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Commit 10b913fa authored by Phani Kumar Uppalapati's avatar Phani Kumar Uppalapati
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ASoC: wcd9xxx: Update valid delta threshold when plug type is HIGH_HPH 



Whenever plug type is classified as HIGH_HPH during successive DCE
measurements, it is observed that the difference min and max measured
mic voltage will be above 10mv for a current source. Update this valid
threshold limit to 80mv so that plug type cannot be classified as invalid.

CRs-fixed: 566579
Change-Id: I0a87ad58161646f4c94da601a8ec6ffc3f1b06c8
Signed-off-by: default avatarPhani Kumar Uppalapati <phaniu@codeaurora.org>
parent 6badacdb

sound/soc/codecs/wcd9xxx-mbhc.c

+6 −3
Original line number Diff line number Diff line
@@ -1308,6 +1308,7 @@ wcd9xxx_cs_find_plug_type(struct wcd9xxx_mbhc *mbhc, 
	const struct wcd9xxx_mbhc_plug_type_cfg *plug_type =

	    WCD9XXX_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration);

	s16 hs_max, no_mic, dce_z;

	int highhph_cnt = 0;



	pr_debug("%s: enter\n", __func__);

	pr_debug("%s: event_state 0x%lx\n", __func__, event_state);
@@ -1332,9 +1333,10 @@ wcd9xxx_cs_find_plug_type(struct wcd9xxx_mbhc *mbhc, 
		d->_vdces = vdce;

		if (d->_vdces < no_mic)

			d->_type = PLUG_TYPE_HEADPHONE;

		else if (d->_vdces >= hs_max)

		else if (d->_vdces >= hs_max) {

			d->_type = PLUG_TYPE_HIGH_HPH;

		else

			highhph_cnt++;

		} else

			d->_type = PLUG_TYPE_HEADSET;



		pr_debug("%s: DCE #%d, %04x, V %04d(%04d), HPHL %d TYPE %d\n",
@@ -1369,7 +1371,8 @@ wcd9xxx_cs_find_plug_type(struct wcd9xxx_mbhc *mbhc, 
		goto exit;

	}



	delta_thr = highhph ? WCD9XXX_MB_MEAS_DELTA_MAX_MV :

	delta_thr = ((highhph_cnt == sz) || highhph) ?

			      WCD9XXX_MB_MEAS_DELTA_MAX_MV :

			      WCD9XXX_CS_MEAS_DELTA_MAX_MV;



	for (i = 0, d = dt; i < sz; i++, d++) {