PM: QoS: Drop frequency QoS types from device PM QoS

There are no more active users of DEV_PM_QOS_MIN_FREQUENCY and
DEV_PM_QOS_MAX_FREQUENCY device PM QoS request types, so drop them
along with the code supporting them.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index 6c90fd7..350dcaf 100644 (file)
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -115,20 +115,10 @@ s32 dev_pm_qos_read_value(struct device *dev, enum dev_pm_qos_req_type type)
 
        spin_lock_irqsave(&dev->power.lock, flags);
 
-       switch (type) {
-       case DEV_PM_QOS_RESUME_LATENCY:
+       if (type == DEV_PM_QOS_RESUME_LATENCY) {
                ret = IS_ERR_OR_NULL(qos) ? PM_QOS_RESUME_LATENCY_NO_CONSTRAINT
                        : pm_qos_read_value(&qos->resume_latency);
-               break;
-       case DEV_PM_QOS_MIN_FREQUENCY:
-               ret = IS_ERR_OR_NULL(qos) ? PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE
-                       : pm_qos_read_value(&qos->min_frequency);
-               break;
-       case DEV_PM_QOS_MAX_FREQUENCY:
-               ret = IS_ERR_OR_NULL(qos) ? PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE
-                       : pm_qos_read_value(&qos->max_frequency);
-               break;
-       default:
+       } else {
                WARN_ON(1);
                ret = 0;
        }
@@ -169,14 +159,6 @@ static int apply_constraint(struct dev_pm_qos_request *req,
                        req->dev->power.set_latency_tolerance(req->dev, value);
                }
                break;
-       case DEV_PM_QOS_MIN_FREQUENCY:
-               ret = pm_qos_update_target(&qos->min_frequency,
-                                          &req->data.pnode, action, value);
-               break;
-       case DEV_PM_QOS_MAX_FREQUENCY:
-               ret = pm_qos_update_target(&qos->max_frequency,
-                                          &req->data.pnode, action, value);
-               break;
        case DEV_PM_QOS_FLAGS:
                ret = pm_qos_update_flags(&qos->flags, &req->data.flr,
                                          action, value);
@@ -227,24 +209,6 @@ static int dev_pm_qos_constraints_allocate(struct device *dev)
        c->no_constraint_value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
        c->type = PM_QOS_MIN;
 
-       c = &qos->min_frequency;
-       plist_head_init(&c->list);
-       c->target_value = PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE;
-       c->default_value = PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE;
-       c->no_constraint_value = PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE;
-       c->type = PM_QOS_MAX;
-       c->notifiers = ++n;
-       BLOCKING_INIT_NOTIFIER_HEAD(n);
-
-       c = &qos->max_frequency;
-       plist_head_init(&c->list);
-       c->target_value = PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE;
-       c->default_value = PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE;
-       c->no_constraint_value = PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE;
-       c->type = PM_QOS_MIN;
-       c->notifiers = ++n;
-       BLOCKING_INIT_NOTIFIER_HEAD(n);
-
        INIT_LIST_HEAD(&qos->flags.list);
 
        spin_lock_irq(&dev->power.lock);
@@ -305,18 +269,6 @@ void dev_pm_qos_constraints_destroy(struct device *dev)
                memset(req, 0, sizeof(*req));
        }
 
-       c = &qos->min_frequency;
-       plist_for_each_entry_safe(req, tmp, &c->list, data.pnode) {
-               apply_constraint(req, PM_QOS_REMOVE_REQ, PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE);
-               memset(req, 0, sizeof(*req));
-       }
-
-       c = &qos->max_frequency;
-       plist_for_each_entry_safe(req, tmp, &c->list, data.pnode) {
-               apply_constraint(req, PM_QOS_REMOVE_REQ, PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE);
-               memset(req, 0, sizeof(*req));
-       }
-
        f = &qos->flags;
        list_for_each_entry_safe(req, tmp, &f->list, data.flr.node) {
                apply_constraint(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
@@ -428,8 +380,6 @@ static int __dev_pm_qos_update_request(struct dev_pm_qos_request *req,
        switch(req->type) {
        case DEV_PM_QOS_RESUME_LATENCY:
        case DEV_PM_QOS_LATENCY_TOLERANCE:
-       case DEV_PM_QOS_MIN_FREQUENCY:
-       case DEV_PM_QOS_MAX_FREQUENCY:
                curr_value = req->data.pnode.prio;
                break;
        case DEV_PM_QOS_FLAGS:
@@ -557,14 +507,6 @@ int dev_pm_qos_add_notifier(struct device *dev, struct notifier_block *notifier,
                ret = blocking_notifier_chain_register(dev->power.qos->resume_latency.notifiers,
                                                       notifier);
                break;
-       case DEV_PM_QOS_MIN_FREQUENCY:
-               ret = blocking_notifier_chain_register(dev->power.qos->min_frequency.notifiers,
-                                                      notifier);
-               break;
-       case DEV_PM_QOS_MAX_FREQUENCY:
-               ret = blocking_notifier_chain_register(dev->power.qos->max_frequency.notifiers,
-                                                      notifier);
-               break;
        default:
                WARN_ON(1);
                ret = -EINVAL;
@@ -604,14 +546,6 @@ int dev_pm_qos_remove_notifier(struct device *dev,
                ret = blocking_notifier_chain_unregister(dev->power.qos->resume_latency.notifiers,
                                                         notifier);
                break;
-       case DEV_PM_QOS_MIN_FREQUENCY:
-               ret = blocking_notifier_chain_unregister(dev->power.qos->min_frequency.notifiers,
-                                                        notifier);
-               break;
-       case DEV_PM_QOS_MAX_FREQUENCY:
-               ret = blocking_notifier_chain_unregister(dev->power.qos->max_frequency.notifiers,
-                                                        notifier);
-               break;
        default:
                WARN_ON(1);
                ret = -EINVAL;

diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 57b93e3..ebf5ef1 100644 (file)
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -34,8 +34,6 @@ enum pm_qos_flags_status {
 #define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT    PM_QOS_LATENCY_ANY
 #define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS PM_QOS_LATENCY_ANY_NS
 #define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0
-#define PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE     0
-#define PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE     (-1)
 #define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1)
 
 #define PM_QOS_FLAG_NO_POWER_OFF       (1 << 0)
@@ -54,8 +52,6 @@ struct pm_qos_flags_request {
 enum dev_pm_qos_req_type {
        DEV_PM_QOS_RESUME_LATENCY = 1,
        DEV_PM_QOS_LATENCY_TOLERANCE,
-       DEV_PM_QOS_MIN_FREQUENCY,
-       DEV_PM_QOS_MAX_FREQUENCY,
        DEV_PM_QOS_FLAGS,
 };
 
@@ -97,14 +93,10 @@ struct pm_qos_flags {
 struct dev_pm_qos {
        struct pm_qos_constraints resume_latency;
        struct pm_qos_constraints latency_tolerance;
-       struct pm_qos_constraints min_frequency;
-       struct pm_qos_constraints max_frequency;
        struct pm_qos_flags flags;
        struct dev_pm_qos_request *resume_latency_req;
        struct dev_pm_qos_request *latency_tolerance_req;
        struct dev_pm_qos_request *flags_req;
-       struct dev_pm_qos_request *min_frequency_req;
-       struct dev_pm_qos_request *max_frequency_req;
 };
 
 /* Action requested to pm_qos_update_target */
@@ -199,10 +191,6 @@ static inline s32 dev_pm_qos_read_value(struct device *dev,
        switch (type) {
        case DEV_PM_QOS_RESUME_LATENCY:
                return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
-       case DEV_PM_QOS_MIN_FREQUENCY:
-               return PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE;
-       case DEV_PM_QOS_MAX_FREQUENCY:
-               return PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE;
        default:
                WARN_ON(1);
                return 0;