Re: [PATCH v5 02/15] ASoC: sun4i-i2s: Add set_tdm_slot functionality

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On Wed, Aug 14, 2019 at 08:08:41AM +0200, codekipper@xxxxxxxxx wrote:
> From: Marcus Cooper <codekipper@xxxxxxxxx>
> 
> Codecs without a control connection such as i2s based HDMI audio and
> the Pine64 DAC require a different amount of bit clocks per frame than

This isn't a universal property of CODECs without a control, and it's
something that CODECs with control can require too.

>  	return sun4i_i2s_set_clk_rate(dai, params_rate(params),
> -				      params_width(params));
> +				      i2s->tdm_slots ?
> +				      i2s->slot_width : params_width(params));

Please write normal conditional statements unless there's a strong
reason to do otherwise, it makes things more legible.

> +static int sun4i_i2s_set_dai_tdm_slot(struct snd_soc_dai *dai,
> +				      unsigned int tx_mask,
> +				      unsigned int rx_mask,
> +				      int slots, int width)
> +{
> +	struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai);
> +
> +	i2s->tdm_slots = slots;
> +
> +	i2s->slot_width = width;
> +
> +	return 0;
> +}

No validation of the parameters here?

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