Re: [alsa-devel] [PATCH] ASoC: pcm512x: Implement the digital_mute interface

On Sat, Nov 24, 2018 at 10:05:42PM +0200, Dimitris Papavasiliou wrote:

+static int pcm512x_digital_playback_switch_get(struct snd_kcontrol *kcontrol,

• 			       struct snd_ctl_elem_value *ucontrol)
  

+{

• struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
• struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
• mutex_lock(&pcm512x->mutex);
• ucontrol->value.integer.value[0] = !(pcm512x->mute & 0x4);
• ucontrol->value.integer.value[1] = !(pcm512x->mute & 0x2);
• mutex_unlock(&pcm512x->mutex);
• return 0;

+}

Just remove the control, no need to jump through these hoops.