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-rw-r--r--drivers/base/power/domain.c342
-rw-r--r--drivers/cpuidle/cpuidle.c1
-rw-r--r--drivers/cpuidle/governors/menu.c3
-rw-r--r--include/linux/cpuidle.h1
-rw-r--r--include/linux/pm_domain.h18
5 files changed, 290 insertions, 75 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 83aa694a8efe..ba3487c9835b 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -75,19 +75,6 @@ static int genpd_start_dev(struct generic_pm_domain *genpd, struct device *dev)
start_latency_ns, "start");
}
-static int genpd_save_dev(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_TIMED_CALLBACK(genpd, int, save_state, dev,
- save_state_latency_ns, "state save");
-}
-
-static int genpd_restore_dev(struct generic_pm_domain *genpd, struct device *dev)
-{
- return GENPD_DEV_TIMED_CALLBACK(genpd, int, restore_state, dev,
- restore_state_latency_ns,
- "state restore");
-}
-
static bool genpd_sd_counter_dec(struct generic_pm_domain *genpd)
{
bool ret = false;
@@ -139,6 +126,19 @@ static void genpd_set_active(struct generic_pm_domain *genpd)
genpd->status = GPD_STATE_ACTIVE;
}
+static void genpd_recalc_cpu_exit_latency(struct generic_pm_domain *genpd)
+{
+ s64 usecs64;
+
+ if (!genpd->cpu_data)
+ return;
+
+ usecs64 = genpd->power_on_latency_ns;
+ do_div(usecs64, NSEC_PER_USEC);
+ usecs64 += genpd->cpu_data->saved_exit_latency;
+ genpd->cpu_data->idle_state->exit_latency = usecs64;
+}
+
/**
* __pm_genpd_poweron - Restore power to a given PM domain and its masters.
* @genpd: PM domain to power up.
@@ -146,7 +146,7 @@ static void genpd_set_active(struct generic_pm_domain *genpd)
* Restore power to @genpd and all of its masters so that it is possible to
* resume a device belonging to it.
*/
-int __pm_genpd_poweron(struct generic_pm_domain *genpd)
+static int __pm_genpd_poweron(struct generic_pm_domain *genpd)
__releases(&genpd->lock) __acquires(&genpd->lock)
{
struct gpd_link *link;
@@ -176,6 +176,13 @@ int __pm_genpd_poweron(struct generic_pm_domain *genpd)
return 0;
}
+ if (genpd->cpu_data) {
+ cpuidle_pause_and_lock();
+ genpd->cpu_data->idle_state->disabled = true;
+ cpuidle_resume_and_unlock();
+ goto out;
+ }
+
/*
* The list is guaranteed not to change while the loop below is being
* executed, unless one of the masters' .power_on() callbacks fiddles
@@ -215,6 +222,7 @@ int __pm_genpd_poweron(struct generic_pm_domain *genpd)
if (elapsed_ns > genpd->power_on_latency_ns) {
genpd->power_on_latency_ns = elapsed_ns;
genpd->max_off_time_changed = true;
+ genpd_recalc_cpu_exit_latency(genpd);
if (genpd->name)
pr_warning("%s: Power-on latency exceeded, "
"new value %lld ns\n", genpd->name,
@@ -222,6 +230,7 @@ int __pm_genpd_poweron(struct generic_pm_domain *genpd)
}
}
+ out:
genpd_set_active(genpd);
return 0;
@@ -251,6 +260,19 @@ int pm_genpd_poweron(struct generic_pm_domain *genpd)
#ifdef CONFIG_PM_RUNTIME
+static int genpd_save_dev(struct generic_pm_domain *genpd, struct device *dev)
+{
+ return GENPD_DEV_TIMED_CALLBACK(genpd, int, save_state, dev,
+ save_state_latency_ns, "state save");
+}
+
+static int genpd_restore_dev(struct generic_pm_domain *genpd, struct device *dev)
+{
+ return GENPD_DEV_TIMED_CALLBACK(genpd, int, restore_state, dev,
+ restore_state_latency_ns,
+ "state restore");
+}
+
static int genpd_dev_pm_qos_notifier(struct notifier_block *nb,
unsigned long val, void *ptr)
{
@@ -275,7 +297,7 @@ static int genpd_dev_pm_qos_notifier(struct notifier_block *nb,
pdd = dev->power.subsys_data ?
dev->power.subsys_data->domain_data : NULL;
- if (pdd) {
+ if (pdd && pdd->dev) {
to_gpd_data(pdd)->td.constraint_changed = true;
genpd = dev_to_genpd(dev);
} else {
@@ -339,19 +361,16 @@ static void __pm_genpd_restore_device(struct pm_domain_data *pdd,
{
struct generic_pm_domain_data *gpd_data = to_gpd_data(pdd);
struct device *dev = pdd->dev;
+ bool need_restore = gpd_data->need_restore;
- if (!gpd_data->need_restore)
- return;
-
+ gpd_data->need_restore = false;
mutex_unlock(&genpd->lock);
genpd_start_dev(genpd, dev);
- genpd_restore_dev(genpd, dev);
- genpd_stop_dev(genpd, dev);
+ if (need_restore)
+ genpd_restore_dev(genpd, dev);
mutex_lock(&genpd->lock);
-
- gpd_data->need_restore = false;
}
/**
@@ -458,6 +477,21 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd)
}
}
+ if (genpd->cpu_data) {
+ /*
+ * If cpu_data is set, cpuidle should turn the domain off when
+ * the CPU in it is idle. In that case we don't decrement the
+ * subdomain counts of the master domains, so that power is not
+ * removed from the current domain prematurely as a result of
+ * cutting off the masters' power.
+ */
+ genpd->status = GPD_STATE_POWER_OFF;
+ cpuidle_pause_and_lock();
+ genpd->cpu_data->idle_state->disabled = false;
+ cpuidle_resume_and_unlock();
+ goto out;
+ }
+
if (genpd->power_off) {
ktime_t time_start;
s64 elapsed_ns;
@@ -595,7 +629,7 @@ static int pm_genpd_runtime_resume(struct device *dev)
/* If power.irq_safe, the PM domain is never powered off. */
if (dev->power.irq_safe)
- goto out;
+ return genpd_start_dev(genpd, dev);
mutex_lock(&genpd->lock);
ret = __pm_genpd_poweron(genpd);
@@ -628,9 +662,6 @@ static int pm_genpd_runtime_resume(struct device *dev)
wake_up_all(&genpd->status_wait_queue);
mutex_unlock(&genpd->lock);
- out:
- genpd_start_dev(genpd, dev);
-
return 0;
}
@@ -1235,6 +1266,27 @@ static void pm_genpd_complete(struct device *dev)
#endif /* CONFIG_PM_SLEEP */
+static struct generic_pm_domain_data *__pm_genpd_alloc_dev_data(struct device *dev)
+{
+ struct generic_pm_domain_data *gpd_data;
+
+ gpd_data = kzalloc(sizeof(*gpd_data), GFP_KERNEL);
+ if (!gpd_data)
+ return NULL;
+
+ mutex_init(&gpd_data->lock);
+ gpd_data->nb.notifier_call = genpd_dev_pm_qos_notifier;
+ dev_pm_qos_add_notifier(dev, &gpd_data->nb);
+ return gpd_data;
+}
+
+static void __pm_genpd_free_dev_data(struct device *dev,
+ struct generic_pm_domain_data *gpd_data)
+{
+ dev_pm_qos_remove_notifier(dev, &gpd_data->nb);
+ kfree(gpd_data);
+}
+
/**
* __pm_genpd_add_device - Add a device to an I/O PM domain.
* @genpd: PM domain to add the device to.
@@ -1244,7 +1296,7 @@ static void pm_genpd_complete(struct device *dev)
int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
struct gpd_timing_data *td)
{
- struct generic_pm_domain_data *gpd_data;
+ struct generic_pm_domain_data *gpd_data_new, *gpd_data = NULL;
struct pm_domain_data *pdd;
int ret = 0;
@@ -1253,14 +1305,10 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(dev))
return -EINVAL;
- gpd_data = kzalloc(sizeof(*gpd_data), GFP_KERNEL);
- if (!gpd_data)
+ gpd_data_new = __pm_genpd_alloc_dev_data(dev);
+ if (!gpd_data_new)
return -ENOMEM;
- mutex_init(&gpd_data->lock);
- gpd_data->nb.notifier_call = genpd_dev_pm_qos_notifier;
- dev_pm_qos_add_notifier(dev, &gpd_data->nb);
-
genpd_acquire_lock(genpd);
if (genpd->prepared_count > 0) {
@@ -1274,35 +1322,42 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
goto out;
}
+ ret = dev_pm_get_subsys_data(dev);
+ if (ret)
+ goto out;
+
genpd->device_count++;
genpd->max_off_time_changed = true;
- dev_pm_get_subsys_data(dev);
-
- mutex_lock(&gpd_data->lock);
spin_lock_irq(&dev->power.lock);
+
dev->pm_domain = &genpd->domain;
- dev->power.subsys_data->domain_data = &gpd_data->base;
- gpd_data->base.dev = dev;
- list_add_tail(&gpd_data->base.list_node, &genpd->dev_list);
- gpd_data->need_restore = genpd->status == GPD_STATE_POWER_OFF;
+ 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++;
if (td)
gpd_data->td = *td;
+ spin_unlock_irq(&dev->power.lock);
+
+ mutex_lock(&gpd_data->lock);
+ gpd_data->base.dev = dev;
+ list_add_tail(&gpd_data->base.list_node, &genpd->dev_list);
+ gpd_data->need_restore = genpd->status == GPD_STATE_POWER_OFF;
gpd_data->td.constraint_changed = true;
gpd_data->td.effective_constraint_ns = -1;
- spin_unlock_irq(&dev->power.lock);
mutex_unlock(&gpd_data->lock);
- genpd_release_lock(genpd);
-
- return 0;
-
out:
genpd_release_lock(genpd);
- dev_pm_qos_remove_notifier(dev, &gpd_data->nb);
- kfree(gpd_data);
+ if (gpd_data != gpd_data_new)
+ __pm_genpd_free_dev_data(dev, gpd_data_new);
+
return ret;
}
@@ -1348,6 +1403,7 @@ int pm_genpd_remove_device(struct generic_pm_domain *genpd,
{
struct generic_pm_domain_data *gpd_data;
struct pm_domain_data *pdd;
+ bool remove = false;
int ret = 0;
dev_dbg(dev, "%s()\n", __func__);
@@ -1368,22 +1424,28 @@ int pm_genpd_remove_device(struct generic_pm_domain *genpd,
genpd->max_off_time_changed = true;
spin_lock_irq(&dev->power.lock);
+
dev->pm_domain = NULL;
pdd = dev->power.subsys_data->domain_data;
list_del_init(&pdd->list_node);
- dev->power.subsys_data->domain_data = NULL;
+ gpd_data = to_gpd_data(pdd);
+ if (--gpd_data->refcount == 0) {
+ dev->power.subsys_data->domain_data = NULL;
+ remove = true;
+ }
+
spin_unlock_irq(&dev->power.lock);
- gpd_data = to_gpd_data(pdd);
mutex_lock(&gpd_data->lock);
pdd->dev = NULL;
mutex_unlock(&gpd_data->lock);
genpd_release_lock(genpd);
- dev_pm_qos_remove_notifier(dev, &gpd_data->nb);
- kfree(gpd_data);
dev_pm_put_subsys_data(dev);
+ if (remove)
+ __pm_genpd_free_dev_data(dev, gpd_data);
+
return 0;
out:
@@ -1541,33 +1603,52 @@ int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
* @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 pm_domain_data *pdd;
+ struct generic_pm_domain_data *gpd_data_new, *gpd_data = NULL;
int ret = 0;
- if (!(dev && dev->power.subsys_data && ops))
+ 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();
- pdd = dev->power.subsys_data->domain_data;
- if (pdd) {
- struct generic_pm_domain_data *gpd_data = to_gpd_data(pdd);
+ ret = dev_pm_get_subsys_data(dev);
+ if (ret)
+ goto out;
- gpd_data->ops = *ops;
- if (td)
- gpd_data->td = *td;
+ 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 {
- ret = -EINVAL;
+ 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);
@@ -1576,10 +1657,13 @@ 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 pm_domain_data *pdd;
+ struct generic_pm_domain_data *gpd_data = NULL;
+ bool remove = false;
int ret = 0;
if (!(dev && dev->power.subsys_data))
@@ -1588,24 +1672,118 @@ int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
pm_runtime_disable(dev);
device_pm_lock();
- pdd = dev->power.subsys_data->domain_data;
- if (pdd) {
- struct generic_pm_domain_data *gpd_data = to_gpd_data(pdd);
+ spin_lock_irq(&dev->power.lock);
- gpd_data->ops = (struct gpd_dev_ops){ 0 };
+ 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);
- return ret;
+ 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);
+int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
+{
+ struct cpuidle_driver *cpuidle_drv;
+ struct gpd_cpu_data *cpu_data;
+ struct cpuidle_state *idle_state;
+ int ret = 0;
+
+ if (IS_ERR_OR_NULL(genpd) || state < 0)
+ return -EINVAL;
+
+ genpd_acquire_lock(genpd);
+
+ if (genpd->cpu_data) {
+ ret = -EEXIST;
+ goto out;
+ }
+ cpu_data = kzalloc(sizeof(*cpu_data), GFP_KERNEL);
+ if (!cpu_data) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ cpuidle_drv = cpuidle_driver_ref();
+ if (!cpuidle_drv) {
+ ret = -ENODEV;
+ goto out;
+ }
+ if (cpuidle_drv->state_count <= state) {
+ ret = -EINVAL;
+ goto err;
+ }
+ idle_state = &cpuidle_drv->states[state];
+ if (!idle_state->disabled) {
+ ret = -EAGAIN;
+ goto err;
+ }
+ cpu_data->idle_state = idle_state;
+ cpu_data->saved_exit_latency = idle_state->exit_latency;
+ genpd->cpu_data = cpu_data;
+ genpd_recalc_cpu_exit_latency(genpd);
+
+ out:
+ genpd_release_lock(genpd);
+ return ret;
+
+ err:
+ cpuidle_driver_unref();
+ goto out;
+}
+
+int genpd_detach_cpuidle(struct generic_pm_domain *genpd)
+{
+ struct gpd_cpu_data *cpu_data;
+ struct cpuidle_state *idle_state;
+ int ret = 0;
+
+ if (IS_ERR_OR_NULL(genpd))
+ return -EINVAL;
+
+ genpd_acquire_lock(genpd);
+
+ cpu_data = genpd->cpu_data;
+ if (!cpu_data) {
+ ret = -ENODEV;
+ goto out;
+ }
+ idle_state = cpu_data->idle_state;
+ if (!idle_state->disabled) {
+ ret = -EAGAIN;
+ goto out;
+ }
+ idle_state->exit_latency = cpu_data->saved_exit_latency;
+ cpuidle_driver_unref();
+ genpd->cpu_data = NULL;
+ kfree(cpu_data);
+
+ out:
+ genpd_release_lock(genpd);
+ return ret;
+}
+
/* Default device callbacks for generic PM domains. */
/**
@@ -1615,16 +1793,24 @@ EXPORT_SYMBOL_GPL(__pm_genpd_remove_callbacks);
static int pm_genpd_default_save_state(struct device *dev)
{
int (*cb)(struct device *__dev);
- struct device_driver *drv = dev->driver;
cb = dev_gpd_data(dev)->ops.save_state;
if (cb)
return cb(dev);
- if (drv && drv->pm && drv->pm->runtime_suspend)
- return drv->pm->runtime_suspend(dev);
+ if (dev->type && dev->type->pm)
+ cb = dev->type->pm->runtime_suspend;
+ else if (dev->class && dev->class->pm)
+ cb = dev->class->pm->runtime_suspend;
+ else if (dev->bus && dev->bus->pm)
+ cb = dev->bus->pm->runtime_suspend;
+ else
+ cb = NULL;
- return 0;
+ if (!cb && dev->driver && dev->driver->pm)
+ cb = dev->driver->pm->runtime_suspend;
+
+ return cb ? cb(dev) : 0;
}
/**
@@ -1634,16 +1820,24 @@ static int pm_genpd_default_save_state(struct device *dev)
static int pm_genpd_default_restore_state(struct device *dev)
{
int (*cb)(struct device *__dev);
- struct device_driver *drv = dev->driver;
cb = dev_gpd_data(dev)->ops.restore_state;
if (cb)
return cb(dev);
- if (drv && drv->pm && drv->pm->runtime_resume)
- return drv->pm->runtime_resume(dev);
+ if (dev->type && dev->type->pm)
+ cb = dev->type->pm->runtime_resume;
+ else if (dev->class && dev->class->pm)
+ cb = dev->class->pm->runtime_resume;
+ else if (dev->bus && dev->bus->pm)
+ cb = dev->bus->pm->runtime_resume;
+ else
+ cb = NULL;
- return 0;
+ if (!cb && dev->driver && dev->driver->pm)
+ cb = dev->driver->pm->runtime_resume;
+
+ return cb ? cb(dev) : 0;
}
#ifdef CONFIG_PM_SLEEP
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index efa9a2ca30e7..d6a533e68e0f 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -281,6 +281,7 @@ static void poll_idle_init(struct cpuidle_driver *drv)
state->power_usage = -1;
state->flags = 0;
state->enter = poll_idle;
+ state->disabled = false;
}
#else
static void poll_idle_init(struct cpuidle_driver *drv) {}
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 8391d93f57d5..5b1f2c372c1f 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -281,6 +281,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* unless the timer is happening really really soon.
*/
if (data->expected_us > 5 &&
+ !drv->states[CPUIDLE_DRIVER_STATE_START].disabled &&
dev->states_usage[CPUIDLE_DRIVER_STATE_START].disable == 0)
data->last_state_idx = CPUIDLE_DRIVER_STATE_START;
@@ -292,7 +293,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
struct cpuidle_state *s = &drv->states[i];
struct cpuidle_state_usage *su = &dev->states_usage[i];
- if (su->disable)
+ if (s->disabled || su->disable)
continue;
if (s->target_residency > data->predicted_us)
continue;
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index ca6cdf55eb18..89dcd30ac8ea 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -47,6 +47,7 @@ struct cpuidle_state {
unsigned int exit_latency; /* in US */
int power_usage; /* in mW */
unsigned int target_residency; /* in US */
+ bool disabled; /* disabled on all CPUs */
int (*enter) (struct cpuidle_device *dev,
struct cpuidle_driver *drv,
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 30f794eb3826..a7d6172922d4 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -15,6 +15,7 @@
#include <linux/err.h>
#include <linux/of.h>
#include <linux/notifier.h>
+#include <linux/cpuidle.h>
enum gpd_status {
GPD_STATE_ACTIVE = 0, /* PM domain is active */
@@ -45,6 +46,11 @@ struct gpd_dev_ops {
bool (*active_wakeup)(struct device *dev);
};
+struct gpd_cpu_data {
+ unsigned int saved_exit_latency;
+ struct cpuidle_state *idle_state;
+};
+
struct generic_pm_domain {
struct dev_pm_domain domain; /* PM domain operations */
struct list_head gpd_list_node; /* Node in the global PM domains list */
@@ -75,6 +81,7 @@ struct generic_pm_domain {
bool max_off_time_changed;
bool cached_power_down_ok;
struct device_node *of_node; /* Node in device tree */
+ struct gpd_cpu_data *cpu_data;
};
static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)
@@ -105,6 +112,7 @@ struct generic_pm_domain_data {
struct gpd_timing_data td;
struct notifier_block nb;
struct mutex lock;
+ unsigned int refcount;
bool need_restore;
bool always_on;
};
@@ -155,6 +163,8 @@ extern int pm_genpd_add_callbacks(struct device *dev,
struct gpd_dev_ops *ops,
struct gpd_timing_data *td);
extern int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td);
+extern int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state);
+extern int genpd_detach_cpuidle(struct generic_pm_domain *genpd);
extern void pm_genpd_init(struct generic_pm_domain *genpd,
struct dev_power_governor *gov, bool is_off);
@@ -211,6 +221,14 @@ static inline int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
{
return -ENOSYS;
}
+static inline int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st)
+{
+ return -ENOSYS;
+}
+static inline int genpd_detach_cpuidle(struct generic_pm_domain *genpd)
+{
+ return -ENOSYS;
+}
static inline void pm_genpd_init(struct generic_pm_domain *genpd,
struct dev_power_governor *gov, bool is_off)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 00:11:51 +0000