diff options
| -rw-r--r-- | drivers/base/power/main.c | 30 | ||||
| -rw-r--r-- | drivers/base/power/resume.c | 7 | ||||
| -rw-r--r-- | drivers/base/power/suspend.c | 7 | ||||
| -rw-r--r-- | include/linux/pm.h | 3 |
4 files changed, 10 insertions, 37 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 7b3cc3c15b9d..eb9f38d0aa58 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 f6cfea496ea0..99679e7a6cc6 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 9d6701cd7f10..19fae88de7b3 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; diff --git a/include/linux/pm.h b/include/linux/pm.h index b2c4fde4e994..3fd65ad4b097 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -269,13 +269,10 @@ struct dev_pm_info { unsigned should_wakeup:1; pm_message_t prev_state; void * saved_state; - struct device * pm_parent; struct list_head entry; #endif }; -extern void device_pm_set_parent(struct device * dev, struct device * parent); - extern int device_power_down(pm_message_t state); extern void device_power_up(void); extern void device_resume(void); |