Re: [PATCH 1/2] ASoC: ak4613: add use CTRL2::CKS = 00

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On Thu, Jun 15, 2017 at 12:39:40AM +0000, Kuninori Morimoto wrote:

> ak4613 CTRL2::CKS controls Speed Mode (Normal/Double/Quad) for Master
> Mode. In default, Normal Mode uses 512fs, but in such case, requested
> input clock for all mode will be same. Then, it might not be eble to
> support correct output if input clock was not enough.
> This patch uses 256fs, and reduse requested imput clock for Noral Mode.

>  	snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
> -	snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);
> +
> +	/* CKS = 00 */
> +	snd_soc_update_bits(codec, CTRL2, (CKS_MASK | DFS_MASK), ctrl2);

This looks board specific - shouldn't we be setting the speed mode based
on a combination of the sampling rate and the master clock for the
device?  

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