On 07/26/2018 03:52 PM, jianchao.wang wrote: > In addition, .runtime_suspend is invoked under spinlock and irq-disabled. > So sleep is forbidden here. > Please refer to rpm_suspend > > * This function must be called under dev->power.lock with interrupts disabled > __rpm_callback will unlock the spinlock before invoke the callback. Sorry for the noise. Thanks Jianchao