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

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Date:	Thu, 29 Aug 2013 11:38:48 +0200
From:	Jean-Francois Moine <moinejf@...e.fr>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Jason Cooper <jason@...edaemon.net>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, Russell King <linux@....linux.org.uk>,
	Ian Campbell <ian.campbell@...rix.com>,
	Pawel Moll <pawel.moll@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	linux-kernel@...r.kernel.org, Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH 1/2] ARM: Dove: Add the audio devices in DT

On Wed, 28 Aug 2013 23:49:12 +0400
Sergei Shtylyov <sergei.shtylyov@...entembedded.com> wrote:

> > diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
> > index 499abad..78227e2 100644
> > --- a/arch/arm/boot/dts/dove.dtsi
> > +++ b/arch/arm/boot/dts/dove.dtsi
> > @@ -573,6 +573,24 @@
> >   					phy-handle = <&ethphy>;
> >   				};
> >   			};
> > +
> > +			i2s0: audio-controller@...00 {  
> 
>      According to ePAPR [1] the node should be called "sound", not 
> "audio-controller".
> 
> > +				compatible = "marvell,mvebu-audio";
> > +				reg = <0xb0000 0x2210>;
> > +				interrupts = <19>, <20>;
> > +				clocks = <&gate_clk 12>;
> > +				clock-names = "internal";
> > +				status = "disabled";
> > +			};

AFAIK, "sound" describes the global audio subsystem. For the Cubox,
this will be done by something like:

	sound {
		compatible = "simple-audio";
		audio-controller = <&i2s1>;
		audio-codec = <&spdif>;
		codec-dai-name = "dit-hifi";
	};

-- 
Ken ar c'hentañ	|	      ** Breizh ha Linux atav! **
Jef		|		http://moinejf.free.fr/
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