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pm: device_runtime: Fix usage API

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Fix pm_device_runtime_usage() API for isr safe devices.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2024-05-16 15:01:37 -07:00 • committed by Mahesh Mahadevan
commit 6569ae1798
1 changed files with 12 additions and 3 deletions
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15
subsys/pm/device_runtime.c
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@ -570,9 +570,18 @@ int pm_device_runtime_usage(const struct device *dev)
return -ENOTSUP;
}
(void)k_sem_take(&pm->lock, K_FOREVER);
usage = pm->base.usage;
k_sem_give(&pm->lock);
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;
}