Re: [PATCH v2 6/9] ASoC: tegra: add Tegra186 based DSPK driver

[Dmitry Osipenko]

07.02.2020 14:26, Sameer Pujar ÐÐÑÐÑ:
> 
> 
> On 2/6/2020 10:45 PM, Dmitry Osipenko wrote:
>> External email: Use caution opening links or attachments
>>
>>
>> 30.01.2020 13:33, Sameer Pujar ÐÐÑÐÑ:
>>> +static const struct dev_pm_ops tegra186_dspk_pm_ops = {
>>> +ÂÂÂÂ SET_RUNTIME_PM_OPS(tegra186_dspk_runtime_suspend,
>>> +ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ tegra186_dspk_runtime_resume, NULL)
>>> +ÂÂÂÂ SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
>>> +ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ pm_runtime_force_resume)
>>> +};
>> Could you please explain why drivers need the "late" system sleep?
> 
> It was done to ensure core drivers are suspended first and defer the
> codec driver suspend

Suspend order is opposite to the drivers registration order. If there is
no real problem with that, then you should use the default suspend
level. Please don't try to fix a non-existent problems.