[alsa-devel] [PATCH v5 2/2] ASoC: da7210: Add support for ALC and Noise suppression

[Ashish Chavan]

> > +       if (ucontrol->value.integer.value[0]) {
> > +               /* Check if noise suppression is enabled */
> > +               if (snd_soc_read(codec, DA7210_CONTROL) & DA7210_NOISE_SUP_EN) {
> > +                       dev_dbg(codec->dev,
> > +                               "Disable noise suppression to enable ALC\n");
> > +                       return -EPERM;
> 
> -EINVAL
> 
> 
> > +               /* Check ZC for HP and AUX1 PGA */
> > +               if ((snd_soc_read(codec, DA7210_ZERO_CROSS) &
> > +                       (DA7210_AUX1_L_ZC | DA7210_AUX1_R_ZC | DA7210_HP_L_ZC |
> > +                       DA7210_HP_R_ZC)) != 0xc3)
> 
> It may be clearer if you don't use the magic number here and specify
> the bits you are checking.
> 
> > +       /* If all conditions are met or we are actually disabling Noise sup */
> > +       return snd_soc_put_volsw(kcontrol, ucontrol);
> > +
> > +err:
> > +       return -EPERM;
> 
> -EINVAL
> 

Thanks. Updating and reposting the patch set.