linux-kernel - Re: [PATCH 1/3] ASoC: DaVinci: Added two clocking possibilities to McBSP (I2S)

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Date:	Thu, 1 Jul 2010 15:35:40 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Raffaele Recalcati <lamiaposta71@...il.com>
Cc:	davinci-linux-open-source@...ux.davincidsp.com,
	Raffaele Recalcati <raffaele.recalcati@...cino.it>,
	Davide Bonfanti <davide.bonfanti@...cino.it>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	Troy Kisky <troy.kisky@...ndarydevices.com>,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] ASoC: DaVinci: Added two clocking possibilities to
 McBSP (I2S)

On Wed, Jun 30, 2010 at 03:47:56PM +0200, Raffaele Recalcati wrote:

> +static int davinci_i2s_dai_set_clkdiv(struct snd_soc_dai *cpu_dai,
> +				int div_id, int div)
> +{
> +	struct davinci_mcbsp_dev *dev = cpu_dai->private_data;
> +	int srgr;
> +
> +	dev->clk_div = div;
> +	return 0;
> +}

As previously mentioned this should check the div_id argument.

> +	switch (master) {
> +	case SND_SOC_DAIFMT_CBS_CFS:

...

> +	case SND_SOC_DAIFMT_CBM_CFS:

...

> +	default:
> +		/* Clock and frame sync given from external sources */

The two remaining options (_CBM_CFM and _CBS_CFM) are different, your
description matches _CBM_CFM.

> +		if (master == SND_SOC_DAIFMT_CBS_CFS ||
> +				master == SND_SOC_DAIFMT_CBS_CFM) {

Switch statement again.

> +	if (master == SND_SOC_DAIFMT_CBS_CFS ||
> +			master == SND_SOC_DAIFMT_CBS_CFM) {
> +		rcr |= DAVINCI_MCBSP_RCR_RFRLEN1(0);
> +		xcr |= DAVINCI_MCBSP_XCR_XFRLEN1(0);
> +	} else {

...and another.  Please fix all these.
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