PM / QoS: Add type to dev_pm_qos_add_ancestor_request() arguments

Rework dev_pm_qos_add_ancestor_request() so that device PM QoS type
is passed to it as the third argument and make it support the
DEV_PM_QOS_LATENCY_TOLERANCE device PM QoS type (in addition to
DEV_PM_QOS_RESUME_LATENCY).

That will allow the drivers of devices without latency tolerance
hardware support to use their ancestors having it as proxies for
their latency tolerance requirements.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 0b476019be55..9ab4bf7c4646 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -149,7 +149,8 @@ int dev_pm_qos_remove_global_notifier(struct notifier_block *notifier);
 void dev_pm_qos_constraints_init(struct device *dev);
 void dev_pm_qos_constraints_destroy(struct device *dev);
 int dev_pm_qos_add_ancestor_request(struct device *dev,
-                                    struct dev_pm_qos_request *req, s32 value);
+                                    struct dev_pm_qos_request *req,
+                                    enum dev_pm_qos_req_type type, s32 value);
 #else
 static inline enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev,
                                                           s32 mask)
@@ -192,7 +193,9 @@ static inline void dev_pm_qos_constraints_destroy(struct device *dev)
         dev->power.power_state = PMSG_INVALID;
 }
 static inline int dev_pm_qos_add_ancestor_request(struct device *dev,
-                                    struct dev_pm_qos_request *req, s32 value)
+                                                  struct dev_pm_qos_request *req,
+                                                  enum dev_pm_qos_req_type type,
+                                                  s32 value)
                         { return 0; }
 #endif