Re: [PATCH] ASoC: Add PCM1681 codec driver.

[Marek Belisko]

Hi Mark,
On 06/26/2013 04:30 PM, Mark Brown wrote:
> On Wed, Jun 26, 2013 at 03:05:28PM +0200, Marek Belisko wrote:
>
> > +#define PCM1681_ATT_CONTROL(X)	(X <= 6 ? X : X + 9) /* Attenuation level */
>
> Write a function for this.
This macro is used when creating controls for channels volume so this 
cannot be rewritten to function. I also thinking about updating macro 
name to PCM1681_CHANNEL_VOL(X).
> > +static bool pcm1681_writeable_reg(struct device *dev, unsigned register reg)
> > +{
> > +	return pcm1681_accessible_reg(dev, reg) &&
> > +		(reg != PCM1681_ZERO_DETECT_STATUS);
> > +}
>
> > +static int pcm1681_digital_mute(struct snd_soc_dai *dai, int mute)
> > +{
> > +	struct snd_soc_codec *codec = dai->codec;
> > +	struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
> > +	int ret, val = 0;
> > +
> > +	if (mute)
> > +		val = PCM1681_SOFT_MUTE_ALL;
> > +
>
> This would be clearer if written as an if .. else - otherwise it looks
> like an uninitalised value might be used.
OK.
> > +static int pcm1681_hw_params(struct snd_pcm_substream *substream,
> > +			     struct snd_pcm_hw_params *params,
> > +			     struct snd_soc_dai *dai)
> > +{
> > +	struct snd_soc_codec *codec = dai->codec;
> > +	struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
> > +	int val = 0;
> > +	int pcm_format = params_format(params);
> > +
> > +	priv->rate = params_rate(params);
> > +
>
> Shouldn't there be a call to set the deemphasis here?
Right. I'll add it here.
> > +static int pcm1681_probe(struct snd_soc_codec *codec)
> > +{
> > +	return 0;
> > +}
> > +
> > +static int pcm1681_remove(struct snd_soc_codec *codec)
> > +{
> > +	return 0;
> > +}
>
> Remove empty functions.
Will do.
>

Thanks,

marek

--
Marek Belisko

Software Developer
StreamUnlimited Engineering GmbH
Gutheil Schodergasse 8-12
A-1100 Vienna, Austria

Office: +421 267200087

e-mail: marek.belisko@xxxxxxxxxxxxxxxxxxx
http://www.streamunlimited.com

Meet us at:

IFA - Berlin, 6-11 September
CEDIA - Denver, 25-28 September
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/