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Commit b50684da authored by Fabio Estevam's avatar Fabio Estevam Committed by Mark Brown
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ASoC: sgtl5000: Fix maximum value for microphone gain 



sgtl5000 microphone gain only has 2 bits of resolution, so maximum value is 3.

From Eric Nelson:
"We also found that for the microphones we have here (commodity PC boom mics) a
default value of 2 for the gain gives the best results."

So change the default microphone gain as well.

Signed-off-by: default avatarEric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent a49f0d1e

sound/soc/codecs/sgtl5000.c

+2 −2
Original line number Diff line number Diff line
@@ -401,7 +401,7 @@ static const struct snd_kcontrol_new sgtl5000_snd_controls[] = { 
			5, 1, 0),



	SOC_SINGLE_TLV("Mic Volume", SGTL5000_CHIP_MIC_CTRL,

			0, 4, 0, mic_gain_tlv),

			0, 3, 0, mic_gain_tlv),

};



/* mute the codec used by alsa core */
@@ -1344,7 +1344,7 @@ static int sgtl5000_probe(struct snd_soc_codec *codec) 
			SGTL5000_HP_ZCD_EN |

			SGTL5000_ADC_ZCD_EN);



	snd_soc_write(codec, SGTL5000_CHIP_MIC_CTRL, 0);

	snd_soc_write(codec, SGTL5000_CHIP_MIC_CTRL, 2);



	/*

	 * disable DAP