[nrf fromtree] Device runtime PM fixes#4096
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Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#4096 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>
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Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#4096 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>
Add test that will check if PM device runtime can handle safely a case where user is calling put and get API from the thread context and device is self-managing itself calling PM device runtime API from an interrupt context. Test is failing and scenario is fixed by the following commit. Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no> (cherry picked from commit 488165deadd8f52723cf475ea1439fde74ab70b1)
…ple contexts Add early exist to the suspend function if suspending client is not the last one. It fixes the case where user calls put function from the thread context and it gets interrupted by the device interrupt where another asynchronous put is called. In that case, in the interrupt context the call will return error as semaphore cannot be taken and reference counting gets broken. By adding an early exit if context is not the last one, we ensure that only last client executes suspending procedure. Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no> (cherry picked from commit 46e5ba3732f48ee9a903239a854079fc04f7b3fa)
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PR fixes a potential race condition if PM device runtime is called from multiple preemptable contexts.