3 files changed, 10 insertions, 34 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;