linux-kernel - Re: [PATCH v4 1/3] ASoC: dt-bindings: support imx95's CM7 core

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Message-ID: <d66996eb-f49b-448b-9743-d19a3c3eba52@sirena.org.uk>
Date: Wed, 12 Feb 2025 12:38:11 +0000
From: Mark Brown <broonie@...nel.org>
To: Daniel Baluta <daniel.baluta@...il.com>
Cc: Marco Felsch <m.felsch@...gutronix.de>,
	Laurentiu Mihalcea <laurentiumihalcea111@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	Sascha Hauer <s.hauer@...gutronix.de>, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-sound@...r.kernel.org,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 1/3] ASoC: dt-bindings: support imx95's CM7 core

On Wed, Feb 12, 2025 at 12:11:49PM +0200, Daniel Baluta wrote:
> On Wed, Feb 12, 2025 at 11:38 AM Marco Felsch <m.felsch@...gutronix.de> wrote:
> > On 25-02-11, Laurentiu Mihalcea wrote:

> > > +    const: fsl,imx95-cm7-sof

> > Albeit Krzysztof already add his Reviewed-by, can I ask why we need to
> > add the -sof suffix instead of -audio or so? SOF is a software project
> > but you can clearly run different software on the audio-copro as well.

> Sure you can run a different software project on the audio DSP but
> you will need a way to distinguish between the different projects.

> There might be different mailbox, memory configurations. So you will  need
> to invent another suffix specific to the new project.

> We can make  const: fsl,imx95-cm7-audio as the one used with SOF
> and think about a different name later for when another project will
> want to use the DSP.

I think the point here was that the DT should stay the same even if the
DSP firwmare changes, just as how changing the main OS shouldn't affect
the DT.

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