Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 75e00574 authored by Siddartha Mohanadoss's avatar Siddartha Mohanadoss
Browse files

hwmon: qpnp-adc-voltage: Modify temperature compensation 



Apply temperature compensation to minimum(die_temp, 60degC)
for vbatt compensation. For OCV temperature compensation
apply the compensation based on the die_temp for the
corresponding PMIC. The temperature compensation is
required on top of gain/offset calibration to compensate
for variations due to chip revision, manufacturer and
temperature.

Change-Id: I0826993ddebe7dae2f033d995fa1266f9509002c
Signed-off-by: default avatarSiddartha Mohanadoss <smohanad@codeaurora.org>
parent 16103798

drivers/hwmon/qpnp-adc-voltage.c

+12 −31
Original line number Diff line number Diff line
@@ -539,32 +539,22 @@ static int32_t qpnp_ocv_comp(int64_t *result, 
	if (version == -EINVAL)

		return 0;



	if (version == QPNP_REV_ID_8110_2_0) {

		if (die_temp < -20000)

			die_temp = -20000;

	} else if (version == QPNP_REV_ID_8026_2_2) {

	if (version == QPNP_REV_ID_8026_2_2) {

		if (die_temp > 25000)

			return 0;

	} else {

		if (die_temp < 25000)

			return 0;

		if (die_temp > 60000)

			die_temp = 60000;

	}



	switch (version) {

	case QPNP_REV_ID_8941_3_1:

		switch (vadc->id) {

		case COMP_ID_TSMC:

			temp_var = (((die_temp *

			(-QPNP_VBAT_COEFF_4))

			+ QPNP_VBAT_COEFF_5));

			 temp_var = ((die_temp - 25000) *

			(-QPNP_VBAT_COEFF_4));

			break;

		default:

		case COMP_ID_GF:

			temp_var = (((die_temp *

			(-QPNP_VBAT_COEFF_1))

			+ QPNP_VBAT_COEFF_2));

			temp_var = ((die_temp - 25000) *

			(-QPNP_VBAT_COEFF_1));

			break;

		}

		break;
@@ -621,9 +611,6 @@ static int32_t qpnp_ocv_comp(int64_t *result, 
				temp_var = QPNP_VBAT_COEFF_19;

			temp_var = (die_temp - 25000) * temp_var;

			break;

		case COMP_ID_TSMC:

			pr_debug("No TSMC Comp Info, exiting\n");

			return 0;

		default:

		case COMP_ID_GF:

			*result -= QPNP_OCV_OFFSET_GF;
@@ -663,12 +650,7 @@ static int32_t qpnp_vbat_sns_comp(int64_t *result, 
	if (version == -EINVAL)

		return 0;



	if (version == QPNP_REV_ID_8110_2_0) {

		if (die_temp < -20000)

			die_temp = -20000;

	} else {

		if (die_temp < 25000)

			return 0;

	if (version != QPNP_REV_ID_8941_3_1) {

		/* min(die_temp_c, 60_degC) */

		if (die_temp > 60000)

			die_temp = 60000;
@@ -678,14 +660,16 @@ static int32_t qpnp_vbat_sns_comp(int64_t *result, 
	case QPNP_REV_ID_8941_3_1:

		switch (vadc->id) {

		case COMP_ID_TSMC:

			temp_var = (die_temp *

			temp_var = ((die_temp - 25000) *

			(-QPNP_VBAT_COEFF_1));

			break;

		default:

		case COMP_ID_GF:

			temp_var = (((die_temp *

			(-QPNP_VBAT_COEFF_6))

			+ QPNP_VBAT_COEFF_7));

			/* min(die_temp_c, 60_degC) */

			if (die_temp > 60000)

				die_temp = 60000;

			temp_var = ((die_temp - 25000) *

			(-QPNP_VBAT_COEFF_1));

			break;

		}

		break;
@@ -737,9 +721,6 @@ static int32_t qpnp_vbat_sns_comp(int64_t *result, 
			temp_var = ((die_temp - 25000) *

			(QPNP_VBAT_COEFF_17));

			break;

		case COMP_ID_TSMC:

			pr_debug("No TSMC Comp Info, exiting\n");

			return 0;

		default:

		case COMP_ID_GF:

			*result -= QPNP_VBAT_OFFSET_GF;