15.12.2021 16:50, Akhil R пишет:
>> 06.12.2021 16:00, Akhil R пишет:
>>> +static const struct __maybe_unused dev_pm_ops tegra_dma_dev_pm_ops =
>> {
>>> + SET_LATE_SYSTEM_SLEEP_PM_OPS(tegra_dma_pm_suspend,
>>> +tegra_dma_pm_resume) };
>>
>> Why late?
> To wait for the drivers using the dma to be suspended so that they
> don't keep the dma busy.
> Agree with the other comments.
Drivers are suspended in the opposite order to the probe order. DMA
controller driver is always probed first. The "late" is unneeded, please
see tegra20-apb-dma driver for the example.
