linux-kernel - Re: [alsa-devel] [RFC PATCH 2/2] ASoC: simple-card: Add documentation for force-dpcm property

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Date:   Mon, 14 Oct 2019 17:10:54 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Daniel Baluta <daniel.baluta@...il.com>
Cc:     Daniel Baluta <daniel.baluta@....com>,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Takashi Iwai <tiwai@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        dl-linux-imx <linux-imx@....com>,
        Guido Roncarolo <guido.roncarolo@....com>,
        Jerome Laclavere <jerome.laclavere@....com>
Subject: Re: [alsa-devel] [RFC PATCH 2/2] ASoC: simple-card: Add
 documentation for force-dpcm property

On Mon, Oct 14, 2019 at 04:17:31PM +0300, Daniel Baluta wrote:
> On Mon, Oct 14, 2019 at 2:57 PM Mark Brown <broonie@...nel.org> wrote:

> > DPCM is an implementation detail of Linux (and one that we want to phase
> > out going forwards too), we shouldn't be putting it in the DT bindings
> > where it becomes an ABI.

> I see your point. This is way I marked the patch series as RFC. I need to find
> another way to reuse simple-card as machine driver for SOF.

Have a look at the way the Renesas systems are using this and the audio
graph card - they have DPCM.

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