__routine = genpd->dev_ops.callback; \
if (__routine) { \
__ret = __routine(dev); \
- } else { \
- __routine = dev_gpd_data(dev)->ops.callback; \
- if (__routine) \
- __ret = __routine(dev); \
} \
__ret; \
})
return genpd;
}
-#ifdef CONFIG_PM
-
struct generic_pm_domain *dev_to_genpd(struct device *dev)
{
if (IS_ERR_OR_NULL(dev->pm_domain))
return genpd ? pm_genpd_poweron(genpd) : -EINVAL;
}
-#endif /* CONFIG_PM */
-
#ifdef CONFIG_PM_RUNTIME
static int genpd_start_dev_no_timing(struct generic_pm_domain *genpd,
* Queue up the execution of pm_genpd_poweroff() unless it's already been done
* before.
*/
-void genpd_queue_power_off_work(struct generic_pm_domain *genpd)
+static void genpd_queue_power_off_work(struct generic_pm_domain *genpd)
{
queue_work(pm_wq, &genpd->power_off_work);
}
if (IS_ERR(genpd))
return -EINVAL;
- might_sleep_if(!genpd->dev_irq_safe);
-
stop_ok = genpd->gov ? genpd->gov->stop_ok : NULL;
if (stop_ok && !stop_ok(dev))
return -EBUSY;
if (IS_ERR(genpd))
return -EINVAL;
- might_sleep_if(!genpd->dev_irq_safe);
-
/* If power.irq_safe, the PM domain is never powered off. */
if (dev->power.irq_safe)
return genpd_start_dev_no_timing(genpd, dev);
mutex_unlock(&gpd_list_lock);
}
+static int __init genpd_poweroff_unused(void)
+{
+ pm_genpd_poweroff_unused();
+ return 0;
+}
+late_initcall(genpd_poweroff_unused);
+
#else
static inline int genpd_dev_pm_qos_notifier(struct notifier_block *nb,
return NOTIFY_DONE;
}
+static inline void
+genpd_queue_power_off_work(struct generic_pm_domain *genpd) {}
+
static inline void genpd_power_off_work_fn(struct work_struct *work) {}
#define pm_genpd_runtime_suspend NULL
return GENPD_DEV_CALLBACK(genpd, bool, active_wakeup, dev);
}
-static int genpd_suspend_dev(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, suspend, dev);
-}
-
-static int genpd_suspend_late(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, suspend_late, dev);
-}
-
-static int genpd_resume_early(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, resume_early, dev);
-}
-
-static int genpd_resume_dev(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, resume, dev);
-}
-
-static int genpd_freeze_dev(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, freeze, dev);
-}
-
-static int genpd_freeze_late(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, freeze_late, dev);
-}
-
-static int genpd_thaw_early(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, thaw_early, dev);
-}
-
-static int genpd_thaw_dev(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_CALLBACK(genpd, int, thaw, dev);
-}
-
/**
* pm_genpd_sync_poweroff - Synchronously power off a PM domain and its masters.
* @genpd: PM domain to power off, if possible.
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_suspend_dev(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_suspend(dev);
}
/**
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_suspend_late(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_suspend_late(dev);
}
/**
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_resume_early(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_resume_early(dev);
}
/**
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_resume_dev(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_resume(dev);
}
/**
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_freeze_dev(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_freeze(dev);
}
/**
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_freeze_late(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_freeze_late(dev);
}
/**
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_thaw_early(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_thaw_early(dev);
}
/**
if (IS_ERR(genpd))
return -EINVAL;
- return genpd->suspend_power_off ? 0 : genpd_thaw_dev(genpd, dev);
+ return genpd->suspend_power_off ? 0 : pm_generic_thaw(dev);
}
/**
}
/**
- * pm_genpd_syscore_switch - Switch power during system core suspend or resume.
+ * genpd_syscore_switch - Switch power during system core suspend or resume.
* @dev: Device that normally is marked as "always on" to switch power for.
*
* This routine may only be called during the system core (syscore) suspend or
* resume phase for devices whose "always on" flags are set.
*/
-void pm_genpd_syscore_switch(struct device *dev, bool suspend)
+static void genpd_syscore_switch(struct device *dev, bool suspend)
{
struct generic_pm_domain *genpd;
genpd->suspended_count--;
}
}
-EXPORT_SYMBOL_GPL(pm_genpd_syscore_switch);
+
+void pm_genpd_syscore_poweroff(struct device *dev)
+{
+ genpd_syscore_switch(dev, true);
+}
+EXPORT_SYMBOL_GPL(pm_genpd_syscore_poweroff);
+
+void pm_genpd_syscore_poweron(struct device *dev)
+{
+ genpd_syscore_switch(dev, false);
+}
+EXPORT_SYMBOL_GPL(pm_genpd_syscore_poweron);
#else
return ret;
}
-/**
- * pm_genpd_add_callbacks - Add PM domain callbacks to a given device.
- * @dev: Device to add the callbacks to.
- * @ops: Set of callbacks to add.
- * @td: Timing data to add to the device along with the callbacks (optional).
- *
- * Every call to this routine should be balanced with a call to
- * __pm_genpd_remove_callbacks() and they must not be nested.
- */
-int pm_genpd_add_callbacks(struct device *dev, struct gpd_dev_ops *ops,
- struct gpd_timing_data *td)
-{
- struct generic_pm_domain_data *gpd_data_new, *gpd_data = NULL;
- int ret = 0;
-
- if (!(dev && ops))
- return -EINVAL;
-
- gpd_data_new = __pm_genpd_alloc_dev_data(dev);
- if (!gpd_data_new)
- return -ENOMEM;
-
- pm_runtime_disable(dev);
- device_pm_lock();
-
- ret = dev_pm_get_subsys_data(dev);
- if (ret)
- goto out;
-
- spin_lock_irq(&dev->power.lock);
-
- if (dev->power.subsys_data->domain_data) {
- gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
- } else {
- gpd_data = gpd_data_new;
- dev->power.subsys_data->domain_data = &gpd_data->base;
- }
- gpd_data->refcount++;
- gpd_data->ops = *ops;
- if (td)
- gpd_data->td = *td;
-
- spin_unlock_irq(&dev->power.lock);
-
- out:
- device_pm_unlock();
- pm_runtime_enable(dev);
-
- if (gpd_data != gpd_data_new)
- __pm_genpd_free_dev_data(dev, gpd_data_new);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(pm_genpd_add_callbacks);
-
-/**
- * __pm_genpd_remove_callbacks - Remove PM domain callbacks from a given device.
- * @dev: Device to remove the callbacks from.
- * @clear_td: If set, clear the device's timing data too.
- *
- * This routine can only be called after pm_genpd_add_callbacks().
- */
-int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
-{
- struct generic_pm_domain_data *gpd_data = NULL;
- bool remove = false;
- int ret = 0;
-
- if (!(dev && dev->power.subsys_data))
- return -EINVAL;
-
- pm_runtime_disable(dev);
- device_pm_lock();
-
- spin_lock_irq(&dev->power.lock);
-
- if (dev->power.subsys_data->domain_data) {
- gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
- gpd_data->ops = (struct gpd_dev_ops){ NULL };
- if (clear_td)
- gpd_data->td = (struct gpd_timing_data){ 0 };
-
- if (--gpd_data->refcount == 0) {
- dev->power.subsys_data->domain_data = NULL;
- remove = true;
- }
- } else {
- ret = -EINVAL;
- }
-
- spin_unlock_irq(&dev->power.lock);
-
- device_pm_unlock();
- pm_runtime_enable(dev);
-
- if (ret)
- return ret;
-
- dev_pm_put_subsys_data(dev);
- if (remove)
- __pm_genpd_free_dev_data(dev, gpd_data);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(__pm_genpd_remove_callbacks);
-
/**
* pm_genpd_attach_cpuidle - Connect the given PM domain with cpuidle.
* @genpd: PM domain to be connected with cpuidle.
/* Default device callbacks for generic PM domains. */
/**
- * pm_genpd_default_save_state - Default "save device state" for PM domians.
+ * pm_genpd_default_save_state - Default "save device state" for PM domains.
* @dev: Device to handle.
*/
static int pm_genpd_default_save_state(struct device *dev)
{
int (*cb)(struct device *__dev);
- cb = dev_gpd_data(dev)->ops.save_state;
- if (cb)
- return cb(dev);
-
if (dev->type && dev->type->pm)
cb = dev->type->pm->runtime_suspend;
else if (dev->class && dev->class->pm)
}
/**
- * pm_genpd_default_restore_state - Default PM domians "restore device state".
+ * pm_genpd_default_restore_state - Default PM domains "restore device state".
* @dev: Device to handle.
*/
static int pm_genpd_default_restore_state(struct device *dev)
{
int (*cb)(struct device *__dev);
- cb = dev_gpd_data(dev)->ops.restore_state;
- if (cb)
- return cb(dev);
-
if (dev->type && dev->type->pm)
cb = dev->type->pm->runtime_resume;
else if (dev->class && dev->class->pm)
return cb ? cb(dev) : 0;
}
-#ifdef CONFIG_PM_SLEEP
-
-/**
- * pm_genpd_default_suspend - Default "device suspend" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_suspend(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.suspend;
-
- return cb ? cb(dev) : pm_generic_suspend(dev);
-}
-
-/**
- * pm_genpd_default_suspend_late - Default "late device suspend" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_suspend_late(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.suspend_late;
-
- return cb ? cb(dev) : pm_generic_suspend_late(dev);
-}
-
-/**
- * pm_genpd_default_resume_early - Default "early device resume" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_resume_early(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.resume_early;
-
- return cb ? cb(dev) : pm_generic_resume_early(dev);
-}
-
-/**
- * pm_genpd_default_resume - Default "device resume" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_resume(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.resume;
-
- return cb ? cb(dev) : pm_generic_resume(dev);
-}
-
-/**
- * pm_genpd_default_freeze - Default "device freeze" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_freeze(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.freeze;
-
- return cb ? cb(dev) : pm_generic_freeze(dev);
-}
-
-/**
- * pm_genpd_default_freeze_late - Default "late device freeze" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_freeze_late(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.freeze_late;
-
- return cb ? cb(dev) : pm_generic_freeze_late(dev);
-}
-
-/**
- * pm_genpd_default_thaw_early - Default "early device thaw" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_thaw_early(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.thaw_early;
-
- return cb ? cb(dev) : pm_generic_thaw_early(dev);
-}
-
-/**
- * pm_genpd_default_thaw - Default "device thaw" for PM domians.
- * @dev: Device to handle.
- */
-static int pm_genpd_default_thaw(struct device *dev)
-{
- int (*cb)(struct device *__dev) = dev_gpd_data(dev)->ops.thaw;
-
- return cb ? cb(dev) : pm_generic_thaw(dev);
-}
-
-#else /* !CONFIG_PM_SLEEP */
-
-#define pm_genpd_default_suspend NULL
-#define pm_genpd_default_suspend_late NULL
-#define pm_genpd_default_resume_early NULL
-#define pm_genpd_default_resume NULL
-#define pm_genpd_default_freeze NULL
-#define pm_genpd_default_freeze_late NULL
-#define pm_genpd_default_thaw_early NULL
-#define pm_genpd_default_thaw NULL
-
-#endif /* !CONFIG_PM_SLEEP */
-
/**
* pm_genpd_init - Initialize a generic I/O PM domain object.
* @genpd: PM domain object to initialize.
genpd->domain.ops.complete = pm_genpd_complete;
genpd->dev_ops.save_state = pm_genpd_default_save_state;
genpd->dev_ops.restore_state = pm_genpd_default_restore_state;
- genpd->dev_ops.suspend = pm_genpd_default_suspend;
- genpd->dev_ops.suspend_late = pm_genpd_default_suspend_late;
- genpd->dev_ops.resume_early = pm_genpd_default_resume_early;
- genpd->dev_ops.resume = pm_genpd_default_resume;
- genpd->dev_ops.freeze = pm_genpd_default_freeze;
- genpd->dev_ops.freeze_late = pm_genpd_default_freeze_late;
- genpd->dev_ops.thaw_early = pm_genpd_default_thaw_early;
- genpd->dev_ops.thaw = pm_genpd_default_thaw;
mutex_lock(&gpd_list_lock);
list_add(&genpd->gpd_list_node, &gpd_list);
mutex_unlock(&gpd_list_lock);
projects / karo-tx-linux.git / blobdiff