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Commit ed10e07b authored by Yeleswarapu Nagaradhesh's avatar Yeleswarapu Nagaradhesh Committed by Gerrit - the friendly Code Review server
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ASoC: wcd-mbhc: enable micbias for special headset 



Enable micbias at 2.7v for special headset till
headset is removed, to avoid fake electrical removal interrupts.

CRs-Fixed: 982110
Change-Id: I6643973a3b506d7f920e611ca51f06df94cc5a94
Signed-off-by: default avatarYeleswarapu Nagaradhesh <nagaradh@codeaurora.org>
parent 1f1574bb

sound/soc/codecs/wcd-mbhc-v2.c

+26 −5
Original line number Diff line number Diff line
@@ -315,12 +315,17 @@ out_micb_en: 
			  mbhc->is_hs_recording);

		break;

	case WCD_EVENT_POST_MICBIAS_2_OFF:

		if (!mbhc->mbhc_cb->mbhc_micbias_control)

			mbhc->is_hs_recording = false;

		if (mbhc->micbias_enable) {

			wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);

			break;

		}



		if (mbhc->mbhc_cb->set_auto_zeroing)

			mbhc->mbhc_cb->set_auto_zeroing(codec, false);

		if (mbhc->mbhc_cb->set_micbias_value)

		if (mbhc->mbhc_cb->set_micbias_value && !mbhc->micbias_enable)

			mbhc->mbhc_cb->set_micbias_value(codec);

		if (!mbhc->mbhc_cb->mbhc_micbias_control)

			mbhc->is_hs_recording = false;

		/* Enable PULL UP if PA's are enabled */

		if ((test_bit(WCD_MBHC_EVENT_PA_HPHL, &mbhc->event_state)) ||

				(test_bit(WCD_MBHC_EVENT_PA_HPHR,
@@ -578,6 +583,10 @@ static void wcd_mbhc_report_plug(struct wcd_mbhc *mbhc, int insertion, 
				mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(

						mbhc->codec,

						MIC_BIAS_2, false);

			if (mbhc->mbhc_cb->set_micbias_value) {

				mbhc->mbhc_cb->set_micbias_value(mbhc->codec);

				WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MICB_CTRL, 0);

			}

			mbhc->micbias_enable = false;

		}
@@ -611,6 +620,12 @@ static void wcd_mbhc_report_plug(struct wcd_mbhc *mbhc, int insertion, 
					mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(

						mbhc->codec,

						MIC_BIAS_2, false);

				if (mbhc->mbhc_cb->set_micbias_value) {

					mbhc->mbhc_cb->set_micbias_value(

							mbhc->codec);

					WCD_MBHC_REG_UPDATE_BITS(

							WCD_MBHC_MICB_CTRL, 0);

				}

				mbhc->micbias_enable = false;

			}

			mbhc->hph_type = WCD_MBHC_HPH_NONE;
@@ -979,7 +994,7 @@ static bool wcd_is_special_headset(struct wcd_mbhc *mbhc) 
		mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,

				MBHC_COMMON_MICB_PRECHARGE,

				false);

	if (mbhc->mbhc_cb->set_micbias_value)

	if (mbhc->mbhc_cb->set_micbias_value && !mbhc->micbias_enable)

		mbhc->mbhc_cb->set_micbias_value(codec);

	if (mbhc->mbhc_cb->set_auto_zeroing)

		mbhc->mbhc_cb->set_auto_zeroing(codec, false);
@@ -1039,7 +1054,7 @@ static void wcd_enable_mbhc_supply(struct wcd_mbhc *mbhc, 
			wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);

	} else {

		if (plug_type == MBHC_PLUG_TYPE_HEADSET) {

			if (mbhc->is_hs_recording)

			if (mbhc->is_hs_recording || mbhc->micbias_enable)

				wcd_enable_curr_micbias(mbhc,

							WCD_MBHC_EN_MB);

			else if ((test_bit(WCD_MBHC_EVENT_PA_HPHL,
@@ -1192,6 +1207,9 @@ correct_plug_type: 
			if (mbhc->micbias_enable) {

				mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(

					mbhc->codec, MIC_BIAS_2, false);

				if (mbhc->mbhc_cb->set_micbias_value)

					mbhc->mbhc_cb->set_micbias_value(

							mbhc->codec);

				mbhc->micbias_enable = false;

			}

			goto exit;
@@ -1214,6 +1232,9 @@ correct_plug_type: 
			if (mbhc->micbias_enable) {

				mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(

					mbhc->codec, MIC_BIAS_2, false);

				if (mbhc->mbhc_cb->set_micbias_value)

					mbhc->mbhc_cb->set_micbias_value(

							mbhc->codec);

				mbhc->micbias_enable = false;

			}

			goto exit;