samsung-sm8650/android_kernel_samsung_sm8650-modules
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asoc: codecs: Fix button interrupts issue in rouleur

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Current source mode in rouleur does not work
properly leading to issues in button interrupts
and fake electrical removal interrupts.
Enable pull up mode instead of current source
mode to fix these issues. Modify the headset
max vref voltage to 1.7 volts and micbias
calculation logic.

Change-Id: If3e4a2fdcf080b07fe3c363b6eb6115f101b91f4
Signed-off-by: Aditya Bavanari <abavanar@codeaurora.org>
This commit is contained in:
Aditya Bavanari
2020-04-23 18:57:27 +05:30
committad av Gerrit - the friendly Code Review server
förälder 1db5a7d432
incheckning c3fd6cc305
6 ändrade filer med 118 tillägg och 19 borttagningar
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22
asoc/codecs/wcd-mbhc-adc.c
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@@ -33,16 +33,20 @@ static int wcd_mbhc_get_micbias(struct wcd_mbhc *mbhc)
int micbias = 0;
u8 vout_ctl = 0;
/* Read MBHC Micbias (Mic Bias2) voltage */
WCD_MBHC_REG_READ(WCD_MBHC_MICB2_VOUT, vout_ctl);
/* Formula for getting micbias from vout
* micbias = 1.0V + VOUT_CTL * 50mV
*/
micbias = 1000 + (vout_ctl * 50);
pr_debug("%s: vout_ctl: %d, micbias: %d\n",
__func__, vout_ctl, micbias);
if (mbhc->mbhc_cb->get_micbias_val) {
mbhc->mbhc_cb->get_micbias_val(mbhc, &micbias);
pr_debug("%s: micbias: %d\n", __func__, micbias);
} else {
/* Read MBHC Micbias (Mic Bias2) voltage */
WCD_MBHC_REG_READ(WCD_MBHC_MICB2_VOUT, vout_ctl);
/* Formula for getting micbias from vout
* micbias = 1.0V + VOUT_CTL * 50mV
*/
micbias = 1000 + (vout_ctl * 50);
pr_debug("%s: vout_ctl: %d, micbias: %d\n",
__func__, vout_ctl, micbias);
}
return micbias;
}