linux-kernel - Re: [PATCH v3 4/4] ASoC: simple-card: Add DT documentation for multi-DAI links

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Date:	Wed, 19 Mar 2014 13:46:25 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Jyri Sarha <jsarha@...com>
Cc:	Jean-Francois Moine <moinejf@...e.fr>,
	<alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	<linux-kernel@...r.kernel.org>, Xiubo Li <Li.Xiubo@...escale.com>
Subject: Re: [PATCH v3 4/4] ASoC: simple-card: Add DT documentation for
 multi-DAI links

On Wed, Mar 19, 2014 at 12:08:55PM +0200, Jyri Sarha wrote:

> While we are at it we could update the bitclock-master and frame-master
> syntax to be like this:

> bitclock-master = "cpu"
> frame-master = "codec"

> With the above explicit definition all the daifmt settings could be defined
> in link level. For backwards compatibility we could still define that
> omitting the value equals "codec" and omitting the property equals "cpu".

It seems it'd be a bit more idiomatic to do that with a phandle rather
than with a string in order to allow extensions for things like TDM (the
I2S to mono speaker driver use case for example).

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