From 9b790915450e2e2eb9a8df7fe32f41e895de9da1 Mon Sep 17 00:00:00 2001
From: Julius Werner <jwerner@chromium.org>
Date: Fri, 17 May 2013 12:08:51 -0700
Subject: usb: ehci: Only sleep for post-resume handover if devices use persist

The current EHCI code sleeps a flat 110ms in the resume path if there
was a USB 1.1 device connected to its companion controller during
suspend, waiting for the device to reappear and reset so that it can be
handed back to the companion. This is necessary if the device uses
persist, so that the companion controller can actually see it during its
own resume path.

However, if the device doesn't use persist, this is entirely
unnecessary. We might just as well ignore it and have the normal device
detection/reset/handoff code handle it asynchronously when it eventually
shows up. As USB 1.1 devices are almost exclusively HIDs these days (for
which persist has no value), this can allow distros to shave another
tenth of a second off their resume time.

In order to enable this optimization, the patch also adds a new
usb_for_each_dev() iterator that is exported by the USB core and wraps
bus_for_each_dev() with the logic to differentiate between struct
usb_device and struct usb_interface on the usb_bus_type bus.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/linux')

diff --git a/include/linux/usb.h b/include/linux/usb.h
index a0bee5a28d1a..b424e5318f20 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -717,6 +717,7 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface,
 extern int usb_match_one_id(struct usb_interface *interface,
 			    const struct usb_device_id *id);
 
+extern int usb_for_each_dev(void *data, int (*fn)(struct usb_device *, void *));
 extern struct usb_interface *usb_find_interface(struct usb_driver *drv,
 		int minor);
 extern struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev,
-- 
cgit v1.2.3


From 9cd9384c73395f6ce78e1b9d529bc9f294fd5223 Mon Sep 17 00:00:00 2001
From: Venu Byravarasu <vbyravarasu@nvidia.com>
Date: Thu, 16 May 2013 19:42:59 +0530
Subject: usb: phy: tegra: Get PHY mode using DT

Added a new PHY mode to support OTG.
Obtained Tegra USB PHY mode using DT property.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/host/ehci-tegra.c     |  1 -
 drivers/usb/phy/phy-tegra-usb.c   | 13 +++++++++++--
 include/linux/usb/tegra_usb_phy.h |  3 ++-
 3 files changed, 13 insertions(+), 4 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 59d111bf44a9..d64199044b4a 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -736,7 +736,6 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 
 	tegra->phy = tegra_usb_phy_open(&pdev->dev, instance, hcd->regs,
 					pdata->phy_config,
-					TEGRA_USB_PHY_MODE_HOST,
 					tegra_ehci_set_pts,
 					tegra_ehci_set_phcd);
 	if (IS_ERR(tegra->phy)) {
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 8bcc12f6804a..0ff1f3e03b1e 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -687,7 +687,7 @@ static int	tegra_usb_phy_suspend(struct usb_phy *x, int suspend)
 }
 
 struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
-	void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode,
+	void __iomem *regs, void *config,
 	void (*set_pts)(struct usb_phy *x, u8 pts_val),
 	void (*set_phcd)(struct usb_phy *x, bool enable))
 
@@ -705,7 +705,6 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
 	phy->instance = instance;
 	phy->regs = regs;
 	phy->config = config;
-	phy->mode = phy_mode;
 	phy->dev = dev;
 	phy->is_legacy_phy =
 		of_property_read_bool(np, "nvidia,has-legacy-mode");
@@ -717,6 +716,16 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
 	else
 		phy->is_ulpi_phy = true;
 
+	err = of_property_match_string(np, "dr_mode", "otg");
+	if (err < 0) {
+		err = of_property_match_string(np, "dr_mode", "peripheral");
+		if (err < 0)
+			phy->mode = TEGRA_USB_PHY_MODE_HOST;
+		else
+			phy->mode = TEGRA_USB_PHY_MODE_DEVICE;
+	} else
+		phy->mode = TEGRA_USB_PHY_MODE_OTG;
+
 	if (!phy->config) {
 		if (phy->is_ulpi_phy) {
 			pr_err("%s: ulpi phy configuration missing", __func__);
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index 1b7519a8c0bf..ff2d95978b38 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -42,6 +42,7 @@ enum tegra_usb_phy_port_speed {
 enum tegra_usb_phy_mode {
 	TEGRA_USB_PHY_MODE_DEVICE,
 	TEGRA_USB_PHY_MODE_HOST,
+	TEGRA_USB_PHY_MODE_OTG,
 };
 
 struct tegra_xtal_freq;
@@ -66,7 +67,7 @@ struct tegra_usb_phy {
 };
 
 struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
-	void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode,
+	void __iomem *regs, void *config,
 	void (*set_pts)(struct usb_phy *x, u8 pts_val),
 	void (*set_phcd)(struct usb_phy *x, bool enable));
 
-- 
cgit v1.2.3


From 12ea18e4f0bd793b7f9d7e8bf6c76815d5621ac3 Mon Sep 17 00:00:00 2001
From: Venu Byravarasu <vbyravarasu@nvidia.com>
Date: Thu, 16 May 2013 19:43:00 +0530
Subject: usb: phy: tegra: get ULPI reset GPIO info using DT.

As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-tegra-usb.c   | 25 +++++++++++--------------
 include/linux/usb/tegra_usb_phy.h |  1 +
 2 files changed, 12 insertions(+), 14 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 0ff1f3e03b1e..b8c688af3322 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -541,11 +541,10 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy)
 	int ret;
 	unsigned long val;
 	void __iomem *base = phy->regs;
-	struct tegra_ulpi_config *config = phy->config;
 
-	gpio_direction_output(config->reset_gpio, 0);
+	gpio_direction_output(phy->reset_gpio, 0);
 	msleep(5);
-	gpio_direction_output(config->reset_gpio, 1);
+	gpio_direction_output(phy->reset_gpio, 1);
 
 	clk_prepare_enable(phy->clk);
 	msleep(1);
@@ -603,10 +602,8 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy)
 
 static int ulpi_phy_power_off(struct tegra_usb_phy *phy)
 {
-	struct tegra_ulpi_config *config = phy->config;
-
 	clk_disable(phy->clk);
-	return gpio_direction_output(config->reset_gpio, 0);
+	return gpio_direction_output(phy->reset_gpio, 0);
 }
 
 static int	tegra_phy_init(struct usb_phy *x)
@@ -622,18 +619,18 @@ static int	tegra_phy_init(struct usb_phy *x)
 			pr_err("%s: can't get ulpi clock\n", __func__);
 			return PTR_ERR(phy->clk);
 		}
-		if (!gpio_is_valid(ulpi_config->reset_gpio))
-			ulpi_config->reset_gpio =
-				of_get_named_gpio(phy->dev->of_node,
-						  "nvidia,phy-reset-gpio", 0);
-		if (!gpio_is_valid(ulpi_config->reset_gpio)) {
+
+		phy->reset_gpio =
+			of_get_named_gpio(phy->dev->of_node,
+					  "nvidia,phy-reset-gpio", 0);
+		if (!gpio_is_valid(phy->reset_gpio)) {
 			pr_err("%s: invalid reset gpio: %d\n", __func__,
-			       ulpi_config->reset_gpio);
+			       phy->reset_gpio);
 			err = -EINVAL;
 			goto err1;
 		}
-		gpio_request(ulpi_config->reset_gpio, "ulpi_phy_reset_b");
-		gpio_direction_output(ulpi_config->reset_gpio, 0);
+		gpio_request(phy->reset_gpio, "ulpi_phy_reset_b");
+		gpio_direction_output(phy->reset_gpio, 0);
 		phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0);
 		phy->ulpi->io_priv = phy->regs + ULPI_VIEWPORT;
 	} else {
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index ff2d95978b38..97d123c4d7cc 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -62,6 +62,7 @@ struct tegra_usb_phy {
 	struct device *dev;
 	bool is_legacy_phy;
 	bool is_ulpi_phy;
+	int reset_gpio;
 	void (*set_pts)(struct usb_phy *x, u8 pts_val);
 	void (*set_phcd)(struct usb_phy *x, bool enable);
 };
-- 
cgit v1.2.3


From 2d22b42db02fdafeb7b990c2c25caabff4dd46fe Mon Sep 17 00:00:00 2001
From: Venu Byravarasu <vbyravarasu@nvidia.com>
Date: Thu, 16 May 2013 19:43:02 +0530
Subject: usb: phy: registering Tegra USB PHY as platform driver

Registered Tegra USB PHY as a separate platform driver.

To synchronize host controller and PHY initialization, used deferred
probe mechanism. As PHY should be initialized before EHCI starts running,
deferred probe of Tegra EHCI driver till PHY probe gets completed.

Got rid of instance number based handling in host driver.

Made use of DT params to get the PHY Pad registers.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/host/ehci-tegra.c     | 104 ++++++------
 drivers/usb/phy/phy-tegra-usb.c   | 325 +++++++++++++++++++++-----------------
 include/linux/usb/tegra_usb_phy.h |  11 +-
 3 files changed, 230 insertions(+), 210 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index d64199044b4a..8390c870299a 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -611,7 +611,7 @@ static const struct dev_pm_ops tegra_ehci_pm_ops = {
 /* Bits of PORTSC1, which will get cleared by writing 1 into them */
 #define TEGRA_PORTSC1_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC)
 
-static void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val)
+void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val)
 {
 	unsigned long val;
 	struct usb_hcd *hcd = bus_to_hcd(x->otg->host);
@@ -622,8 +622,9 @@ static void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val)
 	val |= TEGRA_USB_PORTSC1_PTS(pts_val & 3);
 	writel(val, base + TEGRA_USB_PORTSC1);
 }
+EXPORT_SYMBOL_GPL(tegra_ehci_set_pts);
 
-static void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
+void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
 {
 	unsigned long val;
 	struct usb_hcd *hcd = bus_to_hcd(x->otg->host);
@@ -636,6 +637,7 @@ static void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
 		val &= ~TEGRA_USB_PORTSC1_PHCD;
 	writel(val, base + TEGRA_USB_PORTSC1);
 }
+EXPORT_SYMBOL_GPL(tegra_ehci_set_phcd);
 
 static int tegra_ehci_probe(struct platform_device *pdev)
 {
@@ -645,7 +647,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	struct tegra_ehci_platform_data *pdata;
 	int err = 0;
 	int irq;
-	int instance = pdev->id;
+	struct device_node *np_phy;
 	struct usb_phy *u_phy;
 
 	pdata = pdev->dev.platform_data;
@@ -670,38 +672,49 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	if (!tegra)
 		return -ENOMEM;
 
-	hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev,
-					dev_name(&pdev->dev));
-	if (!hcd) {
-		dev_err(&pdev->dev, "Unable to create HCD\n");
-		return -ENOMEM;
-	}
-
-	platform_set_drvdata(pdev, tegra);
-
 	tegra->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(tegra->clk)) {
 		dev_err(&pdev->dev, "Can't get ehci clock\n");
-		err = PTR_ERR(tegra->clk);
-		goto fail_clk;
+		return PTR_ERR(tegra->clk);
 	}
 
 	err = clk_prepare_enable(tegra->clk);
 	if (err)
-		goto fail_clk;
+		return err;
 
 	tegra_periph_reset_assert(tegra->clk);
 	udelay(1);
 	tegra_periph_reset_deassert(tegra->clk);
 
+	np_phy = of_parse_phandle(pdev->dev.of_node, "nvidia,phy", 0);
+	if (!np_phy) {
+		err = -ENODEV;
+		goto cleanup_clk;
+	}
+
+	u_phy = tegra_usb_get_phy(np_phy);
+	if (IS_ERR(u_phy)) {
+		err = PTR_ERR(u_phy);
+		goto cleanup_clk;
+	}
+
 	tegra->needs_double_reset = of_property_read_bool(pdev->dev.of_node,
 		"nvidia,needs-double-reset");
 
+	hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev,
+					dev_name(&pdev->dev));
+	if (!hcd) {
+		dev_err(&pdev->dev, "Unable to create HCD\n");
+		err = -ENOMEM;
+		goto cleanup_clk;
+	}
+	hcd->phy = u_phy;
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "Failed to get I/O memory\n");
 		err = -ENXIO;
-		goto fail_io;
+		goto cleanup_hcd_create;
 	}
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
@@ -709,57 +722,28 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	if (!hcd->regs) {
 		dev_err(&pdev->dev, "Failed to remap I/O memory\n");
 		err = -ENOMEM;
-		goto fail_io;
-	}
-
-	/* This is pretty ugly and needs to be fixed when we do only
-	 * device-tree probing. Old code relies on the platform_device
-	 * numbering that we lack for device-tree-instantiated devices.
-	 */
-	if (instance < 0) {
-		switch (res->start) {
-		case TEGRA_USB_BASE:
-			instance = 0;
-			break;
-		case TEGRA_USB2_BASE:
-			instance = 1;
-			break;
-		case TEGRA_USB3_BASE:
-			instance = 2;
-			break;
-		default:
-			err = -ENODEV;
-			dev_err(&pdev->dev, "unknown usb instance\n");
-			goto fail_io;
-		}
+		goto cleanup_hcd_create;
 	}
 
-	tegra->phy = tegra_usb_phy_open(&pdev->dev, instance, hcd->regs,
-					pdata->phy_config,
-					tegra_ehci_set_pts,
-					tegra_ehci_set_phcd);
-	if (IS_ERR(tegra->phy)) {
-		dev_err(&pdev->dev, "Failed to open USB phy\n");
-		err = -ENXIO;
-		goto fail_io;
+	err = usb_phy_init(hcd->phy);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to initialize phy\n");
+		goto cleanup_hcd_create;
 	}
 
-	hcd->phy = u_phy = &tegra->phy->u_phy;
-	usb_phy_init(hcd->phy);
-
 	u_phy->otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
 			     GFP_KERNEL);
 	if (!u_phy->otg) {
 		dev_err(&pdev->dev, "Failed to alloc memory for otg\n");
 		err = -ENOMEM;
-		goto fail_io;
+		goto cleanup_phy;
 	}
 	u_phy->otg->host = hcd_to_bus(hcd);
 
 	err = usb_phy_set_suspend(hcd->phy, 0);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to power on the phy\n");
-		goto fail_phy;
+		goto cleanup_phy;
 	}
 
 	tegra->host_resumed = 1;
@@ -769,7 +753,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	if (!irq) {
 		dev_err(&pdev->dev, "Failed to get IRQ\n");
 		err = -ENODEV;
-		goto fail_phy;
+		goto cleanup_phy;
 	}
 
 	if (pdata->operating_mode == TEGRA_USB_OTG) {
@@ -781,10 +765,12 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 		tegra->transceiver = ERR_PTR(-ENODEV);
 	}
 
+	platform_set_drvdata(pdev, tegra);
+
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to add USB HCD\n");
-		goto fail;
+		goto cleanup_phy;
 	}
 
 	pm_runtime_set_active(&pdev->dev);
@@ -797,15 +783,15 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	pm_runtime_put_sync(&pdev->dev);
 	return err;
 
-fail:
+cleanup_phy:
 	if (!IS_ERR(tegra->transceiver))
 		otg_set_host(tegra->transceiver->otg, NULL);
-fail_phy:
+
 	usb_phy_shutdown(hcd->phy);
-fail_io:
-	clk_disable_unprepare(tegra->clk);
-fail_clk:
+cleanup_hcd_create:
 	usb_put_hcd(hcd);
+cleanup_clk:
+	clk_disable_unprepare(tegra->clk);
 	return err;
 }
 
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index f423ae88b741..5d9af11d2731 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -1,9 +1,11 @@
 /*
  * Copyright (C) 2010 Google, Inc.
+ * Copyright (C) 2013 NVIDIA Corporation
  *
  * Author:
  *	Erik Gilling <konkers@google.com>
  *	Benoit Goby <benoit@android.com>
+ *	Venu Byravarasu <vbyravarasu@nvidia.com>
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -30,9 +32,7 @@
 #include <linux/usb/ulpi.h>
 #include <asm/mach-types.h>
 #include <linux/usb/tegra_usb_phy.h>
-
-#define TEGRA_USB_BASE		0xC5000000
-#define TEGRA_USB_SIZE		SZ_16K
+#include <linux/module.h>
 
 #define ULPI_VIEWPORT		0x170
 
@@ -198,32 +198,15 @@ static struct tegra_utmip_config utmip_default[] = {
 
 static int utmip_pad_open(struct tegra_usb_phy *phy)
 {
-	phy->pad_clk = clk_get_sys("utmip-pad", NULL);
+	phy->pad_clk = devm_clk_get(phy->dev, "utmi-pads");
 	if (IS_ERR(phy->pad_clk)) {
 		pr_err("%s: can't get utmip pad clock\n", __func__);
 		return PTR_ERR(phy->pad_clk);
 	}
 
-	if (phy->is_legacy_phy) {
-		phy->pad_regs = phy->regs;
-	} else {
-		phy->pad_regs = ioremap(TEGRA_USB_BASE, TEGRA_USB_SIZE);
-		if (!phy->pad_regs) {
-			pr_err("%s: can't remap usb registers\n", __func__);
-			clk_put(phy->pad_clk);
-			return -ENOMEM;
-		}
-	}
 	return 0;
 }
 
-static void utmip_pad_close(struct tegra_usb_phy *phy)
-{
-	if (!phy->is_legacy_phy)
-		iounmap(phy->pad_regs);
-	clk_put(phy->pad_clk);
-}
-
 static void utmip_pad_power_on(struct tegra_usb_phy *phy)
 {
 	unsigned long val, flags;
@@ -299,7 +282,7 @@ static void utmi_phy_clk_disable(struct tegra_usb_phy *phy)
 		val &= ~USB_SUSP_SET;
 		writel(val, base + USB_SUSP_CTRL);
 	} else
-		phy->set_phcd(&phy->u_phy, true);
+		tegra_ehci_set_phcd(&phy->u_phy, true);
 
 	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID, 0) < 0)
 		pr_err("%s: timeout waiting for phy to stabilize\n", __func__);
@@ -321,7 +304,7 @@ static void utmi_phy_clk_enable(struct tegra_usb_phy *phy)
 		val &= ~USB_SUSP_CLR;
 		writel(val, base + USB_SUSP_CTRL);
 	} else
-		phy->set_phcd(&phy->u_phy, false);
+		tegra_ehci_set_phcd(&phy->u_phy, false);
 
 	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID,
 						     USB_PHY_CLK_VALID))
@@ -444,7 +427,7 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy)
 	utmi_phy_clk_enable(phy);
 
 	if (!phy->is_legacy_phy)
-		phy->set_pts(&phy->u_phy, 0);
+		tegra_ehci_set_pts(&phy->u_phy, 0);
 
 	return 0;
 }
@@ -614,76 +597,11 @@ static int ulpi_phy_power_off(struct tegra_usb_phy *phy)
 	return gpio_direction_output(phy->reset_gpio, 0);
 }
 
-static int	tegra_phy_init(struct usb_phy *x)
-{
-	struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy);
-	struct tegra_ulpi_config *ulpi_config;
-	int err;
-
-	if (phy->is_ulpi_phy) {
-		ulpi_config = phy->config;
-		phy->clk = clk_get_sys(NULL, ulpi_config->clk);
-		if (IS_ERR(phy->clk)) {
-			pr_err("%s: can't get ulpi clock\n", __func__);
-			return PTR_ERR(phy->clk);
-		}
-
-		phy->reset_gpio =
-			of_get_named_gpio(phy->dev->of_node,
-					  "nvidia,phy-reset-gpio", 0);
-		if (!gpio_is_valid(phy->reset_gpio)) {
-			dev_err(phy->dev, "invalid gpio: %d\n",
-				phy->reset_gpio);
-			err = phy->reset_gpio;
-			goto cleanup_clk_get;
-		}
-
-		err = gpio_request(phy->reset_gpio, "ulpi_phy_reset_b");
-		if (err < 0) {
-			dev_err(phy->dev, "request failed for gpio: %d\n",
-			       phy->reset_gpio);
-			goto cleanup_clk_get;
-		}
-
-		err = gpio_direction_output(phy->reset_gpio, 0);
-		if (err < 0) {
-			dev_err(phy->dev, "gpio %d direction not set to output\n",
-			       phy->reset_gpio);
-			goto cleanup_gpio_req;
-		}
-
-		phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0);
-		if (!phy->ulpi) {
-			dev_err(phy->dev, "otg_ulpi_create returned NULL\n");
-			err = -ENOMEM;
-			goto cleanup_gpio_req;
-		}
-
-		phy->ulpi->io_priv = phy->regs + ULPI_VIEWPORT;
-	} else {
-		err = utmip_pad_open(phy);
-		if (err < 0)
-			return err;
-	}
-	return 0;
-cleanup_gpio_req:
-	gpio_free(phy->reset_gpio);
-cleanup_clk_get:
-	clk_put(phy->clk);
-	return err;
-}
-
 static void tegra_usb_phy_close(struct usb_phy *x)
 {
 	struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy);
 
-	if (phy->is_ulpi_phy)
-		clk_put(phy->clk);
-	else
-		utmip_pad_close(phy);
 	clk_disable_unprepare(phy->pll_u);
-	clk_put(phy->pll_u);
-	kfree(phy);
 }
 
 static int tegra_usb_phy_power_on(struct tegra_usb_phy *phy)
@@ -711,63 +629,63 @@ static int	tegra_usb_phy_suspend(struct usb_phy *x, int suspend)
 		return tegra_usb_phy_power_on(phy);
 }
 
-struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
-	void __iomem *regs, void *config,
-	void (*set_pts)(struct usb_phy *x, u8 pts_val),
-	void (*set_phcd)(struct usb_phy *x, bool enable))
-
+static int ulpi_open(struct tegra_usb_phy *phy)
 {
-	struct tegra_usb_phy *phy;
-	unsigned long parent_rate;
-	int i;
 	int err;
-	struct device_node *np = dev->of_node;
 
-	phy = kzalloc(sizeof(struct tegra_usb_phy), GFP_KERNEL);
-	if (!phy)
-		return ERR_PTR(-ENOMEM);
+	phy->clk = devm_clk_get(phy->dev, "ulpi-link");
+	if (IS_ERR(phy->clk)) {
+		pr_err("%s: can't get ulpi clock\n", __func__);
+		return PTR_ERR(phy->clk);
+	}
 
-	phy->instance = instance;
-	phy->regs = regs;
-	phy->config = config;
-	phy->dev = dev;
-	phy->is_legacy_phy =
-		of_property_read_bool(np, "nvidia,has-legacy-mode");
-	phy->set_pts = set_pts;
-	phy->set_phcd = set_phcd;
-	err = of_property_match_string(np, "phy_type", "ulpi");
-	if (err < 0)
-		phy->is_ulpi_phy = false;
-	else
-		phy->is_ulpi_phy = true;
+	err = devm_gpio_request(phy->dev, phy->reset_gpio, "ulpi_phy_reset_b");
+	if (err < 0) {
+		dev_err(phy->dev, "request failed for gpio: %d\n",
+		       phy->reset_gpio);
+		return err;
+	}
 
-	err = of_property_match_string(np, "dr_mode", "otg");
+	err = gpio_direction_output(phy->reset_gpio, 0);
 	if (err < 0) {
-		err = of_property_match_string(np, "dr_mode", "peripheral");
-		if (err < 0)
-			phy->mode = TEGRA_USB_PHY_MODE_HOST;
+		dev_err(phy->dev, "gpio %d direction not set to output\n",
+		       phy->reset_gpio);
+		return err;
+	}
+
+	phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0);
+	if (!phy->ulpi) {
+		dev_err(phy->dev, "otg_ulpi_create returned NULL\n");
+		err = -ENOMEM;
+		return err;
+	}
+
+	phy->ulpi->io_priv = phy->regs + ULPI_VIEWPORT;
+	return 0;
+}
+
+static int tegra_usb_phy_init(struct tegra_usb_phy *phy)
+{
+	unsigned long parent_rate;
+	int i;
+	int err;
+
+	if (!phy->is_ulpi_phy) {
+		if (phy->is_legacy_phy)
+			phy->config = &utmip_default[0];
 		else
-			phy->mode = TEGRA_USB_PHY_MODE_DEVICE;
-	} else
-		phy->mode = TEGRA_USB_PHY_MODE_OTG;
-
-	if (!phy->config) {
-		if (phy->is_ulpi_phy) {
-			pr_err("%s: ulpi phy configuration missing", __func__);
-			err = -EINVAL;
-			goto err0;
-		} else {
-			phy->config = &utmip_default[instance];
-		}
+			phy->config = &utmip_default[2];
 	}
 
-	phy->pll_u = clk_get_sys(NULL, "pll_u");
+	phy->pll_u = devm_clk_get(phy->dev, "pll_u");
 	if (IS_ERR(phy->pll_u)) {
 		pr_err("Can't get pll_u clock\n");
-		err = PTR_ERR(phy->pll_u);
-		goto err0;
+		return PTR_ERR(phy->pll_u);
 	}
-	clk_prepare_enable(phy->pll_u);
+
+	err = clk_prepare_enable(phy->pll_u);
+	if (err)
+		return err;
 
 	parent_rate = clk_get_rate(clk_get_parent(phy->pll_u));
 	for (i = 0; i < ARRAY_SIZE(tegra_freq_table); i++) {
@@ -779,23 +697,22 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
 	if (!phy->freq) {
 		pr_err("invalid pll_u parent rate %ld\n", parent_rate);
 		err = -EINVAL;
-		goto err1;
+		goto fail;
 	}
 
-	phy->u_phy.init = tegra_phy_init;
-	phy->u_phy.shutdown = tegra_usb_phy_close;
-	phy->u_phy.set_suspend = tegra_usb_phy_suspend;
+	if (phy->is_ulpi_phy)
+		err = ulpi_open(phy);
+	else
+		err = utmip_pad_open(phy);
+	if (err < 0)
+		goto fail;
 
-	return phy;
+	return 0;
 
-err1:
+fail:
 	clk_disable_unprepare(phy->pll_u);
-	clk_put(phy->pll_u);
-err0:
-	kfree(phy);
-	return ERR_PTR(err);
+	return err;
 }
-EXPORT_SYMBOL_GPL(tegra_usb_phy_open);
 
 void tegra_usb_phy_preresume(struct usb_phy *x)
 {
@@ -834,3 +751,121 @@ void tegra_ehci_phy_restore_end(struct usb_phy *x)
 }
 EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_end);
 
+static int tegra_usb_phy_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct tegra_usb_phy *tegra_phy = NULL;
+	struct device_node *np = pdev->dev.of_node;
+	int err;
+
+	tegra_phy = devm_kzalloc(&pdev->dev, sizeof(*tegra_phy), GFP_KERNEL);
+	if (!tegra_phy) {
+		dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n");
+		return -ENOMEM;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "Failed to get I/O memory\n");
+		return  -ENXIO;
+	}
+
+	tegra_phy->regs = devm_ioremap(&pdev->dev, res->start,
+		resource_size(res));
+	if (!tegra_phy->regs) {
+		dev_err(&pdev->dev, "Failed to remap I/O memory\n");
+		return -ENOMEM;
+	}
+
+	tegra_phy->is_legacy_phy =
+		of_property_read_bool(np, "nvidia,has-legacy-mode");
+
+	err = of_property_match_string(np, "phy_type", "ulpi");
+	if (err < 0) {
+		tegra_phy->is_ulpi_phy = false;
+
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+		if (!res) {
+			dev_err(&pdev->dev, "Failed to get UTMI Pad regs\n");
+			return  -ENXIO;
+		}
+
+		tegra_phy->pad_regs = devm_ioremap(&pdev->dev, res->start,
+			resource_size(res));
+		if (!tegra_phy->regs) {
+			dev_err(&pdev->dev, "Failed to remap UTMI Pad regs\n");
+			return -ENOMEM;
+		}
+	} else {
+		tegra_phy->is_ulpi_phy = true;
+
+		tegra_phy->reset_gpio =
+			of_get_named_gpio(np, "nvidia,phy-reset-gpio", 0);
+		if (!gpio_is_valid(tegra_phy->reset_gpio)) {
+			dev_err(&pdev->dev, "invalid gpio: %d\n",
+				tegra_phy->reset_gpio);
+			return tegra_phy->reset_gpio;
+		}
+	}
+
+	err = of_property_match_string(np, "dr_mode", "otg");
+	if (err < 0) {
+		err = of_property_match_string(np, "dr_mode", "peripheral");
+		if (err < 0)
+			tegra_phy->mode = TEGRA_USB_PHY_MODE_HOST;
+		else
+			tegra_phy->mode = TEGRA_USB_PHY_MODE_DEVICE;
+	} else
+		tegra_phy->mode = TEGRA_USB_PHY_MODE_OTG;
+
+	tegra_phy->dev = &pdev->dev;
+	err = tegra_usb_phy_init(tegra_phy);
+	if (err < 0)
+		return err;
+
+	tegra_phy->u_phy.shutdown = tegra_usb_phy_close;
+	tegra_phy->u_phy.set_suspend = tegra_usb_phy_suspend;
+
+	dev_set_drvdata(&pdev->dev, tegra_phy);
+	return 0;
+}
+
+static struct of_device_id tegra_usb_phy_id_table[] = {
+	{ .compatible = "nvidia,tegra20-usb-phy", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, tegra_usb_phy_id_table);
+
+static struct platform_driver tegra_usb_phy_driver = {
+	.probe		= tegra_usb_phy_probe,
+	.driver		= {
+		.name	= "tegra-phy",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(tegra_usb_phy_id_table),
+	},
+};
+module_platform_driver(tegra_usb_phy_driver);
+
+static int tegra_usb_phy_match(struct device *dev, void *data)
+{
+	struct tegra_usb_phy *tegra_phy = dev_get_drvdata(dev);
+	struct device_node *dn = data;
+
+	return (tegra_phy->dev->of_node == dn) ? 1 : 0;
+}
+
+struct usb_phy *tegra_usb_get_phy(struct device_node *dn)
+{
+	struct device *dev;
+	struct tegra_usb_phy *tegra_phy;
+
+	dev = driver_find_device(&tegra_usb_phy_driver.driver, NULL, dn,
+				 tegra_usb_phy_match);
+	if (!dev)
+		return ERR_PTR(-EPROBE_DEFER);
+
+	tegra_phy = dev_get_drvdata(dev);
+
+	return &tegra_phy->u_phy;
+}
+EXPORT_SYMBOL_GPL(tegra_usb_get_phy);
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index 97d123c4d7cc..0cd15d2df53d 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -63,14 +63,9 @@ struct tegra_usb_phy {
 	bool is_legacy_phy;
 	bool is_ulpi_phy;
 	int reset_gpio;
-	void (*set_pts)(struct usb_phy *x, u8 pts_val);
-	void (*set_phcd)(struct usb_phy *x, bool enable);
 };
 
-struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
-	void __iomem *regs, void *config,
-	void (*set_pts)(struct usb_phy *x, u8 pts_val),
-	void (*set_phcd)(struct usb_phy *x, bool enable));
+struct usb_phy *tegra_usb_get_phy(struct device_node *dn);
 
 void tegra_usb_phy_preresume(struct usb_phy *phy);
 
@@ -81,4 +76,8 @@ void tegra_ehci_phy_restore_start(struct usb_phy *phy,
 
 void tegra_ehci_phy_restore_end(struct usb_phy *phy);
 
+void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val);
+
+void tegra_ehci_set_phcd(struct usb_phy *x, bool enable);
+
 #endif /* __TEGRA_USB_PHY_H */
-- 
cgit v1.2.3


From e8e44a4896a5f0bde1af36a31b7ec662bdaa44ef Mon Sep 17 00:00:00 2001
From: Dongjin Kim <tobetter@gmail.com>
Date: Wed, 22 May 2013 05:20:08 +0900
Subject: usb: misc: usb3503: Add to select the ports to disable

This patch is to disable the USB ports unconnected to USB3503. In order to
disable the port, 'port_off_mask' must be set.

* Disable PORT1 only
	.port_off_mask = USB3503_OFF_PORT1;

* Disable PORT1 and PORT3 only
	.port_off_mask = USB3503_OFF_PORT1 | USB3503_OFF_PORT3;

* Enables all ports
	.port_off_mask = 0;

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/usb3503.c            | 19 ++++++++++---------
 include/linux/platform_data/usb3503.h |  5 +++++
 2 files changed, 15 insertions(+), 9 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c
index d3a1cce1bf9c..ab24bb345979 100644
--- a/drivers/usb/misc/usb3503.c
+++ b/drivers/usb/misc/usb3503.c
@@ -42,9 +42,6 @@
 #define USB3503_NRD		0x09
 
 #define USB3503_PDS		0x0a
-#define USB3503_PORT1		(1 << 1)
-#define USB3503_PORT2		(1 << 2)
-#define USB3503_PORT3		(1 << 3)
 
 #define USB3503_SP_ILOCK	0xe7
 #define USB3503_SPILOCK_CONNECT	(1 << 1)
@@ -56,6 +53,7 @@
 struct usb3503 {
 	enum usb3503_mode	mode;
 	struct i2c_client	*client;
+	u8	port_off_mask;
 	int	gpio_intn;
 	int	gpio_reset;
 	int	gpio_connect;
@@ -134,12 +132,14 @@ static int usb3503_switch_mode(struct usb3503 *hub, enum usb3503_mode mode)
 			goto err_hubmode;
 		}
 
-		/* PDS : Port2,3 Disable For Self Powered Operation */
-		err = usb3503_set_bits(i2c, USB3503_PDS,
-				(USB3503_PORT2 | USB3503_PORT3));
-		if (err < 0) {
-			dev_err(&i2c->dev, "PDS failed (%d)\n", err);
-			goto err_hubmode;
+		/* PDS : Disable For Self Powered Operation */
+		if (hub->port_off_mask) {
+			err = usb3503_set_bits(i2c, USB3503_PDS,
+					hub->port_off_mask);
+			if (err < 0) {
+				dev_err(&i2c->dev, "PDS failed (%d)\n", err);
+				goto err_hubmode;
+			}
 		}
 
 		/* CFG1 : SELF_BUS_PWR -> Self-Powerd operation */
@@ -197,6 +197,7 @@ static int usb3503_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 	hub->client = i2c;
 
 	if (pdata) {
+		hub->port_off_mask	= pdata->port_off_mask;
 		hub->gpio_intn		= pdata->gpio_intn;
 		hub->gpio_connect	= pdata->gpio_connect;
 		hub->gpio_reset		= pdata->gpio_reset;
diff --git a/include/linux/platform_data/usb3503.h b/include/linux/platform_data/usb3503.h
index 85dcc709f7e9..1d1b6ef871f6 100644
--- a/include/linux/platform_data/usb3503.h
+++ b/include/linux/platform_data/usb3503.h
@@ -3,6 +3,10 @@
 
 #define USB3503_I2C_NAME	"usb3503"
 
+#define USB3503_OFF_PORT1	(1 << 1)
+#define USB3503_OFF_PORT2	(1 << 2)
+#define USB3503_OFF_PORT3	(1 << 3)
+
 enum usb3503_mode {
 	USB3503_MODE_UNKNOWN,
 	USB3503_MODE_HUB,
@@ -11,6 +15,7 @@ enum usb3503_mode {
 
 struct usb3503_platform_data {
 	enum usb3503_mode	initial_mode;
+	u8	port_off_mask;
 	int	gpio_intn;
 	int	gpio_connect;
 	int	gpio_reset;
-- 
cgit v1.2.3


From 1a81f8814cbc79125fe50456de6adf048101af9b Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Fri, 31 May 2013 14:16:13 -0500
Subject: Allow the USB HCD to create Wireless USB root hubs

This patch adds Wireless USB root hub support to the USB HCD.  It allows
the HWA to create its root hub which previously failed because the HCD
treated wireless root hubs the same as USB2 high speed hubs.  The creation
of the root hub would fail in that case due to lack of TTs which wireless
root hubs do not support.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c    | 28 ++++++++++++++++++++++++++++
 drivers/usb/host/hwa-hc.c |  2 +-
 include/linux/usb/hcd.h   |  1 +
 3 files changed, 30 insertions(+), 1 deletion(-)

(limited to 'include/linux')

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index d53547d2e4c7..014dc996b4f6 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -149,6 +149,27 @@ static const u8 usb3_rh_dev_descriptor[18] = {
 	0x01        /*  __u8  bNumConfigurations; */
 };
 
+/* usb 2.5 (wireless USB 1.0) root hub device descriptor */
+static const u8 usb25_rh_dev_descriptor[18] = {
+	0x12,       /*  __u8  bLength; */
+	0x01,       /*  __u8  bDescriptorType; Device */
+	0x50, 0x02, /*  __le16 bcdUSB; v2.5 */
+
+	0x09,	    /*  __u8  bDeviceClass; HUB_CLASSCODE */
+	0x00,	    /*  __u8  bDeviceSubClass; */
+	0x00,       /*  __u8  bDeviceProtocol; [ usb 2.0 no TT ] */
+	0xFF,       /*  __u8  bMaxPacketSize0; always 0xFF (WUSB Spec 7.4.1). */
+
+	0x6b, 0x1d, /*  __le16 idVendor; Linux Foundation 0x1d6b */
+	0x02, 0x00, /*  __le16 idProduct; device 0x0002 */
+	KERNEL_VER, KERNEL_REL, /*  __le16 bcdDevice */
+
+	0x03,       /*  __u8  iManufacturer; */
+	0x02,       /*  __u8  iProduct; */
+	0x01,       /*  __u8  iSerialNumber; */
+	0x01        /*  __u8  bNumConfigurations; */
+};
+
 /* usb 2.0 root hub device descriptor */
 static const u8 usb2_rh_dev_descriptor [18] = {
 	0x12,       /*  __u8  bLength; */
@@ -527,6 +548,9 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 			case HCD_USB3:
 				bufp = usb3_rh_dev_descriptor;
 				break;
+			case HCD_USB25:
+				bufp = usb25_rh_dev_descriptor;
+				break;
 			case HCD_USB2:
 				bufp = usb2_rh_dev_descriptor;
 				break;
@@ -546,6 +570,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 				bufp = ss_rh_config_descriptor;
 				len = sizeof ss_rh_config_descriptor;
 				break;
+			case HCD_USB25:
 			case HCD_USB2:
 				bufp = hs_rh_config_descriptor;
 				len = sizeof hs_rh_config_descriptor;
@@ -2511,6 +2536,9 @@ int usb_add_hcd(struct usb_hcd *hcd,
 	case HCD_USB2:
 		rhdev->speed = USB_SPEED_HIGH;
 		break;
+	case HCD_USB25:
+		rhdev->speed = USB_SPEED_WIRELESS;
+		break;
 	case HCD_USB3:
 		rhdev->speed = USB_SPEED_SUPER;
 		break;
diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index 104730dabd2d..1452dd5952a6 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -577,7 +577,7 @@ static struct hc_driver hwahc_hc_driver = {
 	.product_desc = "Wireless USB HWA host controller",
 	.hcd_priv_size = sizeof(struct hwahc) - sizeof(struct usb_hcd),
 	.irq = NULL,			/* FIXME */
-	.flags = HCD_USB2,		/* FIXME */
+	.flags = HCD_USB25,
 	.reset = hwahc_op_reset,
 	.start = hwahc_op_start,
 	.stop = hwahc_op_stop,
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index f5f5c7dfda90..1e88377e22f4 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -218,6 +218,7 @@ struct hc_driver {
 #define	HCD_SHARED	0x0004		/* Two (or more) usb_hcds share HW */
 #define	HCD_USB11	0x0010		/* USB 1.1 */
 #define	HCD_USB2	0x0020		/* USB 2.0 */
+#define	HCD_USB25	0x0030		/* Wireless USB 1.0 (USB 2.5)*/
 #define	HCD_USB3	0x0040		/* USB 3.0 */
 #define	HCD_MASK	0x0070
 
-- 
cgit v1.2.3


From a558ccdcc71c7770c5e80c926a31cfe8a3892a09 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Thu, 23 May 2013 17:14:30 +0300
Subject: usb: xhci: add USB2 Link power management BESL support

usb 2.0 devices with link power managment (LPM) can describe their idle link
timeouts either in BESL or HIRD format, so far xHCI has only supported HIRD but
later xHCI errata add BESL support as well

BESL timeouts need to inform exit latency changes with an evaluate
context command the same way USB 3.0 link PM code does.
The same xhci_change_max_exit_latency() function is used as with USB3
but code is pulled out from #ifdef CONFIG_PM as USB2.0 BESL LPM
funcionality does not depend on CONFIG_PM.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ext-caps.h |   1 +
 drivers/usb/host/xhci.c          | 204 +++++++++++++++++++++++++++------------
 drivers/usb/host/xhci.h          |  21 ++++
 include/linux/usb.h              |   2 +
 4 files changed, 164 insertions(+), 64 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h
index 377f4242dabb..8d7a1324e2f3 100644
--- a/drivers/usb/host/xhci-ext-caps.h
+++ b/drivers/usb/host/xhci-ext-caps.h
@@ -71,6 +71,7 @@
 
 /* USB 2.0 xHCI 1.0 hardware LMP capability - section 7.2.2.1.3.2 */
 #define XHCI_HLC               (1 << 19)
+#define XHCI_BLC               (1 << 19)
 
 /* command register values to disable interrupts and halt the HC */
 /* start/stop HC execution - do not write unless HC is halted*/
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 31ce422af00a..3d34a0eed088 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3815,6 +3815,56 @@ int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1)
 	return raw_port;
 }
 
+/*
+ * Issue an Evaluate Context command to change the Maximum Exit Latency in the
+ * slot context.  If that succeeds, store the new MEL in the xhci_virt_device.
+ */
+static int xhci_change_max_exit_latency(struct xhci_hcd *xhci,
+			struct usb_device *udev, u16 max_exit_latency)
+{
+	struct xhci_virt_device *virt_dev;
+	struct xhci_command *command;
+	struct xhci_input_control_ctx *ctrl_ctx;
+	struct xhci_slot_ctx *slot_ctx;
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&xhci->lock, flags);
+	if (max_exit_latency == xhci->devs[udev->slot_id]->current_mel) {
+		spin_unlock_irqrestore(&xhci->lock, flags);
+		return 0;
+	}
+
+	/* Attempt to issue an Evaluate Context command to change the MEL. */
+	virt_dev = xhci->devs[udev->slot_id];
+	command = xhci->lpm_command;
+	xhci_slot_copy(xhci, command->in_ctx, virt_dev->out_ctx);
+	spin_unlock_irqrestore(&xhci->lock, flags);
+
+	ctrl_ctx = xhci_get_input_control_ctx(xhci, command->in_ctx);
+	ctrl_ctx->add_flags |= cpu_to_le32(SLOT_FLAG);
+	slot_ctx = xhci_get_slot_ctx(xhci, command->in_ctx);
+	slot_ctx->dev_info2 &= cpu_to_le32(~((u32) MAX_EXIT));
+	slot_ctx->dev_info2 |= cpu_to_le32(max_exit_latency);
+
+	xhci_dbg(xhci, "Set up evaluate context for LPM MEL change.\n");
+	xhci_dbg(xhci, "Slot %u Input Context:\n", udev->slot_id);
+	xhci_dbg_ctx(xhci, command->in_ctx, 0);
+
+	/* Issue and wait for the evaluate context command. */
+	ret = xhci_configure_endpoint(xhci, udev, command,
+			true, true);
+	xhci_dbg(xhci, "Slot %u Output Context:\n", udev->slot_id);
+	xhci_dbg_ctx(xhci, virt_dev->out_ctx, 0);
+
+	if (!ret) {
+		spin_lock_irqsave(&xhci->lock, flags);
+		virt_dev->current_mel = max_exit_latency;
+		spin_unlock_irqrestore(&xhci->lock, flags);
+	}
+	return ret;
+}
+
 #ifdef CONFIG_PM_RUNTIME
 
 /* BESL to HIRD Encoding array for USB2 LPM */
@@ -3856,6 +3906,28 @@ static int xhci_calculate_hird_besl(struct xhci_hcd *xhci,
 	return besl;
 }
 
+/* Calculate BESLD, L1 timeout and HIRDM for USB2 PORTHLPMC */
+static int xhci_calculate_usb2_hw_lpm_params(struct usb_device *udev)
+{
+	u32 field;
+	int l1;
+	int besld = 0;
+	int hirdm = 0;
+
+	field = le32_to_cpu(udev->bos->ext_cap->bmAttributes);
+
+	/* xHCI l1 is set in steps of 256us, xHCI 1.0 section 5.4.11.2 */
+	l1 = XHCI_L1_TIMEOUT / 256;
+
+	/* device has preferred BESLD */
+	if (field & USB_BESL_DEEP_VALID) {
+		besld = USB_GET_BESL_DEEP(field);
+		hirdm = 1;
+	}
+
+	return PORT_BESLD(besld) | PORT_L1_TIMEOUT(l1) | PORT_HIRDM(hirdm);
+}
+
 static int xhci_usb2_software_lpm_test(struct usb_hcd *hcd,
 					struct usb_device *udev)
 {
@@ -3988,11 +4060,12 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	__le32 __iomem	**port_array;
-	__le32 __iomem	*pm_addr;
-	u32		temp;
+	__le32 __iomem	*pm_addr, *hlpm_addr;
+	u32		pm_val, hlpm_val, field;
 	unsigned int	port_num;
 	unsigned long	flags;
-	int		hird;
+	int		hird, exit_latency;
+	int		ret;
 
 	if (hcd->speed == HCD_USB3 || !xhci->hw_lpm_support ||
 			!udev->lpm_capable)
@@ -4010,23 +4083,73 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 	port_array = xhci->usb2_ports;
 	port_num = udev->portnum - 1;
 	pm_addr = port_array[port_num] + PORTPMSC;
-	temp = xhci_readl(xhci, pm_addr);
+	pm_val = xhci_readl(xhci, pm_addr);
+	hlpm_addr = port_array[port_num] + PORTHLPMC;
+	field = le32_to_cpu(udev->bos->ext_cap->bmAttributes);
 
 	xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n",
 			enable ? "enable" : "disable", port_num);
 
-	hird = xhci_calculate_hird_besl(xhci, udev);
-
 	if (enable) {
-		temp &= ~PORT_HIRD_MASK;
-		temp |= PORT_HIRD(hird) | PORT_RWE;
-		xhci_writel(xhci, temp, pm_addr);
-		temp = xhci_readl(xhci, pm_addr);
-		temp |= PORT_HLE;
-		xhci_writel(xhci, temp, pm_addr);
+		/* Host supports BESL timeout instead of HIRD */
+		if (udev->usb2_hw_lpm_besl_capable) {
+			/* if device doesn't have a preferred BESL value use a
+			 * default one which works with mixed HIRD and BESL
+			 * systems. See XHCI_DEFAULT_BESL definition in xhci.h
+			 */
+			if ((field & USB_BESL_SUPPORT) &&
+			    (field & USB_BESL_BASELINE_VALID))
+				hird = USB_GET_BESL_BASELINE(field);
+			else
+				hird = XHCI_DEFAULT_BESL;
+
+			exit_latency = xhci_besl_encoding[hird];
+			spin_unlock_irqrestore(&xhci->lock, flags);
+
+			/* USB 3.0 code dedicate one xhci->lpm_command->in_ctx
+			 * input context for link powermanagement evaluate
+			 * context commands. It is protected by hcd->bandwidth
+			 * mutex and is shared by all devices. We need to set
+			 * the max ext latency in USB 2 BESL LPM as well, so
+			 * use the same mutex and xhci_change_max_exit_latency()
+			 */
+			mutex_lock(hcd->bandwidth_mutex);
+			ret = xhci_change_max_exit_latency(xhci, udev,
+							   exit_latency);
+			mutex_unlock(hcd->bandwidth_mutex);
+
+			if (ret < 0)
+				return ret;
+			spin_lock_irqsave(&xhci->lock, flags);
+
+			hlpm_val = xhci_calculate_usb2_hw_lpm_params(udev);
+			xhci_writel(xhci, hlpm_val, hlpm_addr);
+			/* flush write */
+			xhci_readl(xhci, hlpm_addr);
+		} else {
+			hird = xhci_calculate_hird_besl(xhci, udev);
+		}
+
+		pm_val &= ~PORT_HIRD_MASK;
+		pm_val |= PORT_HIRD(hird) | PORT_RWE;
+		xhci_writel(xhci, pm_val, pm_addr);
+		pm_val = xhci_readl(xhci, pm_addr);
+		pm_val |= PORT_HLE;
+		xhci_writel(xhci, pm_val, pm_addr);
+		/* flush write */
+		xhci_readl(xhci, pm_addr);
 	} else {
-		temp &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK);
-		xhci_writel(xhci, temp, pm_addr);
+		pm_val &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK);
+		xhci_writel(xhci, pm_val, pm_addr);
+		/* flush write */
+		xhci_readl(xhci, pm_addr);
+		if (udev->usb2_hw_lpm_besl_capable) {
+			spin_unlock_irqrestore(&xhci->lock, flags);
+			mutex_lock(hcd->bandwidth_mutex);
+			xhci_change_max_exit_latency(xhci, udev, 0);
+			mutex_unlock(hcd->bandwidth_mutex);
+			return 0;
+		}
 	}
 
 	spin_unlock_irqrestore(&xhci->lock, flags);
@@ -4068,6 +4191,9 @@ int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
 		if (xhci->hw_lpm_support == 1 &&
 		    xhci_check_usb2_port_capability(xhci, portnum, XHCI_HLC)) {
 			udev->usb2_hw_lpm_capable = 1;
+			if (xhci_check_usb2_port_capability(xhci, portnum,
+							    XHCI_BLC))
+				udev->usb2_hw_lpm_besl_capable = 1;
 			ret = xhci_set_usb2_hardware_lpm(hcd, udev, 1);
 			if (!ret)
 				udev->usb2_hw_lpm_enabled = 1;
@@ -4398,56 +4524,6 @@ static u16 xhci_calculate_lpm_timeout(struct usb_hcd *hcd,
 	return timeout;
 }
 
-/*
- * Issue an Evaluate Context command to change the Maximum Exit Latency in the
- * slot context.  If that succeeds, store the new MEL in the xhci_virt_device.
- */
-static int xhci_change_max_exit_latency(struct xhci_hcd *xhci,
-			struct usb_device *udev, u16 max_exit_latency)
-{
-	struct xhci_virt_device *virt_dev;
-	struct xhci_command *command;
-	struct xhci_input_control_ctx *ctrl_ctx;
-	struct xhci_slot_ctx *slot_ctx;
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&xhci->lock, flags);
-	if (max_exit_latency == xhci->devs[udev->slot_id]->current_mel) {
-		spin_unlock_irqrestore(&xhci->lock, flags);
-		return 0;
-	}
-
-	/* Attempt to issue an Evaluate Context command to change the MEL. */
-	virt_dev = xhci->devs[udev->slot_id];
-	command = xhci->lpm_command;
-	xhci_slot_copy(xhci, command->in_ctx, virt_dev->out_ctx);
-	spin_unlock_irqrestore(&xhci->lock, flags);
-
-	ctrl_ctx = xhci_get_input_control_ctx(xhci, command->in_ctx);
-	ctrl_ctx->add_flags |= cpu_to_le32(SLOT_FLAG);
-	slot_ctx = xhci_get_slot_ctx(xhci, command->in_ctx);
-	slot_ctx->dev_info2 &= cpu_to_le32(~((u32) MAX_EXIT));
-	slot_ctx->dev_info2 |= cpu_to_le32(max_exit_latency);
-
-	xhci_dbg(xhci, "Set up evaluate context for LPM MEL change.\n");
-	xhci_dbg(xhci, "Slot %u Input Context:\n", udev->slot_id);
-	xhci_dbg_ctx(xhci, command->in_ctx, 0);
-
-	/* Issue and wait for the evaluate context command. */
-	ret = xhci_configure_endpoint(xhci, udev, command,
-			true, true);
-	xhci_dbg(xhci, "Slot %u Output Context:\n", udev->slot_id);
-	xhci_dbg_ctx(xhci, virt_dev->out_ctx, 0);
-
-	if (!ret) {
-		spin_lock_irqsave(&xhci->lock, flags);
-		virt_dev->current_mel = max_exit_latency;
-		spin_unlock_irqrestore(&xhci->lock, flags);
-	}
-	return ret;
-}
-
 static int calculate_max_exit_latency(struct usb_device *udev,
 		enum usb3_link_state state_changed,
 		u16 hub_encoded_timeout)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 01325710424c..c306849eb299 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -386,6 +386,27 @@ struct xhci_op_regs {
 #define	PORT_L1DS(p)		(((p) & 0xff) << 8)
 #define	PORT_HLE		(1 << 16)
 
+
+/* USB2 Protocol PORTHLPMC */
+#define PORT_HIRDM(p)((p) & 3)
+#define PORT_L1_TIMEOUT(p)(((p) & 0xff) << 2)
+#define PORT_BESLD(p)(((p) & 0xf) << 10)
+
+/* use 512 microseconds as USB2 LPM L1 default timeout. */
+#define XHCI_L1_TIMEOUT		512
+
+/* Set default HIRD/BESL value to 4 (350/400us) for USB2 L1 LPM resume latency.
+ * Safe to use with mixed HIRD and BESL systems (host and device) and is used
+ * by other operating systems.
+ *
+ * XHCI 1.0 errata 8/14/12 Table 13 notes:
+ * "Software should choose xHC BESL/BESLD field values that do not violate a
+ * device's resume latency requirements,
+ * e.g. not program values > '4' if BLC = '1' and a HIRD device is attached,
+ * or not program values < '4' if BLC = '0' and a BESL device is attached.
+ */
+#define XHCI_DEFAULT_BESL	4
+
 /**
  * struct xhci_intr_reg - Interrupt Register Set
  * @irq_pending:	IMAN - Interrupt Management Register.  Used to enable
diff --git a/include/linux/usb.h b/include/linux/usb.h
index b424e5318f20..fe444989668a 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -468,6 +468,7 @@ struct usb3_lpm_parameters {
  * @wusb: device is Wireless USB
  * @lpm_capable: device supports LPM
  * @usb2_hw_lpm_capable: device can perform USB2 hardware LPM
+ * @usb2_hw_lpm_besl_capable: device can perform USB2 hardware BESL LPM
  * @usb2_hw_lpm_enabled: USB2 hardware LPM enabled
  * @usb3_lpm_enabled: USB3 hardware LPM enabled
  * @string_langid: language ID for strings
@@ -538,6 +539,7 @@ struct usb_device {
 	unsigned wusb:1;
 	unsigned lpm_capable:1;
 	unsigned usb2_hw_lpm_capable:1;
+	unsigned usb2_hw_lpm_besl_capable:1;
 	unsigned usb2_hw_lpm_enabled:1;
 	unsigned usb3_lpm_enabled:1;
 	int string_langid;
-- 
cgit v1.2.3


From 17f34867e98d2fb0c03918faab79efb989fa134b Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Thu, 23 May 2013 17:14:31 +0300
Subject: usb: add usb2 Link PM variables to sysfs and usb_device

Adds abitilty to tune L1 timeout (inactivity timer for usb2 link sleep)
and BESL (best effort service latency)via sysfs.

This also adds a new usb2_lpm_parameters structure with those variables to
struct usb_device.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 Documentation/ABI/testing/sysfs-bus-usb | 27 +++++++++++++++++
 drivers/usb/core/sysfs.c                | 54 +++++++++++++++++++++++++++++++++
 drivers/usb/host/xhci.c                 |  6 ++--
 include/linux/usb.h                     | 18 +++++++++++
 4 files changed, 103 insertions(+), 2 deletions(-)

(limited to 'include/linux')

diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index f093e59cbe5f..9759b8c91332 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -236,3 +236,30 @@ Description:
 		This attribute is to expose these information to user space.
 		The file will read "hotplug", "wired" and "not used" if the
 		information is available, and "unknown" otherwise.
+
+What:		/sys/bus/usb/devices/.../power/usb2_lpm_l1_timeout
+Date:		May 2013
+Contact:	Mathias Nyman <mathias.nyman@linux.intel.com>
+Description:
+		USB 2.0 devices may support hardware link power management (LPM)
+		L1 sleep state. The usb2_lpm_l1_timeout attribute allows
+		tuning the timeout for L1 inactivity timer (LPM timer), e.g.
+		needed inactivity time before host requests the device to go to L1 sleep.
+		Useful for power management tuning.
+		Supported values are 0 - 65535 microseconds.
+
+What:		/sys/bus/usb/devices/.../power/usb2_lpm_besl
+Date:		May 2013
+Contact:	Mathias Nyman <mathias.nyman@linux.intel.com>
+Description:
+		USB 2.0 devices that support hardware link power management (LPM)
+		L1 sleep state now use a best effort service latency value (BESL) to
+		indicate the best effort to resumption of service to the device after the
+		initiation of the resume event.
+		If the device does not have a preferred besl value then the host can select
+		one instead. This usb2_lpm_besl attribute allows to tune the host selected besl
+		value in order to tune power saving and service latency.
+
+		Supported values are 0 - 15.
+		More information on how besl values map to microseconds can be found in
+		USB 2.0 ECN Errata for Link Power Management, section 4.10)
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index aa38db44818a..d9284b998bd7 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -497,8 +497,62 @@ set_usb2_hardware_lpm(struct device *dev, struct device_attribute *attr,
 static DEVICE_ATTR(usb2_hardware_lpm, S_IRUGO | S_IWUSR, show_usb2_hardware_lpm,
 			set_usb2_hardware_lpm);
 
+static ssize_t
+show_usb2_lpm_l1_timeout(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	return sprintf(buf, "%d\n", udev->l1_params.timeout);
+}
+
+static ssize_t
+set_usb2_lpm_l1_timeout(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	u16 timeout;
+
+	if (kstrtou16(buf, 0, &timeout))
+		return -EINVAL;
+
+	udev->l1_params.timeout = timeout;
+
+	return count;
+}
+
+static DEVICE_ATTR(usb2_lpm_l1_timeout, S_IRUGO | S_IWUSR,
+		   show_usb2_lpm_l1_timeout, set_usb2_lpm_l1_timeout);
+
+static ssize_t
+show_usb2_lpm_besl(struct device *dev, struct device_attribute *attr,
+		   char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	return sprintf(buf, "%d\n", udev->l1_params.besl);
+}
+
+static ssize_t
+set_usb2_lpm_besl(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	u8 besl;
+
+	if (kstrtou8(buf, 0, &besl) || besl > 15)
+		return -EINVAL;
+
+	udev->l1_params.besl = besl;
+
+	return count;
+}
+
+static DEVICE_ATTR(usb2_lpm_besl, S_IRUGO | S_IWUSR,
+		   show_usb2_lpm_besl, set_usb2_lpm_besl);
+
 static struct attribute *usb2_hardware_lpm_attr[] = {
 	&dev_attr_usb2_hardware_lpm.attr,
+	&dev_attr_usb2_lpm_l1_timeout.attr,
+	&dev_attr_usb2_lpm_besl.attr,
 	NULL,
 };
 static struct attribute_group usb2_hardware_lpm_attr_group = {
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 3d34a0eed088..8be34f838bd4 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3917,7 +3917,7 @@ static int xhci_calculate_usb2_hw_lpm_params(struct usb_device *udev)
 	field = le32_to_cpu(udev->bos->ext_cap->bmAttributes);
 
 	/* xHCI l1 is set in steps of 256us, xHCI 1.0 section 5.4.11.2 */
-	l1 = XHCI_L1_TIMEOUT / 256;
+	l1 = udev->l1_params.timeout / 256;
 
 	/* device has preferred BESLD */
 	if (field & USB_BESL_DEEP_VALID) {
@@ -4101,7 +4101,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 			    (field & USB_BESL_BASELINE_VALID))
 				hird = USB_GET_BESL_BASELINE(field);
 			else
-				hird = XHCI_DEFAULT_BESL;
+				hird = udev->l1_params.besl;
 
 			exit_latency = xhci_besl_encoding[hird];
 			spin_unlock_irqrestore(&xhci->lock, flags);
@@ -4191,6 +4191,8 @@ int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
 		if (xhci->hw_lpm_support == 1 &&
 		    xhci_check_usb2_port_capability(xhci, portnum, XHCI_HLC)) {
 			udev->usb2_hw_lpm_capable = 1;
+			udev->l1_params.timeout = XHCI_L1_TIMEOUT;
+			udev->l1_params.besl = XHCI_DEFAULT_BESL;
 			if (xhci_check_usb2_port_capability(xhci, portnum,
 							    XHCI_BLC))
 				udev->usb2_hw_lpm_besl_capable = 1;
diff --git a/include/linux/usb.h b/include/linux/usb.h
index fe444989668a..a232b7ece1f6 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -393,6 +393,22 @@ enum usb_port_connect_type {
 	USB_PORT_NOT_USED,
 };
 
+/*
+ * USB 2.0 Link Power Management (LPM) parameters.
+ */
+struct usb2_lpm_parameters {
+	/* Best effort service latency indicate how long the host will drive
+	 * resume on an exit from L1.
+	 */
+	unsigned int besl;
+
+	/* Timeout value in microseconds for the L1 inactivity (LPM) timer.
+	 * When the timer counts to zero, the parent hub will initiate a LPM
+	 * transition to L1.
+	 */
+	int timeout;
+};
+
 /*
  * USB 3.0 Link Power Management (LPM) parameters.
  *
@@ -488,6 +504,7 @@ struct usb3_lpm_parameters {
  *	specific data for the device.
  * @slot_id: Slot ID assigned by xHCI
  * @removable: Device can be physically removed from this port
+ * @l1_params: best effor service latency for USB2 L1 LPM state, and L1 timeout.
  * @u1_params: exit latencies for USB3 U1 LPM state, and hub-initiated timeout.
  * @u2_params: exit latencies for USB3 U2 LPM state, and hub-initiated timeout.
  * @lpm_disable_count: Ref count used by usb_disable_lpm() and usb_enable_lpm()
@@ -568,6 +585,7 @@ struct usb_device {
 	struct wusb_dev *wusb_dev;
 	int slot_id;
 	enum usb_device_removable removable;
+	struct usb2_lpm_parameters l1_params;
 	struct usb3_lpm_parameters u1_params;
 	struct usb3_lpm_parameters u2_params;
 	unsigned lpm_disable_count;
-- 
cgit v1.2.3


From ee0218fa43d8d7b113f60299d4f66191e0e2d76b Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Thu, 6 Jun 2013 14:06:01 -0500
Subject: USB: wusbcore: add HWA-specific fields to usb_rpipe_descriptor

This patch adds the HWA specific members to struct usb_rpipe_descriptor
and sets them correctly based on the wireless endpoint compananion
descriptor.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-rpipe.c | 42 ++++++++++++++++++++---------------------
 include/linux/usb/wusb-wa.h     | 17 +++++++++++++----
 2 files changed, 34 insertions(+), 25 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c
index f0d546c5a089..9429c12e4bfd 100644
--- a/drivers/usb/wusbcore/wa-rpipe.c
+++ b/drivers/usb/wusbcore/wa-rpipe.c
@@ -251,8 +251,8 @@ static int __rpipe_reset(struct wahc *wa, unsigned index)
 static struct usb_wireless_ep_comp_descriptor epc0 = {
 	.bLength = sizeof(epc0),
 	.bDescriptorType = USB_DT_WIRELESS_ENDPOINT_COMP,
-/*	.bMaxBurst = 1, */
-	.bMaxSequence = 31,
+	.bMaxBurst = 1,
+	.bMaxSequence = 2,
 };
 
 /*
@@ -317,6 +317,7 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
 	struct device *dev = &wa->usb_iface->dev;
 	struct usb_device *usb_dev = urb->dev;
 	struct usb_wireless_ep_comp_descriptor *epcd;
+	u32 ack_window, epcd_max_sequence;
 	u8 unauth;
 
 	epcd = rpipe_epc_find(dev, ep);
@@ -333,8 +334,11 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
 	rpipe->descr.wBlocks = cpu_to_le16(16);		/* given */
 	/* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */
 	rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize);
-	rpipe->descr.bHSHubAddress = 0;			/* reserved: zero */
-	rpipe->descr.bHSHubPort = wusb_port_no_to_idx(urb->dev->portnum);
+
+	rpipe->descr.hwa_bMaxBurst = max(min_t(unsigned int,
+				epcd->bMaxBurst, 16U), 1U);
+	rpipe->descr.hwa_bDeviceInfoIndex =
+			wusb_port_no_to_idx(urb->dev->portnum);
 	/* FIXME: use maximum speed as supported or recommended by device */
 	rpipe->descr.bSpeed = usb_pipeendpoint(urb->pipe) == 0 ?
 		UWB_PHY_RATE_53 : UWB_PHY_RATE_200;
@@ -344,23 +348,24 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
 		le16_to_cpu(rpipe->descr.wRPipeIndex),
 		usb_pipeendpoint(urb->pipe), rpipe->descr.bSpeed);
 
-	/* see security.c:wusb_update_address() */
-	if (unlikely(urb->dev->devnum == 0x80))
-		rpipe->descr.bDeviceAddress = 0;
-	else
-		rpipe->descr.bDeviceAddress = urb->dev->devnum | unauth;
+	rpipe->descr.hwa_reserved = 0;
+
 	rpipe->descr.bEndpointAddress = ep->desc.bEndpointAddress;
 	/* FIXME: bDataSequence */
 	rpipe->descr.bDataSequence = 0;
-	/* FIXME: dwCurrentWindow */
-	rpipe->descr.dwCurrentWindow = cpu_to_le32(1);
-	/* FIXME: bMaxDataSequence */
-	rpipe->descr.bMaxDataSequence = epcd->bMaxSequence - 1;
+
+	/* start with base window of hwa_bMaxBurst bits starting at 0. */
+	ack_window = 0xFFFFFFFF >> (32 - rpipe->descr.hwa_bMaxBurst);
+	rpipe->descr.dwCurrentWindow = cpu_to_le32(ack_window);
+	epcd_max_sequence = max(min_t(unsigned int,
+			epcd->bMaxSequence, 32U), 2U);
+	rpipe->descr.bMaxDataSequence = epcd_max_sequence - 1;
 	rpipe->descr.bInterval = ep->desc.bInterval;
 	/* FIXME: bOverTheAirInterval */
 	rpipe->descr.bOverTheAirInterval = 0;	/* 0 if not isoc */
 	/* FIXME: xmit power & preamble blah blah */
-	rpipe->descr.bmAttribute = ep->desc.bmAttributes & 0x03;
+	rpipe->descr.bmAttribute = (ep->desc.bmAttributes &
+					USB_ENDPOINT_XFERTYPE_MASK);
 	/* rpipe->descr.bmCharacteristics RO */
 	/* FIXME: bmRetryOptions */
 	rpipe->descr.bmRetryOptions = 15;
@@ -387,10 +392,8 @@ static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa,
 			   const struct usb_host_endpoint *ep,
 			   const struct urb *urb, gfp_t gfp)
 {
-	int result = 0;		/* better code for lack of companion? */
+	int result = 0;
 	struct device *dev = &wa->usb_iface->dev;
-	struct usb_device *usb_dev = urb->dev;
-	u8 unauth = (usb_dev->wusb && !usb_dev->authenticated) ? 0x80 : 0;
 	u8 portnum = wusb_port_no_to_idx(urb->dev->portnum);
 
 #define AIM_CHECK(rdf, val, text)					\
@@ -403,13 +406,10 @@ static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa,
 			WARN_ON(1);					\
 		}							\
 	} while (0)
-	AIM_CHECK(wMaxPacketSize, cpu_to_le16(ep->desc.wMaxPacketSize),
-		  "(%u vs %u)");
-	AIM_CHECK(bHSHubPort, portnum, "(%u vs %u)");
+	AIM_CHECK(hwa_bDeviceInfoIndex, portnum, "(%u vs %u)");
 	AIM_CHECK(bSpeed, usb_pipeendpoint(urb->pipe) == 0 ?
 			UWB_PHY_RATE_53 : UWB_PHY_RATE_200,
 		  "(%u vs %u)");
-	AIM_CHECK(bDeviceAddress, urb->dev->devnum | unauth, "(%u vs %u)");
 	AIM_CHECK(bEndpointAddress, ep->desc.bEndpointAddress, "(%u vs %u)");
 	AIM_CHECK(bInterval, ep->desc.bInterval, "(%u vs %u)");
 	AIM_CHECK(bmAttribute, ep->desc.bmAttributes & 0x03, "(%u vs %u)");
diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h
index f9dec37f617b..6be985b2a434 100644
--- a/include/linux/usb/wusb-wa.h
+++ b/include/linux/usb/wusb-wa.h
@@ -92,11 +92,20 @@ struct usb_rpipe_descriptor {
 	__le16  wRPipeIndex;
 	__le16	wRequests;
 	__le16	wBlocks;		/* rw if 0 */
-	__le16	wMaxPacketSize;		/* rw? */
-	u8	bHSHubAddress;		/* reserved: 0 */
-	u8	bHSHubPort;		/* ??? FIXME ??? */
+	__le16	wMaxPacketSize;		/* rw */
+	union {
+		u8	dwa_bHSHubAddress;		/* rw: DWA. */
+		u8	hwa_bMaxBurst;			/* rw: HWA. */
+	};
+	union {
+		u8	dwa_bHSHubPort;		/*  rw: DWA. */
+		u8	hwa_bDeviceInfoIndex;	/*  rw: HWA. */
+	};
 	u8	bSpeed;			/* rw: xfer rate 'enum uwb_phy_rate' */
-	u8	bDeviceAddress;		/* rw: Target device address */
+	union {
+		u8 dwa_bDeviceAddress;	/* rw: DWA Target device address. */
+		u8 hwa_reserved;		/* rw: HWA. */
+	};
 	u8	bEndpointAddress;	/* rw: Target EP address */
 	u8	bDataSequence;		/* ro: Current Data sequence */
 	__le32	dwCurrentWindow;	/* ro */
-- 
cgit v1.2.3


From 1143832eca8f1d64da7d85642c956ae9d25c69e1 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 6 Jun 2013 10:32:00 -0700
Subject: USB: serial: ports: add minor and port number

The usb_serial_port structure had the number field, which was the minor
number for the port, which almost no one really cared about.  They
really wanted the number of the port within the device, which you had to
subtract from the minor of the parent usb_serial_device structure.  To
clean this up, provide the real minor number of the port, and the number
of the port within the serial device separately, as these numbers might
not be related in the future.

Bonus is that this cleans up a lot of logic in the drivers, and saves
lines overall.

Tested-by: Tobias Winter <tobias@linuxdingsda.de>
Reviewed-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

--
 drivers/staging/serqt_usb2/serqt_usb2.c |   21 +++--------
 drivers/usb/serial/ark3116.c            |    2 -
 drivers/usb/serial/bus.c                |    6 +--
 drivers/usb/serial/console.c            |    2 -
 drivers/usb/serial/cp210x.c             |    2 -
 drivers/usb/serial/cypress_m8.c         |    4 +-
 drivers/usb/serial/digi_acceleport.c    |    6 ---
 drivers/usb/serial/f81232.c             |    5 +-
 drivers/usb/serial/garmin_gps.c         |    6 +--
 drivers/usb/serial/io_edgeport.c        |   58 ++++++++++++--------------------
 drivers/usb/serial/io_ti.c              |   21 ++++-------
 drivers/usb/serial/keyspan.c            |   29 +++++++---------
 drivers/usb/serial/metro-usb.c          |    4 +-
 drivers/usb/serial/mos7720.c            |   37 +++++++++-----------
 drivers/usb/serial/mos7840.c            |   52 +++++++++-------------------
 drivers/usb/serial/opticon.c            |    2 -
 drivers/usb/serial/pl2303.c             |    2 -
 drivers/usb/serial/quatech2.c           |    7 +--
 drivers/usb/serial/sierra.c             |    2 -
 drivers/usb/serial/ti_usb_3410_5052.c   |   10 ++---
 drivers/usb/serial/usb-serial.c         |    7 ++-
 drivers/usb/serial/usb_wwan.c           |    2 -
 drivers/usb/serial/whiteheat.c          |   20 +++++------
 include/linux/usb/serial.h              |    6 ++-
 24 files changed, 133 insertions(+), 180 deletions(-)
---
 drivers/staging/serqt_usb2/serqt_usb2.c | 21 ++++--------
 drivers/usb/serial/ark3116.c            |  2 +-
 drivers/usb/serial/bus.c                |  6 ++--
 drivers/usb/serial/console.c            |  2 +-
 drivers/usb/serial/cp210x.c             |  2 --
 drivers/usb/serial/cypress_m8.c         |  4 +--
 drivers/usb/serial/digi_acceleport.c    |  6 +---
 drivers/usb/serial/f81232.c             |  5 ++-
 drivers/usb/serial/garmin_gps.c         |  6 ++--
 drivers/usb/serial/io_edgeport.c        | 58 +++++++++++++--------------------
 drivers/usb/serial/io_ti.c              | 21 +++++-------
 drivers/usb/serial/keyspan.c            | 29 ++++++++---------
 drivers/usb/serial/metro-usb.c          |  4 +--
 drivers/usb/serial/mos7720.c            | 37 ++++++++++-----------
 drivers/usb/serial/mos7840.c            | 52 ++++++++++-------------------
 drivers/usb/serial/opticon.c            |  2 +-
 drivers/usb/serial/pl2303.c             |  2 +-
 drivers/usb/serial/quatech2.c           |  7 ++--
 drivers/usb/serial/sierra.c             |  2 +-
 drivers/usb/serial/ti_usb_3410_5052.c   | 10 +++---
 drivers/usb/serial/usb-serial.c         |  7 ++--
 drivers/usb/serial/usb_wwan.c           |  2 +-
 drivers/usb/serial/whiteheat.c          | 20 ++++++------
 include/linux/usb/serial.h              |  6 ++--
 24 files changed, 133 insertions(+), 180 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c
index 8a6e5ea476e1..4f891dba2faa 100644
--- a/drivers/staging/serqt_usb2/serqt_usb2.c
+++ b/drivers/staging/serqt_usb2/serqt_usb2.c
@@ -873,7 +873,7 @@ static int qt_open(struct tty_struct *tty,
 	result = qt_get_device(serial, &port0->DeviceData);
 
 	/* Port specific setups */
-	result = qt_open_channel(serial, port->number, &ChannelData);
+	result = qt_open_channel(serial, port->port_number, &ChannelData);
 	if (result < 0) {
 		dev_dbg(&port->dev, "qt_open_channel failed\n");
 		return result;
@@ -888,7 +888,7 @@ static int qt_open(struct tty_struct *tty,
 	    (SERIAL_MSR_CTS | SERIAL_MSR_DSR | SERIAL_MSR_RI | SERIAL_MSR_CD);
 
 	/* Set Baud rate to default and turn off (default)flow control here */
-	result = qt_setuart(serial, port->number, DEFAULT_DIVISOR, DEFAULT_LCR);
+	result = qt_setuart(serial, port->port_number, DEFAULT_DIVISOR, DEFAULT_LCR);
 	if (result < 0) {
 		dev_dbg(&port->dev, "qt_setuart failed\n");
 		return result;
@@ -906,7 +906,6 @@ static int qt_open(struct tty_struct *tty,
 			qt_submit_urb_from_open(serial, port);
 	}
 
-	dev_dbg(&port->dev, "port number is %d\n", port->number);
 	dev_dbg(&port->dev, "serial number is %d\n", port->serial->minor);
 	dev_dbg(&port->dev,
 		"Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
@@ -1022,14 +1021,11 @@ static void qt_close(struct usb_serial_port *port)
 	/* Close uart channel */
 	status = qt_close_channel(serial, index);
 	if (status < 0)
-		dev_dbg(&port->dev,
-			"%s - port %d qt_close_channel failed.\n",
-			__func__, port->number);
+		dev_dbg(&port->dev, "%s - qt_close_channel failed.\n", __func__);
 
 	port0->open_ports--;
 
-	dev_dbg(&port->dev, "qt_num_open_ports in close%d:in port%d\n",
-		port0->open_ports, port->number);
+	dev_dbg(&port->dev, "qt_num_open_ports in close%d\n", port0->open_ports);
 
 	if (port0->open_ports == 0) {
 		if (serial->port[0]->interrupt_in_urb) {
@@ -1169,8 +1165,7 @@ static int qt_ioctl(struct tty_struct *tty,
 		return 0;
 	}
 
-	dev_dbg(&port->dev, "%s -No ioctl for that one.  port = %d\n",
-		__func__, port->number);
+	dev_dbg(&port->dev, "%s -No ioctl for that one.\n", __func__);
 	return -ENOIOCTLCMD;
 }
 
@@ -1245,8 +1240,7 @@ static void qt_set_termios(struct tty_struct *tty,
 
 	/* Now determine flow control */
 	if (cflag & CRTSCTS) {
-		dev_dbg(&port->dev, "%s - Enabling HW flow control port %d\n",
-			__func__, port->number);
+		dev_dbg(&port->dev, "%s - Enabling HW flow control\n", __func__);
 
 		/* Enable RTS/CTS flow control */
 		status = BoxSetHW_FlowCtrl(port->serial, index, 1);
@@ -1258,8 +1252,7 @@ static void qt_set_termios(struct tty_struct *tty,
 	} else {
 		/* Disable RTS/CTS flow control */
 		dev_dbg(&port->dev,
-			"%s - disabling HW flow control port %d\n",
-			__func__, port->number);
+			"%s - disabling HW flow control\n", __func__);
 
 		status = BoxSetHW_FlowCtrl(port->serial, index, 0);
 		if (status < 0) {
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 40e7fd94646f..293a7706ba3f 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -414,7 +414,7 @@ static int ark3116_ioctl(struct tty_struct *tty,
 		memset(&serstruct, 0, sizeof(serstruct));
 		serstruct.type = PORT_16654;
 		serstruct.line = port->serial->minor;
-		serstruct.port = port->number;
+		serstruct.port = port->port_number;
 		serstruct.custom_divisor = 0;
 		serstruct.baud_base = 460800;
 
diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c
index 3c4db6d196c6..f053b302a00d 100644
--- a/drivers/usb/serial/bus.c
+++ b/drivers/usb/serial/bus.c
@@ -43,7 +43,7 @@ static ssize_t show_port_number(struct device *dev,
 {
 	struct usb_serial_port *port = to_usb_serial_port(dev);
 
-	return sprintf(buf, "%d\n", port->number - port->serial->minor);
+	return sprintf(buf, "%d\n", port->port_number);
 }
 
 static DEVICE_ATTR(port_number, S_IRUGO, show_port_number, NULL);
@@ -80,7 +80,7 @@ static int usb_serial_device_probe(struct device *dev)
 		goto exit_with_autopm;
 	}
 
-	minor = port->number;
+	minor = port->minor;
 	tty_register_device(usb_serial_tty_driver, minor, dev);
 	dev_info(&port->serial->dev->dev,
 		 "%s converter now attached to ttyUSB%d\n",
@@ -106,7 +106,7 @@ static int usb_serial_device_remove(struct device *dev)
 	/* make sure suspend/resume doesn't race against port_remove */
 	usb_autopm_get_interface(port->serial->interface);
 
-	minor = port->number;
+	minor = port->minor;
 	tty_unregister_device(usb_serial_tty_driver, minor);
 
 	device_remove_file(&port->dev, &dev_attr_port_number);
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 5f3bcd31e204..1b811022f1a1 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -210,7 +210,7 @@ static void usb_console_write(struct console *co,
 	if (count == 0)
 		return;
 
-	pr_debug("%s - port %d, %d byte(s)\n", __func__, port->number, count);
+	pr_debug("%s - minor %d, %d byte(s)\n", __func__, port->minor, count);
 
 	if (!port->port.console) {
 		pr_debug("%s - port not opened\n", __func__);
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 2c659553c07c..d6ef2f8da37d 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -666,8 +666,6 @@ static void cp210x_set_termios(struct tty_struct *tty,
 	unsigned int bits;
 	unsigned int modem_ctl[4];
 
-	dev_dbg(dev, "%s - port %d\n", __func__, port->number);
-
 	if (!tty)
 		return;
 
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 082120198f87..e948dc02795d 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -435,7 +435,7 @@ static void cypress_set_dead(struct usb_serial_port *port)
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	dev_err(&port->dev, "cypress_m8 suspending failing port %d - "
-		"interval might be too short\n", port->number);
+		"interval might be too short\n", port->port_number);
 }
 
 
@@ -667,7 +667,7 @@ static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port,
 {
 	struct cypress_private *priv = usb_get_serial_port_data(port);
 
-	dev_dbg(&port->dev, "%s - port %d, %d bytes\n", __func__, port->number, count);
+	dev_dbg(&port->dev, "%s - %d bytes\n", __func__, count);
 
 	/* line control commands, which need to be executed immediately,
 	   are not put into the buffer for obvious reasons.
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 7b807d389527..19b467fe0388 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1304,11 +1304,7 @@ static void digi_release(struct usb_serial *serial)
 
 static int digi_port_probe(struct usb_serial_port *port)
 {
-	unsigned port_num;
-
-	port_num = port->number - port->serial->minor;
-
-	return digi_port_init(port, port_num);
+	return digi_port_init(port, port->port_number);
 }
 
 static int digi_port_remove(struct usb_serial_port *port)
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 090b411d893f..350dfcb5fa62 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -288,15 +288,14 @@ static int f81232_ioctl(struct tty_struct *tty,
 	struct serial_struct ser;
 	struct usb_serial_port *port = tty->driver_data;
 
-	dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__,
-		port->number, cmd);
+	dev_dbg(&port->dev, "%s cmd = 0x%04x\n", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
 		memset(&ser, 0, sizeof ser);
 		ser.type = PORT_16654;
 		ser.line = port->serial->minor;
-		ser.port = port->number;
+		ser.port = port->port_number;
 		ser.baud_base = 460800;
 
 		if (copy_to_user((void __user *)arg, &ser, sizeof ser))
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index b110c573ea85..04b5ed90ffb2 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -948,9 +948,9 @@ static void garmin_close(struct usb_serial_port *port)
 {
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
 
-	dev_dbg(&port->dev, "%s - port %d - mode=%d state=%d flags=0x%X\n",
-		__func__, port->number, garmin_data_p->mode,
-		garmin_data_p->state, garmin_data_p->flags);
+	dev_dbg(&port->dev, "%s - mode=%d state=%d flags=0x%X\n",
+		__func__, garmin_data_p->mode, garmin_data_p->state,
+		garmin_data_p->flags);
 
 	garmin_clear(garmin_data_p);
 
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 1477e8593476..0c27ff3d2e8f 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -915,8 +915,8 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 		return -ENOMEM;
 	}
 
-	dev_dbg(dev, "%s(%d) - Initialize TX fifo to %d bytes\n",
-		__func__, port->number, edge_port->maxTxCredits);
+	dev_dbg(dev, "%s - Initialize TX fifo to %d bytes\n",
+		__func__, edge_port->maxTxCredits);
 
 	return 0;
 }
@@ -1122,9 +1122,8 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 	copySize = min((unsigned int)count,
 				(edge_port->txCredits - fifo->count));
 
-	dev_dbg(&port->dev, "%s(%d) of %d byte(s) Fifo room  %d -- will copy %d bytes\n",
-		__func__, port->number, count,
-			edge_port->txCredits - fifo->count, copySize);
+	dev_dbg(&port->dev, "%s of %d byte(s) Fifo room  %d -- will copy %d bytes\n",
+		__func__, count, edge_port->txCredits - fifo->count, copySize);
 
 	/* catch writes of 0 bytes which the tty driver likes to give us,
 	   and when txCredits is empty */
@@ -1216,9 +1215,8 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 	if (edge_port->write_in_progress ||
 	    !edge_port->open             ||
 	    (fifo->count == 0)) {
-		dev_dbg(dev, "%s(%d) EXIT - fifo %d, PendingWrite = %d\n",
-			__func__, edge_port->port->number,
-			fifo->count, edge_port->write_in_progress);
+		dev_dbg(dev, "%s EXIT - fifo %d, PendingWrite = %d\n",
+			__func__, fifo->count, edge_port->write_in_progress);
 		goto exit_send;
 	}
 
@@ -1230,9 +1228,8 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 	 * it's better to wait for more credits so we can do a larger write.
 	 */
 	if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits, EDGE_FW_BULK_MAX_PACKET_SIZE)) {
-		dev_dbg(dev, "%s(%d) Not enough credit - fifo %d TxCredit %d\n",
-			__func__, edge_port->port->number, fifo->count,
-			edge_port->txCredits);
+		dev_dbg(dev, "%s Not enough credit - fifo %d TxCredit %d\n",
+			__func__, fifo->count, edge_port->txCredits);
 		goto exit_send;
 	}
 
@@ -1256,10 +1253,8 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 		edge_port->write_in_progress = false;
 		goto exit_send;
 	}
-	buffer[0] = IOSP_BUILD_DATA_HDR1(edge_port->port->number
-				- edge_port->port->serial->minor, count);
-	buffer[1] = IOSP_BUILD_DATA_HDR2(edge_port->port->number
-				- edge_port->port->serial->minor, count);
+	buffer[0] = IOSP_BUILD_DATA_HDR1(edge_port->port->port_number, count);
+	buffer[1] = IOSP_BUILD_DATA_HDR2(edge_port->port->port_number, count);
 
 	/* now copy our data */
 	bytesleft =  fifo->size - fifo->tail;
@@ -1377,8 +1372,7 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 						edge_port->txfifo.count;
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 	if (num_chars) {
-		dev_dbg(&port->dev, "%s(port %d) - returns %d\n", __func__,
-			port->number, num_chars);
+		dev_dbg(&port->dev, "%s - returns %d\n", __func__, num_chars);
 	}
 
 	return num_chars;
@@ -1576,7 +1570,7 @@ static int get_serial_info(struct edgeport_port *edge_port,
 
 	tmp.type		= PORT_16550A;
 	tmp.line		= edge_port->port->serial->minor;
-	tmp.port		= edge_port->port->number;
+	tmp.port		= edge_port->port->port_number;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
 	tmp.xmit_fifo_size	= edge_port->maxTxCredits;
@@ -1601,15 +1595,15 @@ static int edge_ioctl(struct tty_struct *tty,
 	DEFINE_WAIT(wait);
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 
-	dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCSERGETLSR:
-		dev_dbg(&port->dev, "%s (%d) TIOCSERGETLSR\n", __func__,  port->number);
+		dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__);
 		return get_lsr_info(edge_port, (unsigned int __user *) arg);
 
 	case TIOCGSERIAL:
-		dev_dbg(&port->dev, "%s (%d) TIOCGSERIAL\n", __func__,  port->number);
+		dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__);
 		return get_serial_info(edge_port, (struct serial_struct __user *) arg);
 	}
 	return -ENOIOCTLCMD;
@@ -2181,9 +2175,8 @@ static int send_iosp_ext_cmd(struct edgeport_port *edge_port,
 
 	currentCommand = buffer;
 
-	MAKE_CMD_EXT_CMD(&currentCommand, &length,
-		edge_port->port->number - edge_port->port->serial->minor,
-		command, param);
+	MAKE_CMD_EXT_CMD(&currentCommand, &length, edge_port->port->port_number,
+			 command, param);
 
 	status = write_cmd_usb(edge_port, buffer, length);
 	if (status) {
@@ -2266,18 +2259,16 @@ static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
 	int cmdLen = 0;
 	int divisor;
 	int status;
-	unsigned char number =
-		edge_port->port->number - edge_port->port->serial->minor;
+	u32 number = edge_port->port->port_number;
 
 	if (edge_serial->is_epic &&
 	    !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) {
-		dev_dbg(dev, "SendCmdWriteBaudRate - NOT Setting baud rate for port = %d, baud = %d\n",
-			edge_port->port->number, baudRate);
+		dev_dbg(dev, "SendCmdWriteBaudRate - NOT Setting baud rate for port, baud = %d\n",
+			baudRate);
 		return 0;
 	}
 
-	dev_dbg(dev, "%s - port = %d, baud = %d\n", __func__,
-		edge_port->port->number, baudRate);
+	dev_dbg(dev, "%s - baud = %d\n", __func__, baudRate);
 
 	status = calc_baud_rate_divisor(dev, baudRate, &divisor);
 	if (status) {
@@ -2388,9 +2379,8 @@ static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
 	currCmd = cmdBuffer;
 
 	/* Build a cmd in the buffer to write the given register */
-	MAKE_CMD_WRITE_REG(&currCmd, &cmdLen,
-		edge_port->port->number - edge_port->port->serial->minor,
-		regNum, regValue);
+	MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, edge_port->port->port_number,
+			   regNum, regValue);
 
 	status = write_cmd_usb(edge_port, cmdBuffer, cmdLen);
 	if (status) {
@@ -2424,8 +2414,6 @@ static void change_port_settings(struct tty_struct *tty,
 	__u8 txFlow;
 	int status;
 
-	dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number);
-
 	if (!edge_port->open &&
 	    !edge_port->openPending) {
 		dev_dbg(dev, "%s - port not opened\n", __func__);
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 1be6ba7bee27..d32bf2b7f988 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -259,7 +259,7 @@ static int send_cmd(struct usb_device *dev, __u8 command,
 /* clear tx/rx buffers and fifo in TI UMP */
 static int purge_port(struct usb_serial_port *port, __u16 mask)
 {
-	int port_number = port->number - port->serial->minor;
+	int port_number = port->port_number;
 
 	dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask);
 
@@ -1392,7 +1392,8 @@ stayinbootmode:
 
 static int ti_do_config(struct edgeport_port *port, int feature, int on)
 {
-	int port_number = port->port->number - port->port->serial->minor;
+	int port_number = port->port->port_number;
+
 	on = !!on;	/* 1 or 0 not bitmask */
 	return send_cmd(port->port->serial->dev,
 			feature, (__u8)(UMPM_UART1_PORT + port_number),
@@ -1637,7 +1638,7 @@ static void edge_bulk_in_callback(struct urb *urb)
 		return;
 	}
 
-	port_number = edge_port->port->number - edge_port->port->serial->minor;
+	port_number = edge_port->port->port_number;
 
 	if (edge_port->lsr_event) {
 		edge_port->lsr_event = 0;
@@ -1730,7 +1731,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 	if (edge_port == NULL)
 		return -ENODEV;
 
-	port_number = port->number - port->serial->minor;
+	port_number = port->port_number;
 	switch (port_number) {
 	case 0:
 		edge_port->uart_base = UMPMEM_BASE_UART1;
@@ -1908,7 +1909,7 @@ static void edge_close(struct usb_serial_port *port)
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
 	dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__);
-	port_number = port->number - port->serial->minor;
+	port_number = port->port_number;
 	send_cmd(serial->dev, UMPC_CLOSE_PORT,
 		     (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0);
 
@@ -2137,10 +2138,7 @@ static void change_port_settings(struct tty_struct *tty,
 	int baud;
 	unsigned cflag;
 	int status;
-	int port_number = edge_port->port->number -
-					edge_port->port->serial->minor;
-
-	dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number);
+	int port_number = edge_port->port->port_number;
 
 	config = kmalloc (sizeof (*config), GFP_KERNEL);
 	if (!config) {
@@ -2284,7 +2282,6 @@ static void edge_set_termios(struct tty_struct *tty,
 		tty->termios.c_cflag, tty->termios.c_iflag);
 	dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
 		old_termios->c_cflag, old_termios->c_iflag);
-	dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
 
 	if (edge_port == NULL)
 		return;
@@ -2367,7 +2364,7 @@ static int get_serial_info(struct edgeport_port *edge_port,
 
 	tmp.type		= PORT_16550A;
 	tmp.line		= edge_port->port->serial->minor;
-	tmp.port		= edge_port->port->number;
+	tmp.port		= edge_port->port->port_number;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
 	tmp.xmit_fifo_size	= edge_port->port->bulk_out_size;
@@ -2386,7 +2383,7 @@ static int edge_ioctl(struct tty_struct *tty,
 	struct usb_serial_port *port = tty->driver_data;
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 
-	dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 28365e647168..5a979729f8ec 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -152,7 +152,7 @@ static void keyspan_set_termios(struct tty_struct *tty,
 	p_priv = usb_get_serial_port_data(port);
 	d_details = p_priv->device_details;
 	cflag = tty->termios.c_cflag;
-	device_port = port->number - port->serial->minor;
+	device_port = port->port_number;
 
 	/* Baud rate calculation takes baud rate as an integer
 	   so other rates can be generated if desired. */
@@ -234,8 +234,8 @@ static int keyspan_write(struct tty_struct *tty,
 		dataOffset = 1;
 	}
 
-	dev_dbg(&port->dev, "%s - for port %d (%d chars), flip=%d\n",
-		__func__, port->number, count, p_priv->out_flip);
+	dev_dbg(&port->dev, "%s - %d chars, flip=%d\n", __func__, count,
+		p_priv->out_flip);
 
 	for (left = count; left > 0; left -= todo) {
 		todo = left;
@@ -1041,7 +1041,7 @@ static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
 	/* get the terminal config for the setup message now so we don't
 	 * need to send 2 of them */
 
-	device_port = port->number - port->serial->minor;
+	device_port = port->port_number;
 	if (tty) {
 		cflag = tty->termios.c_cflag;
 		/* Baud rate calculation takes baud rate as an integer
@@ -1547,7 +1547,7 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	s_priv = usb_get_serial_data(serial);
 	p_priv = usb_get_serial_port_data(port);
 	d_details = s_priv->device_details;
-	device_port = port->number - port->serial->minor;
+	device_port = port->port_number;
 
 	this_urb = p_priv->outcont_urb;
 
@@ -1691,7 +1691,7 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial,
 	s_priv = usb_get_serial_data(serial);
 	p_priv = usb_get_serial_port_data(port);
 	d_details = s_priv->device_details;
-	device_port = port->number - port->serial->minor;
+	device_port = port->port_number;
 
 	/* only do something if we have a bulk out endpoint */
 	this_urb = p_priv->outcont_urb;
@@ -1821,17 +1821,16 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial,
 	this_urb = s_priv->glocont_urb;
 
 	/* Work out which port within the device is being setup */
-	device_port = port->number - port->serial->minor;
+	device_port = port->port_number;
 
 	/* Make sure we have an urb then send the message */
 	if (this_urb == NULL) {
-		dev_dbg(&port->dev, "%s - oops no urb for port %d.\n", __func__, port->number);
+		dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
 		return -1;
 	}
 
-	dev_dbg(&port->dev, "%s - endpoint %d port %d (%d)\n",
-		__func__, usb_pipeendpoint(this_urb->pipe),
-		port->number, device_port);
+	dev_dbg(&port->dev, "%s - endpoint %d (%d)\n",
+		__func__, usb_pipeendpoint(this_urb->pipe), device_port);
 
 	/* Save reset port val for resend.
 	   Don't overwrite resend for open/close condition. */
@@ -1846,7 +1845,6 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial,
 
 	memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
 
-	/*msg.portNumber = port->number;*/
 	msg.portNumber = device_port;
 
 	/* Only set baud rate if it's changed */
@@ -2136,12 +2134,11 @@ static int keyspan_usa67_send_setup(struct usb_serial *serial,
 	this_urb = s_priv->glocont_urb;
 
 	/* Work out which port within the device is being setup */
-	device_port = port->number - port->serial->minor;
+	device_port = port->port_number;
 
 	/* Make sure we have an urb then send the message */
 	if (this_urb == NULL) {
-		dev_dbg(&port->dev, "%s - oops no urb for port %d.\n", __func__,
-			port->number);
+		dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
 		return -1;
 	}
 
@@ -2382,7 +2379,7 @@ static int keyspan_port_probe(struct usb_serial_port *port)
 	/* Setup values for the various callback routines */
 	cback = &keyspan_callbacks[d_details->msg_format];
 
-	port_num = port->number - port->serial->minor;
+	port_num = port->port_number;
 
 	/* Do indat endpoints first, once for each flip */
 	endp = d_details->indat_endpoints[port_num];
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 47e247759eb0..40ccf6e5e318 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -224,8 +224,8 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)
 	result = metrousb_send_unidirectional_cmd(UNI_CMD_OPEN, port);
 	if (result) {
 		dev_err(&port->dev,
-			"%s - failed to configure device for port number=%d, error code=%d\n",
-			__func__, port->number, result);
+			"%s - failed to configure device, error code=%d\n",
+			__func__, result);
 		goto exit;
 	}
 
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index f27c621a9297..f79ae7fe37ff 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1047,7 +1047,7 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
 	  *
 	  * 0x08 : SP1/2 Control Reg
 	  */
-	port_number = port->number - port->serial->minor;
+	port_number = port->port_number;
 	read_mos_reg(serial, port_number, LSR, &data);
 
 	dev_dbg(&port->dev, "SS::%p LSR:%x\n", mos7720_port, data);
@@ -1066,7 +1066,7 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	write_mos_reg(serial, port_number, SP_CONTROL_REG, 0x00);
 	read_mos_reg(serial, dummy, SP_CONTROL_REG, &data);
-	data = data | (port->number - port->serial->minor + 1);
+	data = data | (port->port_number + 1);
 	write_mos_reg(serial, dummy, SP_CONTROL_REG, data);
 	mos7720_port->shadowLCR = 0x83;
 	write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
@@ -1147,8 +1147,8 @@ static void mos7720_close(struct usb_serial_port *port)
 	usb_kill_urb(port->write_urb);
 	usb_kill_urb(port->read_urb);
 
-	write_mos_reg(serial, port->number - port->serial->minor, MCR, 0x00);
-	write_mos_reg(serial, port->number - port->serial->minor, IER, 0x00);
+	write_mos_reg(serial, port->port_number, MCR, 0x00);
+	write_mos_reg(serial, port->port_number, IER, 0x00);
 
 	mos7720_port->open = 0;
 }
@@ -1172,8 +1172,7 @@ static void mos7720_break(struct tty_struct *tty, int break_state)
 		data = mos7720_port->shadowLCR & ~UART_LCR_SBC;
 
 	mos7720_port->shadowLCR  = data;
-	write_mos_reg(serial, port->number - port->serial->minor,
-		      LCR, mos7720_port->shadowLCR);
+	write_mos_reg(serial, port->port_number, LCR, mos7720_port->shadowLCR);
 }
 
 /*
@@ -1304,8 +1303,8 @@ static void mos7720_throttle(struct tty_struct *tty)
 	/* if we are implementing RTS/CTS, toggle that line */
 	if (tty->termios.c_cflag & CRTSCTS) {
 		mos7720_port->shadowMCR &= ~UART_MCR_RTS;
-		write_mos_reg(port->serial, port->number - port->serial->minor,
-			      MCR, mos7720_port->shadowMCR);
+		write_mos_reg(port->serial, port->port_number, MCR,
+			      mos7720_port->shadowMCR);
 		if (status != 0)
 			return;
 	}
@@ -1336,8 +1335,8 @@ static void mos7720_unthrottle(struct tty_struct *tty)
 	/* if we are implementing RTS/CTS, toggle that line */
 	if (tty->termios.c_cflag & CRTSCTS) {
 		mos7720_port->shadowMCR |= UART_MCR_RTS;
-		write_mos_reg(port->serial, port->number - port->serial->minor,
-			      MCR, mos7720_port->shadowMCR);
+		write_mos_reg(port->serial, port->port_number, MCR,
+			      mos7720_port->shadowMCR);
 		if (status != 0)
 			return;
 	}
@@ -1361,7 +1360,7 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
 	 *      Init Sequence for higher rates
 	 ***********************************************/
 	dev_dbg(&port->dev, "Sending Setting Commands ..........\n");
-	port_number = port->number - port->serial->minor;
+	port_number = port->port_number;
 
 	write_mos_reg(serial, port_number, IER, 0x00);
 	write_mos_reg(serial, port_number, FCR, 0x00);
@@ -1487,7 +1486,7 @@ static int send_cmd_write_baud_rate(struct moschip_port *mos7720_port,
 	port = mos7720_port->port;
 	serial = port->serial;
 
-	number = port->number - port->serial->minor;
+	number = port->port_number;
 	dev_dbg(&port->dev, "%s - baud = %d\n", __func__, baudrate);
 
 	/* Calculate the Divisor */
@@ -1538,7 +1537,7 @@ static void change_port_settings(struct tty_struct *tty,
 
 	port = mos7720_port->port;
 	serial = port->serial;
-	port_number = port->number - port->serial->minor;
+	port_number = port->port_number;
 
 	if (!mos7720_port->open) {
 		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
@@ -1731,7 +1730,7 @@ static int get_lsr_info(struct tty_struct *tty,
 	struct usb_serial_port *port = tty->driver_data;
 	unsigned int result = 0;
 	unsigned char data = 0;
-	int port_number = port->number - port->serial->minor;
+	int port_number = port->port_number;
 	int count;
 
 	count = mos7720_chars_in_buffer(tty);
@@ -1793,8 +1792,8 @@ static int mos7720_tiocmset(struct tty_struct *tty,
 		mcr &= ~UART_MCR_LOOP;
 
 	mos7720_port->shadowMCR = mcr;
-	write_mos_reg(port->serial, port->number - port->serial->minor,
-		      MCR, mos7720_port->shadowMCR);
+	write_mos_reg(port->serial, port->port_number, MCR,
+		      mos7720_port->shadowMCR);
 
 	return 0;
 }
@@ -1838,8 +1837,8 @@ static int set_modem_info(struct moschip_port *mos7720_port, unsigned int cmd,
 	}
 
 	mos7720_port->shadowMCR = mcr;
-	write_mos_reg(port->serial, port->number - port->serial->minor,
-		      MCR, mos7720_port->shadowMCR);
+	write_mos_reg(port->serial, port->port_number, MCR,
+		      mos7720_port->shadowMCR);
 
 	return 0;
 }
@@ -1856,7 +1855,7 @@ static int get_serial_info(struct moschip_port *mos7720_port,
 
 	tmp.type		= PORT_16550A;
 	tmp.line		= mos7720_port->port->serial->minor;
-	tmp.port		= mos7720_port->port->number;
+	tmp.port		= mos7720_port->port->port_number;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
 	tmp.xmit_fifo_size	= NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 7e998081e1cd..f981b08ff32f 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -303,15 +303,12 @@ static int mos7840_set_uart_reg(struct usb_serial_port *port, __u16 reg,
 	/* For the UART control registers, the application number need
 	   to be Or'ed */
 	if (port->serial->num_ports == 4) {
-		val |= (((__u16) port->number -
-				(__u16) (port->serial->minor)) + 1) << 8;
+		val |= ((__u16)port->port_number + 1) << 8;
 	} else {
-		if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
-			val |= (((__u16) port->number -
-			      (__u16) (port->serial->minor)) + 1) << 8;
+		if (port->port_number == 0) {
+			val |= ((__u16)port->port_number + 1) << 8;
 		} else {
-			val |= (((__u16) port->number -
-			      (__u16) (port->serial->minor)) + 2) << 8;
+			val |= ((__u16)port->port_number + 2) << 8;
 		}
 	}
 	dev_dbg(&port->dev, "%s application number is %x\n", __func__, val);
@@ -340,16 +337,12 @@ static int mos7840_get_uart_reg(struct usb_serial_port *port, __u16 reg,
 
 	/* Wval  is same as application number */
 	if (port->serial->num_ports == 4) {
-		Wval =
-		    (((__u16) port->number - (__u16) (port->serial->minor)) +
-		     1) << 8;
+		Wval = ((__u16)port->port_number + 1) << 8;
 	} else {
-		if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
-			Wval = (((__u16) port->number -
-			      (__u16) (port->serial->minor)) + 1) << 8;
+		if (port->port_number == 0) {
+			Wval = ((__u16)port->port_number + 1) << 8;
 		} else {
-			Wval = (((__u16) port->number -
-			      (__u16) (port->serial->minor)) + 2) << 8;
+			Wval = ((__u16)port->port_number + 2) << 8;
 		}
 	}
 	dev_dbg(&port->dev, "%s application number is %x\n", __func__, Wval);
@@ -631,9 +624,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
 
 	for (i = 0; i < serial->num_ports; i++) {
 		mos7840_port = mos7840_get_port_private(serial->port[i]);
-		wval =
-		    (((__u16) serial->port[i]->number -
-		      (__u16) (serial->minor)) + 1) << 8;
+		wval = ((__u16)serial->port[i]->port_number + 1) << 8;
 		if (mos7840_port->open) {
 			if (sp[i] & 0x01) {
 				dev_dbg(&urb->dev->dev, "SP%d No Interrupt !!!\n", i);
@@ -1065,8 +1056,8 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	 * (can't set it up in mos7840_startup as the  *
 	 * structures were not set up at that time.)   */
 
-	dev_dbg(&port->dev, "port number is %d\n", port->number);
-	dev_dbg(&port->dev, "serial number is %d\n", port->serial->minor);
+	dev_dbg(&port->dev, "port number is %d\n", port->port_number);
+	dev_dbg(&port->dev, "minor number is %d\n", port->serial->minor);
 	dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
 	dev_dbg(&port->dev, "BulkOut endpoint is %d\n", port->bulk_out_endpointAddress);
 	dev_dbg(&port->dev, "Interrupt endpoint is %d\n", port->interrupt_in_endpointAddress);
@@ -1074,9 +1065,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	mos7840_port->read_urb = port->read_urb;
 
 	/* set up our bulk in urb */
-	if ((serial->num_ports == 2)
-		&& ((((__u16)port->number -
-			(__u16)(port->serial->minor)) % 2) != 0)) {
+	if ((serial->num_ports == 2) && (((__u16)port->port_number % 2) != 0)) {
 		usb_fill_bulk_urb(mos7840_port->read_urb,
 			serial->dev,
 			usb_rcvbulkpipe(serial->dev,
@@ -1199,7 +1188,7 @@ static void mos7840_close(struct usb_serial_port *port)
 	mos7840_port->read_urb_busy = false;
 
 	port0->open_ports--;
-	dev_dbg(&port->dev, "%s in close%d:in port%d\n", __func__, port0->open_ports, port->number);
+	dev_dbg(&port->dev, "%s in close%d\n", __func__, port0->open_ports);
 	if (port0->open_ports == 0) {
 		if (serial->port[0]->interrupt_in_urb) {
 			dev_dbg(&port->dev, "Shutdown interrupt_in_urb\n");
@@ -1435,9 +1424,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
 	memcpy(urb->transfer_buffer, current_position, transfer_size);
 
 	/* fill urb with data and submit  */
-	if ((serial->num_ports == 2)
-		&& ((((__u16)port->number -
-			(__u16)(port->serial->minor)) % 2) != 0)) {
+	if ((serial->num_ports == 2) && (((__u16)port->port_number % 2) != 0)) {
 		usb_fill_bulk_urb(urb,
 			serial->dev,
 			usb_sndbulkpipe(serial->dev,
@@ -1732,10 +1719,9 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
 	if (mos7840_serial_paranoia_check(port->serial, __func__))
 		return -1;
 
-	number = mos7840_port->port->number - mos7840_port->port->serial->minor;
+	number = mos7840_port->port->port_number;
 
-	dev_dbg(&port->dev, "%s - port = %d, baud = %d\n", __func__,
-		mos7840_port->port->number, baudRate);
+	dev_dbg(&port->dev, "%s - baud = %d\n", __func__, baudRate);
 	/* reset clk_uart_sel in spregOffset */
 	if (baudRate > 115200) {
 #ifdef HW_flow_control
@@ -2016,7 +2002,6 @@ static void mos7840_set_termios(struct tty_struct *tty,
 		tty->termios.c_cflag, RELEVANT_IFLAG(tty->termios.c_iflag));
 	dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
 		old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
-	dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
 
 	/* change the port settings to the new ones specified */
 
@@ -2084,7 +2069,7 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port,
 
 	tmp.type = PORT_16550A;
 	tmp.line = mos7840_port->port->serial->minor;
-	tmp.port = mos7840_port->port->number;
+	tmp.port = mos7840_port->port->port_number;
 	tmp.irq = 0;
 	tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
 	tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
@@ -2240,7 +2225,7 @@ static int mos7840_port_probe(struct usb_serial_port *port)
 	/* we set up the pointers to the endpoints in the mos7840_open *
 	 * function, as the structures aren't created yet.             */
 
-	pnum = port->number - serial->minor;
+	pnum = port->port_number;
 
 	dev_dbg(&port->dev, "mos7840_startup: configuring port %d\n", pnum);
 	mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL);
@@ -2261,7 +2246,6 @@ static int mos7840_port_probe(struct usb_serial_port *port)
 	 * usb-serial.c:get_free_serial() and cannot therefore be used
 	 * to index device instances */
 	mos7840_port->port_num = pnum + 1;
-	dev_dbg(&port->dev, "port->number = %d\n", port->number);
 	dev_dbg(&port->dev, "port->serial->minor = %d\n", port->serial->minor);
 	dev_dbg(&port->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num);
 	dev_dbg(&port->dev, "serial->minor = %d\n", serial->minor);
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 5f4b0cd0f6e9..6e1ee85e44f2 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -367,7 +367,7 @@ static int opticon_ioctl(struct tty_struct *tty,
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 97c1e6a9dd4f..966c20c9ced4 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -640,7 +640,7 @@ static int pl2303_ioctl(struct tty_struct *tty,
 		memset(&ser, 0, sizeof ser);
 		ser.type = PORT_16654;
 		ser.line = port->serial->minor;
-		ser.port = port->number;
+		ser.port = port->port_number;
 		ser.baud_base = 460800;
 
 		if (copy_to_user((void __user *)arg, &ser, sizeof ser))
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index b0a9478a8c9e..f2ca7d80c8a0 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -343,7 +343,7 @@ static int qt2_open(struct tty_struct *tty, struct usb_serial_port *port)
 	int status;
 	unsigned long flags;
 
-	device_port = (u16) (port->number - port->serial->minor);
+	device_port = port->port_number;
 
 	serial = port->serial;
 
@@ -388,9 +388,8 @@ static int qt2_open(struct tty_struct *tty, struct usb_serial_port *port)
 	status = qt2_set_port_config(serial->dev, device_port,
 				     DEFAULT_BAUD_RATE, UART_LCR_WLEN8);
 	if (status < 0) {
-		dev_err(&port->dev,
-			"%s - initial setup failed for port %i (%i)\n",
-			__func__, port->number, device_port);
+		dev_err(&port->dev, "%s - initial setup failed (%i)\n",
+			__func__, device_port);
 		return status;
 	}
 
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 8894665cd610..de958c5b52e3 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -914,7 +914,7 @@ static int sierra_port_probe(struct usb_serial_port *port)
 		/* This is really the usb-serial port number of the interface
 		 * rather than the interface number.
 		 */
-		ifnum = port->number - serial->minor;
+		ifnum = port->port_number;
 		himemoryp = &typeA_interface_list;
 	}
 
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index c92c5ed4e580..07e5c9bec48a 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -476,7 +476,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 	if (mutex_lock_interruptible(&tdev->td_open_close_lock))
 		return -ERESTARTSYS;
 
-	port_number = port->number - port->serial->minor;
+	port_number = port->port_number;
 
 	tport->tp_msr = 0;
 	tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
@@ -618,7 +618,7 @@ static void ti_close(struct usb_serial_port *port)
 	kfifo_reset_out(&tport->write_fifo);
 	spin_unlock_irqrestore(&tport->tp_lock, flags);
 
-	port_number = port->number - port->serial->minor;
+	port_number = port->port_number;
 
 	dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__);
 	status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
@@ -776,7 +776,7 @@ static void ti_set_termios(struct tty_struct *tty,
 	tcflag_t cflag, iflag;
 	int baud;
 	int status;
-	int port_number = port->number - port->serial->minor;
+	int port_number = port->port_number;
 	unsigned int mcr;
 
 	cflag = tty->termios.c_cflag;
@@ -1262,7 +1262,7 @@ static int ti_get_lsr(struct ti_port *tport, u8 *lsr)
 	int size, status;
 	struct ti_device *tdev = tport->tp_tdev;
 	struct usb_serial_port *port = tport->tp_port;
-	int port_number = port->number - port->serial->minor;
+	int port_number = port->port_number;
 	struct ti_port_status *data;
 
 	size = sizeof(struct ti_port_status);
@@ -1309,7 +1309,7 @@ static int ti_get_serial_info(struct ti_port *tport,
 
 	ret_serial.type = PORT_16550A;
 	ret_serial.line = port->serial->minor;
-	ret_serial.port = port->number - port->serial->minor;
+	ret_serial.port = port->port_number;
 	ret_serial.flags = tport->tp_flags;
 	ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE;
 	ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800;
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 5f6b1ff9d29e..a47fa715aaba 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -105,9 +105,10 @@ static struct usb_serial *get_free_serial(struct usb_serial *serial,
 		*minor = i;
 		j = 0;
 		dev_dbg(&serial->interface->dev, "%s - minor base = %d\n", __func__, *minor);
-		for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i) {
+		for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i, ++j) {
 			serial_table[i] = serial;
-			serial->port[j++]->number = i;
+			serial->port[j]->minor = i;
+			serial->port[j]->port_number = i - *minor;
 		}
 		mutex_unlock(&table_lock);
 		return serial;
@@ -1048,7 +1049,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 	/* register all of the individual ports with the driver core */
 	for (i = 0; i < num_ports; ++i) {
 		port = serial->port[i];
-		dev_set_name(&port->dev, "ttyUSB%d", port->number);
+		dev_set_name(&port->dev, "ttyUSB%d", port->minor);
 		dev_dbg(ddev, "registering %s", dev_name(&port->dev));
 		device_enable_async_suspend(&port->dev);
 
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index ece326ef63a0..eacc27dc4657 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -125,7 +125,7 @@ static int get_serial_info(struct usb_serial_port *port,
 
 	memset(&tmp, 0, sizeof(tmp));
 	tmp.line            = port->serial->minor;
-	tmp.port            = port->number;
+	tmp.port            = port->port_number;
 	tmp.baud_base       = tty_get_baud_rate(port->port.tty);
 	tmp.close_delay	    = port->port.close_delay / 10;
 	tmp.closing_wait    = port->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 347caad47a12..7eb34cd6b579 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -462,7 +462,7 @@ static int whiteheat_ioctl(struct tty_struct *tty,
 		memset(&serstruct, 0, sizeof(serstruct));
 		serstruct.type = PORT_16654;
 		serstruct.line = port->serial->minor;
-		serstruct.port = port->number;
+		serstruct.port = port->port_number;
 		serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
 		serstruct.xmit_fifo_size = kfifo_size(&port->write_fifo);
 		serstruct.custom_divisor = 0;
@@ -626,7 +626,7 @@ static int firm_open(struct usb_serial_port *port)
 {
 	struct whiteheat_simple open_command;
 
-	open_command.port = port->number - port->serial->minor + 1;
+	open_command.port = port->port_number + 1;
 	return firm_send_command(port, WHITEHEAT_OPEN,
 		(__u8 *)&open_command, sizeof(open_command));
 }
@@ -636,7 +636,7 @@ static int firm_close(struct usb_serial_port *port)
 {
 	struct whiteheat_simple close_command;
 
-	close_command.port = port->number - port->serial->minor + 1;
+	close_command.port = port->port_number + 1;
 	return firm_send_command(port, WHITEHEAT_CLOSE,
 			(__u8 *)&close_command, sizeof(close_command));
 }
@@ -649,7 +649,7 @@ static void firm_setup_port(struct tty_struct *tty)
 	struct whiteheat_port_settings port_settings;
 	unsigned int cflag = tty->termios.c_cflag;
 
-	port_settings.port = port->number - port->serial->minor + 1;
+	port_settings.port = port->port_number + 1;
 
 	/* get the byte size */
 	switch (cflag & CSIZE) {
@@ -726,7 +726,7 @@ static int firm_set_rts(struct usb_serial_port *port, __u8 onoff)
 {
 	struct whiteheat_set_rdb rts_command;
 
-	rts_command.port = port->number - port->serial->minor + 1;
+	rts_command.port = port->port_number + 1;
 	rts_command.state = onoff;
 	return firm_send_command(port, WHITEHEAT_SET_RTS,
 			(__u8 *)&rts_command, sizeof(rts_command));
@@ -737,7 +737,7 @@ static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff)
 {
 	struct whiteheat_set_rdb dtr_command;
 
-	dtr_command.port = port->number - port->serial->minor + 1;
+	dtr_command.port = port->port_number + 1;
 	dtr_command.state = onoff;
 	return firm_send_command(port, WHITEHEAT_SET_DTR,
 			(__u8 *)&dtr_command, sizeof(dtr_command));
@@ -748,7 +748,7 @@ static int firm_set_break(struct usb_serial_port *port, __u8 onoff)
 {
 	struct whiteheat_set_rdb break_command;
 
-	break_command.port = port->number - port->serial->minor + 1;
+	break_command.port = port->port_number + 1;
 	break_command.state = onoff;
 	return firm_send_command(port, WHITEHEAT_SET_BREAK,
 			(__u8 *)&break_command, sizeof(break_command));
@@ -759,7 +759,7 @@ static int firm_purge(struct usb_serial_port *port, __u8 rxtx)
 {
 	struct whiteheat_purge purge_command;
 
-	purge_command.port = port->number - port->serial->minor + 1;
+	purge_command.port = port->port_number + 1;
 	purge_command.what = rxtx;
 	return firm_send_command(port, WHITEHEAT_PURGE,
 			(__u8 *)&purge_command, sizeof(purge_command));
@@ -770,7 +770,7 @@ static int firm_get_dtr_rts(struct usb_serial_port *port)
 {
 	struct whiteheat_simple get_dr_command;
 
-	get_dr_command.port = port->number - port->serial->minor + 1;
+	get_dr_command.port = port->port_number + 1;
 	return firm_send_command(port, WHITEHEAT_GET_DTR_RTS,
 			(__u8 *)&get_dr_command, sizeof(get_dr_command));
 }
@@ -780,7 +780,7 @@ static int firm_report_tx_done(struct usb_serial_port *port)
 {
 	struct whiteheat_simple close_command;
 
-	close_command.port = port->number - port->serial->minor + 1;
+	close_command.port = port->port_number + 1;
 	return firm_send_command(port, WHITEHEAT_REPORT_TX_DONE,
 			(__u8 *)&close_command, sizeof(close_command));
 }
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 302ddf55d2da..3fa68b615ac1 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -37,7 +37,8 @@
  * @serial: pointer back to the struct usb_serial owner of this port.
  * @port: pointer to the corresponding tty_port for this port.
  * @lock: spinlock to grab when updating portions of this structure.
- * @number: the number of the port (the minor number).
+ * @minor: the minor number of the port
+ * @port_number: the struct usb_serial port number of this port (starts at 0)
  * @interrupt_in_buffer: pointer to the interrupt in buffer for this port.
  * @interrupt_in_urb: pointer to the interrupt in struct urb for this port.
  * @interrupt_in_endpointAddress: endpoint address for the interrupt in pipe
@@ -80,7 +81,8 @@ struct usb_serial_port {
 	struct usb_serial	*serial;
 	struct tty_port		port;
 	spinlock_t		lock;
-	unsigned char		number;
+	u32			minor;
+	u8			port_number;
 
 	unsigned char		*interrupt_in_buffer;
 	struct urb		*interrupt_in_urb;
-- 
cgit v1.2.3


From e5b1e2062e0535e8ffef79bb34d857e21380d101 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 7 Jun 2013 11:04:28 -0700
Subject: USB: serial: make minor allocation dynamic

This moves the allocation of minor device numbers from a static array to
be dynamic, using the idr interface.  This means that you could
potentially get "gaps" in a minor number range for a single USB serial
device with multiple ports, but all should still work properly.

We remove the 'minor' field from the usb_serial structure, as it no
longer makes any sense for it (use the field in the usb_serial_port
structure if you really want to know this number), and take the fact
that we were overloading a number in this field to determine if we had
initialized the minor numbers or not, and just use a flag variable
instead.

Note, we still have the limitation of 255 USB to serial devices in the
system, as that is all we are registering with the TTY layer at this
point in time.

Tested-by: Tobias Winter <tobias@linuxdingsda.de>
Reviewed-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/serqt_usb2/serqt_usb2.c |  15 ++--
 drivers/usb/serial/ark3116.c            |   2 +-
 drivers/usb/serial/console.c            |   6 +-
 drivers/usb/serial/f81232.c             |   2 +-
 drivers/usb/serial/io_edgeport.c        |   2 +-
 drivers/usb/serial/io_ti.c              |   2 +-
 drivers/usb/serial/mos7720.c            |   2 +-
 drivers/usb/serial/mos7840.c            |   7 +-
 drivers/usb/serial/opticon.c            |   2 +-
 drivers/usb/serial/pl2303.c             |   2 +-
 drivers/usb/serial/quatech2.c           |   2 +-
 drivers/usb/serial/ssu100.c             |   2 +-
 drivers/usb/serial/ti_usb_3410_5052.c   |   2 +-
 drivers/usb/serial/usb-serial.c         | 123 ++++++++++++++------------------
 drivers/usb/serial/usb_wwan.c           |   2 +-
 drivers/usb/serial/whiteheat.c          |   2 +-
 include/linux/usb/serial.h              |   6 +-
 17 files changed, 82 insertions(+), 99 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c
index 4f891dba2faa..880f5c0011f2 100644
--- a/drivers/staging/serqt_usb2/serqt_usb2.c
+++ b/drivers/staging/serqt_usb2/serqt_usb2.c
@@ -906,7 +906,7 @@ static int qt_open(struct tty_struct *tty,
 			qt_submit_urb_from_open(serial, port);
 	}
 
-	dev_dbg(&port->dev, "serial number is %d\n", port->serial->minor);
+	dev_dbg(&port->dev, "minor number is %d\n", port->minor);
 	dev_dbg(&port->dev,
 		"Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
 	dev_dbg(&port->dev,
@@ -1002,7 +1002,7 @@ static void qt_close(struct usb_serial_port *port)
 	status = 0;
 
 	tty = tty_port_tty_get(&port->port);
-	index = tty->index - serial->minor;
+	index = port->port_number;
 
 	qt_port = qt_get_port_private(port);
 	port0 = qt_get_port_private(serial->port[0]);
@@ -1129,12 +1129,11 @@ static int qt_ioctl(struct tty_struct *tty,
 {
 	struct usb_serial_port *port = tty->driver_data;
 	struct quatech_port *qt_port = qt_get_port_private(port);
-	struct usb_serial *serial = get_usb_serial(port, __func__);
 	unsigned int index;
 
 	dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
 
-	index = tty->index - serial->minor;
+	index = port->port_number;
 
 	if (cmd == TIOCMIWAIT) {
 		while (qt_port != NULL) {
@@ -1180,7 +1179,7 @@ static void qt_set_termios(struct tty_struct *tty,
 	int baud, divisor, remainder;
 	int status;
 
-	index = tty->index - port->serial->minor;
+	index = port->port_number;
 
 	switch (cflag & CSIZE) {
 	case CS5:
@@ -1296,7 +1295,7 @@ static void qt_break(struct tty_struct *tty, int break_state)
 	u16 index, onoff;
 	unsigned int result;
 
-	index = tty->index - serial->minor;
+	index = port->port_number;
 
 	qt_port = qt_get_port_private(port);
 
@@ -1325,7 +1324,7 @@ static inline int qt_real_tiocmget(struct tty_struct *tty,
 	int status;
 	unsigned int index;
 
-	index = tty->index - serial->minor;
+	index = port->port_number;
 	status =
 	    BoxGetRegister(port->serial, index, MODEM_CONTROL_REGISTER, &mcr);
 	if (status >= 0) {
@@ -1364,7 +1363,7 @@ static inline int qt_real_tiocmset(struct tty_struct *tty,
 	int status;
 	unsigned int index;
 
-	index = tty->index - serial->minor;
+	index = port->port_number;
 	status =
 	    BoxGetRegister(port->serial, index, MODEM_CONTROL_REGISTER, &mcr);
 	if (status < 0)
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 293a7706ba3f..bc77e955cbef 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -413,7 +413,7 @@ static int ark3116_ioctl(struct tty_struct *tty,
 		/* XXX: Some of these values are probably wrong. */
 		memset(&serstruct, 0, sizeof(serstruct));
 		serstruct.type = PORT_16654;
-		serstruct.line = port->serial->minor;
+		serstruct.line = port->minor;
 		serstruct.port = port->port_number;
 		serstruct.custom_divisor = 0;
 		serstruct.baud_base = 460800;
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 1b811022f1a1..afb50eab2049 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -108,18 +108,18 @@ static int usb_console_setup(struct console *co, char *options)
 	 * no need to check the index here: if the index is wrong, console
 	 * code won't call us
 	 */
-	serial = usb_serial_get_by_index(co->index);
-	if (serial == NULL) {
+	port = usb_serial_port_get_by_minor(co->index);
+	if (port == NULL) {
 		/* no device is connected yet, sorry :( */
 		pr_err("No USB device connected to ttyUSB%i\n", co->index);
 		return -ENODEV;
 	}
+	serial = port->serial;
 
 	retval = usb_autopm_get_interface(serial->interface);
 	if (retval)
 		goto error_get_interface;
 
-	port = serial->port[co->index - serial->minor];
 	tty_port_tty_set(&port->port, NULL);
 
 	info->port = port;
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 3d53039383dd..75e85cbf9e8b 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -294,7 +294,7 @@ static int f81232_ioctl(struct tty_struct *tty,
 	case TIOCGSERIAL:
 		memset(&ser, 0, sizeof ser);
 		ser.type = PORT_16654;
-		ser.line = port->serial->minor;
+		ser.line = port->minor;
 		ser.port = port->port_number;
 		ser.baud_base = 460800;
 
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 0c27ff3d2e8f..dc2803b5eb09 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -1569,7 +1569,7 @@ static int get_serial_info(struct edgeport_port *edge_port,
 	memset(&tmp, 0, sizeof(tmp));
 
 	tmp.type		= PORT_16550A;
-	tmp.line		= edge_port->port->serial->minor;
+	tmp.line		= edge_port->port->minor;
 	tmp.port		= edge_port->port->port_number;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index d32bf2b7f988..60054e72b75b 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2363,7 +2363,7 @@ static int get_serial_info(struct edgeport_port *edge_port,
 	memset(&tmp, 0, sizeof(tmp));
 
 	tmp.type		= PORT_16550A;
-	tmp.line		= edge_port->port->serial->minor;
+	tmp.line		= edge_port->port->minor;
 	tmp.port		= edge_port->port->port_number;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index f79ae7fe37ff..51da424327b0 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1854,7 +1854,7 @@ static int get_serial_info(struct moschip_port *mos7720_port,
 	memset(&tmp, 0, sizeof(tmp));
 
 	tmp.type		= PORT_16550A;
-	tmp.line		= mos7720_port->port->serial->minor;
+	tmp.line		= mos7720_port->port->minor;
 	tmp.port		= mos7720_port->port->port_number;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index f981b08ff32f..0a818b238508 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1057,7 +1057,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	 * structures were not set up at that time.)   */
 
 	dev_dbg(&port->dev, "port number is %d\n", port->port_number);
-	dev_dbg(&port->dev, "minor number is %d\n", port->serial->minor);
+	dev_dbg(&port->dev, "minor number is %d\n", port->minor);
 	dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
 	dev_dbg(&port->dev, "BulkOut endpoint is %d\n", port->bulk_out_endpointAddress);
 	dev_dbg(&port->dev, "Interrupt endpoint is %d\n", port->interrupt_in_endpointAddress);
@@ -2068,7 +2068,7 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port,
 	memset(&tmp, 0, sizeof(tmp));
 
 	tmp.type = PORT_16550A;
-	tmp.line = mos7840_port->port->serial->minor;
+	tmp.line = mos7840_port->port->minor;
 	tmp.port = mos7840_port->port->port_number;
 	tmp.irq = 0;
 	tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
@@ -2246,9 +2246,8 @@ static int mos7840_port_probe(struct usb_serial_port *port)
 	 * usb-serial.c:get_free_serial() and cannot therefore be used
 	 * to index device instances */
 	mos7840_port->port_num = pnum + 1;
-	dev_dbg(&port->dev, "port->serial->minor = %d\n", port->serial->minor);
+	dev_dbg(&port->dev, "port->minor = %d\n", port->minor);
 	dev_dbg(&port->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num);
-	dev_dbg(&port->dev, "serial->minor = %d\n", serial->minor);
 
 	if (mos7840_port->port_num == 1) {
 		mos7840_port->SpRegOffset = 0x0;
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 6e1ee85e44f2..cbe779f578f9 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -348,7 +348,7 @@ static int get_serial_info(struct usb_serial_port *port,
 
 	/* fake emulate a 16550 uart to make userspace code happy */
 	tmp.type		= PORT_16550A;
-	tmp.line		= port->serial->minor;
+	tmp.line		= port->minor;
 	tmp.port		= 0;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 042ae6be3cbe..cb6bbed374f2 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -639,7 +639,7 @@ static int pl2303_ioctl(struct tty_struct *tty,
 	case TIOCGSERIAL:
 		memset(&ser, 0, sizeof ser);
 		ser.type = PORT_16654;
-		ser.line = port->serial->minor;
+		ser.line = port->minor;
 		ser.port = port->port_number;
 		ser.baud_base = 460800;
 
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index f2ca7d80c8a0..d99743290fc1 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -465,7 +465,7 @@ static int get_serial_info(struct usb_serial_port *port,
 		return -EFAULT;
 
 	memset(&tmp, 0, sizeof(tmp));
-	tmp.line		= port->serial->minor;
+	tmp.line		= port->minor;
 	tmp.port		= 0;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 5b62dbbdf996..e5750be49054 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -323,7 +323,7 @@ static int get_serial_info(struct usb_serial_port *port,
 		return -EFAULT;
 
 	memset(&tmp, 0, sizeof(tmp));
-	tmp.line		= port->serial->minor;
+	tmp.line		= port->minor;
 	tmp.port		= 0;
 	tmp.irq			= 0;
 	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 07e5c9bec48a..c9c46d6f8c80 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1308,7 +1308,7 @@ static int ti_get_serial_info(struct ti_port *tport,
 	memset(&ret_serial, 0, sizeof(ret_serial));
 
 	ret_serial.type = PORT_16550A;
-	ret_serial.line = port->serial->minor;
+	ret_serial.line = port->minor;
 	ret_serial.port = port->port_number;
 	ret_serial.flags = tport->tp_flags;
 	ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE;
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index a47fa715aaba..e2e131f85002 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -37,6 +37,7 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 #include <linux/kfifo.h>
+#include <linux/idr.h>
 #include "pl2303.h"
 
 #define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
@@ -49,82 +50,75 @@
    drivers depend on it.
 */
 
-static struct usb_serial *serial_table[SERIAL_TTY_MINORS];
+static DEFINE_IDR(serial_minors);
 static DEFINE_MUTEX(table_lock);
 static LIST_HEAD(usb_serial_driver_list);
 
 /*
- * Look up the serial structure.  If it is found and it hasn't been
- * disconnected, return with its disc_mutex held and its refcount
- * incremented.  Otherwise return NULL.
+ * Look up the serial port structure.  If it is found and it hasn't been
+ * disconnected, return with the parent usb_serial structure's disc_mutex held
+ * and its refcount incremented.  Otherwise return NULL.
  */
-struct usb_serial *usb_serial_get_by_index(unsigned index)
+struct usb_serial_port *usb_serial_port_get_by_minor(unsigned minor)
 {
 	struct usb_serial *serial;
+	struct usb_serial_port *port;
 
 	mutex_lock(&table_lock);
-	serial = serial_table[index];
-
-	if (serial) {
-		mutex_lock(&serial->disc_mutex);
-		if (serial->disconnected) {
-			mutex_unlock(&serial->disc_mutex);
-			serial = NULL;
-		} else {
-			kref_get(&serial->kref);
-		}
+	port = idr_find(&serial_minors, minor);
+	if (!port)
+		goto exit;
+
+	serial = port->serial;
+	mutex_lock(&serial->disc_mutex);
+	if (serial->disconnected) {
+		mutex_unlock(&serial->disc_mutex);
+		port = NULL;
+	} else {
+		kref_get(&serial->kref);
 	}
+exit:
 	mutex_unlock(&table_lock);
-	return serial;
+	return port;
 }
 
-static struct usb_serial *get_free_serial(struct usb_serial *serial,
-					int num_ports, unsigned int *minor)
+static int allocate_minors(struct usb_serial *serial, int num_ports)
 {
+	struct usb_serial_port *port;
 	unsigned int i, j;
-	int good_spot;
+	int minor;
 
 	dev_dbg(&serial->interface->dev, "%s %d\n", __func__, num_ports);
 
-	*minor = 0;
 	mutex_lock(&table_lock);
-	for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
-		if (serial_table[i])
-			continue;
-
-		good_spot = 1;
-		for (j = 1; j <= num_ports-1; ++j)
-			if ((i+j >= SERIAL_TTY_MINORS) || (serial_table[i+j])) {
-				good_spot = 0;
-				i += j;
-				break;
-			}
-		if (good_spot == 0)
-			continue;
-
-		*minor = i;
-		j = 0;
-		dev_dbg(&serial->interface->dev, "%s - minor base = %d\n", __func__, *minor);
-		for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i, ++j) {
-			serial_table[i] = serial;
-			serial->port[j]->minor = i;
-			serial->port[j]->port_number = i - *minor;
-		}
-		mutex_unlock(&table_lock);
-		return serial;
+	for (i = 0; i < num_ports; ++i) {
+		port = serial->port[i];
+		minor = idr_alloc(&serial_minors, port, 0, 0, GFP_KERNEL);
+		if (minor < 0)
+			goto error;
+		port->minor = minor;
+		port->port_number = i;
 	}
+	serial->minors_reserved = 1;
 	mutex_unlock(&table_lock);
-	return NULL;
+	return 0;
+error:
+	/* unwind the already allocated minors */
+	for (j = 0; j < i; ++j)
+		idr_remove(&serial_minors, serial->port[j]->minor);
+	mutex_unlock(&table_lock);
+	return minor;
 }
 
-static void return_serial(struct usb_serial *serial)
+static void release_minors(struct usb_serial *serial)
 {
 	int i;
 
 	mutex_lock(&table_lock);
 	for (i = 0; i < serial->num_ports; ++i)
-		serial_table[serial->minor + i] = NULL;
+		idr_remove(&serial_minors, serial->port[i]->minor);
 	mutex_unlock(&table_lock);
+	serial->minors_reserved = 0;
 }
 
 static void destroy_serial(struct kref *kref)
@@ -136,8 +130,8 @@ static void destroy_serial(struct kref *kref)
 	serial = to_usb_serial(kref);
 
 	/* return the minor range that this device had */
-	if (serial->minor != SERIAL_TTY_NO_MINOR)
-		return_serial(serial);
+	if (serial->minors_reserved)
+		release_minors(serial);
 
 	if (serial->attached && serial->type->release)
 		serial->type->release(serial);
@@ -186,13 +180,11 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
 	struct usb_serial_port *port;
 	int retval = -ENODEV;
 
-	serial = usb_serial_get_by_index(idx);
-	if (!serial)
+	port = usb_serial_port_get_by_minor(idx);
+	if (!port)
 		return retval;
 
-	port = serial->port[idx - serial->minor];
-	if (!port)
-		goto error_no_port;
+	serial = port->serial;
 	if (!try_module_get(serial->type->driver.owner))
 		goto error_module_get;
 
@@ -219,7 +211,6 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
  error_get_interface:
 	module_put(serial->type->driver.owner);
  error_module_get:
- error_no_port:
 	usb_serial_put(serial);
 	mutex_unlock(&serial->disc_mutex);
 	return retval;
@@ -453,14 +444,16 @@ static int serial_break(struct tty_struct *tty, int break_state)
 static int serial_proc_show(struct seq_file *m, void *v)
 {
 	struct usb_serial *serial;
+	struct usb_serial_port *port;
 	int i;
 	char tmp[40];
 
 	seq_puts(m, "usbserinfo:1.0 driver:2.0\n");
 	for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
-		serial = usb_serial_get_by_index(i);
-		if (serial == NULL)
+		port = usb_serial_port_get_by_minor(i);
+		if (port == NULL)
 			continue;
+		serial = port->serial;
 
 		seq_printf(m, "%d:", i);
 		if (serial->type->driver.owner)
@@ -472,7 +465,7 @@ static int serial_proc_show(struct seq_file *m, void *v)
 			le16_to_cpu(serial->dev->descriptor.idVendor),
 			le16_to_cpu(serial->dev->descriptor.idProduct));
 		seq_printf(m, " num_ports:%d", serial->num_ports);
-		seq_printf(m, " port:%d", i - serial->minor + 1);
+		seq_printf(m, " port:%d", port->port_number);
 		usb_make_path(serial->dev, tmp, sizeof(tmp));
 		seq_printf(m, " path:%s", tmp);
 
@@ -614,7 +607,7 @@ static struct usb_serial *create_serial(struct usb_device *dev,
 	serial->interface = usb_get_intf(interface);
 	kref_init(&serial->kref);
 	mutex_init(&serial->disc_mutex);
-	serial->minor = SERIAL_TTY_NO_MINOR;
+	serial->minors_reserved = 0;
 
 	return serial;
 }
@@ -723,7 +716,6 @@ static int usb_serial_probe(struct usb_interface *interface,
 	struct usb_endpoint_descriptor *bulk_out_endpoint[MAX_NUM_PORTS];
 	struct usb_serial_driver *type = NULL;
 	int retval;
-	unsigned int minor;
 	int buffer_size;
 	int i;
 	int j;
@@ -1040,11 +1032,10 @@ static int usb_serial_probe(struct usb_interface *interface,
 	 */
 	serial->disconnected = 1;
 
-	if (get_free_serial(serial, num_ports, &minor) == NULL) {
-		dev_err(ddev, "No more free serial devices\n");
+	if (allocate_minors(serial, num_ports)) {
+		dev_err(ddev, "No more free serial minor numbers\n");
 		goto probe_error;
 	}
-	serial->minor = minor;
 
 	/* register all of the individual ports with the driver core */
 	for (i = 0; i < num_ports; ++i) {
@@ -1060,7 +1051,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 
 	serial->disconnected = 0;
 
-	usb_serial_console_init(minor);
+	usb_serial_console_init(serial->port[0]->minor);
 exit:
 	module_put(type->driver.owner);
 	return 0;
@@ -1224,7 +1215,6 @@ static struct usb_driver usb_serial_driver = {
 
 static int __init usb_serial_init(void)
 {
-	int i;
 	int result;
 
 	usb_serial_tty_driver = alloc_tty_driver(SERIAL_TTY_MINORS);
@@ -1232,9 +1222,6 @@ static int __init usb_serial_init(void)
 		return -ENOMEM;
 
 	/* Initialize our global data */
-	for (i = 0; i < SERIAL_TTY_MINORS; ++i)
-		serial_table[i] = NULL;
-
 	result = bus_register(&usb_serial_bus_type);
 	if (result) {
 		pr_err("%s - registering bus driver failed\n", __func__);
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index eacc27dc4657..8257d30c4072 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -124,7 +124,7 @@ static int get_serial_info(struct usb_serial_port *port,
 		return -EFAULT;
 
 	memset(&tmp, 0, sizeof(tmp));
-	tmp.line            = port->serial->minor;
+	tmp.line            = port->minor;
 	tmp.port            = port->port_number;
 	tmp.baud_base       = tty_get_baud_rate(port->port.tty);
 	tmp.close_delay	    = port->port.close_delay / 10;
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 7eb34cd6b579..36a7740e827c 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -461,7 +461,7 @@ static int whiteheat_ioctl(struct tty_struct *tty,
 	case TIOCGSERIAL:
 		memset(&serstruct, 0, sizeof(serstruct));
 		serstruct.type = PORT_16654;
-		serstruct.line = port->serial->minor;
+		serstruct.line = port->minor;
 		serstruct.port = port->port_number;
 		serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
 		serstruct.xmit_fifo_size = kfifo_size(&port->write_fifo);
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 3fa68b615ac1..9254c80a1cf8 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -21,7 +21,6 @@
 
 #define SERIAL_TTY_MAJOR	188	/* Nice legal number now */
 #define SERIAL_TTY_MINORS	254	/* loads of devices :) */
-#define SERIAL_TTY_NO_MINOR	255	/* No minor was assigned */
 
 /* The maximum number of ports one device can grab at once */
 #define MAX_NUM_PORTS		8
@@ -142,7 +141,6 @@ static inline void usb_set_serial_port_data(struct usb_serial_port *port,
  * @dev: pointer to the struct usb_device for this device
  * @type: pointer to the struct usb_serial_driver for this device
  * @interface: pointer to the struct usb_interface for this device
- * @minor: the starting minor number for this device
  * @num_ports: the number of ports this device has
  * @num_interrupt_in: number of interrupt in endpoints we have
  * @num_interrupt_out: number of interrupt out endpoints we have
@@ -161,7 +159,7 @@ struct usb_serial {
 	unsigned char			disconnected:1;
 	unsigned char			suspending:1;
 	unsigned char			attached:1;
-	unsigned char			minor;
+	unsigned char			minors_reserved:1;
 	unsigned char			num_ports;
 	unsigned char			num_port_pointers;
 	char				num_interrupt_in;
@@ -321,7 +319,7 @@ static inline void usb_serial_console_disconnect(struct usb_serial *serial) {}
 #endif
 
 /* Functions needed by other parts of the usbserial core */
-extern struct usb_serial *usb_serial_get_by_index(unsigned int minor);
+extern struct usb_serial_port *usb_serial_port_get_by_minor(unsigned int minor);
 extern void usb_serial_put(struct usb_serial *serial);
 extern int usb_serial_generic_open(struct tty_struct *tty,
 	struct usb_serial_port *port);
-- 
cgit v1.2.3


From 455b4f7e18e741c0603f9030f9a1897f4c5150c1 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 6 Jun 2013 10:31:35 -0700
Subject: USB: serial: increase the number of devices we support

We had the limit of 255 USB to serial devices on one system for almost
15 years, with no complaints.  But now it's time to move on from these
tiny "baby" systems, and bump the number up to 512, which should last
us a few more years:
	"512 is a nice number" -- Tobias Winter

Note, this is still a static value, and uses up tty core memory with
this many tty devices allocated.  Converting the driver to use
TTY_DRIVER_DYNAMIC_DEV is the next thing to do in order to remove this
limitation.

Reported-by: Tobias Winter <tobias@linuxdingsda.de>
Tested-by: Tobias Winter <tobias@linuxdingsda.de>
Reviewed-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/usb-serial.c | 9 ++++++---
 include/linux/usb/serial.h      | 3 ---
 2 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index e2e131f85002..cb27fcb2fc90 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -43,6 +43,9 @@
 #define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
 #define DRIVER_DESC "USB Serial Driver core"
 
+#define USB_SERIAL_TTY_MAJOR	188
+#define USB_SERIAL_TTY_MINORS	512	/* should be enough for a while */
+
 /* There is no MODULE_DEVICE_TABLE for usbserial.c.  Instead
    the MODULE_DEVICE_TABLE declarations in each serial driver
    cause the "hotplug" program to pull in whatever module is necessary
@@ -449,7 +452,7 @@ static int serial_proc_show(struct seq_file *m, void *v)
 	char tmp[40];
 
 	seq_puts(m, "usbserinfo:1.0 driver:2.0\n");
-	for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
+	for (i = 0; i < USB_SERIAL_TTY_MINORS; ++i) {
 		port = usb_serial_port_get_by_minor(i);
 		if (port == NULL)
 			continue;
@@ -1217,7 +1220,7 @@ static int __init usb_serial_init(void)
 {
 	int result;
 
-	usb_serial_tty_driver = alloc_tty_driver(SERIAL_TTY_MINORS);
+	usb_serial_tty_driver = alloc_tty_driver(USB_SERIAL_TTY_MINORS);
 	if (!usb_serial_tty_driver)
 		return -ENOMEM;
 
@@ -1230,7 +1233,7 @@ static int __init usb_serial_init(void)
 
 	usb_serial_tty_driver->driver_name = "usbserial";
 	usb_serial_tty_driver->name = "ttyUSB";
-	usb_serial_tty_driver->major = SERIAL_TTY_MAJOR;
+	usb_serial_tty_driver->major = USB_SERIAL_TTY_MAJOR;
 	usb_serial_tty_driver->minor_start = 0;
 	usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
 	usb_serial_tty_driver->subtype = SERIAL_TYPE_NORMAL;
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 9254c80a1cf8..d528b8045150 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -19,9 +19,6 @@
 #include <linux/sysrq.h>
 #include <linux/kfifo.h>
 
-#define SERIAL_TTY_MAJOR	188	/* Nice legal number now */
-#define SERIAL_TTY_MINORS	254	/* loads of devices :) */
-
 /* The maximum number of ports one device can grab at once */
 #define MAX_NUM_PORTS		8
 
-- 
cgit v1.2.3


From 1c9af65357a309b60d78a442bd61d27cad458d00 Mon Sep 17 00:00:00 2001
From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Thu, 13 Jun 2013 17:59:55 +0300
Subject: usb: add devicetree helpers for determining dr_mode and phy_type

This adds two little devicetree helper functions for determining the
dr_mode (host, peripheral, otg) and phy_type (utmi, ulpi,...) from
the devicetree.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/phy/Makefile |  1 +
 drivers/usb/phy/of.c     | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 drivers/usb/usb-common.c | 35 +++++++++++++++++++++++++++++++++++
 include/linux/usb/of.h   | 28 ++++++++++++++++++++++++++++
 include/linux/usb/otg.h  |  7 +++++++
 include/linux/usb/phy.h  |  9 +++++++++
 6 files changed, 127 insertions(+)
 create mode 100644 drivers/usb/phy/of.c
 create mode 100644 include/linux/usb/of.h

(limited to 'include/linux')

diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index a9169cb1e6fc..070eca3af18b 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -5,6 +5,7 @@
 ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG
 
 obj-$(CONFIG_USB_PHY)			+= phy.o
+obj-$(CONFIG_OF)			+= of.o
 
 # transceiver drivers, keep the list sorted
 
diff --git a/drivers/usb/phy/of.c b/drivers/usb/phy/of.c
new file mode 100644
index 000000000000..7ea0154da9d5
--- /dev/null
+++ b/drivers/usb/phy/of.c
@@ -0,0 +1,47 @@
+/*
+ * USB of helper code
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/usb/of.h>
+#include <linux/usb/otg.h>
+
+static const char *const usbphy_modes[] = {
+	[USBPHY_INTERFACE_MODE_UNKNOWN]	= "",
+	[USBPHY_INTERFACE_MODE_UTMI]	= "utmi",
+	[USBPHY_INTERFACE_MODE_UTMIW]	= "utmi_wide",
+	[USBPHY_INTERFACE_MODE_ULPI]	= "ulpi",
+	[USBPHY_INTERFACE_MODE_SERIAL]	= "serial",
+	[USBPHY_INTERFACE_MODE_HSIC]	= "hsic",
+};
+
+/**
+ * of_usb_get_phy_mode - Get phy mode for given device_node
+ * @np:	Pointer to the given device_node
+ *
+ * The function gets phy interface string from property 'phy_type',
+ * and returns the correspondig enum usb_phy_interface
+ */
+enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
+{
+	const char *phy_type;
+	int err, i;
+
+	err = of_property_read_string(np, "phy_type", &phy_type);
+	if (err < 0)
+		return USBPHY_INTERFACE_MODE_UNKNOWN;
+
+	for (i = 0; i < ARRAY_SIZE(usbphy_modes); i++)
+		if (!strcmp(phy_type, usbphy_modes[i]))
+			return i;
+
+	return USBPHY_INTERFACE_MODE_UNKNOWN;
+}
+EXPORT_SYMBOL_GPL(of_usb_get_phy_mode);
diff --git a/drivers/usb/usb-common.c b/drivers/usb/usb-common.c
index 0db0a919d72b..675384dabfe9 100644
--- a/drivers/usb/usb-common.c
+++ b/drivers/usb/usb-common.c
@@ -13,7 +13,9 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/usb/ch9.h>
+#include <linux/usb/of.h>
 #include <linux/usb/otg.h>
 
 const char *usb_otg_state_string(enum usb_otg_state state)
@@ -79,4 +81,37 @@ const char *usb_state_string(enum usb_device_state state)
 }
 EXPORT_SYMBOL_GPL(usb_state_string);
 
+#ifdef CONFIG_OF
+static const char *const usb_dr_modes[] = {
+	[USB_DR_MODE_UNKNOWN]		= "",
+	[USB_DR_MODE_HOST]		= "host",
+	[USB_DR_MODE_PERIPHERAL]	= "peripheral",
+	[USB_DR_MODE_OTG]		= "otg",
+};
+
+/**
+ * of_usb_get_dr_mode - Get dual role mode for given device_node
+ * @np:	Pointer to the given device_node
+ *
+ * The function gets phy interface string from property 'dr_mode',
+ * and returns the correspondig enum usb_dr_mode
+ */
+enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
+{
+	const char *dr_mode;
+	int err, i;
+
+	err = of_property_read_string(np, "dr_mode", &dr_mode);
+	if (err < 0)
+		return USB_DR_MODE_UNKNOWN;
+
+	for (i = 0; i < ARRAY_SIZE(usb_dr_modes); i++)
+		if (!strcmp(dr_mode, usb_dr_modes[i]))
+			return i;
+
+	return USB_DR_MODE_UNKNOWN;
+}
+EXPORT_SYMBOL_GPL(of_usb_get_dr_mode);
+#endif
+
 MODULE_LICENSE("GPL");
diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
new file mode 100644
index 000000000000..e460a24115ca
--- /dev/null
+++ b/include/linux/usb/of.h
@@ -0,0 +1,28 @@
+/*
+ * OF helpers for usb devices.
+ *
+ * This file is released under the GPLv2
+ */
+
+#ifndef __LINUX_USB_OF_H
+#define __LINUX_USB_OF_H
+
+#include <linux/usb/otg.h>
+#include <linux/usb/phy.h>
+
+#ifdef CONFIG_OF
+enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
+enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
+#else
+static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
+{
+	return USBPHY_INTERFACE_MODE_UNKNOWN;
+}
+
+static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
+{
+	return USB_DR_MODE_UNKNOWN;
+}
+#endif
+
+#endif /* __LINUX_USB_OF_H */
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 291e01ba32e5..154332b7c8c0 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -92,4 +92,11 @@ otg_start_srp(struct usb_otg *otg)
 /* for OTG controller drivers (and maybe other stuff) */
 extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
 
+enum usb_dr_mode {
+	USB_DR_MODE_UNKNOWN,
+	USB_DR_MODE_HOST,
+	USB_DR_MODE_PERIPHERAL,
+	USB_DR_MODE_OTG,
+};
+
 #endif /* __LINUX_USB_OTG_H */
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index 6b5978f57633..44036808bf0f 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -12,6 +12,15 @@
 #include <linux/notifier.h>
 #include <linux/usb.h>
 
+enum usb_phy_interface {
+	USBPHY_INTERFACE_MODE_UNKNOWN,
+	USBPHY_INTERFACE_MODE_UTMI,
+	USBPHY_INTERFACE_MODE_UTMIW,
+	USBPHY_INTERFACE_MODE_ULPI,
+	USBPHY_INTERFACE_MODE_SERIAL,
+	USBPHY_INTERFACE_MODE_HSIC,
+};
+
 enum usb_phy_events {
 	USB_EVENT_NONE,         /* no events or cable disconnected */
 	USB_EVENT_VBUS,         /* vbus valid event */
-- 
cgit v1.2.3


From 40dcd0e8067b35e247f74409d79443634daf35ac Mon Sep 17 00:00:00 2001
From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Thu, 13 Jun 2013 17:59:56 +0300
Subject: usb: chipidea: add PTW, PTS and STS handling

This patch makes it possible to configure the PTW, PTS and STS bits
inside the portsc register for host and device mode before the driver
starts and the phy can be addressed as hardware implementation is
designed.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/usb/ci13xxx-imx.txt        |  5 +++
 drivers/usb/chipidea/bits.h                        | 16 +++++++-
 drivers/usb/chipidea/core.c                        | 48 ++++++++++++++++++++++
 include/linux/usb/chipidea.h                       |  1 +
 4 files changed, 69 insertions(+), 1 deletion(-)

(limited to 'include/linux')

diff --git a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
index 1c04a4c9515f..184a8e0f26dc 100644
--- a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
+++ b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
@@ -5,6 +5,11 @@ Required properties:
 - reg: Should contain registers location and length
 - interrupts: Should contain controller interrupt
 
+Recommended properies:
+- phy_type: the type of the phy connected to the core. Should be one
+  of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this
+  property the PORTSC register won't be touched
+
 Optional properties:
 - fsl,usbphy: phandler of usb phy that connects to the only one port
 - fsl,usbmisc: phandler of non-core register device, with one argument
diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h
index 050de8562a04..aefa0261220c 100644
--- a/drivers/usb/chipidea/bits.h
+++ b/drivers/usb/chipidea/bits.h
@@ -48,10 +48,24 @@
 #define PORTSC_SUSP           BIT(7)
 #define PORTSC_HSP            BIT(9)
 #define PORTSC_PTC            (0x0FUL << 16)
+/* PTS and PTW for non lpm version only */
+#define PORTSC_PTS(d)						\
+	((((d) & 0x3) << 30) | (((d) & 0x4) ? BIT(25) : 0))
+#define PORTSC_PTW            BIT(28)
+#define PORTSC_STS            BIT(29)
 
 /* DEVLC */
 #define DEVLC_PSPD            (0x03UL << 25)
-#define    DEVLC_PSPD_HS      (0x02UL << 25)
+#define DEVLC_PSPD_HS         (0x02UL << 25)
+#define DEVLC_PTW             BIT(27)
+#define DEVLC_STS             BIT(28)
+#define DEVLC_PTS(d)          (((d) & 0x7) << 29)
+
+/* Encoding for DEVLC_PTS and PORTSC_PTS */
+#define PTS_UTMI              0
+#define PTS_ULPI              2
+#define PTS_SERIAL            3
+#define PTS_HSIC              4
 
 /* OTGSC */
 #define OTGSC_IDPU	      BIT(5)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index a40e944401d2..a25f6b68550f 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -63,6 +63,8 @@
 #include <linux/usb/gadget.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/chipidea.h>
+#include <linux/usb/of.h>
+#include <linux/phy.h>
 
 #include "ci.h"
 #include "udc.h"
@@ -207,6 +209,45 @@ static int hw_device_init(struct ci13xxx *ci, void __iomem *base)
 	return 0;
 }
 
+static void hw_phymode_configure(struct ci13xxx *ci)
+{
+	u32 portsc, lpm, sts;
+
+	switch (ci->platdata->phy_mode) {
+	case USBPHY_INTERFACE_MODE_UTMI:
+		portsc = PORTSC_PTS(PTS_UTMI);
+		lpm = DEVLC_PTS(PTS_UTMI);
+		break;
+	case USBPHY_INTERFACE_MODE_UTMIW:
+		portsc = PORTSC_PTS(PTS_UTMI) | PORTSC_PTW;
+		lpm = DEVLC_PTS(PTS_UTMI) | DEVLC_PTW;
+		break;
+	case USBPHY_INTERFACE_MODE_ULPI:
+		portsc = PORTSC_PTS(PTS_ULPI);
+		lpm = DEVLC_PTS(PTS_ULPI);
+		break;
+	case USBPHY_INTERFACE_MODE_SERIAL:
+		portsc = PORTSC_PTS(PTS_SERIAL);
+		lpm = DEVLC_PTS(PTS_SERIAL);
+		sts = 1;
+		break;
+	case USBPHY_INTERFACE_MODE_HSIC:
+		portsc = PORTSC_PTS(PTS_HSIC);
+		lpm = DEVLC_PTS(PTS_HSIC);
+		break;
+	default:
+		return;
+	}
+
+	if (ci->hw_bank.lpm) {
+		hw_write(ci, OP_DEVLC, DEVLC_PTS(7) | DEVLC_PTW, lpm);
+		hw_write(ci, OP_DEVLC, DEVLC_STS, sts);
+	} else {
+		hw_write(ci, OP_PORTSC, PORTSC_PTS(7) | PORTSC_PTW, portsc);
+		hw_write(ci, OP_PORTSC, PORTSC_STS, sts);
+	}
+}
+
 /**
  * hw_device_reset: resets chip (execute without interruption)
  * @ci: the controller
@@ -223,6 +264,7 @@ int hw_device_reset(struct ci13xxx *ci, u32 mode)
 	while (hw_read(ci, OP_USBCMD, USBCMD_RST))
 		udelay(10);		/* not RTOS friendly */
 
+	hw_phymode_configure(ci);
 
 	if (ci->platdata->notify_event)
 		ci->platdata->notify_event(ci,
@@ -369,6 +411,9 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	if (!dev->of_node && dev->parent)
+		dev->of_node = dev->parent->of_node;
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(base))
@@ -408,6 +453,9 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	if (!ci->platdata->phy_mode)
+		ci->platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
+
 	/* initialize role(s) before the interrupt is requested */
 	ret = ci_hdrc_host_init(ci);
 	if (ret)
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index 544825dde823..1a2aa1848804 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -14,6 +14,7 @@ struct ci13xxx_platform_data {
 	uintptr_t	 capoffset;
 	unsigned	 power_budget;
 	struct usb_phy	*phy;
+	enum usb_phy_interface phy_mode;
 	unsigned long	 flags;
 #define CI13XXX_REGS_SHARED		BIT(0)
 #define CI13XXX_REQUIRE_TRANSCEIVER	BIT(1)
-- 
cgit v1.2.3


From 691962d1593a16d5c8c9a5bb60b586ac3e54acc8 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 13 Jun 2013 17:59:57 +0300
Subject: usb: chipidea: introduce dual role mode pdata flags

Even if a chipidea core is otg capable the board may not be. This allows
to explicitly set the core to host/peripheral mode. Without these flags
the driver falls back to the old behaviour.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/usb/ci13xxx-imx.txt        |  1 +
 drivers/usb/chipidea/core.c                        | 24 ++++++++++++++++------
 include/linux/usb/chipidea.h                       |  2 +-
 3 files changed, 20 insertions(+), 7 deletions(-)

(limited to 'include/linux')

diff --git a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
index 184a8e0f26dc..b4b5b7906c88 100644
--- a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
+++ b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
@@ -9,6 +9,7 @@ Recommended properies:
 - phy_type: the type of the phy connected to the core. Should be one
   of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this
   property the PORTSC register won't be touched
+- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg"
 
 Optional properties:
 - fsl,usbphy: phandler of usb phy that connects to the only one port
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index a25f6b68550f..66c6c7157bb9 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -405,6 +405,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	struct resource	*res;
 	void __iomem	*base;
 	int		ret;
+	enum usb_dr_mode dr_mode;
 
 	if (!dev->platform_data) {
 		dev_err(dev, "platform data missing\n");
@@ -456,14 +457,25 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	if (!ci->platdata->phy_mode)
 		ci->platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
 
+	if (!ci->platdata->dr_mode)
+		ci->platdata->dr_mode = of_usb_get_dr_mode(dev->of_node);
+
+	if (ci->platdata->dr_mode == USB_DR_MODE_UNKNOWN)
+		ci->platdata->dr_mode = USB_DR_MODE_OTG;
+
+	dr_mode = ci->platdata->dr_mode;
 	/* initialize role(s) before the interrupt is requested */
-	ret = ci_hdrc_host_init(ci);
-	if (ret)
-		dev_info(dev, "doesn't support host\n");
+	if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) {
+		ret = ci_hdrc_host_init(ci);
+		if (ret)
+			dev_info(dev, "doesn't support host\n");
+	}
 
-	ret = ci_hdrc_gadget_init(ci);
-	if (ret)
-		dev_info(dev, "doesn't support gadget\n");
+	if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_PERIPHERAL) {
+		ret = ci_hdrc_gadget_init(ci);
+		if (ret)
+			dev_info(dev, "doesn't support gadget\n");
+	}
 
 	if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) {
 		dev_err(dev, "no supported roles\n");
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index 1a2aa1848804..b3146476be5c 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -20,7 +20,7 @@ struct ci13xxx_platform_data {
 #define CI13XXX_REQUIRE_TRANSCEIVER	BIT(1)
 #define CI13XXX_PULLUP_ON_VBUS		BIT(2)
 #define CI13XXX_DISABLE_STREAMING	BIT(3)
-
+	enum usb_dr_mode	dr_mode;
 #define CI13XXX_CONTROLLER_RESET_EVENT		0
 #define CI13XXX_CONTROLLER_STOPPED_EVENT	1
 	void	(*notify_event) (struct ci13xxx *ci, unsigned event);
-- 
cgit v1.2.3


From 91a687d8fe39bf100286138f0ed1ef1e7b32cfb8 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Thu, 13 Jun 2013 11:24:11 -0600
Subject: USB: EHCI: tegra: fix circular module dependencies

The Tegra EHCI driver directly calls various functions in the Tegra USB
PHY driver. The reverse is also true; the PHY driver calls into the EHCI
driver. This is problematic when the two are built as modules.

The calls from the PHY to EHCI driver were originally added in commit
bbdabdb "usb: add APIs to access host registers from Tegra PHY", for the
following reasons:

1) The register being touched is an EHCI register, so logically only the
   EHCI driver should touch it.
2) (1) implies that some locking may be needed to correctly implement the
   r/m/w access to this shared register.
3) We were expecting to pass only the PHY register space to the Tegra PHY
   driver, and hence it would not have access to touch the shared
   registers.

To solve this, that commit added functions in the EHCI driver to touch the
shared register on behalf of the PHY driver.

In practice, we ended up not having any locking in the implementaiton of
those functions, and I've been led to believe this is safe. Equally, (3)
did not happen either. Hence, it is possible for the PHY driver to touch
the shared register directly.

Given that, this patch moves the code to touch the shared register back
into the PHY driver, to eliminate the module problems. If we actually
need locking or co-ordination in the future, I propose we put the lock
support into some pre-existing core module, or into a third separate
module, in order to avoid the circular dependencies.

I apologize for my contribution to code churn here.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-tegra.c     | 36 ------------------------------------
 drivers/usb/phy/phy-tegra-usb.c   | 39 ++++++++++++++++++++++++++++++++++++---
 include/linux/usb/tegra_usb_phy.h |  4 ----
 3 files changed, 36 insertions(+), 43 deletions(-)

(limited to 'include/linux')

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index dde518969798..80634292efee 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -34,11 +34,6 @@
 #define TEGRA_USB2_BASE			0xC5004000
 #define TEGRA_USB3_BASE			0xC5008000
 
-/* PORTSC registers */
-#define TEGRA_USB_PORTSC1			0x184
-#define TEGRA_USB_PORTSC1_PTS(x)	(((x) & 0x3) << 30)
-#define TEGRA_USB_PORTSC1_PHCD	(1 << 23)
-
 #define TEGRA_USB_DMA_ALIGN 32
 
 struct tegra_ehci_hcd {
@@ -380,37 +375,6 @@ static int setup_vbus_gpio(struct platform_device *pdev,
 	return err;
 }
 
-/* Bits of PORTSC1, which will get cleared by writing 1 into them */
-#define TEGRA_PORTSC1_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC)
-
-void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val)
-{
-	unsigned long val;
-	struct usb_hcd *hcd = bus_to_hcd(x->otg->host);
-	void __iomem *base = hcd->regs;
-
-	val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS;
-	val &= ~TEGRA_USB_PORTSC1_PTS(3);
-	val |= TEGRA_USB_PORTSC1_PTS(pts_val & 3);
-	writel(val, base + TEGRA_USB_PORTSC1);
-}
-EXPORT_SYMBOL_GPL(tegra_ehci_set_pts);
-
-void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
-{
-	unsigned long val;
-	struct usb_hcd *hcd = bus_to_hcd(x->otg->host);
-	void __iomem *base = hcd->regs;
-
-	val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS;
-	if (enable)
-		val |= TEGRA_USB_PORTSC1_PHCD;
-	else
-		val &= ~TEGRA_USB_PORTSC1_PHCD;
-	writel(val, base + TEGRA_USB_PORTSC1);
-}
-EXPORT_SYMBOL_GPL(tegra_ehci_set_phcd);
-
 static int tegra_ehci_probe(struct platform_device *pdev)
 {
 	struct resource *res;
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index f0727f20e803..3446245e932b 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -32,11 +32,20 @@
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
 #include <asm/mach-types.h>
+#include <linux/usb/ehci_def.h>
 #include <linux/usb/tegra_usb_phy.h>
 #include <linux/module.h>
 
 #define ULPI_VIEWPORT		0x170
 
+/* PORTSC registers */
+#define TEGRA_USB_PORTSC1				0x184
+#define TEGRA_USB_PORTSC1_PTS(x)			(((x) & 0x3) << 30)
+#define TEGRA_USB_PORTSC1_PHCD				(1 << 23)
+
+/* Bits of PORTSC1, which will get cleared by writing 1 into them */
+#define TEGRA_PORTSC1_RWC_BITS	(PORT_CSC | PORT_PEC | PORT_OCC)
+
 #define USB_SUSP_CTRL		0x400
 #define   USB_WAKE_ON_CNNT_EN_DEV	(1 << 3)
 #define   USB_WAKE_ON_DISCON_EN_DEV	(1 << 4)
@@ -197,6 +206,30 @@ static struct tegra_utmip_config utmip_default[] = {
 	},
 };
 
+static void set_pts(struct tegra_usb_phy *phy, u8 pts_val)
+{
+	void __iomem *base = phy->regs;
+	unsigned long val;
+
+	val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS;
+	val &= ~TEGRA_USB_PORTSC1_PTS(3);
+	val |= TEGRA_USB_PORTSC1_PTS(pts_val & 3);
+	writel(val, base + TEGRA_USB_PORTSC1);
+}
+
+static void set_phcd(struct tegra_usb_phy *phy, bool enable)
+{
+	void __iomem *base = phy->regs;
+	unsigned long val;
+
+	val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS;
+	if (enable)
+		val |= TEGRA_USB_PORTSC1_PHCD;
+	else
+		val &= ~TEGRA_USB_PORTSC1_PHCD;
+	writel(val, base + TEGRA_USB_PORTSC1);
+}
+
 static int utmip_pad_open(struct tegra_usb_phy *phy)
 {
 	phy->pad_clk = devm_clk_get(phy->dev, "utmi-pads");
@@ -283,7 +316,7 @@ static void utmi_phy_clk_disable(struct tegra_usb_phy *phy)
 		val &= ~USB_SUSP_SET;
 		writel(val, base + USB_SUSP_CTRL);
 	} else
-		tegra_ehci_set_phcd(&phy->u_phy, true);
+		set_phcd(phy, true);
 
 	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID, 0) < 0)
 		pr_err("%s: timeout waiting for phy to stabilize\n", __func__);
@@ -305,7 +338,7 @@ static void utmi_phy_clk_enable(struct tegra_usb_phy *phy)
 		val &= ~USB_SUSP_CLR;
 		writel(val, base + USB_SUSP_CTRL);
 	} else
-		tegra_ehci_set_phcd(&phy->u_phy, false);
+		set_phcd(phy, false);
 
 	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID,
 						     USB_PHY_CLK_VALID))
@@ -428,7 +461,7 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy)
 	utmi_phy_clk_enable(phy);
 
 	if (!phy->is_legacy_phy)
-		tegra_ehci_set_pts(&phy->u_phy, 0);
+		set_pts(phy, 0);
 
 	return 0;
 }
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index 0cd15d2df53d..d2ca919a5b73 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -76,8 +76,4 @@ void tegra_ehci_phy_restore_start(struct usb_phy *phy,
 
 void tegra_ehci_phy_restore_end(struct usb_phy *phy);
 
-void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val);
-
-void tegra_ehci_set_phcd(struct usb_phy *x, bool enable);
-
 #endif /* __TEGRA_USB_PHY_H */
-- 
cgit v1.2.3


From 848d5b9121e52f63847bf9e156f836db001f51c7 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Mon, 24 Jun 2013 09:25:59 +0800
Subject: usb: fix build error without CONFIG_USB_PHY

on i386:

drivers/built-in.o: In function `ci_hdrc_probe':
core.c:(.text+0x20446b): undefined reference to `of_usb_get_phy_mode'

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb/of.h | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

(limited to 'include/linux')

diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
index e460a24115ca..a0ef405368b8 100644
--- a/include/linux/usb/of.h
+++ b/include/linux/usb/of.h
@@ -10,19 +10,23 @@
 #include <linux/usb/otg.h>
 #include <linux/usb/phy.h>
 
-#ifdef CONFIG_OF
-enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
+#if IS_ENABLED(CONFIG_OF)
 enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
 #else
-static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
+static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
 {
-	return USBPHY_INTERFACE_MODE_UNKNOWN;
+	return USB_DR_MODE_UNKNOWN;
 }
+#endif
 
-static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
+#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_PHY)
+enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
+#else
+static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
 {
-	return USB_DR_MODE_UNKNOWN;
+	return USBPHY_INTERFACE_MODE_UNKNOWN;
 }
+
 #endif
 
 #endif /* __LINUX_USB_OF_H */
-- 
cgit v1.2.3


From 8e22978c57087aac4d88693278db1cc3e94f1253 Mon Sep 17 00:00:00 2001
From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Date: Mon, 24 Jun 2013 14:46:36 +0300
Subject: usb: chipidea: drop "13xxx" infix

"ci13xxx" is bad for at least the following reasons:
  * people often mistype it
  * it doesn't add any informational value to the names it's used in
  * it needlessly attracts mail filters

This patch replaces it with "ci_hdrc", "ci_udc" or "ci_hw", depending
on the situation. Modules with ci13xxx prefix are also renamed accordingly
and aliases are added for compatibility. Otherwise, no functional changes.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/Makefile      |   6 +-
 drivers/usb/chipidea/ci.h          |  50 ++++----
 drivers/usb/chipidea/ci13xxx_imx.c | 254 -------------------------------------
 drivers/usb/chipidea/ci13xxx_imx.h |  31 -----
 drivers/usb/chipidea/ci13xxx_msm.c |  99 ---------------
 drivers/usb/chipidea/ci13xxx_pci.c | 148 ---------------------
 drivers/usb/chipidea/ci_hdrc_imx.c | 254 +++++++++++++++++++++++++++++++++++++
 drivers/usb/chipidea/ci_hdrc_imx.h |  31 +++++
 drivers/usb/chipidea/ci_hdrc_msm.c | 100 +++++++++++++++
 drivers/usb/chipidea/ci_hdrc_pci.c | 149 ++++++++++++++++++++++
 drivers/usb/chipidea/core.c        |  36 +++---
 drivers/usb/chipidea/debug.c       |  34 ++---
 drivers/usb/chipidea/debug.h       |   8 +-
 drivers/usb/chipidea/host.c        |  10 +-
 drivers/usb/chipidea/host.h        |   4 +-
 drivers/usb/chipidea/udc.c         | 217 ++++++++++++++++---------------
 drivers/usb/chipidea/udc.h         |  16 +--
 drivers/usb/chipidea/usbmisc_imx.c |   2 +-
 include/linux/usb/chipidea.h       |  28 ++--
 19 files changed, 739 insertions(+), 738 deletions(-)
 delete mode 100644 drivers/usb/chipidea/ci13xxx_imx.c
 delete mode 100644 drivers/usb/chipidea/ci13xxx_imx.h
 delete mode 100644 drivers/usb/chipidea/ci13xxx_msm.c
 delete mode 100644 drivers/usb/chipidea/ci13xxx_pci.c
 create mode 100644 drivers/usb/chipidea/ci_hdrc_imx.c
 create mode 100644 drivers/usb/chipidea/ci_hdrc_imx.h
 create mode 100644 drivers/usb/chipidea/ci_hdrc_msm.c
 create mode 100644 drivers/usb/chipidea/ci_hdrc_pci.c

(limited to 'include/linux')

diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index 4ab83e98219b..3bbbcba03815 100644
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -9,13 +9,13 @@ ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG)	+= debug.o
 
 # Glue/Bridge layers go here
 
-obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_msm.o
+obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_msm.o
 
 # PCI doesn't provide stubs, need to check
 ifneq ($(CONFIG_PCI),)
-	obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_pci.o
+	obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_pci.o
 endif
 
 ifneq ($(CONFIG_OF_DEVICE),)
-	obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_imx.o usbmisc_imx.o
+	obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_imx.o usbmisc_imx.o
 endif
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 9ef686086c24..33cb29f36e06 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -22,14 +22,14 @@
  * DEFINE
  *****************************************************************************/
 #define TD_PAGE_COUNT      5
-#define CI13XXX_PAGE_SIZE  4096ul /* page size for TD's */
+#define CI_HDRC_PAGE_SIZE  4096ul /* page size for TD's */
 #define ENDPT_MAX          32
 
 /******************************************************************************
  * STRUCTURES
  *****************************************************************************/
 /**
- * struct ci13xxx_ep - endpoint representation
+ * struct ci_hw_ep - endpoint representation
  * @ep: endpoint structure for gadget drivers
  * @dir: endpoint direction (TX/RX)
  * @num: endpoint number
@@ -41,7 +41,7 @@
  * @lock: pointer to controller's spinlock
  * @td_pool: pointer to controller's TD pool
  */
-struct ci13xxx_ep {
+struct ci_hw_ep {
 	struct usb_ep				ep;
 	u8					dir;
 	u8					num;
@@ -49,13 +49,13 @@ struct ci13xxx_ep {
 	char					name[16];
 	struct {
 		struct list_head	queue;
-		struct ci13xxx_qh	*ptr;
+		struct ci_hw_qh		*ptr;
 		dma_addr_t		dma;
 	}					qh;
 	int					wedge;
 
 	/* global resources */
-	struct ci13xxx				*ci;
+	struct ci_hdrc				*ci;
 	spinlock_t				*lock;
 	struct dma_pool				*td_pool;
 	struct td_node				*pending_td;
@@ -75,9 +75,9 @@ enum ci_role {
  * name: role name string (host/gadget)
  */
 struct ci_role_driver {
-	int		(*start)(struct ci13xxx *);
-	void		(*stop)(struct ci13xxx *);
-	irqreturn_t	(*irq)(struct ci13xxx *);
+	int		(*start)(struct ci_hdrc *);
+	void		(*stop)(struct ci_hdrc *);
+	irqreturn_t	(*irq)(struct ci_hdrc *);
 	const char	*name;
 };
 
@@ -102,7 +102,7 @@ struct hw_bank {
 };
 
 /**
- * struct ci13xxx - chipidea device representation
+ * struct ci_hdrc - chipidea device representation
  * @dev: pointer to parent device
  * @lock: access synchronization
  * @hw_bank: hardware register mapping
@@ -117,7 +117,7 @@ struct hw_bank {
  * @gadget: device side representation for peripheral controller
  * @driver: gadget driver
  * @hw_ep_max: total number of endpoints supported by hardware
- * @ci13xxx_ep: array of endpoints
+ * @ci_hw_ep: array of endpoints
  * @ep0_dir: ep0 direction
  * @ep0out: pointer to ep0 OUT endpoint
  * @ep0in: pointer to ep0 IN endpoint
@@ -133,7 +133,7 @@ struct hw_bank {
  * @hcd: pointer to usb_hcd for ehci host driver
  * @debugfs: root dentry for this controller in debugfs
  */
-struct ci13xxx {
+struct ci_hdrc {
 	struct device			*dev;
 	spinlock_t			lock;
 	struct hw_bank			hw_bank;
@@ -150,9 +150,9 @@ struct ci13xxx {
 	struct usb_gadget		gadget;
 	struct usb_gadget_driver	*driver;
 	unsigned			hw_ep_max;
-	struct ci13xxx_ep		ci13xxx_ep[ENDPT_MAX];
+	struct ci_hw_ep			ci_hw_ep[ENDPT_MAX];
 	u32				ep0_dir;
-	struct ci13xxx_ep		*ep0out, *ep0in;
+	struct ci_hw_ep			*ep0out, *ep0in;
 
 	struct usb_request		*status;
 	bool				setaddr;
@@ -161,7 +161,7 @@ struct ci13xxx {
 	u8				suspended;
 	u8				test_mode;
 
-	struct ci13xxx_platform_data	*platdata;
+	struct ci_hdrc_platform_data	*platdata;
 	int				vbus_active;
 	/* FIXME: some day, we'll not use global phy */
 	bool				global_phy;
@@ -170,13 +170,13 @@ struct ci13xxx {
 	struct dentry			*debugfs;
 };
 
-static inline struct ci_role_driver *ci_role(struct ci13xxx *ci)
+static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
 {
 	BUG_ON(ci->role >= CI_ROLE_END || !ci->roles[ci->role]);
 	return ci->roles[ci->role];
 }
 
-static inline int ci_role_start(struct ci13xxx *ci, enum ci_role role)
+static inline int ci_role_start(struct ci_hdrc *ci, enum ci_role role)
 {
 	int ret;
 
@@ -192,7 +192,7 @@ static inline int ci_role_start(struct ci13xxx *ci, enum ci_role role)
 	return ret;
 }
 
-static inline void ci_role_stop(struct ci13xxx *ci)
+static inline void ci_role_stop(struct ci_hdrc *ci)
 {
 	enum ci_role role = ci->role;
 
@@ -211,7 +211,7 @@ static inline void ci_role_stop(struct ci13xxx *ci)
 #define REG_BITS   (32)
 
 /* register indices */
-enum ci13xxx_regs {
+enum ci_hw_regs {
 	CAP_CAPLENGTH,
 	CAP_HCCPARAMS,
 	CAP_DCCPARAMS,
@@ -243,7 +243,7 @@ enum ci13xxx_regs {
  *
  * This function returns register contents
  */
-static inline u32 hw_read(struct ci13xxx *ci, enum ci13xxx_regs reg, u32 mask)
+static inline u32 hw_read(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask)
 {
 	return ioread32(ci->hw_bank.regmap[reg]) & mask;
 }
@@ -254,7 +254,7 @@ static inline u32 hw_read(struct ci13xxx *ci, enum ci13xxx_regs reg, u32 mask)
  * @mask: bitfield mask
  * @data: new value
  */
-static inline void hw_write(struct ci13xxx *ci, enum ci13xxx_regs reg,
+static inline void hw_write(struct ci_hdrc *ci, enum ci_hw_regs reg,
 			    u32 mask, u32 data)
 {
 	if (~mask)
@@ -271,7 +271,7 @@ static inline void hw_write(struct ci13xxx *ci, enum ci13xxx_regs reg,
  *
  * This function returns register contents
  */
-static inline u32 hw_test_and_clear(struct ci13xxx *ci, enum ci13xxx_regs reg,
+static inline u32 hw_test_and_clear(struct ci_hdrc *ci, enum ci_hw_regs reg,
 				    u32 mask)
 {
 	u32 val = ioread32(ci->hw_bank.regmap[reg]) & mask;
@@ -288,7 +288,7 @@ static inline u32 hw_test_and_clear(struct ci13xxx *ci, enum ci13xxx_regs reg,
  *
  * This function returns register contents
  */
-static inline u32 hw_test_and_write(struct ci13xxx *ci, enum ci13xxx_regs reg,
+static inline u32 hw_test_and_write(struct ci_hdrc *ci, enum ci_hw_regs reg,
 				    u32 mask, u32 data)
 {
 	u32 val = hw_read(ci, reg, ~0);
@@ -297,10 +297,10 @@ static inline u32 hw_test_and_write(struct ci13xxx *ci, enum ci13xxx_regs reg,
 	return (val & mask) >> __ffs(mask);
 }
 
-int hw_device_reset(struct ci13xxx *ci, u32 mode);
+int hw_device_reset(struct ci_hdrc *ci, u32 mode);
 
-int hw_port_test_set(struct ci13xxx *ci, u8 mode);
+int hw_port_test_set(struct ci_hdrc *ci, u8 mode);
 
-u8 hw_port_test_get(struct ci13xxx *ci);
+u8 hw_port_test_get(struct ci_hdrc *ci);
 
 #endif	/* __DRIVERS_USB_CHIPIDEA_CI_H */
diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
deleted file mode 100644
index 7e6f0674bee3..000000000000
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Copyright 2012 Freescale Semiconductor, Inc.
- * Copyright (C) 2012 Marek Vasut <marex@denx.de>
- * on behalf of DENX Software Engineering GmbH
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/module.h>
-#include <linux/of_platform.h>
-#include <linux/of_gpio.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/dma-mapping.h>
-#include <linux/usb/chipidea.h>
-#include <linux/clk.h>
-#include <linux/regulator/consumer.h>
-
-#include "ci.h"
-#include "ci13xxx_imx.h"
-
-#define pdev_to_phy(pdev) \
-	((struct usb_phy *)platform_get_drvdata(pdev))
-
-struct ci13xxx_imx_data {
-	struct usb_phy *phy;
-	struct platform_device *ci_pdev;
-	struct clk *clk;
-	struct regulator *reg_vbus;
-};
-
-static const struct usbmisc_ops *usbmisc_ops;
-
-/* Common functions shared by usbmisc drivers */
-
-int usbmisc_set_ops(const struct usbmisc_ops *ops)
-{
-	if (usbmisc_ops)
-		return -EBUSY;
-
-	usbmisc_ops = ops;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(usbmisc_set_ops);
-
-void usbmisc_unset_ops(const struct usbmisc_ops *ops)
-{
-	usbmisc_ops = NULL;
-}
-EXPORT_SYMBOL_GPL(usbmisc_unset_ops);
-
-int usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev)
-{
-	struct device_node *np = dev->of_node;
-	struct of_phandle_args args;
-	int ret;
-
-	usbdev->dev = dev;
-
-	ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells",
-					0, &args);
-	if (ret) {
-		dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n",
-			ret);
-		memset(usbdev, 0, sizeof(*usbdev));
-		return ret;
-	}
-	usbdev->index = args.args[0];
-	of_node_put(args.np);
-
-	if (of_find_property(np, "disable-over-current", NULL))
-		usbdev->disable_oc = 1;
-
-	if (of_find_property(np, "external-vbus-divider", NULL))
-		usbdev->evdo = 1;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(usbmisc_get_init_data);
-
-/* End of common functions shared by usbmisc drivers*/
-
-static int ci13xxx_imx_probe(struct platform_device *pdev)
-{
-	struct ci13xxx_imx_data *data;
-	struct ci13xxx_platform_data pdata = {
-		.name		= "ci13xxx_imx",
-		.capoffset	= DEF_CAPOFFSET,
-		.flags		= CI13XXX_REQUIRE_TRANSCEIVER |
-				  CI13XXX_PULLUP_ON_VBUS |
-				  CI13XXX_DISABLE_STREAMING,
-	};
-	struct resource *res;
-	int ret;
-	struct usb_phy *phy;
-
-	if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL)
-		&& !usbmisc_ops)
-		return -EPROBE_DEFER;
-
-	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
-	if (!data) {
-		dev_err(&pdev->dev, "Failed to allocate CI13xxx-IMX data!\n");
-		return -ENOMEM;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Can't get device resources!\n");
-		return -ENOENT;
-	}
-
-	data->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(data->clk)) {
-		dev_err(&pdev->dev,
-			"Failed to get clock, err=%ld\n", PTR_ERR(data->clk));
-		return PTR_ERR(data->clk);
-	}
-
-	ret = clk_prepare_enable(data->clk);
-	if (ret) {
-		dev_err(&pdev->dev,
-			"Failed to prepare or enable clock, err=%d\n", ret);
-		return ret;
-	}
-
-	phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
-	if (!IS_ERR(phy)) {
-		ret = usb_phy_init(phy);
-		if (ret) {
-			dev_err(&pdev->dev, "unable to init phy: %d\n", ret);
-			goto err_clk;
-		}
-	} else if (PTR_ERR(phy) == -EPROBE_DEFER) {
-		ret = -EPROBE_DEFER;
-		goto err_clk;
-	}
-
-	/* we only support host now, so enable vbus here */
-	data->reg_vbus = devm_regulator_get(&pdev->dev, "vbus");
-	if (!IS_ERR(data->reg_vbus)) {
-		ret = regulator_enable(data->reg_vbus);
-		if (ret) {
-			dev_err(&pdev->dev,
-				"Failed to enable vbus regulator, err=%d\n",
-				ret);
-			goto err_clk;
-		}
-	} else {
-		data->reg_vbus = NULL;
-	}
-
-	pdata.phy = data->phy;
-
-	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);
-		if (ret) {
-			dev_err(&pdev->dev,
-				"usbmisc init failed, ret=%d\n", ret);
-			goto err;
-		}
-	}
-
-	data->ci_pdev = ci13xxx_add_device(&pdev->dev,
-				pdev->resource, pdev->num_resources,
-				&pdata);
-	if (IS_ERR(data->ci_pdev)) {
-		ret = PTR_ERR(data->ci_pdev);
-		dev_err(&pdev->dev,
-			"Can't register ci_hdrc platform device, err=%d\n",
-			ret);
-		goto err;
-	}
-
-	if (usbmisc_ops && usbmisc_ops->post) {
-		ret = usbmisc_ops->post(&pdev->dev);
-		if (ret) {
-			dev_err(&pdev->dev,
-				"usbmisc post failed, ret=%d\n", ret);
-			goto disable_device;
-		}
-	}
-
-	platform_set_drvdata(pdev, data);
-
-	pm_runtime_no_callbacks(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
-
-	return 0;
-
-disable_device:
-	ci13xxx_remove_device(data->ci_pdev);
-err:
-	if (data->reg_vbus)
-		regulator_disable(data->reg_vbus);
-err_clk:
-	clk_disable_unprepare(data->clk);
-	return ret;
-}
-
-static int ci13xxx_imx_remove(struct platform_device *pdev)
-{
-	struct ci13xxx_imx_data *data = platform_get_drvdata(pdev);
-
-	pm_runtime_disable(&pdev->dev);
-	ci13xxx_remove_device(data->ci_pdev);
-
-	if (data->reg_vbus)
-		regulator_disable(data->reg_vbus);
-
-	if (data->phy) {
-		usb_phy_shutdown(data->phy);
-		module_put(data->phy->dev->driver->owner);
-	}
-
-	clk_disable_unprepare(data->clk);
-
-	return 0;
-}
-
-static const struct of_device_id ci13xxx_imx_dt_ids[] = {
-	{ .compatible = "fsl,imx27-usb", },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, ci13xxx_imx_dt_ids);
-
-static struct platform_driver ci13xxx_imx_driver = {
-	.probe = ci13xxx_imx_probe,
-	.remove = ci13xxx_imx_remove,
-	.driver = {
-		.name = "imx_usb",
-		.owner = THIS_MODULE,
-		.of_match_table = ci13xxx_imx_dt_ids,
-	 },
-};
-
-module_platform_driver(ci13xxx_imx_driver);
-
-MODULE_ALIAS("platform:imx-usb");
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CI13xxx i.MX USB binding");
-MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
-MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>");
diff --git a/drivers/usb/chipidea/ci13xxx_imx.h b/drivers/usb/chipidea/ci13xxx_imx.h
deleted file mode 100644
index 550bfa457620..000000000000
--- a/drivers/usb/chipidea/ci13xxx_imx.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright 2012 Freescale Semiconductor, Inc.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-/* Used to set SoC specific callbacks */
-struct usbmisc_ops {
-	/* It's called once when probe a usb device */
-	int (*init)(struct device *dev);
-	/* It's called once after adding a usb device */
-	int (*post)(struct device *dev);
-};
-
-struct usbmisc_usb_device {
-	struct device *dev; /* usb controller device */
-	int index;
-
-	unsigned int disable_oc:1; /* over current detect disabled */
-	unsigned int evdo:1; /* set external vbus divider option */
-};
-
-int usbmisc_set_ops(const struct usbmisc_ops *ops);
-void usbmisc_unset_ops(const struct usbmisc_ops *ops);
-int
-usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev);
diff --git a/drivers/usb/chipidea/ci13xxx_msm.c b/drivers/usb/chipidea/ci13xxx_msm.c
deleted file mode 100644
index 7d16681fd3d2..000000000000
--- a/drivers/usb/chipidea/ci13xxx_msm.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/* 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.
- */
-
-#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 <linux/usb/gadget.h>
-#include <linux/usb/chipidea.h>
-
-#include "ci.h"
-
-#define MSM_USB_BASE	(ci->hw_bank.abs)
-
-static void ci13xxx_msm_notify_event(struct ci13xxx *ci, unsigned event)
-{
-	struct device *dev = ci->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 = usb_phy_io_read(ci->transceiver, ULPI_FUNC_CTRL);
-		val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
-		val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
-		usb_phy_io_write(ci->transceiver, val, ULPI_FUNC_CTRL);
-		break;
-	default:
-		dev_dbg(dev, "unknown ci13xxx event\n");
-		break;
-	}
-}
-
-static struct ci13xxx_platform_data ci13xxx_msm_platdata = {
-	.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 platform_device *plat_ci;
-
-	dev_dbg(&pdev->dev, "ci13xxx_msm_probe\n");
-
-	plat_ci = ci13xxx_add_device(&pdev->dev,
-				pdev->resource, pdev->num_resources,
-				&ci13xxx_msm_platdata);
-	if (IS_ERR(plat_ci)) {
-		dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
-		return PTR_ERR(plat_ci);
-	}
-
-	platform_set_drvdata(pdev, plat_ci);
-
-	pm_runtime_no_callbacks(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
-
-	return 0;
-}
-
-static int ci13xxx_msm_remove(struct platform_device *pdev)
-{
-	struct platform_device *plat_ci = platform_get_drvdata(pdev);
-
-	pm_runtime_disable(&pdev->dev);
-	ci13xxx_remove_device(plat_ci);
-
-	return 0;
-}
-
-static struct platform_driver ci13xxx_msm_driver = {
-	.probe = ci13xxx_msm_probe,
-	.remove = ci13xxx_msm_remove,
-	.driver = { .name = "msm_hsusb", },
-};
-
-module_platform_driver(ci13xxx_msm_driver);
-
-MODULE_ALIAS("platform:msm_hsusb");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c
deleted file mode 100644
index 7cf549561b07..000000000000
--- a/drivers/usb/chipidea/ci13xxx_pci.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * 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/platform_device.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/usb/gadget.h>
-#include <linux/usb/chipidea.h>
-
-/* driver name */
-#define UDC_DRIVER_NAME   "ci13xxx_pci"
-
-/******************************************************************************
- * PCI block
- *****************************************************************************/
-static struct ci13xxx_platform_data pci_platdata = {
-	.name		= UDC_DRIVER_NAME,
-	.capoffset	= DEF_CAPOFFSET,
-};
-
-static struct ci13xxx_platform_data langwell_pci_platdata = {
-	.name		= UDC_DRIVER_NAME,
-	.capoffset	= 0,
-};
-
-static struct ci13xxx_platform_data penwell_pci_platdata = {
-	.name		= UDC_DRIVER_NAME,
-	.capoffset	= 0,
-	.power_budget	= 200,
-};
-
-/**
- * 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 ci13xxx_pci_probe(struct pci_dev *pdev,
-				       const struct pci_device_id *id)
-{
-	struct ci13xxx_platform_data *platdata = (void *)id->driver_data;
-	struct platform_device *plat_ci;
-	struct resource res[3];
-	int retval = 0, nres = 2;
-
-	if (!platdata) {
-		dev_err(&pdev->dev, "device doesn't provide driver data\n");
-		return -ENODEV;
-	}
-
-	retval = pcim_enable_device(pdev);
-	if (retval)
-		return retval;
-
-	if (!pdev->irq) {
-		dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
-		return -ENODEV;
-	}
-
-	pci_set_master(pdev);
-	pci_try_set_mwi(pdev);
-
-	memset(res, 0, sizeof(res));
-	res[0].start	= pci_resource_start(pdev, 0);
-	res[0].end	= pci_resource_end(pdev, 0);
-	res[0].flags	= IORESOURCE_MEM;
-	res[1].start	= pdev->irq;
-	res[1].flags	= IORESOURCE_IRQ;
-
-	plat_ci = ci13xxx_add_device(&pdev->dev, res, nres, platdata);
-	if (IS_ERR(plat_ci)) {
-		dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
-		return PTR_ERR(plat_ci);
-	}
-
-	pci_set_drvdata(pdev, plat_ci);
-
-	return 0;
-}
-
-/**
- * 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 ci13xxx_pci_remove(struct pci_dev *pdev)
-{
-	struct platform_device *plat_ci = pci_get_drvdata(pdev);
-
-	ci13xxx_remove_device(plat_ci);
-}
-
-/**
- * PCI device table
- * PCI device structure
- *
- * Check "pci.h" for details
- */
-static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
-	{
-		PCI_DEVICE(0x153F, 0x1004),
-		.driver_data = (kernel_ulong_t)&pci_platdata,
-	},
-	{
-		PCI_DEVICE(0x153F, 0x1006),
-		.driver_data = (kernel_ulong_t)&pci_platdata,
-	},
-	{
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
-		.driver_data = (kernel_ulong_t)&langwell_pci_platdata,
-	},
-	{
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
-		.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
-	},
-	{ 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       =	ci13xxx_pci_remove,
-};
-
-module_pci_driver(ci13xxx_pci_driver);
-
-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/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
new file mode 100644
index 000000000000..37fdae5106ae
--- /dev/null
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -0,0 +1,254 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Marek Vasut <marex@denx.de>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/dma-mapping.h>
+#include <linux/usb/chipidea.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include "ci.h"
+#include "ci_hdrc_imx.h"
+
+#define pdev_to_phy(pdev) \
+	((struct usb_phy *)platform_get_drvdata(pdev))
+
+struct ci_hdrc_imx_data {
+	struct usb_phy *phy;
+	struct platform_device *ci_pdev;
+	struct clk *clk;
+	struct regulator *reg_vbus;
+};
+
+static const struct usbmisc_ops *usbmisc_ops;
+
+/* Common functions shared by usbmisc drivers */
+
+int usbmisc_set_ops(const struct usbmisc_ops *ops)
+{
+	if (usbmisc_ops)
+		return -EBUSY;
+
+	usbmisc_ops = ops;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usbmisc_set_ops);
+
+void usbmisc_unset_ops(const struct usbmisc_ops *ops)
+{
+	usbmisc_ops = NULL;
+}
+EXPORT_SYMBOL_GPL(usbmisc_unset_ops);
+
+int usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev)
+{
+	struct device_node *np = dev->of_node;
+	struct of_phandle_args args;
+	int ret;
+
+	usbdev->dev = dev;
+
+	ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells",
+					0, &args);
+	if (ret) {
+		dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n",
+			ret);
+		memset(usbdev, 0, sizeof(*usbdev));
+		return ret;
+	}
+	usbdev->index = args.args[0];
+	of_node_put(args.np);
+
+	if (of_find_property(np, "disable-over-current", NULL))
+		usbdev->disable_oc = 1;
+
+	if (of_find_property(np, "external-vbus-divider", NULL))
+		usbdev->evdo = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usbmisc_get_init_data);
+
+/* End of common functions shared by usbmisc drivers*/
+
+static int ci_hdrc_imx_probe(struct platform_device *pdev)
+{
+	struct ci_hdrc_imx_data *data;
+	struct ci_hdrc_platform_data pdata = {
+		.name		= "ci_hdrc_imx",
+		.capoffset	= DEF_CAPOFFSET,
+		.flags		= CI_HDRC_REQUIRE_TRANSCEIVER |
+				  CI_HDRC_PULLUP_ON_VBUS |
+				  CI_HDRC_DISABLE_STREAMING,
+	};
+	struct resource *res;
+	int ret;
+	struct usb_phy *phy;
+
+	if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL)
+		&& !usbmisc_ops)
+		return -EPROBE_DEFER;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		dev_err(&pdev->dev, "Failed to allocate ci_hdrc-imx data!\n");
+		return -ENOMEM;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "Can't get device resources!\n");
+		return -ENOENT;
+	}
+
+	data->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(data->clk)) {
+		dev_err(&pdev->dev,
+			"Failed to get clock, err=%ld\n", PTR_ERR(data->clk));
+		return PTR_ERR(data->clk);
+	}
+
+	ret = clk_prepare_enable(data->clk);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Failed to prepare or enable clock, err=%d\n", ret);
+		return ret;
+	}
+
+	phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
+	if (!IS_ERR(phy)) {
+		ret = usb_phy_init(phy);
+		if (ret) {
+			dev_err(&pdev->dev, "unable to init phy: %d\n", ret);
+			goto err_clk;
+		}
+	} else if (PTR_ERR(phy) == -EPROBE_DEFER) {
+		ret = -EPROBE_DEFER;
+		goto err_clk;
+	}
+
+	/* we only support host now, so enable vbus here */
+	data->reg_vbus = devm_regulator_get(&pdev->dev, "vbus");
+	if (!IS_ERR(data->reg_vbus)) {
+		ret = regulator_enable(data->reg_vbus);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"Failed to enable vbus regulator, err=%d\n",
+				ret);
+			goto err_clk;
+		}
+	} else {
+		data->reg_vbus = NULL;
+	}
+
+	pdata.phy = data->phy;
+
+	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);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"usbmisc init failed, ret=%d\n", ret);
+			goto err;
+		}
+	}
+
+	data->ci_pdev = ci_hdrc_add_device(&pdev->dev,
+				pdev->resource, pdev->num_resources,
+				&pdata);
+	if (IS_ERR(data->ci_pdev)) {
+		ret = PTR_ERR(data->ci_pdev);
+		dev_err(&pdev->dev,
+			"Can't register ci_hdrc platform device, err=%d\n",
+			ret);
+		goto err;
+	}
+
+	if (usbmisc_ops && usbmisc_ops->post) {
+		ret = usbmisc_ops->post(&pdev->dev);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"usbmisc post failed, ret=%d\n", ret);
+			goto disable_device;
+		}
+	}
+
+	platform_set_drvdata(pdev, data);
+
+	pm_runtime_no_callbacks(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+disable_device:
+	ci_hdrc_remove_device(data->ci_pdev);
+err:
+	if (data->reg_vbus)
+		regulator_disable(data->reg_vbus);
+err_clk:
+	clk_disable_unprepare(data->clk);
+	return ret;
+}
+
+static int ci_hdrc_imx_remove(struct platform_device *pdev)
+{
+	struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	ci_hdrc_remove_device(data->ci_pdev);
+
+	if (data->reg_vbus)
+		regulator_disable(data->reg_vbus);
+
+	if (data->phy) {
+		usb_phy_shutdown(data->phy);
+		module_put(data->phy->dev->driver->owner);
+	}
+
+	clk_disable_unprepare(data->clk);
+
+	return 0;
+}
+
+static const struct of_device_id ci_hdrc_imx_dt_ids[] = {
+	{ .compatible = "fsl,imx27-usb", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids);
+
+static struct platform_driver ci_hdrc_imx_driver = {
+	.probe = ci_hdrc_imx_probe,
+	.remove = ci_hdrc_imx_remove,
+	.driver = {
+		.name = "imx_usb",
+		.owner = THIS_MODULE,
+		.of_match_table = ci_hdrc_imx_dt_ids,
+	 },
+};
+
+module_platform_driver(ci_hdrc_imx_driver);
+
+MODULE_ALIAS("platform:imx-usb");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("CI HDRC i.MX USB binding");
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
+MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>");
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h
new file mode 100644
index 000000000000..550bfa457620
--- /dev/null
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/* Used to set SoC specific callbacks */
+struct usbmisc_ops {
+	/* It's called once when probe a usb device */
+	int (*init)(struct device *dev);
+	/* It's called once after adding a usb device */
+	int (*post)(struct device *dev);
+};
+
+struct usbmisc_usb_device {
+	struct device *dev; /* usb controller device */
+	int index;
+
+	unsigned int disable_oc:1; /* over current detect disabled */
+	unsigned int evdo:1; /* set external vbus divider option */
+};
+
+int usbmisc_set_ops(const struct usbmisc_ops *ops);
+void usbmisc_unset_ops(const struct usbmisc_ops *ops);
+int
+usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev);
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
new file mode 100644
index 000000000000..fb657ef50a9c
--- /dev/null
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -0,0 +1,100 @@
+/* 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.
+ */
+
+#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 <linux/usb/gadget.h>
+#include <linux/usb/chipidea.h>
+
+#include "ci.h"
+
+#define MSM_USB_BASE	(ci->hw_bank.abs)
+
+static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
+{
+	struct device *dev = ci->gadget.dev.parent;
+	int val;
+
+	switch (event) {
+	case CI_HDRC_CONTROLLER_RESET_EVENT:
+		dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n");
+		writel(0, USB_AHBBURST);
+		writel(0, USB_AHBMODE);
+		break;
+	case CI_HDRC_CONTROLLER_STOPPED_EVENT:
+		dev_dbg(dev, "CI_HDRC_CONTROLLER_STOPPED_EVENT received\n");
+		/*
+		 * Put the transceiver in non-driving mode. Otherwise host
+		 * may not detect soft-disconnection.
+		 */
+		val = usb_phy_io_read(ci->transceiver, ULPI_FUNC_CTRL);
+		val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
+		val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
+		usb_phy_io_write(ci->transceiver, val, ULPI_FUNC_CTRL);
+		break;
+	default:
+		dev_dbg(dev, "unknown ci_hdrc event\n");
+		break;
+	}
+}
+
+static struct ci_hdrc_platform_data ci_hdrc_msm_platdata = {
+	.name			= "ci_hdrc_msm",
+	.flags			= CI_HDRC_REGS_SHARED |
+				  CI_HDRC_REQUIRE_TRANSCEIVER |
+				  CI_HDRC_PULLUP_ON_VBUS |
+				  CI_HDRC_DISABLE_STREAMING,
+
+	.notify_event		= ci_hdrc_msm_notify_event,
+};
+
+static int ci_hdrc_msm_probe(struct platform_device *pdev)
+{
+	struct platform_device *plat_ci;
+
+	dev_dbg(&pdev->dev, "ci_hdrc_msm_probe\n");
+
+	plat_ci = ci_hdrc_add_device(&pdev->dev,
+				pdev->resource, pdev->num_resources,
+				&ci_hdrc_msm_platdata);
+	if (IS_ERR(plat_ci)) {
+		dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n");
+		return PTR_ERR(plat_ci);
+	}
+
+	platform_set_drvdata(pdev, plat_ci);
+
+	pm_runtime_no_callbacks(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+}
+
+static int ci_hdrc_msm_remove(struct platform_device *pdev)
+{
+	struct platform_device *plat_ci = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	ci_hdrc_remove_device(plat_ci);
+
+	return 0;
+}
+
+static struct platform_driver ci_hdrc_msm_driver = {
+	.probe = ci_hdrc_msm_probe,
+	.remove = ci_hdrc_msm_remove,
+	.driver = { .name = "msm_hsusb", },
+};
+
+module_platform_driver(ci_hdrc_msm_driver);
+
+MODULE_ALIAS("platform:msm_hsusb");
+MODULE_ALIAS("platform:ci13xxx_msm");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/chipidea/ci_hdrc_pci.c b/drivers/usb/chipidea/ci_hdrc_pci.c
new file mode 100644
index 000000000000..042320a6c6c7
--- /dev/null
+++ b/drivers/usb/chipidea/ci_hdrc_pci.c
@@ -0,0 +1,149 @@
+/*
+ * ci_hdrc_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/platform_device.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/chipidea.h>
+
+/* driver name */
+#define UDC_DRIVER_NAME   "ci_hdrc_pci"
+
+/******************************************************************************
+ * PCI block
+ *****************************************************************************/
+static struct ci_hdrc_platform_data pci_platdata = {
+	.name		= UDC_DRIVER_NAME,
+	.capoffset	= DEF_CAPOFFSET,
+};
+
+static struct ci_hdrc_platform_data langwell_pci_platdata = {
+	.name		= UDC_DRIVER_NAME,
+	.capoffset	= 0,
+};
+
+static struct ci_hdrc_platform_data penwell_pci_platdata = {
+	.name		= UDC_DRIVER_NAME,
+	.capoffset	= 0,
+	.power_budget	= 200,
+};
+
+/**
+ * ci_hdrc_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 ci_hdrc_pci_probe(struct pci_dev *pdev,
+				       const struct pci_device_id *id)
+{
+	struct ci_hdrc_platform_data *platdata = (void *)id->driver_data;
+	struct platform_device *plat_ci;
+	struct resource res[3];
+	int retval = 0, nres = 2;
+
+	if (!platdata) {
+		dev_err(&pdev->dev, "device doesn't provide driver data\n");
+		return -ENODEV;
+	}
+
+	retval = pcim_enable_device(pdev);
+	if (retval)
+		return retval;
+
+	if (!pdev->irq) {
+		dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
+		return -ENODEV;
+	}
+
+	pci_set_master(pdev);
+	pci_try_set_mwi(pdev);
+
+	memset(res, 0, sizeof(res));
+	res[0].start	= pci_resource_start(pdev, 0);
+	res[0].end	= pci_resource_end(pdev, 0);
+	res[0].flags	= IORESOURCE_MEM;
+	res[1].start	= pdev->irq;
+	res[1].flags	= IORESOURCE_IRQ;
+
+	plat_ci = ci_hdrc_add_device(&pdev->dev, res, nres, platdata);
+	if (IS_ERR(plat_ci)) {
+		dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n");
+		return PTR_ERR(plat_ci);
+	}
+
+	pci_set_drvdata(pdev, plat_ci);
+
+	return 0;
+}
+
+/**
+ * ci_hdrc_pci_remove: PCI remove
+ * @pdev: USB Device Controller being removed
+ *
+ * Reverses the effect of ci_hdrc_pci_probe(),
+ * first invoking the udc_remove() and then releases
+ * all PCI resources allocated for this USB device controller
+ */
+static void ci_hdrc_pci_remove(struct pci_dev *pdev)
+{
+	struct platform_device *plat_ci = pci_get_drvdata(pdev);
+
+	ci_hdrc_remove_device(plat_ci);
+}
+
+/**
+ * PCI device table
+ * PCI device structure
+ *
+ * Check "pci.h" for details
+ */
+static DEFINE_PCI_DEVICE_TABLE(ci_hdrc_pci_id_table) = {
+	{
+		PCI_DEVICE(0x153F, 0x1004),
+		.driver_data = (kernel_ulong_t)&pci_platdata,
+	},
+	{
+		PCI_DEVICE(0x153F, 0x1006),
+		.driver_data = (kernel_ulong_t)&pci_platdata,
+	},
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
+		.driver_data = (kernel_ulong_t)&langwell_pci_platdata,
+	},
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
+		.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
+	},
+	{ 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, ci_hdrc_pci_id_table);
+
+static struct pci_driver ci_hdrc_pci_driver = {
+	.name         =	UDC_DRIVER_NAME,
+	.id_table     =	ci_hdrc_pci_id_table,
+	.probe        =	ci_hdrc_pci_probe,
+	.remove       =	ci_hdrc_pci_remove,
+};
+
+module_pci_driver(ci_hdrc_pci_driver);
+
+MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
+MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("June 2008");
+MODULE_ALIAS("platform:ci13xxx_pci");
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 66c6c7157bb9..a5df24c578fc 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -117,7 +117,7 @@ static uintptr_t ci_regs_lpm[] = {
 	[OP_ENDPTCTRL]		= 0x0ECUL,
 };
 
-static int hw_alloc_regmap(struct ci13xxx *ci, bool is_lpm)
+static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm)
 {
 	int i;
 
@@ -149,7 +149,7 @@ static int hw_alloc_regmap(struct ci13xxx *ci, bool is_lpm)
  *
  * This function returns an error code
  */
-int hw_port_test_set(struct ci13xxx *ci, u8 mode)
+int hw_port_test_set(struct ci_hdrc *ci, u8 mode)
 {
 	const u8 TEST_MODE_MAX = 7;
 
@@ -165,12 +165,12 @@ int hw_port_test_set(struct ci13xxx *ci, u8 mode)
  *
  * This function returns port test mode value
  */
-u8 hw_port_test_get(struct ci13xxx *ci)
+u8 hw_port_test_get(struct ci_hdrc *ci)
 {
 	return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> __ffs(PORTSC_PTC);
 }
 
-static int hw_device_init(struct ci13xxx *ci, void __iomem *base)
+static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
 {
 	u32 reg;
 
@@ -209,7 +209,7 @@ static int hw_device_init(struct ci13xxx *ci, void __iomem *base)
 	return 0;
 }
 
-static void hw_phymode_configure(struct ci13xxx *ci)
+static void hw_phymode_configure(struct ci_hdrc *ci)
 {
 	u32 portsc, lpm, sts;
 
@@ -254,7 +254,7 @@ static void hw_phymode_configure(struct ci13xxx *ci)
   *
  * This function returns an error code
  */
-int hw_device_reset(struct ci13xxx *ci, u32 mode)
+int hw_device_reset(struct ci_hdrc *ci, u32 mode)
 {
 	/* should flush & stop before reset */
 	hw_write(ci, OP_ENDPTFLUSH, ~0, ~0);
@@ -268,9 +268,9 @@ int hw_device_reset(struct ci13xxx *ci, u32 mode)
 
 	if (ci->platdata->notify_event)
 		ci->platdata->notify_event(ci,
-			CI13XXX_CONTROLLER_RESET_EVENT);
+			CI_HDRC_CONTROLLER_RESET_EVENT);
 
-	if (ci->platdata->flags & CI13XXX_DISABLE_STREAMING)
+	if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
 		hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
 
 	/* USBMODE should be configured step by step */
@@ -292,7 +292,7 @@ int hw_device_reset(struct ci13xxx *ci, u32 mode)
  * ci_otg_role - pick role based on ID pin state
  * @ci: the controller
  */
-static enum ci_role ci_otg_role(struct ci13xxx *ci)
+static enum ci_role ci_otg_role(struct ci_hdrc *ci)
 {
 	u32 sts = hw_read(ci, OP_OTGSC, ~0);
 	enum ci_role role = sts & OTGSC_ID
@@ -308,7 +308,7 @@ static enum ci_role ci_otg_role(struct ci13xxx *ci)
  */
 static void ci_role_work(struct work_struct *work)
 {
-	struct ci13xxx *ci = container_of(work, struct ci13xxx, work);
+	struct ci_hdrc *ci = container_of(work, struct ci_hdrc, work);
 	enum ci_role role = ci_otg_role(ci);
 
 	if (role != ci->role) {
@@ -324,7 +324,7 @@ static void ci_role_work(struct work_struct *work)
 
 static irqreturn_t ci_irq(int irq, void *data)
 {
-	struct ci13xxx *ci = data;
+	struct ci_hdrc *ci = data;
 	irqreturn_t ret = IRQ_NONE;
 	u32 otgsc = 0;
 
@@ -346,9 +346,9 @@ static irqreturn_t ci_irq(int irq, void *data)
 
 static DEFINE_IDA(ci_ida);
 
-struct platform_device *ci13xxx_add_device(struct device *dev,
+struct platform_device *ci_hdrc_add_device(struct device *dev,
 			struct resource *res, int nres,
-			struct ci13xxx_platform_data *platdata)
+			struct ci_hdrc_platform_data *platdata)
 {
 	struct platform_device *pdev;
 	int id, ret;
@@ -388,20 +388,20 @@ put_id:
 	ida_simple_remove(&ci_ida, id);
 	return ERR_PTR(ret);
 }
-EXPORT_SYMBOL_GPL(ci13xxx_add_device);
+EXPORT_SYMBOL_GPL(ci_hdrc_add_device);
 
-void ci13xxx_remove_device(struct platform_device *pdev)
+void ci_hdrc_remove_device(struct platform_device *pdev)
 {
 	int id = pdev->id;
 	platform_device_unregister(pdev);
 	ida_simple_remove(&ci_ida, id);
 }
-EXPORT_SYMBOL_GPL(ci13xxx_remove_device);
+EXPORT_SYMBOL_GPL(ci_hdrc_remove_device);
 
 static int ci_hdrc_probe(struct platform_device *pdev)
 {
 	struct device	*dev = &pdev->dev;
-	struct ci13xxx	*ci;
+	struct ci_hdrc	*ci;
 	struct resource	*res;
 	void __iomem	*base;
 	int		ret;
@@ -526,7 +526,7 @@ rm_wq:
 
 static int ci_hdrc_remove(struct platform_device *pdev)
 {
-	struct ci13xxx *ci = platform_get_drvdata(pdev);
+	struct ci_hdrc *ci = platform_get_drvdata(pdev);
 
 	dbg_remove_files(ci);
 	flush_workqueue(ci->wq);
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 33566219f3bd..96d899aee473 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -18,7 +18,7 @@
  */
 static int ci_device_show(struct seq_file *s, void *data)
 {
-	struct ci13xxx *ci = s->private;
+	struct ci_hdrc *ci = s->private;
 	struct usb_gadget *gadget = &ci->gadget;
 
 	seq_printf(s, "speed             = %d\n", gadget->speed);
@@ -58,7 +58,7 @@ static const struct file_operations ci_device_fops = {
  */
 static int ci_port_test_show(struct seq_file *s, void *data)
 {
-	struct ci13xxx *ci = s->private;
+	struct ci_hdrc *ci = s->private;
 	unsigned long flags;
 	unsigned mode;
 
@@ -78,7 +78,7 @@ static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
 				  size_t count, loff_t *ppos)
 {
 	struct seq_file *s = file->private_data;
-	struct ci13xxx *ci = s->private;
+	struct ci_hdrc *ci = s->private;
 	unsigned long flags;
 	unsigned mode;
 	char buf[32];
@@ -115,7 +115,7 @@ static const struct file_operations ci_port_test_fops = {
  */
 static int ci_qheads_show(struct seq_file *s, void *data)
 {
-	struct ci13xxx *ci = s->private;
+	struct ci_hdrc *ci = s->private;
 	unsigned long flags;
 	unsigned i, j;
 
@@ -126,12 +126,12 @@ static int ci_qheads_show(struct seq_file *s, void *data)
 
 	spin_lock_irqsave(&ci->lock, flags);
 	for (i = 0; i < ci->hw_ep_max/2; i++) {
-		struct ci13xxx_ep *hweprx = &ci->ci13xxx_ep[i];
-		struct ci13xxx_ep *hweptx =
-			&ci->ci13xxx_ep[i + ci->hw_ep_max/2];
+		struct ci_hw_ep *hweprx = &ci->ci_hw_ep[i];
+		struct ci_hw_ep *hweptx =
+			&ci->ci_hw_ep[i + ci->hw_ep_max/2];
 		seq_printf(s, "EP=%02i: RX=%08X TX=%08X\n",
 			   i, (u32)hweprx->qh.dma, (u32)hweptx->qh.dma);
-		for (j = 0; j < (sizeof(struct ci13xxx_qh)/sizeof(u32)); j++)
+		for (j = 0; j < (sizeof(struct ci_hw_qh)/sizeof(u32)); j++)
 			seq_printf(s, " %04X:    %08X    %08X\n", j,
 				   *((u32 *)hweprx->qh.ptr + j),
 				   *((u32 *)hweptx->qh.ptr + j));
@@ -158,12 +158,12 @@ static const struct file_operations ci_qheads_fops = {
  */
 static int ci_requests_show(struct seq_file *s, void *data)
 {
-	struct ci13xxx *ci = s->private;
+	struct ci_hdrc *ci = s->private;
 	unsigned long flags;
 	struct list_head   *ptr = NULL;
-	struct ci13xxx_req *req = NULL;
+	struct ci_hw_req *req = NULL;
 	struct td_node *node, *tmpnode;
-	unsigned i, j, qsize = sizeof(struct ci13xxx_td)/sizeof(u32);
+	unsigned i, j, qsize = sizeof(struct ci_hw_td)/sizeof(u32);
 
 	if (ci->role != CI_ROLE_GADGET) {
 		seq_printf(s, "not in gadget mode\n");
@@ -172,8 +172,8 @@ static int ci_requests_show(struct seq_file *s, void *data)
 
 	spin_lock_irqsave(&ci->lock, flags);
 	for (i = 0; i < ci->hw_ep_max; i++)
-		list_for_each(ptr, &ci->ci13xxx_ep[i].qh.queue) {
-			req = list_entry(ptr, struct ci13xxx_req, queue);
+		list_for_each(ptr, &ci->ci_hw_ep[i].qh.queue) {
+			req = list_entry(ptr, struct ci_hw_req, queue);
 
 			list_for_each_entry_safe(node, tmpnode, &req->tds, td) {
 				seq_printf(s, "EP=%02i: TD=%08X %s\n",
@@ -206,7 +206,7 @@ static const struct file_operations ci_requests_fops = {
 
 static int ci_role_show(struct seq_file *s, void *data)
 {
-	struct ci13xxx *ci = s->private;
+	struct ci_hdrc *ci = s->private;
 
 	seq_printf(s, "%s\n", ci_role(ci)->name);
 
@@ -217,7 +217,7 @@ static ssize_t ci_role_write(struct file *file, const char __user *ubuf,
 			     size_t count, loff_t *ppos)
 {
 	struct seq_file *s = file->private_data;
-	struct ci13xxx *ci = s->private;
+	struct ci_hdrc *ci = s->private;
 	enum ci_role role;
 	char buf[8];
 	int ret;
@@ -259,7 +259,7 @@ static const struct file_operations ci_role_fops = {
  *
  * This function returns an error code
  */
-int dbg_create_files(struct ci13xxx *ci)
+int dbg_create_files(struct ci_hdrc *ci)
 {
 	struct dentry *dent;
 
@@ -300,7 +300,7 @@ err:
  * dbg_remove_files: destroys the attribute interface
  * @ci: device
  */
-void dbg_remove_files(struct ci13xxx *ci)
+void dbg_remove_files(struct ci_hdrc *ci)
 {
 	debugfs_remove_recursive(ci->debugfs);
 }
diff --git a/drivers/usb/chipidea/debug.h b/drivers/usb/chipidea/debug.h
index 7ca6ca0a24a5..e16478c4a943 100644
--- a/drivers/usb/chipidea/debug.h
+++ b/drivers/usb/chipidea/debug.h
@@ -14,15 +14,15 @@
 #define __DRIVERS_USB_CHIPIDEA_DEBUG_H
 
 #ifdef CONFIG_USB_CHIPIDEA_DEBUG
-int dbg_create_files(struct ci13xxx *ci);
-void dbg_remove_files(struct ci13xxx *ci);
+int dbg_create_files(struct ci_hdrc *ci);
+void dbg_remove_files(struct ci_hdrc *ci);
 #else
-static inline int dbg_create_files(struct ci13xxx *ci)
+static inline int dbg_create_files(struct ci_hdrc *ci)
 {
 	return 0;
 }
 
-static inline void dbg_remove_files(struct ci13xxx *ci)
+static inline void dbg_remove_files(struct ci_hdrc *ci)
 {
 }
 #endif
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 8e9d31277c43..40d0fda4f66c 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -33,12 +33,12 @@
 
 static struct hc_driver __read_mostly ci_ehci_hc_driver;
 
-static irqreturn_t host_irq(struct ci13xxx *ci)
+static irqreturn_t host_irq(struct ci_hdrc *ci)
 {
 	return usb_hcd_irq(ci->irq, ci->hcd);
 }
 
-static int host_start(struct ci13xxx *ci)
+static int host_start(struct ci_hdrc *ci)
 {
 	struct usb_hcd *hcd;
 	struct ehci_hcd *ehci;
@@ -70,13 +70,13 @@ static int host_start(struct ci13xxx *ci)
 	else
 		ci->hcd = hcd;
 
-	if (ci->platdata->flags & CI13XXX_DISABLE_STREAMING)
+	if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
 		hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
 
 	return ret;
 }
 
-static void host_stop(struct ci13xxx *ci)
+static void host_stop(struct ci_hdrc *ci)
 {
 	struct usb_hcd *hcd = ci->hcd;
 
@@ -84,7 +84,7 @@ static void host_stop(struct ci13xxx *ci)
 	usb_put_hcd(hcd);
 }
 
-int ci_hdrc_host_init(struct ci13xxx *ci)
+int ci_hdrc_host_init(struct ci_hdrc *ci)
 {
 	struct ci_role_driver *rdrv;
 
diff --git a/drivers/usb/chipidea/host.h b/drivers/usb/chipidea/host.h
index 761fb1fd6d99..058875c15333 100644
--- a/drivers/usb/chipidea/host.h
+++ b/drivers/usb/chipidea/host.h
@@ -3,11 +3,11 @@
 
 #ifdef CONFIG_USB_CHIPIDEA_HOST
 
-int ci_hdrc_host_init(struct ci13xxx *ci);
+int ci_hdrc_host_init(struct ci_hdrc *ci);
 
 #else
 
-static inline int ci_hdrc_host_init(struct ci13xxx *ci)
+static inline int ci_hdrc_host_init(struct ci_hdrc *ci)
 {
 	return -ENXIO;
 }
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 0a9dcc9a82aa..e475fcda1d68 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -61,7 +61,7 @@ static inline int hw_ep_bit(int num, int dir)
 	return num + (dir ? 16 : 0);
 }
 
-static inline int ep_to_bit(struct ci13xxx *ci, int n)
+static inline int ep_to_bit(struct ci_hdrc *ci, int n)
 {
 	int fill = 16 - ci->hw_ep_max / 2;
 
@@ -77,7 +77,7 @@ static inline int ep_to_bit(struct ci13xxx *ci, int n)
  *
  * This function returns an error code
  */
-static int hw_device_state(struct ci13xxx *ci, u32 dma)
+static int hw_device_state(struct ci_hdrc *ci, u32 dma)
 {
 	if (dma) {
 		hw_write(ci, OP_ENDPTLISTADDR, ~0, dma);
@@ -97,7 +97,7 @@ static int hw_device_state(struct ci13xxx *ci, u32 dma)
  *
  * This function returns an error code
  */
-static int hw_ep_flush(struct ci13xxx *ci, int num, int dir)
+static int hw_ep_flush(struct ci_hdrc *ci, int num, int dir)
 {
 	int n = hw_ep_bit(num, dir);
 
@@ -118,7 +118,7 @@ static int hw_ep_flush(struct ci13xxx *ci, int num, int dir)
  *
  * This function returns an error code
  */
-static int hw_ep_disable(struct ci13xxx *ci, int num, int dir)
+static int hw_ep_disable(struct ci_hdrc *ci, int num, int dir)
 {
 	hw_ep_flush(ci, num, dir);
 	hw_write(ci, OP_ENDPTCTRL + num,
@@ -134,7 +134,7 @@ static int hw_ep_disable(struct ci13xxx *ci, int num, int dir)
  *
  * This function returns an error code
  */
-static int hw_ep_enable(struct ci13xxx *ci, int num, int dir, int type)
+static int hw_ep_enable(struct ci_hdrc *ci, int num, int dir, int type)
 {
 	u32 mask, data;
 
@@ -168,7 +168,7 @@ static int hw_ep_enable(struct ci13xxx *ci, int num, int dir, int type)
  *
  * This function returns 1 if endpoint halted
  */
-static int hw_ep_get_halt(struct ci13xxx *ci, int num, int dir)
+static int hw_ep_get_halt(struct ci_hdrc *ci, int num, int dir)
 {
 	u32 mask = dir ? ENDPTCTRL_TXS : ENDPTCTRL_RXS;
 
@@ -182,7 +182,7 @@ static int hw_ep_get_halt(struct ci13xxx *ci, int num, int dir)
  *
  * This function returns setup status
  */
-static int hw_test_and_clear_setup_status(struct ci13xxx *ci, int n)
+static int hw_test_and_clear_setup_status(struct ci_hdrc *ci, int n)
 {
 	n = ep_to_bit(ci, n);
 	return hw_test_and_clear(ci, OP_ENDPTSETUPSTAT, BIT(n));
@@ -196,7 +196,7 @@ static int hw_test_and_clear_setup_status(struct ci13xxx *ci, int n)
  *
  * This function returns an error code
  */
-static int hw_ep_prime(struct ci13xxx *ci, int num, int dir, int is_ctrl)
+static int hw_ep_prime(struct ci_hdrc *ci, int num, int dir, int is_ctrl)
 {
 	int n = hw_ep_bit(num, dir);
 
@@ -223,13 +223,13 @@ static int hw_ep_prime(struct ci13xxx *ci, int num, int dir, int is_ctrl)
  *
  * This function returns an error code
  */
-static int hw_ep_set_halt(struct ci13xxx *ci, int num, int dir, int value)
+static int hw_ep_set_halt(struct ci_hdrc *ci, int num, int dir, int value)
 {
 	if (value != 0 && value != 1)
 		return -EINVAL;
 
 	do {
-		enum ci13xxx_regs reg = OP_ENDPTCTRL + num;
+		enum ci_hw_regs reg = OP_ENDPTCTRL + num;
 		u32 mask_xs = dir ? ENDPTCTRL_TXS : ENDPTCTRL_RXS;
 		u32 mask_xr = dir ? ENDPTCTRL_TXR : ENDPTCTRL_RXR;
 
@@ -246,7 +246,7 @@ static int hw_ep_set_halt(struct ci13xxx *ci, int num, int dir, int value)
  *
  * This function returns true if high speed port
  */
-static int hw_port_is_high_speed(struct ci13xxx *ci)
+static int hw_port_is_high_speed(struct ci_hdrc *ci)
 {
 	return ci->hw_bank.lpm ? hw_read(ci, OP_DEVLC, DEVLC_PSPD) :
 		hw_read(ci, OP_PORTSC, PORTSC_HSP);
@@ -257,7 +257,7 @@ static int hw_port_is_high_speed(struct ci13xxx *ci)
  *
  * This function returns register data
  */
-static u32 hw_read_intr_enable(struct ci13xxx *ci)
+static u32 hw_read_intr_enable(struct ci_hdrc *ci)
 {
 	return hw_read(ci, OP_USBINTR, ~0);
 }
@@ -267,7 +267,7 @@ static u32 hw_read_intr_enable(struct ci13xxx *ci)
  *
  * This function returns register data
  */
-static u32 hw_read_intr_status(struct ci13xxx *ci)
+static u32 hw_read_intr_status(struct ci_hdrc *ci)
 {
 	return hw_read(ci, OP_USBSTS, ~0);
 }
@@ -279,7 +279,7 @@ static u32 hw_read_intr_status(struct ci13xxx *ci)
  *
  * This function returns complete status
  */
-static int hw_test_and_clear_complete(struct ci13xxx *ci, int n)
+static int hw_test_and_clear_complete(struct ci_hdrc *ci, int n)
 {
 	n = ep_to_bit(ci, n);
 	return hw_test_and_clear(ci, OP_ENDPTCOMPLETE, BIT(n));
@@ -291,7 +291,7 @@ static int hw_test_and_clear_complete(struct ci13xxx *ci, int n)
  *
  * This function returns active interrutps
  */
-static u32 hw_test_and_clear_intr_active(struct ci13xxx *ci)
+static u32 hw_test_and_clear_intr_active(struct ci_hdrc *ci)
 {
 	u32 reg = hw_read_intr_status(ci) & hw_read_intr_enable(ci);
 
@@ -305,7 +305,7 @@ static u32 hw_test_and_clear_intr_active(struct ci13xxx *ci)
  *
  * This function returns guard value
  */
-static int hw_test_and_clear_setup_guard(struct ci13xxx *ci)
+static int hw_test_and_clear_setup_guard(struct ci_hdrc *ci)
 {
 	return hw_test_and_write(ci, OP_USBCMD, USBCMD_SUTW, 0);
 }
@@ -316,7 +316,7 @@ static int hw_test_and_clear_setup_guard(struct ci13xxx *ci)
  *
  * This function returns guard value
  */
-static int hw_test_and_set_setup_guard(struct ci13xxx *ci)
+static int hw_test_and_set_setup_guard(struct ci_hdrc *ci)
 {
 	return hw_test_and_write(ci, OP_USBCMD, USBCMD_SUTW, USBCMD_SUTW);
 }
@@ -328,7 +328,7 @@ static int hw_test_and_set_setup_guard(struct ci13xxx *ci)
  * This function explicitly sets the address, without the "USBADRA" (advance)
  * feature, which is not supported by older versions of the controller.
  */
-static void hw_usb_set_address(struct ci13xxx *ci, u8 value)
+static void hw_usb_set_address(struct ci_hdrc *ci, u8 value)
 {
 	hw_write(ci, OP_DEVICEADDR, DEVICEADDR_USBADR,
 		 value << __ffs(DEVICEADDR_USBADR));
@@ -340,7 +340,7 @@ static void hw_usb_set_address(struct ci13xxx *ci, u8 value)
  *
  * This function returns an error code
  */
-static int hw_usb_reset(struct ci13xxx *ci)
+static int hw_usb_reset(struct ci_hdrc *ci)
 {
 	hw_usb_set_address(ci, 0);
 
@@ -369,7 +369,7 @@ static int hw_usb_reset(struct ci13xxx *ci)
  * UTIL block
  *****************************************************************************/
 
-static int add_td_to_list(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq,
+static int add_td_to_list(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq,
 			  unsigned length)
 {
 	int i;
@@ -387,7 +387,7 @@ static int add_td_to_list(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq,
 		return -ENOMEM;
 	}
 
-	memset(node->ptr, 0, sizeof(struct ci13xxx_td));
+	memset(node->ptr, 0, sizeof(struct ci_hw_td));
 	node->ptr->token = cpu_to_le32(length << __ffs(TD_TOTAL_BYTES));
 	node->ptr->token &= cpu_to_le32(TD_TOTAL_BYTES);
 	node->ptr->token |= cpu_to_le32(TD_STATUS_ACTIVE);
@@ -396,7 +396,7 @@ static int add_td_to_list(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq,
 	if (length) {
 		node->ptr->page[0] = cpu_to_le32(temp);
 		for (i = 1; i < TD_PAGE_COUNT; i++) {
-			u32 page = temp + i * CI13XXX_PAGE_SIZE;
+			u32 page = temp + i * CI_HDRC_PAGE_SIZE;
 			page &= ~TD_RESERVED_MASK;
 			node->ptr->page[i] = cpu_to_le32(page);
 		}
@@ -421,7 +421,7 @@ static int add_td_to_list(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq,
  * _usb_addr: calculates endpoint address from direction & number
  * @ep:  endpoint
  */
-static inline u8 _usb_addr(struct ci13xxx_ep *ep)
+static inline u8 _usb_addr(struct ci_hw_ep *ep)
 {
 	return ((ep->dir == TX) ? USB_ENDPOINT_DIR_MASK : 0) | ep->num;
 }
@@ -433,9 +433,9 @@ static inline u8 _usb_addr(struct ci13xxx_ep *ep)
  *
  * This function returns an error code
  */
-static int _hardware_enqueue(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq)
+static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 {
-	struct ci13xxx *ci = hwep->ci;
+	struct ci_hdrc *ci = hwep->ci;
 	int ret = 0;
 	unsigned rest = hwreq->req.length;
 	int pages = TD_PAGE_COUNT;
@@ -463,7 +463,7 @@ static int _hardware_enqueue(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq)
 
 	while (rest > 0) {
 		unsigned count = min(hwreq->req.length - hwreq->req.actual,
-					(unsigned)(pages * CI13XXX_PAGE_SIZE));
+					(unsigned)(pages * CI_HDRC_PAGE_SIZE));
 		add_td_to_list(hwep, hwreq, count);
 		rest -= count;
 	}
@@ -484,14 +484,14 @@ static int _hardware_enqueue(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq)
 
 	hwreq->req.actual = 0;
 	if (!list_empty(&hwep->qh.queue)) {
-		struct ci13xxx_req *hwreqprev;
+		struct ci_hw_req *hwreqprev;
 		int n = hw_ep_bit(hwep->num, hwep->dir);
 		int tmp_stat;
 		struct td_node *prevlastnode;
 		u32 next = firstnode->dma & TD_ADDR_MASK;
 
 		hwreqprev = list_entry(hwep->qh.queue.prev,
-				struct ci13xxx_req, queue);
+				struct ci_hw_req, queue);
 		prevlastnode = list_entry(hwreqprev->tds.prev,
 				struct td_node, td);
 
@@ -533,7 +533,7 @@ done:
  * free_pending_td: remove a pending request for the endpoint
  * @hwep: endpoint
  */
-static void free_pending_td(struct ci13xxx_ep *hwep)
+static void free_pending_td(struct ci_hw_ep *hwep)
 {
 	struct td_node *pending = hwep->pending_td;
 
@@ -549,7 +549,7 @@ static void free_pending_td(struct ci13xxx_ep *hwep)
  *
  * This function returns an error code
  */
-static int _hardware_dequeue(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq)
+static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 {
 	u32 tmptoken;
 	struct td_node *node, *tmpnode;
@@ -619,7 +619,7 @@ static int _hardware_dequeue(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq)
  * This function returns an error code
  * Caller must hold lock
  */
-static int _ep_nuke(struct ci13xxx_ep *hwep)
+static int _ep_nuke(struct ci_hw_ep *hwep)
 __releases(hwep->lock)
 __acquires(hwep->lock)
 {
@@ -632,9 +632,8 @@ __acquires(hwep->lock)
 	while (!list_empty(&hwep->qh.queue)) {
 
 		/* pop oldest request */
-		struct ci13xxx_req *hwreq = list_entry(hwep->qh.queue.next,
-						       struct ci13xxx_req,
-						       queue);
+		struct ci_hw_req *hwreq = list_entry(hwep->qh.queue.next,
+						     struct ci_hw_req, queue);
 
 		list_for_each_entry_safe(node, tmpnode, &hwreq->tds, td) {
 			dma_pool_free(hwep->td_pool, node->ptr, node->dma);
@@ -668,7 +667,7 @@ __acquires(hwep->lock)
 static int _gadget_stop_activity(struct usb_gadget *gadget)
 {
 	struct usb_ep *ep;
-	struct ci13xxx    *ci = container_of(gadget, struct ci13xxx, gadget);
+	struct ci_hdrc    *ci = container_of(gadget, struct ci_hdrc, gadget);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ci->lock, flags);
@@ -709,7 +708,7 @@ static int _gadget_stop_activity(struct usb_gadget *gadget)
  *
  * This function resets USB engine after a bus reset occurred
  */
-static void isr_reset_handler(struct ci13xxx *ci)
+static void isr_reset_handler(struct ci_hdrc *ci)
 __releases(ci->lock)
 __acquires(ci->lock)
 {
@@ -759,9 +758,9 @@ static void isr_get_status_complete(struct usb_ep *ep, struct usb_request *req)
 static int _ep_queue(struct usb_ep *ep, struct usb_request *req,
 		    gfp_t __maybe_unused gfp_flags)
 {
-	struct ci13xxx_ep  *hwep  = container_of(ep,  struct ci13xxx_ep, ep);
-	struct ci13xxx_req *hwreq = container_of(req, struct ci13xxx_req, req);
-	struct ci13xxx *ci = hwep->ci;
+	struct ci_hw_ep  *hwep  = container_of(ep,  struct ci_hw_ep, ep);
+	struct ci_hw_req *hwreq = container_of(req, struct ci_hw_req, req);
+	struct ci_hdrc *ci = hwep->ci;
 	int retval = 0;
 
 	if (ep == NULL || req == NULL || hwep->ep.desc == NULL)
@@ -812,12 +811,12 @@ static int _ep_queue(struct usb_ep *ep, struct usb_request *req,
  *
  * This function returns an error code
  */
-static int isr_get_status_response(struct ci13xxx *ci,
+static int isr_get_status_response(struct ci_hdrc *ci,
 				   struct usb_ctrlrequest *setup)
 __releases(hwep->lock)
 __acquires(hwep->lock)
 {
-	struct ci13xxx_ep *hwep = ci->ep0in;
+	struct ci_hw_ep *hwep = ci->ep0in;
 	struct usb_request *req = NULL;
 	gfp_t gfp_flags = GFP_ATOMIC;
 	int dir, num, retval;
@@ -878,7 +877,7 @@ __acquires(hwep->lock)
 static void
 isr_setup_status_complete(struct usb_ep *ep, struct usb_request *req)
 {
-	struct ci13xxx *ci = req->context;
+	struct ci_hdrc *ci = req->context;
 	unsigned long flags;
 
 	if (ci->setaddr) {
@@ -898,10 +897,10 @@ isr_setup_status_complete(struct usb_ep *ep, struct usb_request *req)
  *
  * This function returns an error code
  */
-static int isr_setup_status_phase(struct ci13xxx *ci)
+static int isr_setup_status_phase(struct ci_hdrc *ci)
 {
 	int retval;
-	struct ci13xxx_ep *hwep;
+	struct ci_hw_ep *hwep;
 
 	hwep = (ci->ep0_dir == TX) ? ci->ep0out : ci->ep0in;
 	ci->status->context = ci;
@@ -919,12 +918,12 @@ static int isr_setup_status_phase(struct ci13xxx *ci)
  * This function returns an error code
  * Caller must hold lock
  */
-static int isr_tr_complete_low(struct ci13xxx_ep *hwep)
+static int isr_tr_complete_low(struct ci_hw_ep *hwep)
 __releases(hwep->lock)
 __acquires(hwep->lock)
 {
-	struct ci13xxx_req *hwreq, *hwreqtemp;
-	struct ci13xxx_ep *hweptemp = hwep;
+	struct ci_hw_req *hwreq, *hwreqtemp;
+	struct ci_hw_ep *hweptemp = hwep;
 	int retval = 0;
 
 	list_for_each_entry_safe(hwreq, hwreqtemp, &hwep->qh.queue,
@@ -955,7 +954,7 @@ __acquires(hwep->lock)
  *
  * This function handles traffic events
  */
-static void isr_tr_complete_handler(struct ci13xxx *ci)
+static void isr_tr_complete_handler(struct ci_hdrc *ci)
 __releases(ci->lock)
 __acquires(ci->lock)
 {
@@ -963,7 +962,7 @@ __acquires(ci->lock)
 	u8 tmode = 0;
 
 	for (i = 0; i < ci->hw_ep_max; i++) {
-		struct ci13xxx_ep *hwep  = &ci->ci13xxx_ep[i];
+		struct ci_hw_ep *hwep  = &ci->ci_hw_ep[i];
 		int type, num, dir, err = -EINVAL;
 		struct usb_ctrlrequest req;
 
@@ -1023,10 +1022,10 @@ __acquires(ci->lock)
 				num &= USB_ENDPOINT_NUMBER_MASK;
 				if (dir) /* TX */
 					num += ci->hw_ep_max/2;
-				if (!ci->ci13xxx_ep[num].wedge) {
+				if (!ci->ci_hw_ep[num].wedge) {
 					spin_unlock(&ci->lock);
 					err = usb_ep_clear_halt(
-						&ci->ci13xxx_ep[num].ep);
+						&ci->ci_hw_ep[num].ep);
 					spin_lock(&ci->lock);
 					if (err)
 						break;
@@ -1076,7 +1075,7 @@ __acquires(ci->lock)
 					num += ci->hw_ep_max/2;
 
 				spin_unlock(&ci->lock);
-				err = usb_ep_set_halt(&ci->ci13xxx_ep[num].ep);
+				err = usb_ep_set_halt(&ci->ci_hw_ep[num].ep);
 				spin_lock(&ci->lock);
 				if (!err)
 					isr_setup_status_phase(ci);
@@ -1141,7 +1140,7 @@ delegate:
 static int ep_enable(struct usb_ep *ep,
 		     const struct usb_endpoint_descriptor *desc)
 {
-	struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+	struct ci_hw_ep *hwep = container_of(ep, struct ci_hw_ep, ep);
 	int retval = 0;
 	unsigned long flags;
 	u32 cap = 0;
@@ -1194,7 +1193,7 @@ static int ep_enable(struct usb_ep *ep,
  */
 static int ep_disable(struct usb_ep *ep)
 {
-	struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+	struct ci_hw_ep *hwep = container_of(ep, struct ci_hw_ep, ep);
 	int direction, retval = 0;
 	unsigned long flags;
 
@@ -1230,12 +1229,12 @@ static int ep_disable(struct usb_ep *ep)
  */
 static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 {
-	struct ci13xxx_req *hwreq = NULL;
+	struct ci_hw_req *hwreq = NULL;
 
 	if (ep == NULL)
 		return NULL;
 
-	hwreq = kzalloc(sizeof(struct ci13xxx_req), gfp_flags);
+	hwreq = kzalloc(sizeof(struct ci_hw_req), gfp_flags);
 	if (hwreq != NULL) {
 		INIT_LIST_HEAD(&hwreq->queue);
 		INIT_LIST_HEAD(&hwreq->tds);
@@ -1251,8 +1250,8 @@ static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
  */
 static void ep_free_request(struct usb_ep *ep, struct usb_request *req)
 {
-	struct ci13xxx_ep  *hwep  = container_of(ep,  struct ci13xxx_ep, ep);
-	struct ci13xxx_req *hwreq = container_of(req, struct ci13xxx_req, req);
+	struct ci_hw_ep  *hwep  = container_of(ep,  struct ci_hw_ep, ep);
+	struct ci_hw_req *hwreq = container_of(req, struct ci_hw_req, req);
 	struct td_node *node, *tmpnode;
 	unsigned long flags;
 
@@ -1285,7 +1284,7 @@ static void ep_free_request(struct usb_ep *ep, struct usb_request *req)
 static int ep_queue(struct usb_ep *ep, struct usb_request *req,
 		    gfp_t __maybe_unused gfp_flags)
 {
-	struct ci13xxx_ep  *hwep  = container_of(ep,  struct ci13xxx_ep, ep);
+	struct ci_hw_ep  *hwep  = container_of(ep,  struct ci_hw_ep, ep);
 	int retval = 0;
 	unsigned long flags;
 
@@ -1305,8 +1304,8 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req,
  */
 static int ep_dequeue(struct usb_ep *ep, struct usb_request *req)
 {
-	struct ci13xxx_ep  *hwep  = container_of(ep,  struct ci13xxx_ep, ep);
-	struct ci13xxx_req *hwreq = container_of(req, struct ci13xxx_req, req);
+	struct ci_hw_ep  *hwep  = container_of(ep,  struct ci_hw_ep, ep);
+	struct ci_hw_req *hwreq = container_of(req, struct ci_hw_req, req);
 	unsigned long flags;
 
 	if (ep == NULL || req == NULL || hwreq->req.status != -EALREADY ||
@@ -1342,7 +1341,7 @@ static int ep_dequeue(struct usb_ep *ep, struct usb_request *req)
  */
 static int ep_set_halt(struct usb_ep *ep, int value)
 {
-	struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+	struct ci_hw_ep *hwep = container_of(ep, struct ci_hw_ep, ep);
 	int direction, retval = 0;
 	unsigned long flags;
 
@@ -1386,7 +1385,7 @@ static int ep_set_halt(struct usb_ep *ep, int value)
  */
 static int ep_set_wedge(struct usb_ep *ep)
 {
-	struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+	struct ci_hw_ep *hwep = container_of(ep, struct ci_hw_ep, ep);
 	unsigned long flags;
 
 	if (ep == NULL || hwep->ep.desc == NULL)
@@ -1406,7 +1405,7 @@ static int ep_set_wedge(struct usb_ep *ep)
  */
 static void ep_fifo_flush(struct usb_ep *ep)
 {
-	struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+	struct ci_hw_ep *hwep = container_of(ep, struct ci_hw_ep, ep);
 	unsigned long flags;
 
 	if (ep == NULL) {
@@ -1440,13 +1439,13 @@ static const struct usb_ep_ops usb_ep_ops = {
 /******************************************************************************
  * GADGET block
  *****************************************************************************/
-static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active)
+static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
 {
-	struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);
+	struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
 	unsigned long flags;
 	int gadget_ready = 0;
 
-	if (!(ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS))
+	if (!(ci->platdata->flags & CI_HDRC_PULLUP_ON_VBUS))
 		return -EOPNOTSUPP;
 
 	spin_lock_irqsave(&ci->lock, flags);
@@ -1464,7 +1463,7 @@ static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active)
 			hw_device_state(ci, 0);
 			if (ci->platdata->notify_event)
 				ci->platdata->notify_event(ci,
-				CI13XXX_CONTROLLER_STOPPED_EVENT);
+				CI_HDRC_CONTROLLER_STOPPED_EVENT);
 			_gadget_stop_activity(&ci->gadget);
 			pm_runtime_put_sync(&_gadget->dev);
 		}
@@ -1473,9 +1472,9 @@ static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active)
 	return 0;
 }
 
-static int ci13xxx_wakeup(struct usb_gadget *_gadget)
+static int ci_udc_wakeup(struct usb_gadget *_gadget)
 {
-	struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);
+	struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
 	unsigned long flags;
 	int ret = 0;
 
@@ -1494,9 +1493,9 @@ out:
 	return ret;
 }
 
-static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
+static int ci_udc_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
 {
-	struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);
+	struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
 
 	if (ci->transceiver)
 		return usb_phy_set_power(ci->transceiver, ma);
@@ -1506,9 +1505,9 @@ static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
 /* Change Data+ pullup status
  * this func is used by usb_gadget_connect/disconnet
  */
-static int ci13xxx_pullup(struct usb_gadget *_gadget, int is_on)
+static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on)
 {
-	struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);
+	struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
 
 	if (is_on)
 		hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
@@ -1518,9 +1517,9 @@ static int ci13xxx_pullup(struct usb_gadget *_gadget, int is_on)
 	return 0;
 }
 
-static int ci13xxx_start(struct usb_gadget *gadget,
+static int ci_udc_start(struct usb_gadget *gadget,
 			 struct usb_gadget_driver *driver);
-static int ci13xxx_stop(struct usb_gadget *gadget,
+static int ci_udc_stop(struct usb_gadget *gadget,
 			struct usb_gadget_driver *driver);
 /**
  * Device operations part of the API to the USB controller hardware,
@@ -1528,22 +1527,22 @@ static int ci13xxx_stop(struct usb_gadget *gadget,
  * Check  "usb_gadget.h" for details
  */
 static const struct usb_gadget_ops usb_gadget_ops = {
-	.vbus_session	= ci13xxx_vbus_session,
-	.wakeup		= ci13xxx_wakeup,
-	.pullup		= ci13xxx_pullup,
-	.vbus_draw	= ci13xxx_vbus_draw,
-	.udc_start	= ci13xxx_start,
-	.udc_stop	= ci13xxx_stop,
+	.vbus_session	= ci_udc_vbus_session,
+	.wakeup		= ci_udc_wakeup,
+	.pullup		= ci_udc_pullup,
+	.vbus_draw	= ci_udc_vbus_draw,
+	.udc_start	= ci_udc_start,
+	.udc_stop	= ci_udc_stop,
 };
 
-static int init_eps(struct ci13xxx *ci)
+static int init_eps(struct ci_hdrc *ci)
 {
 	int retval = 0, i, j;
 
 	for (i = 0; i < ci->hw_ep_max/2; i++)
 		for (j = RX; j <= TX; j++) {
 			int k = i + j * ci->hw_ep_max/2;
-			struct ci13xxx_ep *hwep = &ci->ci13xxx_ep[k];
+			struct ci_hw_ep *hwep = &ci->ci_hw_ep[k];
 
 			scnprintf(hwep->name, sizeof(hwep->name), "ep%i%s", i,
 					(j == TX)  ? "in" : "out");
@@ -1589,28 +1588,28 @@ static int init_eps(struct ci13xxx *ci)
 	return retval;
 }
 
-static void destroy_eps(struct ci13xxx *ci)
+static void destroy_eps(struct ci_hdrc *ci)
 {
 	int i;
 
 	for (i = 0; i < ci->hw_ep_max; i++) {
-		struct ci13xxx_ep *hwep = &ci->ci13xxx_ep[i];
+		struct ci_hw_ep *hwep = &ci->ci_hw_ep[i];
 
 		dma_pool_free(ci->qh_pool, hwep->qh.ptr, hwep->qh.dma);
 	}
 }
 
 /**
- * ci13xxx_start: register a gadget driver
+ * ci_udc_start: register a gadget driver
  * @gadget: our gadget
  * @driver: the driver being registered
  *
  * Interrupts are enabled here.
  */
-static int ci13xxx_start(struct usb_gadget *gadget,
+static int ci_udc_start(struct usb_gadget *gadget,
 			 struct usb_gadget_driver *driver)
 {
-	struct ci13xxx *ci = container_of(gadget, struct ci13xxx, gadget);
+	struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget);
 	unsigned long flags;
 	int retval = -ENOMEM;
 
@@ -1631,9 +1630,9 @@ static int ci13xxx_start(struct usb_gadget *gadget,
 
 	ci->driver = driver;
 	pm_runtime_get_sync(&ci->gadget.dev);
-	if (ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS) {
+	if (ci->platdata->flags & CI_HDRC_PULLUP_ON_VBUS) {
 		if (ci->vbus_active) {
-			if (ci->platdata->flags & CI13XXX_REGS_SHARED)
+			if (ci->platdata->flags & CI_HDRC_REGS_SHARED)
 				hw_device_reset(ci, USBMODE_CM_DC);
 		} else {
 			pm_runtime_put_sync(&ci->gadget.dev);
@@ -1651,22 +1650,22 @@ static int ci13xxx_start(struct usb_gadget *gadget,
 }
 
 /**
- * ci13xxx_stop: unregister a gadget driver
+ * ci_udc_stop: unregister a gadget driver
  */
-static int ci13xxx_stop(struct usb_gadget *gadget,
+static int ci_udc_stop(struct usb_gadget *gadget,
 			struct usb_gadget_driver *driver)
 {
-	struct ci13xxx *ci = container_of(gadget, struct ci13xxx, gadget);
+	struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ci->lock, flags);
 
-	if (!(ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS) ||
+	if (!(ci->platdata->flags & CI_HDRC_PULLUP_ON_VBUS) ||
 			ci->vbus_active) {
 		hw_device_state(ci, 0);
 		if (ci->platdata->notify_event)
 			ci->platdata->notify_event(ci,
-			CI13XXX_CONTROLLER_STOPPED_EVENT);
+			CI_HDRC_CONTROLLER_STOPPED_EVENT);
 		ci->driver = NULL;
 		spin_unlock_irqrestore(&ci->lock, flags);
 		_gadget_stop_activity(&ci->gadget);
@@ -1688,7 +1687,7 @@ static int ci13xxx_stop(struct usb_gadget *gadget,
  * This function returns IRQ_HANDLED if the IRQ has been handled
  * It locks access to registers
  */
-static irqreturn_t udc_irq(struct ci13xxx *ci)
+static irqreturn_t udc_irq(struct ci_hdrc *ci)
 {
 	irqreturn_t retval;
 	u32 intr;
@@ -1698,7 +1697,7 @@ static irqreturn_t udc_irq(struct ci13xxx *ci)
 
 	spin_lock(&ci->lock);
 
-	if (ci->platdata->flags & CI13XXX_REGS_SHARED) {
+	if (ci->platdata->flags & CI_HDRC_REGS_SHARED) {
 		if (hw_read(ci, OP_USBMODE, USBMODE_CM) !=
 				USBMODE_CM_DC) {
 			spin_unlock(&ci->lock);
@@ -1748,7 +1747,7 @@ static irqreturn_t udc_irq(struct ci13xxx *ci)
  * udc_start: initialize gadget role
  * @ci: chipidea controller
  */
-static int udc_start(struct ci13xxx *ci)
+static int udc_start(struct ci_hdrc *ci)
 {
 	struct device *dev = ci->dev;
 	int retval = 0;
@@ -1764,15 +1763,15 @@ static int udc_start(struct ci13xxx *ci)
 	INIT_LIST_HEAD(&ci->gadget.ep_list);
 
 	/* alloc resources */
-	ci->qh_pool = dma_pool_create("ci13xxx_qh", dev,
-				       sizeof(struct ci13xxx_qh),
-				       64, CI13XXX_PAGE_SIZE);
+	ci->qh_pool = dma_pool_create("ci_hw_qh", dev,
+				       sizeof(struct ci_hw_qh),
+				       64, CI_HDRC_PAGE_SIZE);
 	if (ci->qh_pool == NULL)
 		return -ENOMEM;
 
-	ci->td_pool = dma_pool_create("ci13xxx_td", dev,
-				       sizeof(struct ci13xxx_td),
-				       64, CI13XXX_PAGE_SIZE);
+	ci->td_pool = dma_pool_create("ci_hw_td", dev,
+				       sizeof(struct ci_hw_td),
+				       64, CI_HDRC_PAGE_SIZE);
 	if (ci->td_pool == NULL) {
 		retval = -ENOMEM;
 		goto free_qh_pool;
@@ -1790,14 +1789,14 @@ static int udc_start(struct ci13xxx *ci)
 			ci->transceiver = NULL;
 	}
 
-	if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {
+	if (ci->platdata->flags & CI_HDRC_REQUIRE_TRANSCEIVER) {
 		if (ci->transceiver == NULL) {
 			retval = -ENODEV;
 			goto destroy_eps;
 		}
 	}
 
-	if (!(ci->platdata->flags & CI13XXX_REGS_SHARED)) {
+	if (!(ci->platdata->flags & CI_HDRC_REGS_SHARED)) {
 		retval = hw_device_reset(ci, USBMODE_CM_DC);
 		if (retval)
 			goto put_transceiver;
@@ -1844,7 +1843,7 @@ free_qh_pool:
  *
  * No interrupts active, the IRQ has been released
  */
-static void udc_stop(struct ci13xxx *ci)
+static void udc_stop(struct ci_hdrc *ci)
 {
 	if (ci == NULL)
 		return;
@@ -1871,7 +1870,7 @@ static void udc_stop(struct ci13xxx *ci)
  *
  * This function enables the gadget role, if the device is "device capable".
  */
-int ci_hdrc_gadget_init(struct ci13xxx *ci)
+int ci_hdrc_gadget_init(struct ci_hdrc *ci)
 {
 	struct ci_role_driver *rdrv;
 
diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h
index 0ecc0ad4f513..455ac2169226 100644
--- a/drivers/usb/chipidea/udc.h
+++ b/drivers/usb/chipidea/udc.h
@@ -20,7 +20,7 @@
 #define TX        1  /* similar to USB_DIR_IN  but can be used as an index */
 
 /* DMA layout of transfer descriptors */
-struct ci13xxx_td {
+struct ci_hw_td {
 	/* 0 */
 	u32 next;
 #define TD_TERMINATE          BIT(0)
@@ -43,7 +43,7 @@ struct ci13xxx_td {
 } __attribute__ ((packed, aligned(4)));
 
 /* DMA layout of queue heads */
-struct ci13xxx_qh {
+struct ci_hw_qh {
 	/* 0 */
 	u32 cap;
 #define QH_IOS                BIT(15)
@@ -54,7 +54,7 @@ struct ci13xxx_qh {
 	/* 1 */
 	u32 curr;
 	/* 2 - 8 */
-	struct ci13xxx_td        td;
+	struct ci_hw_td		td;
 	/* 9 */
 	u32 RESERVED;
 	struct usb_ctrlrequest   setup;
@@ -63,11 +63,11 @@ struct ci13xxx_qh {
 struct td_node {
 	struct list_head	td;
 	dma_addr_t		dma;
-	struct ci13xxx_td	*ptr;
+	struct ci_hw_td		*ptr;
 };
 
 /**
- * struct ci13xxx_req - usb request representation
+ * struct ci_hw_req - usb request representation
  * @req: request structure for gadget drivers
  * @queue: link to QH list
  * @ptr: transfer descriptor for this request
@@ -75,7 +75,7 @@ struct td_node {
  * @zptr: transfer descriptor for the zero packet
  * @zdma: dma address of the zero packet's transfer descriptor
  */
-struct ci13xxx_req {
+struct ci_hw_req {
 	struct usb_request	req;
 	struct list_head	queue;
 	struct list_head	tds;
@@ -83,11 +83,11 @@ struct ci13xxx_req {
 
 #ifdef CONFIG_USB_CHIPIDEA_UDC
 
-int ci_hdrc_gadget_init(struct ci13xxx *ci);
+int ci_hdrc_gadget_init(struct ci_hdrc *ci);
 
 #else
 
-static inline int ci_hdrc_gadget_init(struct ci13xxx *ci)
+static inline int ci_hdrc_gadget_init(struct ci_hdrc *ci)
 {
 	return -ENXIO;
 }
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index c912e7b418f4..ac5a46155200 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -16,7 +16,7 @@
 #include <linux/io.h>
 #include <linux/delay.h>
 
-#include "ci13xxx_imx.h"
+#include "ci_hdrc_imx.h"
 
 #define USB_DEV_MAX 4
 
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index b3146476be5c..25629948c842 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -7,8 +7,8 @@
 
 #include <linux/usb/otg.h>
 
-struct ci13xxx;
-struct ci13xxx_platform_data {
+struct ci_hdrc;
+struct ci_hdrc_platform_data {
 	const char	*name;
 	/* offset of the capability registers */
 	uintptr_t	 capoffset;
@@ -16,24 +16,24 @@ struct ci13xxx_platform_data {
 	struct usb_phy	*phy;
 	enum usb_phy_interface phy_mode;
 	unsigned long	 flags;
-#define CI13XXX_REGS_SHARED		BIT(0)
-#define CI13XXX_REQUIRE_TRANSCEIVER	BIT(1)
-#define CI13XXX_PULLUP_ON_VBUS		BIT(2)
-#define CI13XXX_DISABLE_STREAMING	BIT(3)
+#define CI_HDRC_REGS_SHARED		BIT(0)
+#define CI_HDRC_REQUIRE_TRANSCEIVER	BIT(1)
+#define CI_HDRC_PULLUP_ON_VBUS		BIT(2)
+#define CI_HDRC_DISABLE_STREAMING	BIT(3)
 	enum usb_dr_mode	dr_mode;
-#define CI13XXX_CONTROLLER_RESET_EVENT		0
-#define CI13XXX_CONTROLLER_STOPPED_EVENT	1
-	void	(*notify_event) (struct ci13xxx *ci, unsigned event);
+#define CI_HDRC_CONTROLLER_RESET_EVENT		0
+#define CI_HDRC_CONTROLLER_STOPPED_EVENT	1
+	void	(*notify_event) (struct ci_hdrc *ci, unsigned event);
 };
 
 /* Default offset of capability registers */
 #define DEF_CAPOFFSET		0x100
 
-/* Add ci13xxx device */
-struct platform_device *ci13xxx_add_device(struct device *dev,
+/* Add ci hdrc device */
+struct platform_device *ci_hdrc_add_device(struct device *dev,
 			struct resource *res, int nres,
-			struct ci13xxx_platform_data *platdata);
-/* Remove ci13xxx device */
-void ci13xxx_remove_device(struct platform_device *pdev);
+			struct ci_hdrc_platform_data *platdata);
+/* Remove ci hdrc device */
+void ci_hdrc_remove_device(struct platform_device *pdev);
 
 #endif
-- 
cgit v1.2.3