[PATCH v3 2/2] ASoC: qcom: sc7180: Modify machine driver for 2mic

[Tzung-Bi Shih]

On Mon, Nov 2, 2020 at 2:24 PM Ajye Huang <ajye.huang at gmail.com> wrote:
>
> In addition, having mixer control to switch between DMICs by
> using "dmic-gpios" property.
>
> Refer to this one as an example,
> commit b7a742cff3f6 ("ASoC: AMD: Use mixer control to switch between DMICs")
>
> Signed-off-by: Ajye Huang <ajye_huang at compal.corp-partner.google.com>

I am not sure if it would be better if you use another email (e.g.
@gmail) for signoff.

> +static int dmic_get(struct snd_kcontrol *kcontrol,
> +                   struct snd_ctl_elem_value *ucontrol)
> +{
> +       struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
> +       struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
> +
> +       if (data)

You don't need to check for NULL.  If snd_soc_card_get_drvdata()
returns NULL, it shouldn't run into here.  See other
snd_soc_card_get_drvdata() calls in the file.

> +static int dmic_set(struct snd_kcontrol *kcontrol,
> +                   struct snd_ctl_elem_value *ucontrol)
> +{
> +       struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
> +       struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
> +
> +       if (data) {

Ditto.

> +               if (IS_ERR(data->dmic_sel)) {
> +                       dev_err(&pdev->dev, "DMIC gpio failed err=%d\n",
> +                               PTR_ERR(data->dmic_sel));
> +                               return PTR_ERR(data->dmic_sel);

Remove 1 level indent.