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power: Make pm_system_suspend private

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pm_system_suspend is called only from the idle thread and should
not be exported as a public API.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2021-02-23 08:59:28 -08:00 • committed by Anas Nashif
commit 10f29359d7
2 changed files with 21 additions and 25 deletions
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25
include/power/power.h
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@ -247,31 +247,6 @@ void pm_system_resume_from_deep_sleep(void);
*/
void pm_system_resume(void);
/**
* @brief Allow entry to power state
*
* When the kernel is about to go idle, it calls this function to notify the
* power management subsystem, that the kernel is ready to enter the idle state.
*
* At this point, the kernel has disabled interrupts and computed the maximum
* time the system can remain idle. The function passes the time that the system
* can remain idle. The SOC interface performs power operations that can be done
* in the available time. The power management operations must halt execution of
* the CPU.
*
* This function assumes that a wake up event has already been set up by the
* application.
*
* This function is entered with interrupts disabled. It should re-enable
* interrupts if it had entered a power state.
*
* @param ticks The upcoming kernel idle time.
*
* @return Power state which was entered or POWER_STATE_ACTIVE if SoC was
* kept in the active state.
*/
enum pm_state pm_system_suspend(int32_t ticks);
/**
* @brief Do any SoC or architecture specific post ops after sleep state exits.
*

21
kernel/include/kernel_internal.h
View file

@ -207,6 +207,27 @@ void z_kernel_map_fixup(void);
!__i.key; \
k_spin_unlock(lck, __key), __i.key = 1)
#ifdef CONFIG_PM
/* When the kernel is about to go idle, it calls this function to notify the
* power management subsystem, that the kernel is ready to enter the idle state.
*
* At this point, the kernel has disabled interrupts and computed the maximum
* time the system can remain idle. The function passes the time that the system
* can remain idle. The SOC interface performs power operations that can be done
* in the available time. The power management operations must halt execution of
* the CPU.
*
* This function assumes that a wake up event has already been set up by the
* application.
*
* This function is entered with interrupts disabled. It should re-enable
* interrupts if it had entered a power state.
*/
enum pm_state pm_system_suspend(int32_t ticks);
#endif
#ifdef __cplusplus
}
#endif