[alsa-devel] [PATCH v5 6/9] ASoC: mediatek: add mt2701 platform driver implementation.

Mark Brown broonie at kernel.org
Wed Jun 29 12:13:22 PDT 2016


On Fri, Jun 17, 2016 at 03:43:57PM +0800, Garlic Tseng wrote:

> +static int mt2701_afe_i2s_set_clkdiv(struct snd_soc_dai *dai, int div_id,
> +				     int div)
> +{

Why are we adding a set_clkdiv() operation?  I would expect the driver
to be able to figure things out automatically.

> +	case DIV_ID_MCLK_TO_BCK:
> +		afe_priv->i2s_path[i2s_num].div_mclk_to_bck = div;
> +		break;
> +	case DIV_ID_BCK_TO_LRCK:
> +		afe_priv->i2s_path[i2s_num].div_bck_to_lrck = div;
> +		break;

Especially in the case where we're configuring LRCLK, that's trivial
when we know the sample rate which we have to know anyway.
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