From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lars-Peter Clausen <lars@metafoo.de>
Subject: Re: [PATCH 03/12 v2] ASoC: rsnd-dpcm-card: add Renesas
 sound card support for DPCM
Date: Wed, 18 Mar 2015 10:05:57 +0100
Message-ID: <55093FF5.5040201@metafoo.de>
References: <87egopk13d.wl%kuninori.morimoto.gx@renesas.com>
 <87a8zdk0tx.wl%kuninori.morimoto.gx@renesas.com>
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To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>, Mark Brown <broonie@kernel.org>
Cc: Linux-ALSA <alsa-devel@alsa-project.org>, Simon <horms@verge.net.au>, shiiba <naoya.shiiba.nx@renesas.com>, Liam Girdwood <lgirdwood@gmail.com>, Das Biju <biju.das@bp.renesas.com>
List-Id: alsa-devel@alsa-project.org

On 03/16/2015 05:45 AM, Kuninori Morimoto wrote:
> +sound {
> +	compatible = "renesas-dpcm-audio-card";

dpcm is a software component, the devicetree should describe the hardware.

> +
> +	card-name = "rsnd-ak4643";
> +	format = "left_j";
> +	bitclock-master = <&sndcodec>;
> +	frame-master = <&sndcodec>;
> +
> +	routing = "ak4642-hifi Playback", "DAI0 Playback",
> +		  "DAI0 Capture", "ak4642-hifi Capture";

This does not belong into the devicetree. These strings are all Linux driver 
specific.
[...]