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

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

Manually fix up trivial conflicts in USB Kconfig changes in:
	arch/arm/mach-omap2/Kconfig
	arch/sh/Kconfig
	drivers/usb/Kconfig
	drivers/usb/host/ehci-hcd.c
and annoying chip clock data conflicts in:
	arch/arm/mach-omap2/clock3xxx_data.c
	arch/arm/mach-omap2/clock44xx_data.c
This commit is contained in:
Linus Torvalds
2011-01-07 13:16:28 -08:00
parent da40d036fd 2af10844eb
commit 3e5b08cbbf
136 changed files with 15410 additions and 2020 deletions
Download Patch File Download Diff File Expand all files Collapse all files

150
drivers/usb/core/driver.c
View File

@@ -27,7 +27,6 @@
#include <linux/usb.h>
#include <linux/usb/quirks.h>
#include <linux/usb/hcd.h>
#include <linux/pm_runtime.h>
#include "usb.h"
@@ -1262,6 +1261,7 @@ static int usb_resume_both(struct usb_device *udev, pm_message_t msg)
udev->reset_resume);
}
}
usb_mark_last_busy(udev);
done:
dev_vdbg(&udev->dev, "%s: status %d\n", __func__, status);
@@ -1329,7 +1329,6 @@ int usb_resume(struct device *dev, pm_message_t msg)
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
udev->last_busy = jiffies;
do_unbind_rebind(udev, DO_REBIND);
}
}
@@ -1397,33 +1396,8 @@ void usb_autosuspend_device(struct usb_device *udev)
{
int status;
udev->last_busy = jiffies;
status = pm_runtime_put_sync(&udev->dev);
dev_vdbg(&udev->dev, "%s: cnt %d -> %d\n",
__func__, atomic_read(&udev->dev.power.usage_count),
status);
}
/**
* usb_try_autosuspend_device - attempt an autosuspend of a USB device and its interfaces
* @udev: the usb_device to autosuspend
*
* This routine should be called when a core subsystem thinks @udev may
* be ready to autosuspend.
*
* @udev's usage counter left unchanged. If it is 0 and all the interfaces
* are inactive then an autosuspend will be attempted. The attempt may
* fail or be delayed.
*
* The caller must hold @udev's device lock.
*
* This routine can run only in process context.
*/
void usb_try_autosuspend_device(struct usb_device *udev)
{
int status;
status = pm_runtime_idle(&udev->dev);
usb_mark_last_busy(udev);
status = pm_runtime_put_sync_autosuspend(&udev->dev);
dev_vdbg(&udev->dev, "%s: cnt %d -> %d\n",
__func__, atomic_read(&udev->dev.power.usage_count),
status);
@@ -1482,7 +1456,7 @@ void usb_autopm_put_interface(struct usb_interface *intf)
struct usb_device *udev = interface_to_usbdev(intf);
int status;
udev->last_busy = jiffies;
usb_mark_last_busy(udev);
atomic_dec(&intf->pm_usage_cnt);
status = pm_runtime_put_sync(&intf->dev);
dev_vdbg(&intf->dev, "%s: cnt %d -> %d\n",
@@ -1509,32 +1483,11 @@ EXPORT_SYMBOL_GPL(usb_autopm_put_interface);
void usb_autopm_put_interface_async(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
unsigned long last_busy;
int status = 0;
int status;
last_busy = udev->last_busy;
udev->last_busy = jiffies;
usb_mark_last_busy(udev);
atomic_dec(&intf->pm_usage_cnt);
pm_runtime_put_noidle(&intf->dev);
if (udev->dev.power.runtime_auto) {
/* Optimization: Don't schedule a delayed autosuspend if
* the timer is already running and the expiration time
* wouldn't change.
*
* We have to use the interface's timer. Attempts to
* schedule a suspend for the device would fail because
* the interface is still active.
*/
if (intf->dev.power.timer_expires == 0 ||
round_jiffies_up(last_busy) !=
round_jiffies_up(jiffies)) {
status = pm_schedule_suspend(&intf->dev,
jiffies_to_msecs(
round_jiffies_up_relative(
udev->autosuspend_delay)));
}
}
status = pm_runtime_put(&intf->dev);
dev_vdbg(&intf->dev, "%s: cnt %d -> %d\n",
__func__, atomic_read(&intf->dev.power.usage_count),
status);
@@ -1554,7 +1507,7 @@ void usb_autopm_put_interface_no_suspend(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
udev->last_busy = jiffies;
usb_mark_last_busy(udev);
atomic_dec(&intf->pm_usage_cnt);
pm_runtime_put_noidle(&intf->dev);
}
@@ -1612,18 +1565,9 @@ EXPORT_SYMBOL_GPL(usb_autopm_get_interface);
*/
int usb_autopm_get_interface_async(struct usb_interface *intf)
{
int status = 0;
enum rpm_status s;
/* Don't request a resume unless the interface is already suspending
* or suspended. Doing so would force a running suspend timer to be
* cancelled.
*/
pm_runtime_get_noresume(&intf->dev);
s = ACCESS_ONCE(intf->dev.power.runtime_status);
if (s == RPM_SUSPENDING || s == RPM_SUSPENDED)
status = pm_request_resume(&intf->dev);
int status;
status = pm_runtime_get(&intf->dev);
if (status < 0 && status != -EINPROGRESS)
pm_runtime_put_noidle(&intf->dev);
else
@@ -1650,7 +1594,7 @@ void usb_autopm_get_interface_no_resume(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
udev->last_busy = jiffies;
usb_mark_last_busy(udev);
atomic_inc(&intf->pm_usage_cnt);
pm_runtime_get_noresume(&intf->dev);
}
@@ -1661,7 +1605,6 @@ static int autosuspend_check(struct usb_device *udev)
{
int w, i;
struct usb_interface *intf;
unsigned long suspend_time, j;
/* Fail if autosuspend is disabled, or any interfaces are in use, or
* any interface drivers require remote wakeup but it isn't available.
@@ -1701,87 +1644,46 @@ static int autosuspend_check(struct usb_device *udev)
return -EOPNOTSUPP;
}
udev->do_remote_wakeup = w;
/* If everything is okay but the device hasn't been idle for long
* enough, queue a delayed autosuspend request.
*/
j = ACCESS_ONCE(jiffies);
suspend_time = udev->last_busy + udev->autosuspend_delay;
if (time_before(j, suspend_time)) {
pm_schedule_suspend(&udev->dev, jiffies_to_msecs(
round_jiffies_up_relative(suspend_time - j)));
return -EAGAIN;
}
return 0;
}
static int usb_runtime_suspend(struct device *dev)
{
int status = 0;
struct usb_device *udev = to_usb_device(dev);
int status;
/* A USB device can be suspended if it passes the various autosuspend
* checks. Runtime suspend for a USB device means suspending all the
* interfaces and then the device itself.
*/
if (is_usb_device(dev)) {
struct usb_device *udev = to_usb_device(dev);
if (autosuspend_check(udev) != 0)
return -EAGAIN;
if (autosuspend_check(udev) != 0)
return -EAGAIN;
status = usb_suspend_both(udev, PMSG_AUTO_SUSPEND);
/* If an interface fails the suspend, adjust the last_busy
* time so that we don't get another suspend attempt right
* away.
*/
if (status) {
udev->last_busy = jiffies +
(udev->autosuspend_delay == 0 ?
HZ/2 : 0);
}
/* Prevent the parent from suspending immediately after */
else if (udev->parent)
udev->parent->last_busy = jiffies;
}
/* Runtime suspend for a USB interface doesn't mean anything. */
status = usb_suspend_both(udev, PMSG_AUTO_SUSPEND);
return status;
}
static int usb_runtime_resume(struct device *dev)
{
struct usb_device *udev = to_usb_device(dev);
int status;
/* Runtime resume for a USB device means resuming both the device
* and all its interfaces.
*/
if (is_usb_device(dev)) {
struct usb_device *udev = to_usb_device(dev);
int status;
status = usb_resume_both(udev, PMSG_AUTO_RESUME);
udev->last_busy = jiffies;
return status;
}
/* Runtime resume for a USB interface doesn't mean anything. */
return 0;
status = usb_resume_both(udev, PMSG_AUTO_RESUME);
return status;
}
static int usb_runtime_idle(struct device *dev)
{
struct usb_device *udev = to_usb_device(dev);
/* An idle USB device can be suspended if it passes the various
* autosuspend checks. An idle interface can be suspended at
* any time.
* autosuspend checks.
*/
if (is_usb_device(dev)) {
struct usb_device *udev = to_usb_device(dev);
if (autosuspend_check(udev) != 0)
return 0;
}
pm_runtime_suspend(dev);
if (autosuspend_check(udev) == 0)
pm_runtime_autosuspend(dev);
return 0;
}

1
drivers/usb/core/hcd-pci.c
View File

@@ -19,7 +19,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>

1
drivers/usb/core/hcd.c
View File

@@ -38,7 +38,6 @@
#include <asm/unaligned.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/pm_runtime.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>

11
drivers/usb/core/hub.c
View File

@@ -24,7 +24,6 @@
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <linux/pm_runtime.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
@@ -1804,8 +1803,15 @@ int usb_new_device(struct usb_device *udev)
/* Tell the runtime-PM framework the device is active */
pm_runtime_set_active(&udev->dev);
pm_runtime_get_noresume(&udev->dev);
pm_runtime_use_autosuspend(&udev->dev);
pm_runtime_enable(&udev->dev);
/* By default, forbid autosuspend for all devices. It will be
* allowed for hubs during binding.
*/
usb_disable_autosuspend(udev);
err = usb_enumerate_device(udev); /* Read descriptors */
if (err < 0)
goto fail;
@@ -1831,6 +1837,8 @@ int usb_new_device(struct usb_device *udev)
}
(void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev);
usb_mark_last_busy(udev);
pm_runtime_put_sync_autosuspend(&udev->dev);
return err;
fail:
@@ -2221,6 +2229,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
usb_set_device_state(udev, USB_STATE_SUSPENDED);
msleep(10);
}
usb_mark_last_busy(hub->hdev);
return status;
}

1
drivers/usb/core/message.c
View File

@@ -1804,6 +1804,7 @@ free_interfaces:
INIT_WORK(&intf->reset_ws, __usb_queue_reset_device);
intf->minor = -1;
device_initialize(&intf->dev);
pm_runtime_no_callbacks(&intf->dev);
dev_set_name(&intf->dev, "%d-%s:%d.%d",
dev->bus->busnum, dev->devpath,
configuration, alt->desc.bInterfaceNumber);

15
drivers/usb/core/quirks.c
View File

@@ -117,21 +117,6 @@ void usb_detect_quirks(struct usb_device *udev)
dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
udev->quirks);
#ifdef CONFIG_USB_SUSPEND
/* By default, disable autosuspend for all devices. The hub driver
* will enable it for hubs.
*/
usb_disable_autosuspend(udev);
/* Autosuspend can also be disabled if the initial autosuspend_delay
* is negative.
*/
if (udev->autosuspend_delay < 0)
usb_autoresume_device(udev);
#endif
/* For the present, all devices default to USB-PERSIST enabled */
#if 0 /* was: #ifdef CONFIG_PM */
/* Hubs are automatically enabled for USB-PERSIST */

84
drivers/usb/core/sysfs.c
View File

@@ -233,8 +233,6 @@ static DEVICE_ATTR(urbnum, S_IRUGO, show_urbnum, NULL);
#ifdef CONFIG_PM
static const char power_group[] = "power";
static ssize_t
show_persist(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -278,7 +276,7 @@ static int add_persist_attributes(struct device *dev)
if (udev->descriptor.bDeviceClass != USB_CLASS_HUB)
rc = sysfs_add_file_to_group(&dev->kobj,
&dev_attr_persist.attr,
power_group);
power_group_name);
}
return rc;
}
@@ -287,7 +285,7 @@ static void remove_persist_attributes(struct device *dev)
{
sysfs_remove_file_from_group(&dev->kobj,
&dev_attr_persist.attr,
power_group);
power_group_name);
}
#else
@@ -336,44 +334,20 @@ static DEVICE_ATTR(active_duration, S_IRUGO, show_active_duration, NULL);
static ssize_t
show_autosuspend(struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev = to_usb_device(dev);
return sprintf(buf, "%d\n", udev->autosuspend_delay / HZ);
return sprintf(buf, "%d\n", dev->power.autosuspend_delay / 1000);
}
static ssize_t
set_autosuspend(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct usb_device *udev = to_usb_device(dev);
int value, old_delay;
int rc;
int value;
if (sscanf(buf, "%d", &value) != 1 || value >= INT_MAX/HZ ||
value <= - INT_MAX/HZ)
if (sscanf(buf, "%d", &value) != 1 || value >= INT_MAX/1000 ||
value <= -INT_MAX/1000)
return -EINVAL;
value *= HZ;
usb_lock_device(udev);
old_delay = udev->autosuspend_delay;
udev->autosuspend_delay = value;
if (old_delay < 0) { /* Autosuspend wasn't allowed */
if (value >= 0)
usb_autosuspend_device(udev);
} else { /* Autosuspend was allowed */
if (value < 0) {
rc = usb_autoresume_device(udev);
if (rc < 0) {
count = rc;
udev->autosuspend_delay = old_delay;
}
} else {
usb_try_autosuspend_device(udev);
}
}
usb_unlock_device(udev);
pm_runtime_set_autosuspend_delay(dev, value * 1000);
return count;
}
@@ -438,44 +412,30 @@ set_level(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(level, S_IRUGO | S_IWUSR, show_level, set_level);
static struct attribute *power_attrs[] = {
&dev_attr_autosuspend.attr,
&dev_attr_level.attr,
&dev_attr_connected_duration.attr,
&dev_attr_active_duration.attr,
NULL,
};
static struct attribute_group power_attr_group = {
.name = power_group_name,
.attrs = power_attrs,
};
static int add_power_attributes(struct device *dev)
{
int rc = 0;
if (is_usb_device(dev)) {
rc = sysfs_add_file_to_group(&dev->kobj,
&dev_attr_autosuspend.attr,
power_group);
if (rc == 0)
rc = sysfs_add_file_to_group(&dev->kobj,
&dev_attr_level.attr,
power_group);
if (rc == 0)
rc = sysfs_add_file_to_group(&dev->kobj,
&dev_attr_connected_duration.attr,
power_group);
if (rc == 0)
rc = sysfs_add_file_to_group(&dev->kobj,
&dev_attr_active_duration.attr,
power_group);
}
if (is_usb_device(dev))
rc = sysfs_merge_group(&dev->kobj, &power_attr_group);
return rc;
}
static void remove_power_attributes(struct device *dev)
{
sysfs_remove_file_from_group(&dev->kobj,
&dev_attr_active_duration.attr,
power_group);
sysfs_remove_file_from_group(&dev->kobj,
&dev_attr_connected_duration.attr,
power_group);
sysfs_remove_file_from_group(&dev->kobj,
&dev_attr_level.attr,
power_group);
sysfs_remove_file_from_group(&dev->kobj,
&dev_attr_autosuspend.attr,
power_group);
sysfs_unmerge_group(&dev->kobj, &power_attr_group);
}
#else

3
drivers/usb/core/usb.c
View File

@@ -445,7 +445,8 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
INIT_LIST_HEAD(&dev->filelist);
#ifdef CONFIG_PM
dev->autosuspend_delay = usb_autosuspend_delay * HZ;
pm_runtime_set_autosuspend_delay(&dev->dev,
usb_autosuspend_delay * 1000);
dev->connect_time = jiffies;
dev->active_duration = -jiffies;
#endif

2
drivers/usb/core/usb.h
View File

@@ -75,14 +75,12 @@ static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
#ifdef CONFIG_USB_SUSPEND
extern void usb_autosuspend_device(struct usb_device *udev);
extern void usb_try_autosuspend_device(struct usb_device *udev);
extern int usb_autoresume_device(struct usb_device *udev);
extern int usb_remote_wakeup(struct usb_device *dev);
#else
#define usb_autosuspend_device(udev) do {} while (0)
#define usb_try_autosuspend_device(udev) do {} while (0)
static inline int usb_autoresume_device(struct usb_device *udev)
{
return 0;