linux-kernel - Re: [PATCH 1/2] ARM: Dove: Add the audio devices in DT

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Date:	Thu, 29 Aug 2013 19:34:32 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Mark Brown <broonie@...nel.org>
Cc:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Mark Rutland <mark.rutland@....com>,
	Jean-Francois Moine <moinejf@...e.fr>,
	Jason Cooper <jason@...edaemon.net>,
	Pawel Moll <pawel.moll@....com>, devicetree@...r.kernel.org,
	Stephen Warren <swarren@...dotorg.org>,
	linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org,
	Ian Campbell <ian.campbell@...rix.com>,
	liam.r.girdwood@...el.com
Subject: Re: [PATCH 1/2] ARM: Dove: Add the audio devices in DT

On Thu, Aug 29, 2013 at 07:20:11PM +0100, Mark Brown wrote:
> On Thu, Aug 29, 2013 at 08:02:27PM +0200, Sebastian Hesselbarth wrote:
> > 
> > it is referring the same differences Russell already mentioned. But I
> > already came to the conclusion, that we don't need the information in
> > the binding. For example, if you use that controller on Dove and you
> > hook it up for SPDIF-in (which it hasn't), than I consider this a
> > DT bug. No need to double-check that in the driver. From that p-o-v,
> > please just let the current binding as is.
> 
> OK, great - none of these devices have any differences which are visible
> only within the controller, they're all extra external interfaces?

Dove Audio 0:
	- I2S in
	- I2S out
	- No SPDIF

Dove Audio 1:
	- I2S in
	- I2S out
	- SPDIF out only

Both these variants occur on the same SoC.

Kirkwood:
	- I2S in
	- SPDIF in
	- I2S out
	- SPDIF out

Preconditions:
1. Only one input can be used at any one time.
2. One output can be used or both if enabled simultaneously.
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