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authorRafael J. Wysocki <rjw@sisk.pl>2007-06-17 19:48:06 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-11 16:09:02 -0700
commit515c53576299e32d6bdb6295cfa2fe1307516eb4 (patch)
tree210def9ddfced2800dc014a49a6f6a37dbf795eb /drivers
parent2a0134554e12f530c6eccb1dab3f0f8954f855c9 (diff)
downloadblackbird-op-linux-515c53576299e32d6bdb6295cfa2fe1307516eb4.tar.gz
blackbird-op-linux-515c53576299e32d6bdb6295cfa2fe1307516eb4.zip
PM: Remove prev_state from struct dev_pm_info
The prev_state member of struct dev_pm_info (defined in include/linux/pm.h) is only used during a resume to check if the device's state before the suspend was 'off', in which case the device is not resumed. However, in such cases the decision whether or not to resume the device should be made on the driver level and the resume callbacks from the device's bus and class should be executed anyway (the may be needed for some things other than just powering on the device). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/power/resume.c3
-rw-r--r--drivers/base/power/suspend.c2
-rw-r--r--drivers/usb/core/hub.c5
3 files changed, 1 insertions, 9 deletions
diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c
index 99679e7a6cc6..0c9610688542 100644
--- a/drivers/base/power/resume.c
+++ b/drivers/base/power/resume.c
@@ -88,8 +88,7 @@ void dpm_resume(void)
list_move_tail(entry, &dpm_active);
mutex_unlock(&dpm_list_mtx);
- if (!dev->power.prev_state.event)
- resume_device(dev);
+ resume_device(dev);
mutex_lock(&dpm_list_mtx);
put_device(dev);
}
diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c
index af2cedfbc1b4..5178b0fbd82e 100644
--- a/drivers/base/power/suspend.c
+++ b/drivers/base/power/suspend.c
@@ -71,8 +71,6 @@ int suspend_device(struct device * dev, pm_message_t state)
dev->parent->power.power_state.event);
}
- dev->power.prev_state = dev->power.power_state;
-
if (dev->class && dev->class->suspend && !dev->power.power_state.event) {
suspend_device_dbg(dev, state, "class ");
error = dev->class->suspend(dev, state);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 24f10a19dbdb..a9cf8b30bccc 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1109,11 +1109,6 @@ void usb_root_hub_lost_power(struct usb_device *rhdev)
dev_warn(&rhdev->dev, "root hub lost power or was reset\n");
- /* Make sure no potential wakeup events get lost,
- * by forcing the root hub to be resumed.
- */
- rhdev->dev.power.prev_state.event = PM_EVENT_ON;
-
spin_lock_irqsave(&device_state_lock, flags);
hub = hdev_to_hub(rhdev);
for (port1 = 1; port1 <= rhdev->maxchild; ++port1) {
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