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-rw-r--r--drivers/base/power/domain.c6
-rw-r--r--include/linux/pm_domain.h2
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index cd40057..2a9f4c5 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 292079d..9a93e62 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)
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