ASoC: cpcap: HACK: force on the PGA nodes in voice call

This is required for mic to function in earpiece/handset and headset
modes (headset won't output sound from the remote party yet)

The Headset Charge Pump is required for headset mode to work (with
output to headphones, mic from phone, not headset)

The ADC Left I just added because I think I saw it was necessary at some
point (once I had a call with no audio, and that was the only reg diff.)

sound/soc/codecs/cpcap.c

@@ -1473,6 +1473,49 @@ static int cpcap_voice_call(struct cpcap_audio *cpcap, struct snd_soc_dai *dai,
 	err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI,
 				 mask, voice_call ? mask : 0);
 
+	printk("VOICE CALL %i\n", voice_call);
+
+	if (voice_call)
+	{
+		struct snd_soc_dapm_widget *w;
+
+		w = snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK);
+
+		snd_soc_dai_activate(dai, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dapm_force_enable_pin(w->dapm, w->name);
+		snd_soc_dapm_force_enable_pin(w->dapm, "Voice PGA");
+		snd_soc_dapm_force_enable_pin(w->dapm, "Speaker Right PGA");
+		snd_soc_dapm_force_enable_pin(w->dapm, "Headset Left PGA");
+		snd_soc_dapm_force_enable_pin(w->dapm, "Headset Right PGA");
+		snd_soc_dapm_force_enable_pin(w->dapm, "Earpiece PGA");
+		snd_soc_dapm_force_enable_pin(w->dapm, "Microphone 1 PGA");
+		snd_soc_dapm_force_enable_pin(w->dapm, "Microphone 2 PGA");
+		snd_soc_dapm_force_enable_pin(w->dapm, "ADC Right");
+		snd_soc_dapm_force_enable_pin(w->dapm, "ADC Left");
+		snd_soc_dapm_force_enable_pin(w->dapm, "Headset Charge Pump");
+		snd_soc_dapm_sync(w->dapm);
+	}
+	else
+	{
+		struct snd_soc_dapm_widget *w;
+
+		w = snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK);
+
+		snd_soc_dai_deactivate(dai, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dapm_disable_pin(w->dapm, w->name);
+		snd_soc_dapm_disable_pin(w->dapm, "Voice PGA");
+		snd_soc_dapm_disable_pin(w->dapm, "Speaker Right PGA");
+		snd_soc_dapm_disable_pin(w->dapm, "Headset Left PGA");
+		snd_soc_dapm_disable_pin(w->dapm, "Headset Right PGA");
+		snd_soc_dapm_disable_pin(w->dapm, "Earpiece PGA");
+		snd_soc_dapm_disable_pin(w->dapm, "Microphone 1 PGA");
+		snd_soc_dapm_disable_pin(w->dapm, "Microphone 2 PGA");
+		snd_soc_dapm_disable_pin(w->dapm, "ADC Right");
+		snd_soc_dapm_disable_pin(w->dapm, "ADC Left");
+		snd_soc_dapm_disable_pin(w->dapm, "Headset Charge Pump");
+		snd_soc_dapm_sync(w->dapm);
+	}
+
 	return err;
 }