Hi Daniel
> The simple-card driver currently accepts a clock node in the cpu dai
> sub-node and only uses it as an alternative to the
> 'system-clock-frequency' property to get the current frequency.
>
> This patch adds another use of the passed clock node. If mclk-fs is
> specified, the clock will be set to the calculated rate (stream rate *
> mclk_fs) in hw_params. This allows platforms to pass a tuneable clock
> as phandle that will automatically be set to the right rates.
>
> Signed-off-by: Daniel Mack <daniel@xxxxxxxxxx>
> ---
(snip)
> if (mclk_fs) {
> mclk = params_rate(params) * mclk_fs;
> +
> + if (dai_props->cpu_dai.clk)
> + clk_set_rate(dai_props->cpu_dai.clk, mclk);
> +
> ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
> SND_SOC_CLOCK_IN);
> if (ret && ret != -ENOTSUPP)
Having codec is nice balance ?
Best regards
---
Kuninori Morimoto
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