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From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
Subject: Re: [PATCH 1/3] ASoC: Add device tree binding for WM8770
Date: Tue, 30 Aug 2011 19:18:09 +0100
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To: Timur Tabi <timur-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Cc: "alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org" <alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>, "patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org" <patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>, Liam Girdwood <lrg-l0cyMroinI0@public.gmane.org>, "devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org" <devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>
List-Id: devicetree@vger.kernel.org

On Tue, Aug 30, 2011 at 01:15:07PM -0500, Timur Tabi wrote:

>  Note that I require a clock-frequency property to indicate the input clock
> frequency on the codec itself.

It's listed as optional in the binding (and would in general need to
be).