linux-kernel - Re: [PATCH 2/2] Documentation: omap-twl4030: Remove ti,codec property

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Date:	Fri, 13 Mar 2015 13:48:46 +0200
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Arnd Bergmann <arnd@...db.de>, Marek Belisko <marek@...delico.com>
CC:	<bcousson@...libre.com>, <tony@...mide.com>, <eballetbo@...il.com>,
	<javier@...hile0.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <jarkko.nikula@...mer.com>,
	<hns@...delico.com>
Subject: Re: [PATCH 2/2] Documentation: omap-twl4030: Remove ti,codec property

On 03/13/2015 01:05 PM, Arnd Bergmann wrote:
> On Thursday 12 March 2015 22:14:59 Marek Belisko wrote:
>> diff --git a/Documentation/devicetree/bindings/sound/omap-twl4030.txt b/Documentation/devicetree/bindings/sound/omap-twl4030.txt
>> index 1ab6bc8..656165f 100644
>> --- a/Documentation/devicetree/bindings/sound/omap-twl4030.txt
>> +++ b/Documentation/devicetree/bindings/sound/omap-twl4030.txt
>> @@ -4,7 +4,6 @@ Required properties:
>>  - compatible: "ti,omap-twl4030"
>>  - ti,model: Name of the sound card (for example "omap3beagle")
>>  - ti,mcbsp: phandle for the McBSP node
>> -- ti,codec: phandle for the twl4030 audio node
> 
> As this was a required property, are you sure that no other operating system
> uses it?
> 
> Even if not, you should probably change it to be an optional property, so
> that the existing dtbs do not become noncompliant after the change.

After I sent my Ack, I also started to think about the same thing. It is
better to change it to optional.

-- 
Péter
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