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Date:	Thu, 20 Mar 2014 13:47:44 +0000
From:	Mark Brown <>
To:	Bo Shen <>
Cc:	<>,
	Boris BREZILLON <>,
	Rob Herring <>,
	Pawel Moll <>,
	"Mark Rutland" <>,
	Ian Campbell <>,
	Kumar Gala <>,
	Rob Landley <>, <>,
	<>, <>
Subject: Re: [PATCH 7/8] ASoC: atmel: document clock properties of the wm8904

On Thu, Mar 20, 2014 at 10:37:53AM +0800, Bo Shen wrote:

> For this, in my mind, I think we need add following parameters in DT.
> 1. sysclk_src_from_fll --> we need do nothing.

No, how would this work?  If nothing else the FLL needs configuration.

> 2. sysclk_src_from_mclk
>    2.1 use_external_xtal --> we need clock_frequency
>    2.2 !use_external_xtal --> we need retrieve clock and clock_frequency.

No, this is all handled in the clock binding.  If there's a fixed rate
clock the device tree should have a fixed rate clock provided.

> Does this acceptable? Or any other better suggestion for this?

Just have the device tree describe the hardware and provide a way of
specifying an optional MCLK.

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