2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index cd400575ee0e..2a9f4c5025e3 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1436,6 +1436,9 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
 
         spin_unlock_irq(&dev->power.lock);
 
+        if (genpd->attach_dev)
+                genpd->attach_dev(dev);
+
         mutex_lock(&gpd_data->lock);
         gpd_data->base.dev = dev;
         list_add_tail(&gpd_data->base.list_node, &genpd->dev_list);
@@ -1528,6 +1531,9 @@ int pm_genpd_remove_device(struct generic_pm_domain *genpd,
         genpd->device_count--;
         genpd->max_off_time_changed = true;
 
+        if (genpd->detach_dev)
+                genpd->detach_dev(dev);
+
         spin_lock_irq(&dev->power.lock);
 
         dev->pm_domain = NULL;
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 292079d8da6b..9a93e622bdea 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -73,6 +73,8 @@ struct generic_pm_domain {
         bool cached_power_down_ok;
         struct device_node *of_node; /* Node in device tree */
         struct gpd_cpu_data *cpu_data;
+        void (*attach_dev)(struct device *dev);
+        void (*detach_dev)(struct device *dev);
 };
 
 static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)