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path: root/drivers/usb/gadget/fsl_usb2_udc.c
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Diffstat (limited to 'drivers/usb/gadget/fsl_usb2_udc.c')
-rw-r--r--drivers/usb/gadget/fsl_usb2_udc.c28
1 files changed, 9 insertions, 19 deletions
diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c
index 3b96aac27af..d242e7eb5a5 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.c
+++ b/drivers/usb/gadget/fsl_usb2_udc.c
@@ -23,11 +23,8 @@
#include <linux/ioport.h>
#include <linux/types.h>
#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/init.h>
-#include <linux/timer.h>
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
@@ -44,11 +41,9 @@
#include <asm/byteorder.h>
#include <asm/io.h>
-#include <asm/irq.h>
#include <asm/system.h>
#include <asm/unaligned.h>
#include <asm/dma.h>
-#include <asm/cacheflush.h>
#include "fsl_usb2_udc.h"
@@ -61,8 +56,8 @@
static const char driver_name[] = "fsl-usb2-udc";
static const char driver_desc[] = DRIVER_DESC;
-volatile static struct usb_dr_device *dr_regs = NULL;
-volatile static struct usb_sys_interface *usb_sys_regs = NULL;
+static struct usb_dr_device *dr_regs;
+static struct usb_sys_interface *usb_sys_regs;
/* it is initialized in probe() */
static struct fsl_udc *udc_controller = NULL;
@@ -560,7 +555,7 @@ static int fsl_ep_disable(struct usb_ep *_ep)
/* nuke all pending requests (does flush) */
nuke(ep, -ESHUTDOWN);
- ep->desc = 0;
+ ep->desc = NULL;
ep->stopped = 1;
spin_unlock_irqrestore(&udc->lock, flags);
@@ -1565,9 +1560,6 @@ static void port_change_irq(struct fsl_udc *udc)
{
u32 speed;
- if (udc->bus_reset)
- udc->bus_reset = 0;
-
/* Bus resetting is finished */
if (!(fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET)) {
/* Get the speed */
@@ -1675,8 +1667,6 @@ static void reset_irq(struct fsl_udc *udc)
if (fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET) {
VDBG("Bus reset");
- /* Bus is reseting */
- udc->bus_reset = 1;
/* Reset all the queues, include XD, dTD, EP queue
* head and TR Queue */
reset_queues(udc);
@@ -1796,7 +1786,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
/* lock is needed but whether should use this lock or another */
spin_lock_irqsave(&udc_controller->lock, flags);
- driver->driver.bus = 0;
+ driver->driver.bus = NULL;
/* hook up the driver */
udc_controller->driver = driver;
udc_controller->gadget.dev.driver = &driver->driver;
@@ -1806,8 +1796,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
retval = driver->bind(&udc_controller->gadget);
if (retval) {
VDBG("bind to %s --> %d", driver->driver.name, retval);
- udc_controller->gadget.dev.driver = 0;
- udc_controller->driver = 0;
+ udc_controller->gadget.dev.driver = NULL;
+ udc_controller->driver = NULL;
goto out;
}
@@ -1839,7 +1829,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
return -EINVAL;
if (udc_controller->transceiver)
- (void)otg_set_peripheral(udc_controller->transceiver, 0);
+ otg_set_peripheral(udc_controller->transceiver, NULL);
/* stop DR, disable intr */
dr_controller_stop(udc_controller);
@@ -1860,8 +1850,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
/* unbind gadget and unhook driver. */
driver->unbind(&udc_controller->gadget);
- udc_controller->gadget.dev.driver = 0;
- udc_controller->driver = 0;
+ udc_controller->gadget.dev.driver = NULL;
+ udc_controller->driver = NULL;
printk("unregistered gadget driver '%s'\r\n", driver->driver.name);
return 0;