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iio: rradc: Update charger die temperature coefficients

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

Change-Id: I7884acfdefede6aff2fe4cd3a5745dff0767b4fc
Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>
This commit is contained in:
Rama Krishna Phani A 2017-01-27 11:21:08 +05:30
parent af883d4db0
commit 73cbdbfcb9
1 changed files with 79 additions and 15 deletions
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94
drivers/iio/adc/qcom-rradc.c
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@ -1,5 +1,5 @@
/* /*
* 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 * 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 * 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_GF 0x30
#define FAB_ID_SMIC 0x11 #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_OFFSET_UV 1303168
#define FG_ADC_RR_CHG_TEMP_GF_SLOPE_UV_PER_C 3784 #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_OFFSET_UV 1338433
#define FG_ADC_RR_CHG_TEMP_SMIC_SLOPE_UV_PER_C 3655 #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_TEMP_OFFSET_MILLI_DEGC 25000
#define FG_ADC_RR_CHG_THRESHOLD_SCALE 4 #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; 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, static int rradc_post_process_chg_temp_hot(struct rradc_chip *chip,
struct rradc_chan_prop *prop, u16 adc_code, struct rradc_chan_prop *prop, u16 adc_code,
int *result_millidegc) int *result_millidegc)
{ {
int64_t uv = 0, offset = 0, slope = 0; int64_t uv = 0, offset = 0, slope = 0;
int rc = 0;
if (chip->revid_dev_node) { if (chip->revid_dev_node) {
switch (chip->pmic_fab_id->fab_id) { switch (chip->pmic_fab_id->pmic_subtype) {
case FAB_ID_GF: case PM660_SUBTYPE:
offset = FG_ADC_RR_CHG_TEMP_GF_OFFSET_UV; rc = rradc_get_660_fab_coeff(chip, &offset, &slope);
slope = FG_ADC_RR_CHG_TEMP_GF_SLOPE_UV_PER_C; if (rc < 0) {
pr_err("Unable to get fab id coefficients\n");
return -EINVAL;
}
break; break;
case FAB_ID_SMIC: case PMI8998_SUBTYPE:
offset = FG_ADC_RR_CHG_TEMP_SMIC_OFFSET_UV; rc = rradc_get_8998_fab_coeff(chip, &offset, &slope);
slope = FG_ADC_RR_CHG_TEMP_SMIC_SLOPE_UV_PER_C; if (rc < 0) {
pr_err("Unable to get fab id coefficients\n");
return -EINVAL;
}
break; break;
default: default:
pr_err("No PMIC subtype found\n");
return -EINVAL; return -EINVAL;
} }
} else { } else {
@ -444,18 +500,26 @@ static int rradc_post_process_chg_temp(struct rradc_chip *chip,
int *result_millidegc) int *result_millidegc)
{ {
int64_t uv = 0, offset = 0, slope = 0; int64_t uv = 0, offset = 0, slope = 0;
int rc = 0;
if (chip->revid_dev_node) { if (chip->revid_dev_node) {
switch (chip->pmic_fab_id->fab_id) { switch (chip->pmic_fab_id->pmic_subtype) {
case FAB_ID_GF: case PM660_SUBTYPE:
offset = FG_ADC_RR_CHG_TEMP_GF_OFFSET_UV; rc = rradc_get_660_fab_coeff(chip, &offset, &slope);
slope = FG_ADC_RR_CHG_TEMP_GF_SLOPE_UV_PER_C; if (rc < 0) {
pr_err("Unable to get fab id coefficients\n");
return -EINVAL;
}
break; break;
case FAB_ID_SMIC: case PMI8998_SUBTYPE:
offset = FG_ADC_RR_CHG_TEMP_SMIC_OFFSET_UV; rc = rradc_get_8998_fab_coeff(chip, &offset, &slope);
slope = FG_ADC_RR_CHG_TEMP_SMIC_SLOPE_UV_PER_C; if (rc < 0) {
pr_err("Unable to get fab id coefficients\n");
return -EINVAL;
}
break; break;
default: default:
pr_err("No PMIC subtype found\n");
return -EINVAL; return -EINVAL;
} }
} else { } else {