linux-kernel - Re: [alsa-devel] [PATCH v2 RESEND 2/2] mfd: arizona: Update DT binding to support OUTn_MONO init

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Message-ID: <20150120164418.GC14516@opensource.wolfsonmicro.com>
Date:	Tue, 20 Jan 2015 16:44:18 +0000
From:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	Mark Brown <broonie@...nel.org>,
	Inha Song <ideal.song@...sung.com>, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	sameo@...ux.intel.com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: Re: [alsa-devel] [PATCH v2 RESEND 2/2] mfd: arizona: Update DT
	binding to support OUTn_MONO init_data

On Tue, Jan 20, 2015 at 04:02:48PM +0000, Lee Jones wrote:
> On Tue, 20 Jan 2015, Mark Brown wrote:
> 
> > On Tue, Jan 20, 2015 at 12:20:05PM +0000, Lee Jones wrote:
> > > On Fri, 02 Jan 2015, Inha Song wrote:
> > 
> > > > This patch update DT binding to support OUTn_MONO init_data. Each
> > > > output signal can be configurated as a mono differential output.
> > > > The mono differential configuration is selected using the OUTn_MONO
> > > > registers.
> > 
> > > This requires a DT Ack and an entry in the example.
> > 
> > The DT maintainers have said they're OK with maintainers just merging
> > things if they're comfortable with it (see the bindings specific
> > submitting-patches.txt) and given their workload and general resulting
> > responsiveness it's going to make it difficult go get anything done.
> 
> I only tend to poke the DT guys when I am unsure of something in the
> binding.  In this case it was a doubt whether we should be encoding
> register values inside a property like this.
> 
> I would also be happy to take it with your Ack if you're happy with
> it?

In this case really it is a boolean indicating if the
corresponding output is mono or not. It is handled thusly in the
code:

		if (arizona->pdata.out_mono[i])
			val = ARIZONA_OUT1_MONO;
		else
			val = 0;

Perhaps some further wording tweaks on the Documentation patch
would be appropriate, but certainly I am happy enough with the
binding.

Thanks,
Charles
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