michaelh/zephyr
1
0
Fork 0
Code Releases Activity

pm: Exclude device pm path when it is not needed

Browse source 
Remove device pm path when there is no is no power state in DT with
device pm enabled. This basically does the same thing that was done
by PM_DEVICE_RUNTIME_EXCLUSIVE.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2023-07-28 13:57:10 -07:00 • committed by Anas Nashif
commit c65be0cfb9
1 changed files with 11 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

16
subsys/pm/pm.c
View file

@ -42,7 +42,14 @@ static struct pm_state_info z_cpus_pm_forced_state[] = {
static struct k_spinlock pm_forced_state_lock;
static struct k_spinlock pm_notifier_lock;
#ifdef CONFIG_PM_DEVICE
#define DT_PM_DEVICE_ENABLED(node_id) \
COND_CODE_1(DT_PROP_OR(node_id, zephyr_pm_device_disabled, 0), \
(), (1 +))
#define DT_PM_DEVICE_NEEDED \
(DT_FOREACH_STATUS_OKAY(zephyr_power_state, DT_PM_DEVICE_ENABLED) 0)
#if defined(CONFIG_PM_DEVICE) && DT_PM_DEVICE_NEEDED
TYPE_SECTION_START_EXTERN(const struct device *, pm_device_slots);
#if !defined(CONFIG_PM_DEVICE_RUNTIME_EXCLUSIVE)
@ -99,8 +106,7 @@ static void pm_resume_devices(void)
num_susp = 0;
}
#endif /* !CONFIG_PM_DEVICE_RUNTIME_EXCLUSIVE */
#endif /* CONFIG_PM_DEVICE */
#endif /* defined(CONFIG_PM_DEVICE) && DT_PM_DEVICE_NEEDED */
/*
* Function called to notify when the system is entering / exiting a
@ -144,7 +150,7 @@ void pm_system_resume(void)
* and it may schedule another thread.
*/
if (atomic_test_and_clear_bit(z_post_ops_required, id)) {
#if defined(CONFIG_PM_DEVICE) && !defined(CONFIG_PM_DEVICE_RUNTIME_EXCLUSIVE)
#if defined(CONFIG_PM_DEVICE) && DT_PM_DEVICE_NEEDED
if (atomic_add(&_cpus_active, 1) == 0) {
pm_resume_devices();
}
@ -203,7 +209,7 @@ bool pm_system_suspend(int32_t ticks)
return false;
}
#if defined(CONFIG_PM_DEVICE) && !defined(CONFIG_PM_DEVICE_RUNTIME_EXCLUSIVE)
#if defined(CONFIG_PM_DEVICE) && DT_PM_DEVICE_NEEDED
if (atomic_sub(&_cpus_active, 1) == 1) {
if ((z_cpus_pm_state[id].state != PM_STATE_RUNTIME_IDLE) &&
!z_cpus_pm_state[id].pm_device_disabled) {