System

System Power Management API. More...

Modules
	Hooks
	System Power Management Hooks.
	Policy
	System Power Management Policy API.

Data Structures
struct	pm_notifier
	Power management notifier struct. More...

Functions
bool	pm_state_force (uint8_t cpu, const struct pm_state_info *info)
	Force usage of given power state.
void	pm_notifier_register (struct pm_notifier *notifier)
	Register a power management notifier.
int	pm_notifier_unregister (struct pm_notifier *notifier)
	Unregister a power management notifier.
const struct pm_state_info *	pm_state_next_get (uint8_t cpu)
	Gets the next power state that will be used.

Detailed Description

System Power Management API.

Since

1.2

Function Documentation

pm_notifier_register()

void pm_notifier_register

(

struct pm_notifier *

notifier

)

#include <zephyr/pm/pm.h>

Register a power management notifier.

Register the given notifier from the power management notification list.

Parameters

notifier

pm_notifier object to be registered.

pm_notifier_unregister()

int pm_notifier_unregister

(

struct pm_notifier *

notifier

)

#include <zephyr/pm/pm.h>

Unregister a power management notifier.

Remove the given notifier from the power management notification list. After that this object callbacks will not be called.

Parameters

notifier

pm_notifier object to be unregistered.

Returns

0 if the notifier was successfully removed, a negative value otherwise.

pm_state_force()

bool pm_state_force	(	uint8_t	cpu,
		const struct pm_state_info *	info
	)

#include <zephyr/pm/pm.h>

Force usage of given power state.

This function overrides decision made by PM policy forcing usage of given power state upon next entry of the idle thread.

Note

This function can only run in thread context

Parameters

cpu	CPU index.
info	Power state which should be used in the ongoing suspend operation.

pm_state_next_get()

const struct pm_state_info * pm_state_next_get

(

uint8_t

cpu

)

#include <zephyr/pm/pm.h>

Gets the next power state that will be used.

This function returns the next power state that will be used by the SoC.

Parameters

cpu	CPU index.

Returns

next pm_state_info that will be used