aboutsummaryrefslogtreecommitdiff
path: root/drivers/base/power
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/base/power')
-rw-r--r--drivers/base/power/main.c30
-rw-r--r--drivers/base/power/resume.c7
-rw-r--r--drivers/base/power/suspend.c7
3 files changed, 10 insertions, 34 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 7b3cc3c15b9..eb9f38d0aa5 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -33,28 +33,7 @@ DEFINE_MUTEX(dpm_list_mtx);
int (*platform_enable_wakeup)(struct device *dev, int is_on);
-
-/**
- * device_pm_set_parent - Specify power dependency.
- * @dev: Device who needs power.
- * @parent: Device that supplies power.
- *
- * This function is used to manually describe a power-dependency
- * relationship. It may be used to specify a transversal relationship
- * (where the power supplier is not the physical (or electrical)
- * ancestor of a specific device.
- * The effect of this is that the supplier will not be powered down
- * before the power dependent.
- */
-
-void device_pm_set_parent(struct device * dev, struct device * parent)
-{
- put_device(dev->power.pm_parent);
- dev->power.pm_parent = get_device(parent);
-}
-EXPORT_SYMBOL_GPL(device_pm_set_parent);
-
-int device_pm_add(struct device * dev)
+int device_pm_add(struct device *dev)
{
int error;
@@ -63,21 +42,20 @@ int device_pm_add(struct device * dev)
kobject_name(&dev->kobj));
mutex_lock(&dpm_list_mtx);
list_add_tail(&dev->power.entry, &dpm_active);
- device_pm_set_parent(dev, dev->parent);
- if ((error = dpm_sysfs_add(dev)))
+ error = dpm_sysfs_add(dev);
+ if (error)
list_del(&dev->power.entry);
mutex_unlock(&dpm_list_mtx);
return error;
}
-void device_pm_remove(struct device * dev)
+void device_pm_remove(struct device *dev)
{
pr_debug("PM: Removing info for %s:%s\n",
dev->bus ? dev->bus->name : "No Bus",
kobject_name(&dev->kobj));
mutex_lock(&dpm_list_mtx);
dpm_sysfs_remove(dev);
- put_device(dev->power.pm_parent);
list_del_init(&dev->power.entry);
mutex_unlock(&dpm_list_mtx);
}
diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c
index f6cfea496ea..99679e7a6cc 100644
--- a/drivers/base/power/resume.c
+++ b/drivers/base/power/resume.c
@@ -29,12 +29,11 @@ int resume_device(struct device * dev)
down(&dev->sem);
- if (dev->power.pm_parent
- && dev->power.pm_parent->power.power_state.event) {
+ if (dev->parent && dev->parent->power.power_state.event) {
dev_err(dev, "PM: resume from %d, parent %s still %d\n",
dev->power.power_state.event,
- dev->power.pm_parent->bus_id,
- dev->power.pm_parent->power.power_state.event);
+ dev->parent->bus_id,
+ dev->parent->power.power_state.event);
}
if (dev->bus && dev->bus->resume) {
diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c
index 9d6701cd7f1..19fae88de7b 100644
--- a/drivers/base/power/suspend.c
+++ b/drivers/base/power/suspend.c
@@ -55,13 +55,12 @@ int suspend_device(struct device * dev, pm_message_t state)
dev_dbg(dev, "PM: suspend %d-->%d\n",
dev->power.power_state.event, state.event);
}
- if (dev->power.pm_parent
- && dev->power.pm_parent->power.power_state.event) {
+ if (dev->parent && dev->parent->power.power_state.event) {
dev_err(dev,
"PM: suspend %d->%d, parent %s already %d\n",
dev->power.power_state.event, state.event,
- dev->power.pm_parent->bus_id,
- dev->power.pm_parent->power.power_state.event);
+ dev->parent->bus_id,
+ dev->parent->power.power_state.event);
}
dev->power.prev_state = dev->power.power_state;