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Commit 37f1ae92 authored by Bhalchandra Gajare's avatar Bhalchandra Gajare
Browse files

ASoC: msm8x10-wcd: Pull TX2 to micbias whenever micbias is enabled 



It is noticed that the headset mic has a buzz whenever micbias is
enabled. To reduce this buzz, always pull up the TX2 (headset)
microphone front end to micbias.

CRs-fixed: 526901
Change-Id: Id007a4c34c68aea0d0e01743d3e7aa8ca09fd5f7
Signed-off-by: default avatarBhalchandra Gajare <gajare@codeaurora.org>
parent 0693d098

sound/soc/codecs/msm8x10-wcd.c

+5 −0
Original line number Diff line number Diff line
@@ -1607,6 +1607,9 @@ static int msm8x10_wcd_codec_enable_micbias(struct snd_soc_dapm_widget *w, 
			snd_soc_update_bits(codec, micb_int_reg, 0x10, 0x10);

		else if (strnstr(w->name, internal3_text, 30))

			snd_soc_update_bits(codec, micb_int_reg, 0x2, 0x2);



		/* Always pull up TxFe for TX2 to Micbias */

		snd_soc_update_bits(codec, micb_int_reg, 0x04, 0x04);

		break;

	case SND_SOC_DAPM_POST_PMU:

		usleep_range(20000, 20100);
@@ -1624,6 +1627,8 @@ static int msm8x10_wcd_codec_enable_micbias(struct snd_soc_dapm_widget *w, 
		else if (strnstr(w->name, internal3_text, 30))

			snd_soc_update_bits(codec, micb_int_reg, 0x2, 0x0);



		/* Disable pull up TxFe for TX2 to Micbias */

		snd_soc_update_bits(codec, micb_int_reg, 0x04, 0x00);

		break;

	}

	return 0;