Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

34 files changed, 362 insertions, 245 deletions

diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 48ac6e781ba2..cbd8f5f80596 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -44,7 +44,7 @@ config USB_ARCH_HAS_EHCI
         default y if PPC_MPC512x
         default y if ARCH_IXP4XX
         default y if ARCH_W90X900
-        default y if ARCH_AT91SAM9G45
+        default y if ARCH_AT91
         default y if ARCH_MXC
         default y if ARCH_OMAP3
         default y if ARCH_CNS3XXX
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index cefa0c8b5b6a..d2b9af59cba9 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -428,18 +428,10 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig)
         return retval;
 }
 
-static int default_open (struct inode *inode, struct file *file)
-{
-        if (inode->i_private)
-                file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static const struct file_operations default_file_operations = {
         .read =         default_read_file,
         .write =        default_write_file,
-        .open =         default_open,
+        .open =         simple_open,
         .llseek =       default_file_lseek,
 };
 
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 26c0b75f152e..2633f7595116 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -137,7 +137,7 @@ choice
 
 config USB_AT91
         tristate "Atmel AT91 USB Device Port"
-        depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91SAM9G45
+        depends on ARCH_AT91
         help
            Many Atmel AT91 processors (such as the AT91RM2000) have a
            full speed USB Device Port with support for five configurable
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index 2204a4c68d85..77779271f487 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -54,7 +54,6 @@
 #include <linux/prefetch.h>
 
 #include <asm/byteorder.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 /* gadget stack */
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 2db5f68f7960..0c935d7c65bd 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -29,12 +29,13 @@
 #include <linux/clk.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
 
 #include <asm/byteorder.h>
 #include <mach/hardware.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/gpio.h>
 
 #include <mach/board.h>
@@ -1707,7 +1708,27 @@ static void at91udc_shutdown(struct platform_device *dev)
         spin_unlock_irqrestore(&udc->lock, flags);
 }
 
-static int __init at91udc_probe(struct platform_device *pdev)
+static void __devinit at91udc_of_init(struct at91_udc *udc,
+                                     struct device_node *np)
+{
+        struct at91_udc_data *board = &udc->board;
+        u32 val;
+        enum of_gpio_flags flags;
+
+        if (of_property_read_u32(np, "atmel,vbus-polled", &val) == 0)
+                board->vbus_polled = 1;
+
+        board->vbus_pin = of_get_named_gpio_flags(np, "atmel,vbus-gpio", 0,
+                                                  &flags);
+        board->vbus_active_low = (flags & OF_GPIO_ACTIVE_LOW) ? 1 : 0;
+
+        board->pullup_pin = of_get_named_gpio_flags(np, "atmel,pullup-gpio", 0,
+                                                  &flags);
+
+        board->pullup_active_low = (flags & OF_GPIO_ACTIVE_LOW) ? 1 : 0;
+}
+
+static int __devinit at91udc_probe(struct platform_device *pdev)
 {
         struct device   *dev = &pdev->dev;
         struct at91_udc *udc;
@@ -1742,7 +1763,11 @@ static int __init at91udc_probe(struct platform_device *pdev)
         /* init software state */
         udc = &controller;
         udc->gadget.dev.parent = dev;
-        udc->board = *(struct at91_udc_data *) dev->platform_data;
+        if (pdev->dev.of_node)
+                at91udc_of_init(udc, pdev->dev.of_node);
+        else
+                memcpy(&udc->board, dev->platform_data,
+                       sizeof(struct at91_udc_data));
         udc->pdev = pdev;
         udc->enabled = 0;
         spin_lock_init(&udc->lock);
@@ -1971,6 +1996,15 @@ static int at91udc_resume(struct platform_device *pdev)
 #define at91udc_resume  NULL
 #endif
 
+#if defined(CONFIG_OF)
+static const struct of_device_id at91_udc_dt_ids[] = {
+        { .compatible = "atmel,at91rm9200-udc" },
+        { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, at91_udc_dt_ids);
+#endif
+
 static struct platform_driver at91_udc_driver = {
         .remove         = __exit_p(at91udc_remove),
         .shutdown       = at91udc_shutdown,
@@ -1979,6 +2013,7 @@ static struct platform_driver at91_udc_driver = {
         .driver         = {
                 .name   = (char *) driver_name,
                 .owner  = THIS_MODULE,
+                .of_match_table = of_match_ptr(at91_udc_dt_ids),
         },
 };
 
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index e1cd56c5e2a8..a6dfd2164166 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -44,7 +44,6 @@
 #include <asm/byteorder.h>
 #include <linux/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 #define DRIVER_DESC     "USB Host+Gadget Emulator"
diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c
index 85a5cebe96b3..965a6293206a 100644
--- a/drivers/usb/gadget/f_phonet.c
+++ b/drivers/usb/gadget/f_phonet.c
@@ -345,7 +345,7 @@ static void pn_rx_complete(struct usb_ep *ep, struct usb_request *req)
                 }
 
                 skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
-                                skb->len <= 1, req->actual, req->actual);
+                                skb->len <= 1, req->actual, PAGE_SIZE);
                 page = NULL;
 
                 if (req->actual < req->length) { /* Last fragment */
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index b30e21fdbb1b..5f94e79cd6b9 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -43,7 +43,6 @@
 
 #include <asm/byteorder.h>
 #include <asm/io.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 #include <asm/dma.h>
 
diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index e1dfd32dc805..e151d6b87dee 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -43,7 +43,6 @@
 #include <asm/byteorder.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 
diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c
index edd52d963f14..f9cedd52cf20 100644
--- a/drivers/usb/gadget/langwell_udc.c
+++ b/drivers/usb/gadget/langwell_udc.c
@@ -32,7 +32,6 @@
 #include <linux/pm.h>
 #include <linux/io.h>
 #include <linux/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 #include "langwell_udc.h"
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index 19bbe80c2f8c..a73cf406e2a4 100644
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -34,7 +34,6 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/platform_data/mv_usb.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 #include "mv_udc.h"
diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c
index 01ae56f47174..43ac7482fa91 100644
--- a/drivers/usb/gadget/net2272.c
+++ b/drivers/usb/gadget/net2272.c
@@ -42,7 +42,6 @@
 #include <linux/usb/gadget.h>
 
 #include <asm/byteorder.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 #include "net2272.h"
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index a5ccabc37f30..ac335af154ba 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -59,7 +59,6 @@
 #include <asm/byteorder.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index b44830df593e..3b4b6dd0f95a 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -40,7 +40,6 @@
 #include <asm/byteorder.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 #include <asm/mach-types.h>
 
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index d83134b0f78a..4e4dc1f5f388 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -34,7 +34,6 @@
 #include <asm/byteorder.h>
 #include <linux/io.h>
 #include <linux/irq.h>
-#include <asm/system.h>
 #include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index 1b33634f2736..41ed69c96d8c 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -41,7 +41,6 @@
 #include <asm/byteorder.h>
 #include <asm/dma.h>
 #include <asm/gpio.h>
-#include <asm/system.h>
 #include <asm/mach-types.h>
 #include <asm/unaligned.h>
 
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index d3cdffea9c8a..73a934a170d1 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -34,7 +34,6 @@
 
 #include <asm/io.h>
 #include <asm/byteorder.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index ab9c65e2c1d5..195524cde6c3 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -37,7 +37,6 @@
 #include <asm/byteorder.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 #include <mach/irqs.h>
 
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index a5a3ef1f0096..cf14c95a6700 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -13,6 +13,8 @@
 
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 
 /* interface and function clocks */
 static struct clk *iclk, *fclk;
@@ -115,6 +117,8 @@ static const struct hc_driver ehci_atmel_hc_driver = {
         .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
 };
 
+static u64 at91_ehci_dma_mask = DMA_BIT_MASK(32);
+
 static int __devinit ehci_atmel_drv_probe(struct platform_device *pdev)
 {
         struct usb_hcd *hcd;
@@ -137,6 +141,13 @@ static int __devinit ehci_atmel_drv_probe(struct platform_device *pdev)
                 goto fail_create_hcd;
         }
 
+        /* Right now device-tree probed devices don't get dma_mask set.
+         * Since shared usb code relies on it, set it here for now.
+         * Once we have dma capability bindings this can go away.
+         */
+        if (!pdev->dev.dma_mask)
+                pdev->dev.dma_mask = &at91_ehci_dma_mask;
+
         hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
         if (!hcd) {
                 retval = -ENOMEM;
@@ -225,9 +236,21 @@ static int __devexit ehci_atmel_drv_remove(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id atmel_ehci_dt_ids[] = {
+        { .compatible = "atmel,at91sam9g45-ehci" },
+        { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, atmel_ehci_dt_ids);
+#endif
+
 static struct platform_driver ehci_atmel_driver = {
         .probe          = ehci_atmel_drv_probe,
         .remove         = __devexit_p(ehci_atmel_drv_remove),
         .shutdown       = usb_hcd_platform_shutdown,
-        .driver.name    = "atmel-ehci",
+        .driver         = {
+                .name   = "atmel-ehci",
+                .of_match_table = of_match_ptr(atmel_ehci_dt_ids),
+        },
 };
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index fd9109d7eb0e..680e1a31fb87 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -352,7 +352,6 @@ static int debug_async_open(struct inode *, struct file *);
 static int debug_periodic_open(struct inode *, struct file *);
 static int debug_registers_open(struct inode *, struct file *);
 static int debug_async_open(struct inode *, struct file *);
-static int debug_lpm_open(struct inode *, struct file *);
 static ssize_t debug_lpm_read(struct file *file, char __user *user_buf,
                                    size_t count, loff_t *ppos);
 static ssize_t debug_lpm_write(struct file *file, const char __user *buffer,
@@ -385,7 +384,7 @@ static const struct file_operations debug_registers_fops = {
 };
 static const struct file_operations debug_lpm_fops = {
         .owner          = THIS_MODULE,
-        .open           = debug_lpm_open,
+        .open           = simple_open,
         .read           = debug_lpm_read,
         .write          = debug_lpm_write,
         .release        = debug_lpm_close,
@@ -970,12 +969,6 @@ static int debug_registers_open(struct inode *inode, struct file *file)
         return file->private_data ? 0 : -ENOMEM;
 }
 
-static int debug_lpm_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static int debug_lpm_close(struct inode *inode, struct file *file)
 {
         return 0;
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index aede6374e4b6..057cdda7a489 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -45,7 +45,6 @@
 #include <asm/byteorder.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 #if defined(CONFIG_PPC_PS3)
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 924880087a74..9e65e3091c8a 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -70,7 +70,6 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/byteorder.h>
 
 #include "isp116x.h"
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 9e63cdf1ab75..2ed112d3e159 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -84,7 +84,6 @@
 #include <linux/prefetch.h>
 
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>
 
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 8e855eb0bf89..09f597ad6e00 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -14,6 +14,8 @@
 
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
 
 #include <mach/hardware.h>
 #include <asm/gpio.h>
@@ -25,6 +27,10 @@
 #error "CONFIG_ARCH_AT91 must be defined."
 #endif
 
+#define valid_port(index)       ((index) >= 0 && (index) < AT91_MAX_USBH_PORTS)
+#define at91_for_each_port(index)       \
+                for ((index) = 0; (index) < AT91_MAX_USBH_PORTS; (index)++)
+
 /* interface and function clocks; sometimes also an AHB clock */
 static struct clk *iclk, *fclk, *hclk;
 static int clocked;
@@ -238,26 +244,26 @@ ohci_at91_start (struct usb_hcd *hcd)
 
 static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int enable)
 {
-        if (port < 0 || port >= 2)
+        if (!valid_port(port))
                 return;
 
         if (!gpio_is_valid(pdata->vbus_pin[port]))
                 return;
 
         gpio_set_value(pdata->vbus_pin[port],
-                       !pdata->vbus_pin_active_low[port] ^ enable);
+                       pdata->vbus_pin_active_low[port] ^ enable);
 }
 
 static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
 {
-        if (port < 0 || port >= 2)
+        if (!valid_port(port))
                 return -EINVAL;
 
         if (!gpio_is_valid(pdata->vbus_pin[port]))
                 return -EINVAL;
 
         return gpio_get_value(pdata->vbus_pin[port]) ^
-                !pdata->vbus_pin_active_low[port];
+                pdata->vbus_pin_active_low[port];
 }
 
 /*
@@ -269,9 +275,9 @@ static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf)
         int length = ohci_hub_status_data(hcd, buf);
         int port;
 
-        for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) {
+        at91_for_each_port(port) {
                 if (pdata->overcurrent_changed[port]) {
-                        if (! length)
+                        if (!length)
                                 length = 1;
                         buf[0] |= 1 << (port + 1);
                 }
@@ -295,11 +301,17 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                 "ohci_at91_hub_control(%p,0x%04x,0x%04x,0x%04x,%p,%04x)\n",
                 hcd, typeReq, wValue, wIndex, buf, wLength);
 
+        wIndex--;
+
         switch (typeReq) {
         case SetPortFeature:
                 if (wValue == USB_PORT_FEAT_POWER) {
                         dev_dbg(hcd->self.controller, "SetPortFeat: POWER\n");
-                        ohci_at91_usb_set_power(pdata, wIndex - 1, 1);
+                        if (valid_port(wIndex)) {
+                                ohci_at91_usb_set_power(pdata, wIndex, 1);
+                                ret = 0;
+                        }
+
                         goto out;
                 }
                 break;
@@ -310,9 +322,9 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                         dev_dbg(hcd->self.controller,
                                 "ClearPortFeature: C_OVER_CURRENT\n");
 
-                        if (wIndex == 1 || wIndex == 2) {
-                                pdata->overcurrent_changed[wIndex-1] = 0;
-                                pdata->overcurrent_status[wIndex-1] = 0;
+                        if (valid_port(wIndex)) {
+                                pdata->overcurrent_changed[wIndex] = 0;
+                                pdata->overcurrent_status[wIndex] = 0;
                         }
 
                         goto out;
@@ -321,9 +333,8 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                         dev_dbg(hcd->self.controller,
                                 "ClearPortFeature: OVER_CURRENT\n");
 
-                        if (wIndex == 1 || wIndex == 2) {
-                                pdata->overcurrent_status[wIndex-1] = 0;
-                        }
+                        if (valid_port(wIndex))
+                                pdata->overcurrent_status[wIndex] = 0;
 
                         goto out;
 
@@ -331,15 +342,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                         dev_dbg(hcd->self.controller,
                                 "ClearPortFeature: POWER\n");
 
-                        if (wIndex == 1 || wIndex == 2) {
-                                ohci_at91_usb_set_power(pdata, wIndex - 1, 0);
+                        if (valid_port(wIndex)) {
+                                ohci_at91_usb_set_power(pdata, wIndex, 0);
                                 return 0;
                         }
                 }
                 break;
         }
 
-        ret = ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
+        ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength);
         if (ret)
                 goto out;
 
@@ -375,18 +386,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
                 dev_dbg(hcd->self.controller, "GetPortStatus(%d)\n", wIndex);
 
-                if (wIndex == 1 || wIndex == 2) {
-                        if (! ohci_at91_usb_get_power(pdata, wIndex-1)) {
+                if (valid_port(wIndex)) {
+                        if (!ohci_at91_usb_get_power(pdata, wIndex))
                                 *data &= ~cpu_to_le32(RH_PS_PPS);
-                        }
 
-                        if (pdata->overcurrent_changed[wIndex-1]) {
+                        if (pdata->overcurrent_changed[wIndex])
                                 *data |= cpu_to_le32(RH_PS_OCIC);
-                        }
 
-                        if (pdata->overcurrent_status[wIndex-1]) {
+                        if (pdata->overcurrent_status[wIndex])
                                 *data |= cpu_to_le32(RH_PS_POCI);
-                        }
                 }
         }
 
@@ -448,14 +456,14 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
 
         /* From the GPIO notifying the over-current situation, find
          * out the corresponding port */
-        for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) {
+        at91_for_each_port(port) {
                 if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
                         gpio = pdata->overcurrent_pin[port];
                         break;
                 }
         }
 
-        if (port == ARRAY_SIZE(pdata->overcurrent_pin)) {
+        if (port == AT91_MAX_USBH_PORTS) {
                 dev_err(& pdev->dev, "overcurrent interrupt from unknown GPIO\n");
                 return IRQ_HANDLED;
         }
@@ -465,7 +473,7 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
         /* When notified of an over-current situation, disable power
            on the corresponding port, and mark this port in
            over-current. */
-        if (! val) {
+        if (!val) {
                 ohci_at91_usb_set_power(pdata, port, 0);
                 pdata->overcurrent_status[port]  = 1;
                 pdata->overcurrent_changed[port] = 1;
@@ -477,34 +485,133 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
         return IRQ_HANDLED;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id at91_ohci_dt_ids[] = {
+        { .compatible = "atmel,at91rm9200-ohci" },
+        { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
+
+static u64 at91_ohci_dma_mask = DMA_BIT_MASK(32);
+
+static int __devinit ohci_at91_of_init(struct platform_device *pdev)
+{
+        struct device_node *np = pdev->dev.of_node;
+        int i, gpio;
+        enum of_gpio_flags flags;
+        struct at91_usbh_data   *pdata;
+        u32 ports;
+
+        if (!np)
+                return 0;
+
+        /* Right now device-tree probed devices don't get dma_mask set.
+         * Since shared usb code relies on it, set it here for now.
+         * Once we have dma capability bindings this can go away.
+         */
+        if (!pdev->dev.dma_mask)
+                pdev->dev.dma_mask = &at91_ohci_dma_mask;
+
+        pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+        if (!pdata)
+                return -ENOMEM;
+
+        if (!of_property_read_u32(np, "num-ports", &ports))
+                pdata->ports = ports;
+
+        at91_for_each_port(i) {
+                gpio = of_get_named_gpio_flags(np, "atmel,vbus-gpio", i, &flags);
+                pdata->vbus_pin[i] = gpio;
+                if (!gpio_is_valid(gpio))
+                        continue;
+                pdata->vbus_pin_active_low[i] = flags & OF_GPIO_ACTIVE_LOW;
+        }
+
+        at91_for_each_port(i)
+                pdata->overcurrent_pin[i] =
+                        of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags);
+
+        pdev->dev.platform_data = pdata;
+
+        return 0;
+}
+#else
+static int __devinit ohci_at91_of_init(struct platform_device *pdev)
+{
+        return 0;
+}
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 {
-        struct at91_usbh_data   *pdata = pdev->dev.platform_data;
+        struct at91_usbh_data   *pdata;
         int                     i;
+        int                     gpio;
+        int                     ret;
+
+        ret = ohci_at91_of_init(pdev);
+        if (ret)
+                return ret;
+
+        pdata = pdev->dev.platform_data;
 
         if (pdata) {
-                for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
+                at91_for_each_port(i) {
                         if (!gpio_is_valid(pdata->vbus_pin[i]))
                                 continue;
-                        gpio_request(pdata->vbus_pin[i], "ohci_vbus");
+                        gpio = pdata->vbus_pin[i];
+
+                        ret = gpio_request(gpio, "ohci_vbus");
+                        if (ret) {
+                                dev_err(&pdev->dev,
+                                        "can't request vbus gpio %d\n", gpio);
+                                continue;
+                        }
+                        ret = gpio_direction_output(gpio,
+                                                !pdata->vbus_pin_active_low[i]);
+                        if (ret) {
+                                dev_err(&pdev->dev,
+                                        "can't put vbus gpio %d as output %d\n",
+                                        gpio, !pdata->vbus_pin_active_low[i]);
+                                gpio_free(gpio);
+                                continue;
+                        }
+
                         ohci_at91_usb_set_power(pdata, i, 1);
                 }
 
-                for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) {
-                        int ret;
-
+                at91_for_each_port(i) {
                         if (!gpio_is_valid(pdata->overcurrent_pin[i]))
                                 continue;
-                        gpio_request(pdata->overcurrent_pin[i], "ohci_overcurrent");
+                        gpio = pdata->overcurrent_pin[i];
+
+                        ret = gpio_request(gpio, "ohci_overcurrent");
+                        if (ret) {
+                                dev_err(&pdev->dev,
+                                        "can't request overcurrent gpio %d\n",
+                                        gpio);
+                                continue;
+                        }
+
+                        ret = gpio_direction_input(gpio);
+                        if (ret) {
+                                dev_err(&pdev->dev,
+                                        "can't configure overcurrent gpio %d as input\n",
+                                        gpio);
+                                gpio_free(gpio);
+                                continue;
+                        }
 
-                        ret = request_irq(gpio_to_irq(pdata->overcurrent_pin[i]),
+                        ret = request_irq(gpio_to_irq(gpio),
                                           ohci_hcd_at91_overcurrent_irq,
                                           IRQF_SHARED, "ohci_overcurrent", pdev);
                         if (ret) {
-                                gpio_free(pdata->overcurrent_pin[i]);
-                                dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n");
+                                gpio_free(gpio);
+                                dev_err(&pdev->dev,
+                                        "can't get gpio IRQ for overcurrent\n");
                         }
                 }
         }
@@ -519,14 +626,14 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
         int                     i;
 
         if (pdata) {
-                for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
+                at91_for_each_port(i) {
                         if (!gpio_is_valid(pdata->vbus_pin[i]))
                                 continue;
                         ohci_at91_usb_set_power(pdata, i, 0);
                         gpio_free(pdata->vbus_pin[i]);
                 }
 
-                for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) {
+                at91_for_each_port(i) {
                         if (!gpio_is_valid(pdata->overcurrent_pin[i]))
                                 continue;
                         free_irq(gpio_to_irq(pdata->overcurrent_pin[i]), pdev);
@@ -596,5 +703,6 @@ static struct platform_driver ohci_hcd_at91_driver = {
         .driver         = {
                 .name   = "at91_ohci",
                 .owner  = THIS_MODULE,
+                .of_match_table = of_match_ptr(at91_ohci_dt_ids),
         },
 };
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 543e90e336b8..235171f29460 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -42,7 +42,6 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 #include <asm/byteorder.h>
 
diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c
index 4bde4f9821ba..e1004fb37bd9 100644
--- a/drivers/usb/host/ohci-sa1111.c
+++ b/drivers/usb/host/ohci-sa1111.c
@@ -16,29 +16,115 @@
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
 #include <mach/assabet.h>
-#include <mach/badge4.h>
 #include <asm/hardware/sa1111.h>
 
 #ifndef CONFIG_SA1111
 #error "This file is SA-1111 bus glue.  CONFIG_SA1111 must be defined."
 #endif
 
-extern int usb_disabled(void);
+#define USB_STATUS      0x0118
+#define USB_RESET       0x011c
+#define USB_IRQTEST     0x0120
+
+#define USB_RESET_FORCEIFRESET  (1 << 0)
+#define USB_RESET_FORCEHCRESET  (1 << 1)
+#define USB_RESET_CLKGENRESET   (1 << 2)
+#define USB_RESET_SIMSCALEDOWN  (1 << 3)
+#define USB_RESET_USBINTTEST    (1 << 4)
+#define USB_RESET_SLEEPSTBYEN   (1 << 5)
+#define USB_RESET_PWRSENSELOW   (1 << 6)
+#define USB_RESET_PWRCTRLLOW    (1 << 7)
+
+#define USB_STATUS_IRQHCIRMTWKUP  (1 <<  7)
+#define USB_STATUS_IRQHCIBUFFACC  (1 <<  8)
+#define USB_STATUS_NIRQHCIM       (1 <<  9)
+#define USB_STATUS_NHCIMFCLR      (1 << 10)
+#define USB_STATUS_USBPWRSENSE    (1 << 11)
 
-/*-------------------------------------------------------------------------*/
+#if 0
+static void dump_hci_status(struct usb_hcd *hcd, const char *label)
+{
+        unsigned long status = sa1111_readl(hcd->regs + USB_STATUS);
+
+        dbg("%s USB_STATUS = { %s%s%s%s%s}", label,
+             ((status & USB_STATUS_IRQHCIRMTWKUP) ? "IRQHCIRMTWKUP " : ""),
+             ((status & USB_STATUS_IRQHCIBUFFACC) ? "IRQHCIBUFFACC " : ""),
+             ((status & USB_STATUS_NIRQHCIM) ? "" : "IRQHCIM "),
+             ((status & USB_STATUS_NHCIMFCLR) ? "" : "HCIMFCLR "),
+             ((status & USB_STATUS_USBPWRSENSE) ? "USBPWRSENSE " : ""));
+}
+#endif
 
-static void sa1111_start_hc(struct sa1111_dev *dev)
+static int ohci_sa1111_reset(struct usb_hcd *hcd)
 {
-        unsigned int usb_rst = 0;
+        struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+        ohci_hcd_init(ohci);
+        return ohci_init(ohci);
+}
 
-        printk(KERN_DEBUG "%s: starting SA-1111 OHCI USB Controller\n",
-               __FILE__);
+static int __devinit ohci_sa1111_start(struct usb_hcd *hcd)
+{
+        struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+        int ret;
 
-#ifdef CONFIG_SA1100_BADGE4
-        if (machine_is_badge4()) {
-                badge4_set_5V(BADGE4_5V_USB, 1);
+        ret = ohci_run(ohci);
+        if (ret < 0) {
+                ohci_err(ohci, "can't start\n");
+                ohci_stop(hcd);
         }
+        return ret;
+}
+
+static const struct hc_driver ohci_sa1111_hc_driver = {
+        .description =          hcd_name,
+        .product_desc =         "SA-1111 OHCI",
+        .hcd_priv_size =        sizeof(struct ohci_hcd),
+
+        /*
+         * generic hardware linkage
+         */
+        .irq =                  ohci_irq,
+        .flags =                HCD_USB11 | HCD_MEMORY,
+
+        /*
+         * basic lifecycle operations
+         */
+        .reset =                ohci_sa1111_reset,
+        .start =                ohci_sa1111_start,
+        .stop =                 ohci_stop,
+        .shutdown =             ohci_shutdown,
+
+        /*
+         * managing i/o requests and associated device resources
+         */
+        .urb_enqueue =          ohci_urb_enqueue,
+        .urb_dequeue =          ohci_urb_dequeue,
+        .endpoint_disable =     ohci_endpoint_disable,
+
+        /*
+         * scheduling support
+         */
+        .get_frame_number =     ohci_get_frame,
+
+        /*
+         * root hub support
+         */
+        .hub_status_data =      ohci_hub_status_data,
+        .hub_control =          ohci_hub_control,
+#ifdef  CONFIG_PM
+        .bus_suspend =          ohci_bus_suspend,
+        .bus_resume =           ohci_bus_resume,
 #endif
+        .start_port_reset =     ohci_start_port_reset,
+};
+
+static int sa1111_start_hc(struct sa1111_dev *dev)
+{
+        unsigned int usb_rst = 0;
+        int ret;
+
+        dev_dbg(&dev->dev, "starting SA-1111 OHCI USB Controller\n");
 
         if (machine_is_xp860() ||
             machine_has_neponset() ||
@@ -51,220 +137,121 @@ static void sa1111_start_hc(struct sa1111_dev *dev)
          * host controller in reset.
          */
         sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
-                      dev->mapbase + SA1111_USB_RESET);
+                      dev->mapbase + USB_RESET);
 
         /*
          * Now, carefully enable the USB clock, and take
          * the USB host controller out of reset.
          */
-        sa1111_enable_device(dev);
-        udelay(11);
-        sa1111_writel(usb_rst, dev->mapbase + SA1111_USB_RESET);
+        ret = sa1111_enable_device(dev);
+        if (ret == 0) {
+                udelay(11);
+                sa1111_writel(usb_rst, dev->mapbase + USB_RESET);
+        }
+
+        return ret;
 }
 
 static void sa1111_stop_hc(struct sa1111_dev *dev)
 {
         unsigned int usb_rst;
-        printk(KERN_DEBUG "%s: stopping SA-1111 OHCI USB Controller\n",
-               __FILE__);
+
+        dev_dbg(&dev->dev, "stopping SA-1111 OHCI USB Controller\n");
 
         /*
          * Put the USB host controller into reset.
          */
-        usb_rst = sa1111_readl(dev->mapbase + SA1111_USB_RESET);
+        usb_rst = sa1111_readl(dev->mapbase + USB_RESET);
         sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
-                      dev->mapbase + SA1111_USB_RESET);
+                      dev->mapbase + USB_RESET);
 
         /*
          * Stop the USB clock.
          */
         sa1111_disable_device(dev);
-
-#ifdef CONFIG_SA1100_BADGE4
-        if (machine_is_badge4()) {
-                /* Disable power to the USB bus */
-                badge4_set_5V(BADGE4_5V_USB, 0);
-        }
-#endif
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-#if 0
-static void dump_hci_status(struct usb_hcd *hcd, const char *label)
-{
-        unsigned long status = sa1111_readl(hcd->regs + SA1111_USB_STATUS);
-
-        dbg ("%s USB_STATUS = { %s%s%s%s%s}", label,
-             ((status & USB_STATUS_IRQHCIRMTWKUP) ? "IRQHCIRMTWKUP " : ""),
-             ((status & USB_STATUS_IRQHCIBUFFACC) ? "IRQHCIBUFFACC " : ""),
-             ((status & USB_STATUS_NIRQHCIM) ? "" : "IRQHCIM "),
-             ((status & USB_STATUS_NHCIMFCLR) ? "" : "HCIMFCLR "),
-             ((status & USB_STATUS_USBPWRSENSE) ? "USBPWRSENSE " : ""));
 }
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-/* configure so an HC device and id are always provided */
-/* always called with process context; sleeping is OK */
-
 
 /**
- * usb_hcd_sa1111_probe - initialize SA-1111-based HCDs
- * Context: !in_interrupt()
+ * ohci_hcd_sa1111_probe - initialize SA-1111-based HCDs
  *
  * Allocates basic resources for this USB host controller, and
- * then invokes the start() method for the HCD associated with it
- * through the hotplug entry's driver_data.
- *
- * Store this function in the HCD's struct pci_driver as probe().
+ * then invokes the start() method for the HCD associated with it.
  */
-int usb_hcd_sa1111_probe (const struct hc_driver *driver,
-                          struct sa1111_dev *dev)
+static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev)
 {
         struct usb_hcd *hcd;
-        int retval;
+        int ret;
 
-        hcd = usb_create_hcd (driver, &dev->dev, "sa1111");
+        if (usb_disabled())
+                return -ENODEV;
+
+        hcd = usb_create_hcd(&ohci_sa1111_hc_driver, &dev->dev, "sa1111");
         if (!hcd)
                 return -ENOMEM;
+
         hcd->rsrc_start = dev->res.start;
         hcd->rsrc_len = resource_size(&dev->res);
 
         if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
                 dbg("request_mem_region failed");
-                retval = -EBUSY;
+                ret = -EBUSY;
                 goto err1;
         }
+
         hcd->regs = dev->mapbase;
 
-        sa1111_start_hc(dev);
-        ohci_hcd_init(hcd_to_ohci(hcd));
+        ret = sa1111_start_hc(dev);
+        if (ret)
+                goto err2;
 
-        retval = usb_add_hcd(hcd, dev->irq[1], 0);
-        if (retval == 0)
-                return retval;
+        ret = usb_add_hcd(hcd, dev->irq[1], 0);
+        if (ret == 0)
+                return ret;
 
         sa1111_stop_hc(dev);
+ err2:
         release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
  err1:
         usb_put_hcd(hcd);
-        return retval;
+        return ret;
 }
 
-
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
-
 /**
- * usb_hcd_sa1111_remove - shutdown processing for SA-1111-based HCDs
+ * ohci_hcd_sa1111_remove - shutdown processing for SA-1111-based HCDs
  * @dev: USB Host Controller being removed
- * Context: !in_interrupt()
- *
- * Reverses the effect of usb_hcd_sa1111_probe(), first invoking
- * the HCD's stop() method.  It is always called from a thread
- * context, normally "rmmod", "apmd", or something similar.
  *
+ * Reverses the effect of ohci_hcd_sa1111_probe(), first invoking
+ * the HCD's stop() method.
  */
-void usb_hcd_sa1111_remove (struct usb_hcd *hcd, struct sa1111_dev *dev)
+static int ohci_hcd_sa1111_remove(struct sa1111_dev *dev)
 {
+        struct usb_hcd *hcd = sa1111_get_drvdata(dev);
+
         usb_remove_hcd(hcd);
         sa1111_stop_hc(dev);
         release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
         usb_put_hcd(hcd);
-}
-
-/*-------------------------------------------------------------------------*/
 
-static int __devinit
-ohci_sa1111_start (struct usb_hcd *hcd)
-{
-        struct ohci_hcd *ohci = hcd_to_ohci (hcd);
-        int             ret;
-
-        if ((ret = ohci_init(ohci)) < 0)
-                return ret;
-
-        if ((ret = ohci_run (ohci)) < 0) {
-                err ("can't start %s", hcd->self.bus_name);
-                ohci_stop (hcd);
-                return ret;
-        }
         return 0;
 }
 
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ohci_sa1111_hc_driver = {
-        .description =          hcd_name,
-        .product_desc =         "SA-1111 OHCI",
-        .hcd_priv_size =        sizeof(struct ohci_hcd),
-
-        /*
-         * generic hardware linkage
-         */
-        .irq =                  ohci_irq,
-        .flags =                HCD_USB11 | HCD_MEMORY,
-
-        /*
-         * basic lifecycle operations
-         */
-        .start =                ohci_sa1111_start,
-        .stop =                 ohci_stop,
-
-        /*
-         * managing i/o requests and associated device resources
-         */
-        .urb_enqueue =          ohci_urb_enqueue,
-        .urb_dequeue =          ohci_urb_dequeue,
-        .endpoint_disable =     ohci_endpoint_disable,
-
-        /*
-         * scheduling support
-         */
-        .get_frame_number =     ohci_get_frame,
-
-        /*
-         * root hub support
-         */
-        .hub_status_data =      ohci_hub_status_data,
-        .hub_control =          ohci_hub_control,
-#ifdef  CONFIG_PM
-        .bus_suspend =          ohci_bus_suspend,
-        .bus_resume =           ohci_bus_resume,
-#endif
-        .start_port_reset =     ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_hcd_sa1111_drv_probe(struct sa1111_dev *dev)
-{
-        int ret;
-
-        if (usb_disabled())
-                return -ENODEV;
-
-        ret = usb_hcd_sa1111_probe(&ohci_sa1111_hc_driver, dev);
-        return ret;
-}
-
-static int ohci_hcd_sa1111_drv_remove(struct sa1111_dev *dev)
+static void ohci_hcd_sa1111_shutdown(struct sa1111_dev *dev)
 {
         struct usb_hcd *hcd = sa1111_get_drvdata(dev);
 
-        usb_hcd_sa1111_remove(hcd, dev);
-        return 0;
+        if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
+                hcd->driver->shutdown(hcd);
+                sa1111_stop_hc(dev);
+        }
 }
 
 static struct sa1111_driver ohci_hcd_sa1111_driver = {
         .drv = {
                 .name   = "sa1111-ohci",
+                .owner  = THIS_MODULE,
         },
         .devid          = SA1111_DEVID_USB,
-        .probe          = ohci_hcd_sa1111_drv_probe,
-        .remove         = ohci_hcd_sa1111_drv_remove,
+        .probe          = ohci_hcd_sa1111_probe,
+        .remove         = ohci_hcd_sa1111_remove,
+        .shutdown       = ohci_hcd_sa1111_shutdown,
 };
-
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index 015c7c62ed49..3b38030b02a8 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -40,7 +40,6 @@
 #include <linux/io.h>
 
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/unaligned.h>
 
 #include <linux/irq.h>
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 2a2cce2d2fa7..91ce1c02e617 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -51,7 +51,6 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>
 
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 16dd6a6abf00..dbbd1ba25224 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -55,7 +55,6 @@
 #include <linux/mutex.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 #include <asm/byteorder.h>
 
         /* FIXME ohci.h is ONLY for internal use by the OHCI driver.
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index e37dea87bb56..e4db350602b8 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -45,7 +45,6 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/system.h>
 
 #include "uhci-hcd.h"
 
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index 97cb45916c43..d05c7fbbb703 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -115,12 +115,12 @@ static bool ux500_configure_channel(struct dma_channel *channel,
         slave_conf.dst_addr = usb_fifo_addr;
         slave_conf.dst_addr_width = addr_width;
         slave_conf.dst_maxburst = 16;
+        slave_conf.device_fc = false;
 
         dma_chan->device->device_control(dma_chan, DMA_SLAVE_CONFIG,
                                              (unsigned long) &slave_conf);
 
-        dma_desc = dma_chan->device->
-                        device_prep_slave_sg(dma_chan, &sg, 1, direction,
+        dma_desc = dmaengine_prep_slave_sg(dma_chan, &sg, 1, direction,
                                              DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!dma_desc)
                 return false;
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 3648c82a17fe..6ec7f838d7fa 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -786,9 +786,8 @@ static void xfer_work(struct work_struct *work)
         sg_dma_address(&sg) = pkt->dma + pkt->actual;
         sg_dma_len(&sg) = pkt->trans;
 
-        desc = chan->device->device_prep_slave_sg(chan, &sg, 1, dir,
-                                                  DMA_PREP_INTERRUPT |
-                                                  DMA_CTRL_ACK);
+        desc = dmaengine_prep_slave_sg(chan, &sg, 1, dir,
+                                        DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!desc)
                 return;
 
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 7c229d304684..ff8605b4b4be 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1724,7 +1724,8 @@ static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
 
 /*
  * Module parameter to control latency timer for NDI FTDI-based USB devices.
- * If this value is not set in modprobe.conf.local its value will be set to 1ms.
+ * If this value is not set in /etc/modprobe.d/ its value will be set
+ * to 1ms.
  */
 static int ndi_latency_timer = 1;
 
diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig
index fe2d803a6347..7691c866637b 100644
--- a/drivers/usb/storage/Kconfig
+++ b/drivers/usb/storage/Kconfig
@@ -222,7 +222,7 @@ config USB_LIBUSUAL
           for usb-storage and ub drivers, and allows to switch binding
           of these devices without rebuilding modules.
 
-          Typical syntax of /etc/modprobe.conf is:
+          Typical syntax of /etc/modprobe.d/*conf is:
 
                 options libusual bias="ub"