Re: [PATCH v1 2/4] ASoC: codecs: pcm179x: Add support for PCM1789

Thomas Petazzoni
2018-02-27T21:56:33Z

Hello,

On Tue, 27 Feb 2018 22:24:31 +0100, Mylène Josserand wrote:

> diff --git a/sound/soc/codecs/pcm179x-i2c.c b/sound/soc/codecs/pcm179x-i2c.c
> index 795a0657c097..83a2e1508df8 100644
> --- a/sound/soc/codecs/pcm179x-i2c.c
> +++ b/sound/soc/codecs/pcm179x-i2c.c
> @@ -26,10 +26,13 @@
> static int pcm179x_i2c_probe(struct i2c_client *client,
> const struct i2c_device_id *id)
> {
> - struct regmap *regmap;
> + struct regmap *regmap = NULL;

I don't think this change is useful, since regmap is always initialized
below anyway.

> + if (mute)
> + val = ~(PCM1789_MUTE_L_EN | PCM1789_MUTE_R_EN);

That's not really useful with regmap_update_bits() which already does
the masking, no?

> + else
> + val = PCM1789_MUTE_L_EN | PCM1789_MUTE_R_EN;
> + ret = regmap_update_bits(priv->regmap, PCM1789_SOFT_MUTE,
> + PCM1789_MUTE_MASK, val);

Couldn't this be:

if (mute)
val = 0;
else
val = PCM1789_MUTE_MASK;

ret = regmap_update_bits(priv->regmap, PCM1789_SOFT_MUTE,
PCM1789_MUTE_MASK, val);

> +static struct snd_soc_dai_driver pcm1789_dai = {
> + .name = "pcm1789-hifi",
> + .playback = {
> + .stream_name = "Playback",
> + .channels_min = 2,
> + .channels_max = 2,
> + .rates = SNDRV_PCM_RATE_CONTINUOUS,
> + .rate_min = 10000,
> + .rate_max = 200000,
> + .formats = PCM1792A_FORMATS, },

Nit: the closing curly brace should be on a separate line.

> + if (type == PCM1789)
> + return devm_snd_soc_register_component(dev,
> + &soc_component_dev_pcm1789,
> + &pcm1789_dai, 1);
> +

Perhaps a "else" here ?

> return devm_snd_soc_register_component(dev,
> &soc_component_dev_pcm179x, &pcm179x_dai, 1);

Thanks!

Thomas
--
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)