ASoC: wcd: Remove non-essential current source votings from adc

Zdet current source is enabled for 4 pole aux cable and kept
even after plug removal. This increases voltage for both hph left and
right which causes error in cross-connection detection for subsequent plug
detections. Remove current source enablement from unrequired places.

CRs-Fixed: 2234559
Change-Id: Icffbca88f7a6873c509c91e31b494dd6d5d21cb9
Signed-off-by: Vatsal Bucha <[email protected]>

asoc/codecs/wcd-mbhc-v2.c

@@ -982,6 +982,8 @@ static void wcd_mbhc_swch_irq_handler(struct wcd_mbhc *mbhc)
 			jack_type = SND_JACK_HEADSET;
 			break;
 		case MBHC_PLUG_TYPE_HIGH_HPH:
+			if (mbhc->mbhc_detection_logic == WCD_DETECTION_ADC)
+			    WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_ISRC_EN, 0);
 			mbhc->is_extn_cable = false;
 			jack_type = SND_JACK_LINEOUT;
 			break;