linux-kernel - Re: [PATCH] ASoC: samsung: Add 'mclk' handling for Snow sound-card driver

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Message-ID: <20140520111600.GL12304@sirena.org.uk>
Date:	Tue, 20 May 2014 12:16:00 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Tushar Behera <tushar.behera@...aro.org>
Cc:	alsa-devel@...a-project.org, linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-doc@...r.kernel.org, lgirdwood@...il.com, robh+dt@...nel.org,
	sbkim73@...sung.com, rdunlap@...radead.org, dianders@...omium.org,
	t.figa@...sung.com
Subject: Re: [PATCH] ASoC: samsung: Add 'mclk' handling for Snow sound-card
 driver

On Tue, May 20, 2014 at 09:55:42AM +0530, Tushar Behera wrote:
> For audio to work on Snow board, we need the codec master clock 'mclk'
> to be properly configured.
> 
> Currently XCLKOUT is configured as 'mclk' for codec chip and it is
> required to be clocked at 24MHz for the codec to work properly.
> 
> Add appropriate clock handling within Snow sound-card driver to set
> 'mclk' to operate at 24MHz.

The clock here is connected to the CODEC on the board so it should be
connected to the CODEC in the device tree too.

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