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Commit 73cbdbfc authored by Rama Krishna Phani A's avatar Rama Krishna Phani A
Browse files

iio: rradc: Update charger die temperature coefficients 



Update slope and offset coefficients for charger die
temperature to compensate for temperature compensation
for PM660.

Change-Id: I7884acfdefede6aff2fe4cd3a5745dff0767b4fc
Signed-off-by: default avatarRama Krishna Phani A <rphani@codeaurora.org>
parent af883d4d

drivers/iio/adc/qcom-rradc.c

+79 −15
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -165,10 +165,19 @@ 


#define FAB_ID_GF				0x30

#define FAB_ID_SMIC				0x11

#define FAB_ID_660_GF				0x0

#define FAB_ID_660_TSMC				0x2

#define FAB_ID_660_MX				0x3

#define FG_ADC_RR_CHG_TEMP_GF_OFFSET_UV		1303168

#define FG_ADC_RR_CHG_TEMP_GF_SLOPE_UV_PER_C	3784

#define FG_ADC_RR_CHG_TEMP_SMIC_OFFSET_UV	1338433

#define FG_ADC_RR_CHG_TEMP_SMIC_SLOPE_UV_PER_C	3655

#define FG_ADC_RR_CHG_TEMP_660_GF_OFFSET_UV	1309001

#define FG_RR_CHG_TEMP_660_GF_SLOPE_UV_PER_C	3403

#define FG_ADC_RR_CHG_TEMP_660_SMIC_OFFSET_UV	1295898

#define FG_RR_CHG_TEMP_660_SMIC_SLOPE_UV_PER_C	3596

#define FG_ADC_RR_CHG_TEMP_660_MGNA_OFFSET_UV	1314779

#define FG_RR_CHG_TEMP_660_MGNA_SLOPE_UV_PER_C	3496

#define FG_ADC_RR_CHG_TEMP_OFFSET_MILLI_DEGC	25000

#define FG_ADC_RR_CHG_THRESHOLD_SCALE		4
@@ -388,23 +397,70 @@ static int rradc_post_process_die_temp(struct rradc_chip *chip, 
	return 0;

}



static int rradc_get_660_fab_coeff(struct rradc_chip *chip,

		int64_t *offset, int64_t *slope)

{

	switch (chip->pmic_fab_id->fab_id) {

	case FAB_ID_660_GF:

		*offset = FG_ADC_RR_CHG_TEMP_660_GF_OFFSET_UV;

		*slope = FG_RR_CHG_TEMP_660_GF_SLOPE_UV_PER_C;

		break;

	case FAB_ID_660_TSMC:

		*offset = FG_ADC_RR_CHG_TEMP_660_SMIC_OFFSET_UV;

		*slope = FG_RR_CHG_TEMP_660_SMIC_SLOPE_UV_PER_C;

		break;

	default:

		*offset = FG_ADC_RR_CHG_TEMP_660_MGNA_OFFSET_UV;

		*slope = FG_RR_CHG_TEMP_660_MGNA_SLOPE_UV_PER_C;

	}



	return 0;

}



static int rradc_get_8998_fab_coeff(struct rradc_chip *chip,

		int64_t *offset, int64_t *slope)

{

	switch (chip->pmic_fab_id->fab_id) {

	case FAB_ID_GF:

		*offset = FG_ADC_RR_CHG_TEMP_GF_OFFSET_UV;

		*slope = FG_ADC_RR_CHG_TEMP_GF_SLOPE_UV_PER_C;

		break;

	case FAB_ID_SMIC:

		*offset = FG_ADC_RR_CHG_TEMP_SMIC_OFFSET_UV;

		*slope = FG_ADC_RR_CHG_TEMP_SMIC_SLOPE_UV_PER_C;

		break;

	default:

		return -EINVAL;

	}



	return 0;

}



static int rradc_post_process_chg_temp_hot(struct rradc_chip *chip,

			struct rradc_chan_prop *prop, u16 adc_code,

			int *result_millidegc)

{

	int64_t uv = 0, offset = 0, slope = 0;

	int rc = 0;



	if (chip->revid_dev_node) {

		switch (chip->pmic_fab_id->fab_id) {

		case FAB_ID_GF:

			offset = FG_ADC_RR_CHG_TEMP_GF_OFFSET_UV;

			slope = FG_ADC_RR_CHG_TEMP_GF_SLOPE_UV_PER_C;

		switch (chip->pmic_fab_id->pmic_subtype) {

		case PM660_SUBTYPE:

			rc = rradc_get_660_fab_coeff(chip, &offset, &slope);

			if (rc < 0) {

				pr_err("Unable to get fab id coefficients\n");

				return -EINVAL;

			}

			break;

		case FAB_ID_SMIC:

			offset = FG_ADC_RR_CHG_TEMP_SMIC_OFFSET_UV;

			slope = FG_ADC_RR_CHG_TEMP_SMIC_SLOPE_UV_PER_C;

		case PMI8998_SUBTYPE:

			rc = rradc_get_8998_fab_coeff(chip, &offset, &slope);

			if (rc < 0) {

				pr_err("Unable to get fab id coefficients\n");

				return -EINVAL;

			}

			break;

		default:

			pr_err("No PMIC subtype found\n");

			return -EINVAL;

		}

	} else {
@@ -444,18 +500,26 @@ static int rradc_post_process_chg_temp(struct rradc_chip *chip, 
			int *result_millidegc)

{

	int64_t uv = 0, offset = 0, slope = 0;

	int rc = 0;



	if (chip->revid_dev_node) {

		switch (chip->pmic_fab_id->fab_id) {

		case FAB_ID_GF:

			offset = FG_ADC_RR_CHG_TEMP_GF_OFFSET_UV;

			slope = FG_ADC_RR_CHG_TEMP_GF_SLOPE_UV_PER_C;

		switch (chip->pmic_fab_id->pmic_subtype) {

		case PM660_SUBTYPE:

			rc = rradc_get_660_fab_coeff(chip, &offset, &slope);

			if (rc < 0) {

				pr_err("Unable to get fab id coefficients\n");

				return -EINVAL;

			}

			break;

		case FAB_ID_SMIC:

			offset = FG_ADC_RR_CHG_TEMP_SMIC_OFFSET_UV;

			slope = FG_ADC_RR_CHG_TEMP_SMIC_SLOPE_UV_PER_C;

		case PMI8998_SUBTYPE:

			rc = rradc_get_8998_fab_coeff(chip, &offset, &slope);

			if (rc < 0) {

				pr_err("Unable to get fab id coefficients\n");

				return -EINVAL;

			}

			break;

		default:

			pr_err("No PMIC subtype found\n");

			return -EINVAL;

		}

	} else {