c2da79534d
Add helper functions of_batterydata_get_aged_profile_count() and of_batterydata_read_soh_aged_profiles() to support SOH based profile loading. Since this requires SOH ranges to be parsed from multiple profiles for the same battery, add a data structure soh_range that can be populated for the number of available battery profiles. Change-Id: I9b17d1311fb158b59fa5b17390f3b1a29b76b0e9 Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
226 lines
6.3 KiB
C
226 lines
6.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2012-2015, 2017, 2019 The Linux Foundation.
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* All rights reserved.
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*/
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#ifndef __BMS_BATTERYDATA_H
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#define __BMS_BATTERYDATA_H
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#include <linux/errno.h>
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#define FCC_CC_COLS 5
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#define FCC_TEMP_COLS 8
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#define PC_CC_ROWS 31
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#define PC_CC_COLS 13
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#define PC_TEMP_ROWS 31
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#define PC_TEMP_COLS 8
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#define ACC_IBAT_ROWS 4
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#define ACC_TEMP_COLS 3
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#define MAX_SINGLE_LUT_COLS 20
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#define MAX_BATT_ID_NUM 4
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#define DEGC_SCALE 10
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struct single_row_lut {
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int x[MAX_SINGLE_LUT_COLS];
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int y[MAX_SINGLE_LUT_COLS];
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int cols;
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};
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/**
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* struct sf_lut -
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* @rows: number of percent charge entries should be <= PC_CC_ROWS
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* @cols: number of charge cycle entries should be <= PC_CC_COLS
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* @row_entries: the charge cycles/temperature at which sf data
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* is available in the table.
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* The charge cycles must be in increasing order from 0 to rows.
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* @percent: the percent charge at which sf data is available in the table
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* The percentcharge must be in decreasing order from 0 to cols.
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* @sf: the scaling factor data
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*/
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struct sf_lut {
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int rows;
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int cols;
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int row_entries[PC_CC_COLS];
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int percent[PC_CC_ROWS];
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int sf[PC_CC_ROWS][PC_CC_COLS];
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};
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/**
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* struct pc_temp_ocv_lut -
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* @rows: number of percent charge entries should be <= PC_TEMP_ROWS
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* @cols: number of temperature entries should be <= PC_TEMP_COLS
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* @temp: the temperatures at which ocv data is available in the table
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* The temperatures must be in increasing order from 0 to rows.
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* @percent: the percent charge at which ocv data is available in the table
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* The percentcharge must be in decreasing order from 0 to cols.
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* @ocv: the open circuit voltage
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*/
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struct pc_temp_ocv_lut {
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int rows;
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int cols;
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int temp[PC_TEMP_COLS];
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int percent[PC_TEMP_ROWS];
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int ocv[PC_TEMP_ROWS][PC_TEMP_COLS];
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};
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struct ibat_temp_acc_lut {
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int rows;
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int cols;
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int temp[ACC_TEMP_COLS];
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int ibat[ACC_IBAT_ROWS];
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int acc[ACC_IBAT_ROWS][ACC_TEMP_COLS];
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};
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struct batt_ids {
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int kohm[MAX_BATT_ID_NUM];
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int num;
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};
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enum battery_type {
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BATT_UNKNOWN = 0,
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BATT_PALLADIUM,
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BATT_DESAY,
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BATT_OEM,
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BATT_QRD_4V35_2000MAH,
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BATT_QRD_4V2_1300MAH,
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};
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/**
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* struct bms_battery_data -
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* @fcc: full charge capacity (mAmpHour)
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* @fcc_temp_lut: table to get fcc at a given temp
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* @pc_temp_ocv_lut: table to get percent charge given batt temp and cycles
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* @pc_sf_lut: table to get percent charge scaling factor given cycles
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* and percent charge
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* @rbatt_sf_lut: table to get battery resistance scaling factor given
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* temperature and percent charge
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* @default_rbatt_mohm: the default value of battery resistance to use when
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* readings from bms are not available.
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* @delta_rbatt_mohm: the resistance to be added towards lower soc to
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* compensate for battery capacitance.
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* @rbatt_capacitve_mohm: the resistance to be added to compensate for
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* battery capacitance
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* @flat_ocv_threshold_uv: the voltage where the battery's discharge curve
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* starts flattening out.
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* @max_voltage_uv: max voltage of the battery
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* @cutoff_uv: cutoff voltage of the battery
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* @iterm_ua: termination current of the battery when charging
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* to 100%
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* @batt_id_kohm: the best matched battery id resistor value
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* @fastchg_current_ma: maximum fast charge current
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* @fg_cc_cv_threshold_mv: CC to CV threashold voltage
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*/
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struct bms_battery_data {
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unsigned int fcc;
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struct single_row_lut *fcc_temp_lut;
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struct single_row_lut *fcc_sf_lut;
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struct pc_temp_ocv_lut *pc_temp_ocv_lut;
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struct ibat_temp_acc_lut *ibat_acc_lut;
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struct sf_lut *pc_sf_lut;
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struct sf_lut *rbatt_sf_lut;
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int default_rbatt_mohm;
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int delta_rbatt_mohm;
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int rbatt_capacitive_mohm;
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int flat_ocv_threshold_uv;
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int max_voltage_uv;
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int cutoff_uv;
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int iterm_ua;
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int batt_id_kohm;
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int fastchg_current_ma;
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int fg_cc_cv_threshold_mv;
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const char *battery_type;
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};
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/**
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* struct soh_range -
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* @batt_age_level: Battery age level (e.g. 0, 1 etc.,)
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* @soh_min: Minimum SOH (state of health) level that this battery
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* profile can support.
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* @soh_max: Maximum SOH (state of health) level that this battery
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* profile can support.
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*/
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struct soh_range {
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int batt_age_level;
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int soh_min;
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int soh_max;
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};
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#define is_between(left, right, value) \
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(((left) >= (right) && (left) >= (value) \
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&& (value) >= (right)) \
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|| ((left) <= (right) && (left) <= (value) \
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&& (value) <= (right)))
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#if defined(CONFIG_PM8921_BMS) || \
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defined(CONFIG_PM8921_BMS_MODULE) || \
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defined(CONFIG_QPNP_BMS) || \
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defined(CONFIG_QPNP_VM_BMS)
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extern struct bms_battery_data palladium_1500_data;
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extern struct bms_battery_data desay_5200_data;
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extern struct bms_battery_data oem_batt_data;
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extern struct bms_battery_data QRD_4v35_2000mAh_data;
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extern struct bms_battery_data qrd_4v2_1300mah_data;
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int interpolate_fcc(struct single_row_lut *fcc_temp_lut, int batt_temp);
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int interpolate_scalingfactor(struct sf_lut *sf_lut, int row_entry, int pc);
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int interpolate_scalingfactor_fcc(struct single_row_lut *fcc_sf_lut,
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int cycles);
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int interpolate_pc(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int ocv);
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int interpolate_ocv(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int pc);
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int interpolate_slope(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp, int pc);
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int interpolate_acc(struct ibat_temp_acc_lut *ibat_acc_lut,
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int batt_temp, int ibat);
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int linear_interpolate(int y0, int x0, int y1, int x1, int x);
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#else
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static inline int interpolate_fcc(struct single_row_lut *fcc_temp_lut,
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int batt_temp)
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{
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return -EINVAL;
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}
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static inline int interpolate_scalingfactor(struct sf_lut *sf_lut,
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int row_entry, int pc)
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{
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return -EINVAL;
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}
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static inline int interpolate_scalingfactor_fcc(
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struct single_row_lut *fcc_sf_lut, int cycles)
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{
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return -EINVAL;
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}
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static inline int interpolate_pc(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int ocv)
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{
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return -EINVAL;
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}
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static inline int interpolate_ocv(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp_degc, int pc)
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{
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return -EINVAL;
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}
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static inline int interpolate_slope(struct pc_temp_ocv_lut *pc_temp_ocv,
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int batt_temp, int pc)
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{
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return -EINVAL;
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}
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static inline int linear_interpolate(int y0, int x0, int y1, int x1, int x)
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{
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return -EINVAL;
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}
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static inline int interpolate_acc(struct ibat_temp_acc_lut *ibat_acc_lut,
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int batt_temp, int ibat)
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{
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return -EINVAL;
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}
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#endif
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#endif
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