linux-kernel - Re: [PATCH 1/3] ALSA: hda/tegra: Skip reset on BPMP devices

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Message-ID: <b7ad34b4-02be-00ed-05e2-12ea31ababb2@gmail.com>
Date:   Tue, 14 Dec 2021 18:34:25 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Sameer Pujar <spujar@...dia.com>, tiwai@...e.com,
        broonie@...nel.org, lgirdwood@...il.com, thierry.reding@...il.com,
        perex@...ex.cz, jonathanh@...dia.com, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Mohan Kumar <mkumard@...dia.com>, robh+dt@...nel.org
Subject: Re: [PATCH 1/3] ALSA: hda/tegra: Skip reset on BPMP devices

14.12.2021 17:29, Takashi Iwai пишет:
>> I'm also wondering whether snd_power_change_state() should be moved into
>> RPM callbacks and whether this function does anything practically useful
>> on Tegra at all.
> This call is mostly for ALSA core stuff, and not necessarily
> reflecting the exact device power state.  The major role is for
> controlling / blocking the device accesses at the system
> suspend/resume, so it's correct to set only in the system
> suspend/resume callbacks, not in runtime PM.
> 

Thank you for the clarification.