[alsa-devel] [RFC PATCH] ASoC: sgtl5000: interconnect ADC with Mic Bias

[Hector Palacios]

The interconnection of the Mic Bias to the ADC allows to
control the Mic Bias Output Impedance.
Without it, recording from a PC microphone results in silence.

Signed-off-by: Hector Palacios <hector.palacios at digi.com>
---
 sound/soc/codecs/sgtl5000.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index ea47938..60d5012 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -231,6 +231,7 @@ static const struct snd_soc_dapm_route sgtl5000_dapm_routes[] = {
 	{"Capture Mux", "MIC_IN", "MIC_IN"},	/* mic_in --> adc_mux */
 
 	{"ADC", NULL, "VAG_POWER"},
+	{"ADC", NULL, "Mic Bias"},
 	{"ADC", NULL, "Capture Mux"},		/* adc_mux --> adc */
 	{"AIFOUT", NULL, "ADC"},		/* adc --> i2s_out */