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pm: device_runtime: Optimize pm_device_runtime_usage #81453

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Nov 26, 2024
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pm: device_runtime: Optimize pm_device_runtime_usage #81453

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18 changes: 1 addition & 17 deletions subsys/pm/device_runtime.c
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Original file line number Diff line number Diff line change
Expand Up @@ -563,25 +563,9 @@ bool pm_device_runtime_is_enabled(const struct device *dev)

int pm_device_runtime_usage(const struct device *dev)
{
struct pm_device *pm = dev->pm;
uint32_t usage;

if (!pm_device_runtime_is_enabled(dev)) {
return -ENOTSUP;
}

if (atomic_test_bit(&dev->pm_base->flags, PM_DEVICE_FLAG_ISR_SAFE)) {
struct pm_device_isr *pm_sync = dev->pm_isr;
k_spinlock_key_t k = k_spin_lock(&pm_sync->lock);

usage = pm_sync->base.usage;

k_spin_unlock(&pm_sync->lock, k);
} else {
(void)k_sem_take(&pm->lock, K_FOREVER);
usage = pm->base.usage;
k_sem_give(&pm->lock);
}

return usage;
return dev->pm_base->usage;
}
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