linux-kernel - Re: Re: [PATCH v4 12/23] ASoC: simple-card: Support DPCM DAI link with multiple Codecs

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Message-ID: <20200630153220.GL5272@sirena.org.uk>
Date:   Tue, 30 Jun 2020 16:32:20 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Sameer Pujar <spujar@...dia.com>
Cc:     Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        perex@...ex.cz, tiwai@...e.com, robh+dt@...nel.org,
        lgirdwood@...il.com, thierry.reding@...il.com,
        jonathanh@...dia.com, digetx@...il.com,
        alsa-devel@...a-project.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, sharadg@...dia.com,
        mkumard@...dia.com, viswanathl@...dia.com, rlokhande@...dia.com,
        dramesh@...dia.com, atalambedu@...dia.com, nwartikar@...dia.com,
        swarren@...dia.com, nicoleotsuka@...il.com
Subject: Re: Re: [PATCH v4 12/23] ASoC: simple-card: Support DPCM DAI link
 with multiple Codecs

On Tue, Jun 30, 2020 at 06:23:49PM +0530, Sameer Pujar wrote:
> On 6/30/2020 4:31 PM, Mark Brown wrote:

> > Why simple-card and not audio-graph-card?

> Frankly speaking I have not used audio-graph-card before. I had a brief look
> at the related binding. It seems it can use similar DT properties that
> simple-card uses, although the binding style appears to be different.
> However I am not sure if it offers better solutions to the problems I am
> facing. For example, the ability to connect or form a chain of components to
> realize more complicated use cases with DPCM, some of which were discussed
> in [0]. Can you please help me understand why it could be preferred?

> [0] https://lkml.org/lkml/2020/4/30/519

It's the more modern thing which covers everything simple-card does and
more, I'd expect new development to go into that rather than
simple-card.

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