Re: [PATCH v1 1/4] ASoC: codecs: pcm179x: Add PCM1789 id

Mylène Josserand
2018-03-01T07:43:21Z

Hello,

Thank you for the review.

On Tue, 27 Feb 2018 22:51:40 +0100
Thomas Petazzoni <thomas.petazzoni@bootlin.com> wrote:

> Hello,
>
> On Tue, 27 Feb 2018 22:24:30 +0100, Mylène Josserand wrote:
> > To prepare the support for the PCM1789, add a new compatible
> > and use the i2c_id to handle, later, the differences between
> > these two DACs even if they are pretty similar.
> >
> > Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
> > ---
> > Documentation/devicetree/bindings/sound/pcm179x.txt | 2 +-
>
> The DT binding change should be in a separate patch.
>
> > sound/soc/codecs/pcm179x-i2c.c | 6 ++++--
> > sound/soc/codecs/pcm179x.c | 3 ++-
> > sound/soc/codecs/pcm179x.h | 8 +++++++-
>
> And this should be together with the PCM1789 support patch. Otherwise
> your series is not bisectable: if we apply only PATCH 1/4, the driver
> supports the new compatible string, but it doesn't have the actual code
> to handle PCM1789. Am I missing something here ?

No, you are right, I will merge it with patch 02.

>
> > - return pcm179x_common_init(&client->dev, regmap);
> > + return pcm179x_common_init(&client->dev, regmap, id->driver_data);
>
> This can be done in a preparation patch.
>
> > }
> >
> > static const struct of_device_id pcm179x_of_match[] = {
> > { .compatible = "ti,pcm1792a", },
> > + { .compatible = "ti,pcm1789", },
> > { }
> > };
> > MODULE_DEVICE_TABLE(of, pcm179x_of_match);
> >
> > static const struct i2c_device_id pcm179x_i2c_ids[] = {
> > - { "pcm179x", 0 },
> > + { "pcm179x", PCM179X },
>
> And also this addition.
>
> > + { "pcm1789", PCM1789 },
> > { }
> > };
> > MODULE_DEVICE_TABLE(i2c, pcm179x_i2c_ids);
> > diff --git a/sound/soc/codecs/pcm179x.c b/sound/soc/codecs/pcm179x.c
> > index 4b311c06f97d..81cbf09319f6 100644
> > --- a/sound/soc/codecs/pcm179x.c
> > +++ b/sound/soc/codecs/pcm179x.c
> > @@ -218,7 +218,8 @@ static const struct snd_soc_component_driver soc_component_dev_pcm179x = {
> > .non_legacy_dai_naming = 1,
> > };
> >
> > -int pcm179x_common_init(struct device *dev, struct regmap *regmap)
> > +int pcm179x_common_init(struct device *dev, struct regmap *regmap,
> > + enum pcm17xx_type type)
>
> And this done.
>
> > {
> > struct pcm179x_private *pcm179x;
> >
> > diff --git a/sound/soc/codecs/pcm179x.h b/sound/soc/codecs/pcm179x.h
> > index cf8681c9a373..8c08689e3b8b 100644
> > --- a/sound/soc/codecs/pcm179x.h
> > +++ b/sound/soc/codecs/pcm179x.h
> > @@ -17,11 +17,17 @@
> > #ifndef __PCM179X_H__
> > #define __PCM179X_H__
> >
> > +enum pcm17xx_type {
> > + PCM179X,
>
> And this one.
>
> > + PCM1789,
> > +};
> > +
> > #define PCM1792A_FORMATS (SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE | \
> > SNDRV_PCM_FMTBIT_S16_LE)
> >
> > extern const struct regmap_config pcm179x_regmap_config;
> >
> > -int pcm179x_common_init(struct device *dev, struct regmap *regmap);
> > +int pcm179x_common_init(struct device *dev, struct regmap *regmap,
> > + enum pcm17xx_type type);
>
> And this one. Just as a "preparation patch" to support multiple codecs
> in the existing pcm179x.c driver.
>
> Thanks!
>
> Thomas

Thanks,

Mylène

--
Mylène Josserand, Bootlin (formerly Free Electrons)