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Subject: Re: [PATCH v2 6/9] ASoC: tegra: add Tegra186 based DSPK driver
To:     Dmitry Osipenko <digetx@gmail.com>
References: <1580380422-3431-1-git-send-email-spujar@nvidia.com>
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From:   Sameer Pujar <spujar@nvidia.com>
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Date:   Fri, 7 Feb 2020 16:56:55 +0530
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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 =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>> +static const struct dev_pm_ops tegra186_dspk_pm_ops =3D {
>> +     SET_RUNTIME_PM_OPS(tegra186_dspk_runtime_suspend,
>> +                        tegra186_dspk_runtime_resume, NULL)
>> +     SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
>> +                                  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=20
codec driver suspend