Re: [PATCH 2/3] ASoC: tlv320aic32x4: add support for TAS2505

[Claudius Heine]

On 2021-06-15 14:22, Mark Brown wrote:
> On Tue, Jun 15, 2021 at 11:49:31AM +0200, Claudius Heine wrote:
>
> > +static int aic32x4_tas2505_spkdrv_putvol(struct snd_kcontrol *kcontrol,
> > +	struct snd_ctl_elem_value *ucontrol)
> > +{
> > +	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
> > +	struct soc_mixer_control *mc =
> > +		(struct soc_mixer_control *)kcontrol->private_value;
> > +	u8 val;
> > +
> > +	val = (ucontrol->value.integer.value[0] & 0x7f);
> > +	val = mc->invert ? mc->max - val : val;
> > +	val = (val < 0) ? 0 : val;
> > +	snd_soc_component_write(component, TAS2505_SPKVOL1, val);
> > +
> > +	return 0;
> > +}
>
> Controls should return a boolean indicating if they changed their value
> when written.  Other than the hard coded register what's device specific
> here?  It looks like a normal control with a maximum value, it is
> unclear why this is being open coded.

Well probably because I didn't knew any better. Will look into it. Thx!

> > +	SOC_DOUBLE_R_S_TLV("HP Driver Gain Playback Volume", AIC32X4_HPLGAIN,
> > +			AIC32X4_HPLGAIN, 0, -0x6, 0x1d, 5, 0,
> > +			tlv_driver_gain),
>
> Drop the Gain.  See control-names.rst.

Ok.

Thanks!
Claudius