1 files changed, 7 insertions, 3 deletions

diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 14fb0953fa47..c71457cb8a79 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -11,8 +11,11 @@
 
 #include <linux/device.h>
 
-#define GPD_IN_SUSPEND  1
-#define GPD_POWER_OFF   2
+enum gpd_status {
+        GPD_STATE_ACTIVE = 0,   /* PM domain is active */
+        GPD_STATE_BUSY,         /* Something is happening to the PM domain */
+        GPD_STATE_POWER_OFF,    /* PM domain is off */
+};
 
 struct dev_power_governor {
         bool (*power_down_ok)(struct dev_pm_domain *domain);
@@ -29,7 +32,8 @@ struct generic_pm_domain {
         struct work_struct power_off_work;
         unsigned int in_progress;       /* Number of devices being suspended now */
         unsigned int sd_count;  /* Number of subdomains with power "on" */
-        bool power_is_off;      /* Whether or not power has been removed */
+        enum gpd_status status; /* Current state of the domain */
+        wait_queue_head_t status_wait_queue;
         unsigned int device_count;      /* Number of devices */
         unsigned int suspended_count;   /* System suspend device counter */
         unsigned int prepared_count;    /* Suspend counter of prepared devices */