linux-kernel - Re: [PATCH Resend 7/8] ASoC: add snd_soc_of_parse_audio_simple

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Message-ID: <20140124130509.GY11727@sirena.org.uk>
Date:	Fri, 24 Jan 2014 13:05:09 +0000
From:	Mark Brown <broonie@...nel.org>
To:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
Cc:	"lgirdwood@...il.com" <lgirdwood@...il.com>,
	"shawn.guo@...aro.org" <shawn.guo@...aro.org>,
	"kuninori.morimoto.gx@...esas.com" <kuninori.morimoto.gx@...esas.com>,
	"moinejf@...e.fr" <moinejf@...e.fr>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH Resend 7/8] ASoC: add
 snd_soc_of_parse_audio_simple_widgets for DeviceTree

On Fri, Jan 24, 2014 at 02:46:33AM +0000, Li.Xiubo@...escale.com wrote:

> > > +static struct snd_soc_dapm_widget simple_widgets[] = {
> > > +	SND_SOC_DAPM_MIC("Mic", NULL),
> > > +	SND_SOC_DAPM_LINE("Line", NULL),
> > > +	SND_SOC_DAPM_HP("Hp", NULL),
> > > +	SND_SOC_DAPM_SPK("Spk", NULL),
> > > +};

> This is the templates for "Microphone XXX", "Line XXX", "Headphone XXX"
> and "Spk XXX" .

> > Does this mean we're restricted to a particular set of names?  That
> > seems sad and won't work if there's a desire for more than one of a
> > given widget - the main use case I can see is multiple microphones with
> > separate microphone biases.  How about having some templates that we
> > copy and then replace the name with the one the user supplied?

> This code has already supplied this I think.

OK, that's fine - this is one of the things that the lack of binding
documentation doesn't help with, it says what the code is supposed to
do.  When reviewing DT code without bindings I tend to just skim the
code.

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