wBytesPerInterval =	cpu_to_le16(1024),
 };
 
-static struct usb_endpoint_descriptor ss_int_source_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_SS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
-static struct usb_ss_ep_comp_descriptor ss_int_source_comp_desc = {
-	.bLength =		USB_DT_SS_EP_COMP_SIZE,
-	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
-
-	.bMaxBurst =		0,
-	.bmAttributes =		0,
-	.wBytesPerInterval =	cpu_to_le16(1024),
-};
-
-static struct usb_endpoint_descriptor ss_int_sink_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_SS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
-static struct usb_ss_ep_comp_descriptor ss_int_sink_comp_desc = {
-	.bLength =		USB_DT_SS_EP_COMP_SIZE,
-	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
-
-	.bMaxBurst =		0,
-	.bmAttributes =		0,
-	.wBytesPerInterval =	cpu_to_le16(1024),
-};
-
 static struct usb_descriptor_header *ss_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &source_sink_intf_alt0,
 	(struct usb_descriptor_header *) &ss_source_desc,
@@ -387,12 +280,6 @@ static struct usb_descriptor_header *ss_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &ss_iso_source_comp_desc,
 	(struct usb_descriptor_header *) &ss_iso_sink_desc,
 	(struct usb_descriptor_header *) &ss_iso_sink_comp_desc,
-	(struct usb_descriptor_header *) &source_sink_intf_alt2,
-#define SS_ALT_IFC_2_OFFSET	14
-	(struct usb_descriptor_header *) &ss_int_source_desc,
-	(struct usb_descriptor_header *) &ss_int_source_comp_desc,
-	(struct usb_descriptor_header *) &ss_int_sink_desc,
-	(struct usb_descriptor_header *) &ss_int_sink_comp_desc,
 	NULL,
 };
 
@@ -414,21 +301,6 @@ static struct usb_gadget_strings *sourcesink_strings[] = {
 };
 
 /*-------------------------------------------------------------------------*/
-static const char *get_ep_string(enum eptype ep_type)
-{
-	switch (ep_type) {
-	case EP_ISOC:
-		return "ISOC-";
-	case EP_INTERRUPT:
-		return "INTERRUPT-";
-	case EP_CONTROL:
-		return "CTRL-";
-	case EP_BULK:
-		return "BULK-";
-	default:
-		return "UNKNOWN-";
-	}
-}
 
 static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len)
 {
@@ -456,8 +328,7 @@ static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep)
 
 void disable_endpoints(struct usb_composite_dev *cdev,
 		struct usb_ep *in, struct usb_ep *out,
-		struct usb_ep *iso_in, struct usb_ep *iso_out,
+		struct usb_ep *iso_in, struct usb_ep *iso_out)
-		struct usb_ep *int_in, struct usb_ep *int_out)
 {
 	disable_ep(cdev, in);
 	disable_ep(cdev, out);
@@ -465,10 +336,6 @@ void disable_endpoints(struct usb_composite_dev *cdev,
 		disable_ep(cdev, iso_in);
 	if (iso_out)
 		disable_ep(cdev, iso_out);
-	if (int_in)
-		disable_ep(cdev, int_in);
-	if (int_out)
-		disable_ep(cdev, int_out);
 }
 
 static int
@@ -485,7 +352,6 @@ sourcesink_bind(struct usb_configuration *c, struct usb_function *f)
 		return id;
 	source_sink_intf_alt0.bInterfaceNumber = id;
 	source_sink_intf_alt1.bInterfaceNumber = id;
-	source_sink_intf_alt2.bInterfaceNumber = id;
 
 	/* allocate bulk endpoints */
 	ss->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc);
@@ -546,55 +412,14 @@ no_iso:
 	if (isoc_maxpacket > 1024)
 		isoc_maxpacket = 1024;
 
-	/* sanity check the interrupt module parameters */
-	if (int_interval < 1)
-		int_interval = 1;
-	if (int_interval > 4096)
-		int_interval = 4096;
-	if (int_mult > 2)
-		int_mult = 2;
-	if (int_maxburst > 15)
-		int_maxburst = 15;
-
-	/* fill in the FS interrupt descriptors from the module parameters */
-	fs_int_source_desc.wMaxPacketSize = int_maxpacket > 64 ?
-						64 : int_maxpacket;
-	fs_int_source_desc.bInterval = int_interval > 255 ?
-						255 : int_interval;
-	fs_int_sink_desc.wMaxPacketSize = int_maxpacket > 64 ?
-						64 : int_maxpacket;
-	fs_int_sink_desc.bInterval = int_interval > 255 ?
-						255 : int_interval;
-
-	/* allocate int endpoints */
-	ss->int_in_ep = usb_ep_autoconfig(cdev->gadget, &fs_int_source_desc);
-	if (!ss->int_in_ep)
-		goto no_int;
-	ss->int_in_ep->driver_data = cdev;	/* claim */
-
-	ss->int_out_ep = usb_ep_autoconfig(cdev->gadget, &fs_int_sink_desc);
-	if (ss->int_out_ep) {
-		ss->int_out_ep->driver_data = cdev;	/* claim */
-	} else {
-		ss->int_in_ep->driver_data = NULL;
-		ss->int_in_ep = NULL;
-no_int:
-		fs_source_sink_descs[FS_ALT_IFC_2_OFFSET] = NULL;
-		hs_source_sink_descs[HS_ALT_IFC_2_OFFSET] = NULL;
-		ss_source_sink_descs[SS_ALT_IFC_2_OFFSET] = NULL;
-	}
-
-	if (int_maxpacket > 1024)
-		int_maxpacket = 1024;
-
 	/* support high speed hardware */
 	hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress;
 	hs_sink_desc.bEndpointAddress = fs_sink_desc.bEndpointAddress;
 
 	/*
-	 * Fill in the HS isoc and interrupt descriptors from the module
+	 * Fill in the HS isoc descriptors from the module parameters.
-	 * parameters. We assume that the user knows what they are doing and
+	 * We assume that the user knows what they are doing and won't
-	 * won't give parameters that their UDC doesn't support.
+	 * give parameters that their UDC doesn't support.
 	 */
 	hs_iso_source_desc.wMaxPacketSize = isoc_maxpacket;
 	hs_iso_source_desc.wMaxPacketSize |= isoc_mult << 11;
@@ -607,17 +432,6 @@ no_int:
 	hs_iso_sink_desc.bInterval = isoc_interval;
 	hs_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress;
 
-	hs_int_source_desc.wMaxPacketSize = int_maxpacket;
-	hs_int_source_desc.wMaxPacketSize |= int_mult << 11;
-	hs_int_source_desc.bInterval = USB_MS_TO_HS_INTERVAL(int_interval);
-	hs_int_source_desc.bEndpointAddress =
-		fs_int_source_desc.bEndpointAddress;
-
-	hs_int_sink_desc.wMaxPacketSize = int_maxpacket;
-	hs_int_sink_desc.wMaxPacketSize |= int_mult << 11;
-	hs_int_sink_desc.bInterval = USB_MS_TO_HS_INTERVAL(int_interval);
-	hs_int_sink_desc.bEndpointAddress = fs_int_sink_desc.bEndpointAddress;
-
 	/* support super speed hardware */
 	ss_source_desc.bEndpointAddress =
 		fs_source_desc.bEndpointAddress;
@@ -625,9 +439,9 @@ no_int:
 		fs_sink_desc.bEndpointAddress;
 
 	/*
-	 * Fill in the SS isoc and interrupt descriptors from the module
+	 * Fill in the SS isoc descriptors from the module parameters.
-	 * parameters. We assume that the user knows what they are doing and
+	 * We assume that the user knows what they are doing and won't
-	 * won't give parameters that their UDC doesn't support.
+	 * give parameters that their UDC doesn't support.
 	 */
 	ss_iso_source_desc.wMaxPacketSize = isoc_maxpacket;
 	ss_iso_source_desc.bInterval = isoc_interval;
@@ -646,37 +460,17 @@ no_int:
 		isoc_maxpacket * (isoc_mult + 1) * (isoc_maxburst + 1);
 	ss_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress;
 
-	ss_int_source_desc.wMaxPacketSize = int_maxpacket;
-	ss_int_source_desc.bInterval = USB_MS_TO_SS_INTERVAL(int_interval);
-	ss_int_source_comp_desc.bmAttributes = int_mult;
-	ss_int_source_comp_desc.bMaxBurst = int_maxburst;
-	ss_int_source_comp_desc.wBytesPerInterval =
-		int_maxpacket * (int_mult + 1) * (int_maxburst + 1);
-	ss_int_source_desc.bEndpointAddress =
-		fs_int_source_desc.bEndpointAddress;
-
-	ss_int_sink_desc.wMaxPacketSize = int_maxpacket;
-	ss_int_sink_desc.bInterval = USB_MS_TO_SS_INTERVAL(int_interval);
-	ss_int_sink_comp_desc.bmAttributes = int_mult;
-	ss_int_sink_comp_desc.bMaxBurst = int_maxburst;
-	ss_int_sink_comp_desc.wBytesPerInterval =
-		int_maxpacket * (int_mult + 1) * (int_maxburst + 1);
-	ss_int_sink_desc.bEndpointAddress = fs_int_sink_desc.bEndpointAddress;
-
 	ret = usb_assign_descriptors(f, fs_source_sink_descs,
 			hs_source_sink_descs, ss_source_sink_descs);
 	if (ret)
 		return ret;
 
-	DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s, "
+	DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s\n",
-			"INT-IN/%s, INT-OUT/%s\n",
 	    (gadget_is_superspeed(c->cdev->gadget) ? "super" :
 	     (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")),
 			f->name, ss->in_ep->name, ss->out_ep->name,
 			ss->iso_in_ep ? ss->iso_in_ep->name : "<none>",
-			ss->iso_out_ep ? ss->iso_out_ep->name : "<none>",
+			ss->iso_out_ep ? ss->iso_out_ep->name : "<none>");
-			ss->int_in_ep ? ss->int_in_ep->name : "<none>",
-			ss->int_out_ep ? ss->int_out_ep->name : "<none>");
 	return 0;
 }
 
@@ -807,15 +601,14 @@ static void source_sink_complete(struct usb_ep *ep, struct usb_request *req)
 }
 
 static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
-		enum eptype ep_type, int speed)
+		bool is_iso, int speed)
 {
 	struct usb_ep		*ep;
 	struct usb_request	*req;
 	int			i, size, status;
 
 	for (i = 0; i < 8; i++) {
-		switch (ep_type) {
+		if (is_iso) {
-		case EP_ISOC:
 			switch (speed) {
 			case USB_SPEED_SUPER:
 				size = isoc_maxpacket * (isoc_mult + 1) *
@@ -831,28 +624,9 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 			}
 			ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
 			req = ss_alloc_ep_req(ep, size);
-			break;
+		} else {
-		case EP_INTERRUPT:
-			switch (speed) {
-			case USB_SPEED_SUPER:
-				size = int_maxpacket * (int_mult + 1) *
-						(int_maxburst + 1);
-				break;
-			case USB_SPEED_HIGH:
-				size = int_maxpacket * (int_mult + 1);
-				break;
-			default:
-				size = int_maxpacket > 1023 ?
-						1023 : int_maxpacket;
-				break;
-			}
-			ep = is_in ? ss->int_in_ep : ss->int_out_ep;
-			req = ss_alloc_ep_req(ep, size);
-			break;
-		default:
 			ep = is_in ? ss->in_ep : ss->out_ep;
 			req = ss_alloc_ep_req(ep, 0);
-			break;
 		}
 
 		if (!req)
@@ -870,12 +644,12 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 
 			cdev = ss->function.config->cdev;
 			ERROR(cdev, "start %s%s %s --> %d\n",
-				get_ep_string(ep_type), is_in ? "IN" : "OUT",
+			      is_iso ? "ISO-" : "", is_in ? "IN" : "OUT",
-				ep->name, status);
+			      ep->name, status);
 			free_ep_req(ep, req);
 		}
 
-		if (!(ep_type == EP_ISOC))
+		if (!is_iso)
 			break;
 	}
 
@@ -888,7 +662,7 @@ static void disable_source_sink(struct f_sourcesink *ss)
 
 	cdev = ss->function.config->cdev;
 	disable_endpoints(cdev, ss->in_ep, ss->out_ep, ss->iso_in_ep,
-			ss->iso_out_ep, ss->int_in_ep, ss->int_out_ep);
+			ss->iso_out_ep);
 	VDBG(cdev, "%s disabled\n", ss->function.name);
 }
 
@@ -900,62 +674,6 @@ enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss,
 	int					speed = cdev->gadget->speed;
 	struct usb_ep				*ep;
 
-	if (alt == 2) {
-		/* Configure for periodic interrupt endpoint */
-		ep = ss->int_in_ep;
-		if (ep) {
-			result = config_ep_by_speed(cdev->gadget,
-					&(ss->function), ep);
-			if (result)
-				return result;
-
-			result = usb_ep_enable(ep);
-			if (result < 0)
-				return result;
-
-			ep->driver_data = ss;
-			result = source_sink_start_ep(ss, true, EP_INTERRUPT,
-					speed);
-			if (result < 0) {
-fail1:
-				ep = ss->int_in_ep;
-				if (ep) {
-					usb_ep_disable(ep);
-					ep->driver_data = NULL;
-				}
-				return result;
-			}
-		}
-
-		/*
-		 * one interrupt endpoint reads (sinks) anything OUT (from the
-		 * host)
-		 */
-		ep = ss->int_out_ep;
-		if (ep) {
-			result = config_ep_by_speed(cdev->gadget,
-					&(ss->function), ep);
-			if (result)
-				goto fail1;
-
-			result = usb_ep_enable(ep);
-			if (result < 0)
-				goto fail1;
-
-			ep->driver_data = ss;
-			result = source_sink_start_ep(ss, false, EP_INTERRUPT,
-					speed);
-			if (result < 0) {
-				ep = ss->int_out_ep;
-				usb_ep_disable(ep);
-				ep->driver_data = NULL;
-				goto fail1;
-			}
-		}
-
-		goto out;
-	}
-
 	/* one bulk endpoint writes (sources) zeroes IN (to the host) */
 	ep = ss->in_ep;
 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);
@@ -966,7 +684,7 @@ fail1:
 		return result;
 	ep->driver_data = ss;
 
-	result = source_sink_start_ep(ss, true, EP_BULK, speed);
+	result = source_sink_start_ep(ss, true, false, speed);
 	if (result < 0) {
 fail:
 		ep = ss->in_ep;
@@ -985,7 +703,7 @@ fail:
 		goto fail;
 	ep->driver_data = ss;
 
-	result = source_sink_start_ep(ss, false, EP_BULK, speed);
+	result = source_sink_start_ep(ss, false, false, speed);
 	if (result < 0) {
 fail2:
 		ep = ss->out_ep;
@@ -1008,7 +726,7 @@ fail2:
 			goto fail2;
 		ep->driver_data = ss;
 
-		result = source_sink_start_ep(ss, true, EP_ISOC, speed);
+		result = source_sink_start_ep(ss, true, true, speed);
 		if (result < 0) {
 fail3:
 			ep = ss->iso_in_ep;
@@ -1031,14 +749,13 @@ fail3:
 			goto fail3;
 		ep->driver_data = ss;
 
-		result = source_sink_start_ep(ss, false, EP_ISOC, speed);
+		result = source_sink_start_ep(ss, false, true, speed);
 		if (result < 0) {
 			usb_ep_disable(ep);
 			ep->driver_data = NULL;
 			goto fail3;
 		}
 	}
-
 out:
 	ss->cur_alt = alt;
 
@@ -1054,8 +771,6 @@ static int sourcesink_set_alt(struct usb_function *f,
 
 	if (ss->in_ep->driver_data)
 		disable_source_sink(ss);
-	else if (alt == 2 && ss->int_in_ep->driver_data)
-		disable_source_sink(ss);
 	return enable_source_sink(cdev, ss, alt);
 }
 
@@ -1168,10 +883,6 @@ static struct usb_function *source_sink_alloc_func(
 	isoc_maxpacket = ss_opts->isoc_maxpacket;
 	isoc_mult = ss_opts->isoc_mult;
 	isoc_maxburst = ss_opts->isoc_maxburst;
-	int_interval = ss_opts->int_interval;
-	int_maxpacket = ss_opts->int_maxpacket;
-	int_mult = ss_opts->int_mult;
-	int_maxburst = ss_opts->int_maxburst;
 	buflen = ss_opts->bulk_buflen;
 
 	ss->function.name = "source/sink";
@@ -1468,182 +1179,6 @@ static struct f_ss_opts_attribute f_ss_opts_bulk_buflen =
 			f_ss_opts_bulk_buflen_show,
 			f_ss_opts_bulk_buflen_store);
 
-static ssize_t f_ss_opts_int_interval_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_interval);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_interval_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u32 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou32(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 4096) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_interval = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_interval =
-	__CONFIGFS_ATTR(int_interval, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_interval_show,
-			f_ss_opts_int_interval_store);
-
-static ssize_t f_ss_opts_int_maxpacket_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_maxpacket);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_maxpacket_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u16 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou16(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 1024) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_maxpacket = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_maxpacket =
-	__CONFIGFS_ATTR(int_maxpacket, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_maxpacket_show,
-			f_ss_opts_int_maxpacket_store);
-
-static ssize_t f_ss_opts_int_mult_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_mult);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_mult_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u8 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou8(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 2) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_mult = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_mult =
-	__CONFIGFS_ATTR(int_mult, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_mult_show,
-			f_ss_opts_int_mult_store);
-
-static ssize_t f_ss_opts_int_maxburst_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_maxburst);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_maxburst_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u8 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou8(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 15) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_maxburst = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_maxburst =
-	__CONFIGFS_ATTR(int_maxburst, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_maxburst_show,
-			f_ss_opts_int_maxburst_store);
-
 static struct configfs_attribute *ss_attrs[] = {
 	&f_ss_opts_pattern.attr,
 	&f_ss_opts_isoc_interval.attr,
@@ -1651,10 +1186,6 @@ static struct configfs_attribute *ss_attrs[] = {
 	&f_ss_opts_isoc_mult.attr,
 	&f_ss_opts_isoc_maxburst.attr,
 	&f_ss_opts_bulk_buflen.attr,
-	&f_ss_opts_int_interval.attr,
-	&f_ss_opts_int_maxpacket.attr,
-	&f_ss_opts_int_mult.attr,
-	&f_ss_opts_int_maxburst.attr,
 	NULL,
 };
 
@@ -1684,8 +1215,6 @@ static struct usb_function_instance *source_sink_alloc_inst(void)
 	ss_opts->isoc_interval = GZERO_ISOC_INTERVAL;
 	ss_opts->isoc_maxpacket = GZERO_ISOC_MAXPACKET;
 	ss_opts->bulk_buflen = GZERO_BULK_BUFLEN;
-	ss_opts->int_interval = GZERO_INT_INTERVAL;
-	ss_opts->int_maxpacket = GZERO_INT_MAXPACKET;
 
 	config_group_init_type_name(&ss_opts->func_inst.group, "",
 				    &ss_func_type);

drivers/usb/gadget/function/g_zero.h

@@ -10,8 +10,6 @@
 #define GZERO_QLEN		32
 #define GZERO_ISOC_INTERVAL	4
 #define GZERO_ISOC_MAXPACKET	1024
-#define GZERO_INT_INTERVAL	1 /* Default interrupt interval = 1 ms */
-#define GZERO_INT_MAXPACKET	1024
 
 struct usb_zero_options {
 	unsigned pattern;
@@ -19,10 +17,6 @@ struct usb_zero_options {
 	unsigned isoc_maxpacket;
 	unsigned isoc_mult;
 	unsigned isoc_maxburst;
-	unsigned int_interval; /* In ms */
-	unsigned int_maxpacket;
-	unsigned int_mult;
-	unsigned int_maxburst;
 	unsigned bulk_buflen;
 	unsigned qlen;
 };
@@ -34,10 +28,6 @@ struct f_ss_opts {
 	unsigned isoc_maxpacket;
 	unsigned isoc_mult;
 	unsigned isoc_maxburst;
-	unsigned int_interval; /* In ms */
-	unsigned int_maxpacket;
-	unsigned int_mult;
-	unsigned int_maxburst;
 	unsigned bulk_buflen;
 
 	/*
@@ -72,7 +62,6 @@ int lb_modinit(void);
 void free_ep_req(struct usb_ep *ep, struct usb_request *req);
 void disable_endpoints(struct usb_composite_dev *cdev,
 		struct usb_ep *in, struct usb_ep *out,
-		struct usb_ep *iso_in, struct usb_ep *iso_out,
+		struct usb_ep *iso_in, struct usb_ep *iso_out);
-		struct usb_ep *int_in, struct usb_ep *int_out);
 
 #endif /* __G_ZERO_H */

drivers/usb/gadget/legacy/zero.c

@@ -68,8 +68,6 @@ static struct usb_zero_options gzero_options = {
 	.isoc_maxpacket = GZERO_ISOC_MAXPACKET,
 	.bulk_buflen = GZERO_BULK_BUFLEN,
 	.qlen = GZERO_QLEN,
-	.int_interval = GZERO_INT_INTERVAL,
-	.int_maxpacket = GZERO_INT_MAXPACKET,
 };
 
 /*-------------------------------------------------------------------------*/
@@ -268,21 +266,6 @@ module_param_named(isoc_maxburst, gzero_options.isoc_maxburst, uint,
 		S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(isoc_maxburst, "0 - 15 (ss only)");
 
-module_param_named(int_interval, gzero_options.int_interval, uint,
-		S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_interval, "1 - 16");
-
-module_param_named(int_maxpacket, gzero_options.int_maxpacket, uint,
-		S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_maxpacket, "0 - 1023 (fs), 0 - 1024 (hs/ss)");
-
-module_param_named(int_mult, gzero_options.int_mult, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_mult, "0 - 2 (hs/ss only)");
-
-module_param_named(int_maxburst, gzero_options.int_maxburst, uint,
-		S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_maxburst, "0 - 15 (ss only)");
-
 static struct usb_function *func_lb;
 static struct usb_function_instance *func_inst_lb;
 
@@ -318,10 +301,6 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
 	ss_opts->isoc_maxpacket = gzero_options.isoc_maxpacket;
 	ss_opts->isoc_mult = gzero_options.isoc_mult;
 	ss_opts->isoc_maxburst = gzero_options.isoc_maxburst;
-	ss_opts->int_interval = gzero_options.int_interval;
-	ss_opts->int_maxpacket = gzero_options.int_maxpacket;
-	ss_opts->int_mult = gzero_options.int_mult;
-	ss_opts->int_maxburst = gzero_options.int_maxburst;
 	ss_opts->bulk_buflen = gzero_options.bulk_buflen;
 
 	func_ss = usb_get_function(func_inst_ss);

drivers/usb/host/ehci-atmel.c

@@ -34,7 +34,6 @@ static const char hcd_name[] = "ehci-atmel";
 
 struct atmel_ehci_priv {
 	struct clk *iclk;
-	struct clk *fclk;
 	struct clk *uclk;
 	bool clocked;
 };
@@ -51,12 +50,9 @@ static void atmel_start_clock(struct atmel_ehci_priv *atmel_ehci)
 {
 	if (atmel_ehci->clocked)
 		return;
-	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
+
-		clk_set_rate(atmel_ehci->uclk, 48000000);
+	clk_prepare_enable(atmel_ehci->uclk);
-		clk_prepare_enable(atmel_ehci->uclk);
-	}
 	clk_prepare_enable(atmel_ehci->iclk);
-	clk_prepare_enable(atmel_ehci->fclk);
 	atmel_ehci->clocked = true;
 }
 
@@ -64,10 +60,9 @@ static void atmel_stop_clock(struct atmel_ehci_priv *atmel_ehci)
 {
 	if (!atmel_ehci->clocked)
 		return;
-	clk_disable_unprepare(atmel_ehci->fclk);
+
 	clk_disable_unprepare(atmel_ehci->iclk);
-	if (IS_ENABLED(CONFIG_COMMON_CLK))
+	clk_disable_unprepare(atmel_ehci->uclk);
-		clk_disable_unprepare(atmel_ehci->uclk);
 	atmel_ehci->clocked = false;
 }
 
@@ -146,20 +141,13 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 		retval = -ENOENT;
 		goto fail_request_resource;
 	}
-	atmel_ehci->fclk = devm_clk_get(&pdev->dev, "uhpck");
+
-	if (IS_ERR(atmel_ehci->fclk)) {
+	atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk");
-		dev_err(&pdev->dev, "Error getting function clock\n");
+	if (IS_ERR(atmel_ehci->uclk)) {
-		retval = -ENOENT;
+		dev_err(&pdev->dev, "failed to get uclk\n");
+		retval = PTR_ERR(atmel_ehci->uclk);
 		goto fail_request_resource;
 	}
-	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
-		atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk");
-		if (IS_ERR(atmel_ehci->uclk)) {
-			dev_err(&pdev->dev, "failed to get uclk\n");
-			retval = PTR_ERR(atmel_ehci->uclk);
-			goto fail_request_resource;
-		}
-	}
 
 	ehci = hcd_to_ehci(hcd);
 	/* registers start at offset 0x0 */

drivers/usb/host/xhci-ring.c

@@ -1729,7 +1729,7 @@ static void xhci_cleanup_halted_endpoint(struct xhci_hcd *xhci,
 	if (!command)
 		return;
 
-	ep->ep_state |= EP_HALTED | EP_RECENTLY_HALTED;
+	ep->ep_state |= EP_HALTED;
 	ep->stopped_stream = stream_id;
 
 	xhci_queue_reset_ep(xhci, command, slot_id, ep_index);

drivers/usb/host/xhci.c

@@ -1338,12 +1338,6 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
 		goto exit;
 	}
 
-	/* Reject urb if endpoint is in soft reset, queue must stay empty */
-	if (xhci->devs[slot_id]->eps[ep_index].ep_state & EP_CONFIG_PENDING) {
-		xhci_warn(xhci, "Can't enqueue URB while ep is in soft reset\n");
-		ret = -EINVAL;
-	}
-
 	if (usb_endpoint_xfer_isoc(&urb->ep->desc))
 		size = urb->number_of_packets;
 	else
@@ -2954,36 +2948,23 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci,
 	}
 }
 
-/* Called after clearing a halted device. USB core should have sent the control
+/* Called when clearing halted device. The core should have sent the control
  * message to clear the device halt condition. The host side of the halt should
- * already be cleared with a reset endpoint command issued immediately when the
+ * already be cleared with a reset endpoint command issued when the STALL tx
- * STALL tx event was received.
+ * event was received.
+ *
+ * Context: in_interrupt
  */
 
 void xhci_endpoint_reset(struct usb_hcd *hcd,
 		struct usb_host_endpoint *ep)
 {
 	struct xhci_hcd *xhci;
-	struct usb_device *udev;
-	struct xhci_virt_device *virt_dev;
-	struct xhci_virt_ep *virt_ep;
-	struct xhci_input_control_ctx *ctrl_ctx;
-	struct xhci_command *command;
-	unsigned int ep_index, ep_state;
-	unsigned long flags;
-	u32 ep_flag;
 
 	xhci = hcd_to_xhci(hcd);
-	udev = (struct usb_device *) ep->hcpriv;
-	if (!ep->hcpriv)
-		return;
-	virt_dev = xhci->devs[udev->slot_id];
-	ep_index = xhci_get_endpoint_index(&ep->desc);
-	virt_ep = &virt_dev->eps[ep_index];
-	ep_state = virt_ep->ep_state;
 
 	/*
-	 * Implement the config ep command in xhci 4.6.8 additional note:
+	 * We might need to implement the config ep cmd in xhci 4.8.1 note:
 	 * The Reset Endpoint Command may only be issued to endpoints in the
 	 * Halted state. If software wishes reset the Data Toggle or Sequence
 	 * Number of an endpoint that isn't in the Halted state, then software
@@ -2991,72 +2972,9 @@ void xhci_endpoint_reset(struct usb_hcd *hcd,
 	 * for the target endpoint. that is in the Stopped state.
 	 */
 
-	if (ep_state & SET_DEQ_PENDING || ep_state & EP_RECENTLY_HALTED) {
+	/* For now just print debug to follow the situation */
-		virt_ep->ep_state &= ~EP_RECENTLY_HALTED;
+	xhci_dbg(xhci, "Endpoint 0x%x ep reset callback called\n",
-		xhci_dbg(xhci, "ep recently halted, no toggle reset needed\n");
+		 ep->desc.bEndpointAddress);
-		return;
-	}
-
-	/* Only interrupt and bulk ep's use Data toggle, USB2 spec 5.5.4-> */
-	if (usb_endpoint_xfer_control(&ep->desc) ||
-	    usb_endpoint_xfer_isoc(&ep->desc))
-		return;
-
-	ep_flag = xhci_get_endpoint_flag(&ep->desc);
-
-	if (ep_flag == SLOT_FLAG || ep_flag == EP0_FLAG)
-		return;
-
-	command = xhci_alloc_command(xhci, true, true, GFP_NOWAIT);
-	if (!command) {
-		xhci_err(xhci, "Could not allocate xHCI command structure.\n");
-		return;
-	}
-
-	spin_lock_irqsave(&xhci->lock, flags);
-
-	/* block ringing ep doorbell */
-	virt_ep->ep_state |= EP_CONFIG_PENDING;
-
-	/*
-	 * Make sure endpoint ring is empty before resetting the toggle/seq.
-	 * Driver is required to synchronously cancel all transfer request.
-	 *
-	 * xhci 4.6.6 says we can issue a configure endpoint command on a
-	 * running endpoint ring as long as it's idle (queue empty)
-	 */
-
-	if (!list_empty(&virt_ep->ring->td_list)) {
-		dev_err(&udev->dev, "EP not empty, refuse reset\n");
-		spin_unlock_irqrestore(&xhci->lock, flags);
-		goto cleanup;
-	}
-
-	xhci_dbg(xhci, "Reset toggle/seq for slot %d, ep_index: %d\n",
-		 udev->slot_id, ep_index);
-
-	ctrl_ctx = xhci_get_input_control_ctx(command->in_ctx);
-	if (!ctrl_ctx) {
-		xhci_err(xhci, "Could not get input context, bad type. virt_dev: %p, in_ctx %p\n",
-			 virt_dev, virt_dev->in_ctx);
-		spin_unlock_irqrestore(&xhci->lock, flags);
-		goto cleanup;
-	}
-	xhci_setup_input_ctx_for_config_ep(xhci, command->in_ctx,
-					   virt_dev->out_ctx, ctrl_ctx,
-					   ep_flag, ep_flag);
-	xhci_endpoint_copy(xhci, command->in_ctx, virt_dev->out_ctx, ep_index);
-
-	xhci_queue_configure_endpoint(xhci, command, command->in_ctx->dma,
-				     udev->slot_id, false);
-	xhci_ring_cmd_db(xhci);
-	spin_unlock_irqrestore(&xhci->lock, flags);
-
-	wait_for_completion(command->completion);
-
-cleanup:
-	virt_ep->ep_state &= ~EP_CONFIG_PENDING;
-	xhci_free_command(xhci, command);
 }
 
 static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,

drivers/usb/host/xhci.h

@@ -865,8 +865,6 @@ struct xhci_virt_ep {
 #define EP_HAS_STREAMS		(1 << 4)
 /* Transitioning the endpoint to not using streams, don't enqueue URBs */
 #define EP_GETTING_NO_STREAMS	(1 << 5)
-#define EP_RECENTLY_HALTED	(1 << 6)
-#define EP_CONFIG_PENDING	(1 << 7)
 	/* ----  Related to URB cancellation ---- */
 	struct list_head	cancelled_td_list;
 	struct xhci_td		*stopped_td;

drivers/usb/isp1760/isp1760-core.c

@@ -151,8 +151,7 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
 	}
 
 	if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && !udc_disabled) {
-		ret = isp1760_udc_register(isp, irq, irqflags | IRQF_SHARED |
+		ret = isp1760_udc_register(isp, irq, irqflags);
-					   IRQF_DISABLED);
 		if (ret < 0) {
 			isp1760_hcd_unregister(&isp->hcd);
 			return ret;

drivers/usb/isp1760/isp1760-udc.c

@@ -1191,6 +1191,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
 			     struct usb_gadget_driver *driver)
 {
 	struct isp1760_udc *udc = gadget_to_udc(gadget);
+	unsigned long flags;
 
 	/* The hardware doesn't support low speed. */
 	if (driver->max_speed < USB_SPEED_FULL) {
@@ -1198,7 +1199,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
 		return -EINVAL;
 	}
 
-	spin_lock(&udc->lock);
+	spin_lock_irqsave(&udc->lock, flags);
 
 	if (udc->driver) {
 		dev_err(udc->isp->dev, "UDC already has a gadget driver\n");
@@ -1208,7 +1209,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
 
 	udc->driver = driver;
 
-	spin_unlock(&udc->lock);
+	spin_unlock_irqrestore(&udc->lock, flags);
 
 	dev_dbg(udc->isp->dev, "starting UDC with driver %s\n",
 		driver->function);
@@ -1232,6 +1233,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
 static int isp1760_udc_stop(struct usb_gadget *gadget)
 {
 	struct isp1760_udc *udc = gadget_to_udc(gadget);
+	unsigned long flags;
 
 	dev_dbg(udc->isp->dev, "%s\n", __func__);
 
@@ -1239,9 +1241,9 @@ static int isp1760_udc_stop(struct usb_gadget *gadget)
 
 	isp1760_udc_write(udc, DC_MODE, 0);
 
-	spin_lock(&udc->lock);
+	spin_lock_irqsave(&udc->lock, flags);
 	udc->driver = NULL;
-	spin_unlock(&udc->lock);
+	spin_unlock_irqrestore(&udc->lock, flags);
 
 	return 0;
 }
@@ -1411,7 +1413,7 @@ static int isp1760_udc_init(struct isp1760_udc *udc)
 		return -ENODEV;
 	}
 
-	if (chipid != 0x00011582) {
+	if (chipid != 0x00011582 && chipid != 0x00158210) {
 		dev_err(udc->isp->dev, "udc: invalid chip ID 0x%08x\n", chipid);
 		return -ENODEV;
 	}
@@ -1451,8 +1453,8 @@ int isp1760_udc_register(struct isp1760_device *isp, int irq,
 
 	sprintf(udc->irqname, "%s (udc)", devname);
 
-	ret = request_irq(irq, isp1760_udc_irq, IRQF_SHARED | IRQF_DISABLED |
+	ret = request_irq(irq, isp1760_udc_irq, IRQF_SHARED | irqflags,
-			  irqflags, udc->irqname, udc);
+			  udc->irqname, udc);
 	if (ret < 0)
 		goto error;
 

drivers/usb/musb/Kconfig

@@ -79,7 +79,8 @@ config USB_MUSB_TUSB6010
 
 config USB_MUSB_OMAP2PLUS
 	tristate "OMAP2430 and onwards"
-	depends on ARCH_OMAP2PLUS && USB && OMAP_CONTROL_PHY
+	depends on ARCH_OMAP2PLUS && USB
+	depends on OMAP_CONTROL_PHY || !OMAP_CONTROL_PHY
 	select GENERIC_PHY
 
 config USB_MUSB_AM35X

drivers/usb/phy/phy-am335x-control.c

@@ -126,6 +126,9 @@ struct phy_control *am335x_get_phy_control(struct device *dev)
 		return NULL;
 
 	dev = bus_find_device(&platform_bus_type, NULL, node, match);
+	if (!dev)
+		return NULL;
+
 	ctrl_usb = dev_get_drvdata(dev);
 	if (!ctrl_usb)
 		return NULL;

drivers/usb/storage/unusual_uas.h

@@ -113,6 +113,13 @@ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x9999,
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NO_ATA_1X),
 
+/* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */
+UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999,
+		"Initio Corporation",
+		"",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_ATA_1X),
+
 /* Reported-by: Tom Arild Naess <tanaess@gmail.com> */
 UNUSUAL_DEV(0x152d, 0x0539, 0x0000, 0x9999,
 		"JMicron",