^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Battery driver for Marvell 88PM860x PMIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2012 Marvell International Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Author: Jett Zhou <jtzhou@marvell.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Haojian Zhuang <haojian.zhuang@marvell.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/power_supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/mfd/88pm860x.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /* bit definitions of Status Query Interface 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define STATUS2_CHG (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define STATUS2_BAT (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define STATUS2_VBUS (1 << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* bit definitions of Measurement Enable 1 Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define MEAS1_TINT (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define MEAS1_GP1 (1 << 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /* bit definitions of Measurement Enable 3 Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define MEAS3_IBAT (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define MEAS3_BAT_DET (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define MEAS3_CC (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* bit definitions of Measurement Off Time Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define MEAS_OFF_SLEEP_EN (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* bit definitions of GPADC Bias Current 2 Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define GPBIAS2_GPADC1_SET (2 << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* GPADC1 Bias Current value in uA unit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define GPBIAS2_GPADC1_UA ((GPBIAS2_GPADC1_SET >> 4) * 5 + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* bit definitions of GPADC Misc 1 Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define GPMISC1_GPADC_EN (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /* bit definitions of Charger Control 6 Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define CC6_BAT_DET_GPADC1 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* bit definitions of Coulomb Counter Reading Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define CCNT_AVG_SEL (4 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) /* bit definitions of RTC miscellaneous Register1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define RTC_SOC_5LSB (0x1F << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* bit definitions of RTC Register1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define RTC_SOC_3MSB (0x7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /* bit definitions of Power up Log register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define BAT_WU_LOG (1<<6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /* coulomb counter index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define CCNT_POS1 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define CCNT_POS2 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define CCNT_NEG1 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define CCNT_NEG2 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define CCNT_SPOS 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define CCNT_SNEG 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /* OCV -- Open Circuit Voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define OCV_MODE_ACTIVE 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define OCV_MODE_SLEEP 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /* Vbat range of CC for measuring Rbat */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define LOW_BAT_THRESHOLD 3600
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define VBATT_RESISTOR_MIN 3800
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define VBATT_RESISTOR_MAX 4100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* TBAT for batt, TINT for chip itself */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define PM860X_TEMP_TINT (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define PM860X_TEMP_TBAT (1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * Battery temperature based on NTC resistor, defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * corresponding resistor value -- Ohm / C degeree.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define TBAT_NEG_25D 127773 /* -25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #define TBAT_NEG_10D 54564 /* -10 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define TBAT_0D 32330 /* 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define TBAT_10D 19785 /* 10 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) #define TBAT_20D 12468 /* 20 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) #define TBAT_30D 8072 /* 30 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #define TBAT_40D 5356 /* 40 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct pm860x_battery_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct pm860x_chip *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct i2c_client *i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct power_supply *battery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) int irq_cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int irq_batt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int max_capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) int resistor; /* Battery Internal Resistor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) int last_capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) int start_soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) unsigned present:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) unsigned temp_type:1; /* TINT or TBAT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct ccnt {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) unsigned long long int pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) unsigned long long int neg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) unsigned int spos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) unsigned int sneg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) int total_chg; /* mAh(3.6C) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int total_dischg; /* mAh(3.6C) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * State of Charge.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * The first number is mAh(=3.6C), and the second number is percent point.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static int array_soc[][2] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {4170, 100}, {4154, 99}, {4136, 98}, {4122, 97}, {4107, 96},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {4102, 95}, {4088, 94}, {4081, 93}, {4070, 92}, {4060, 91},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {4053, 90}, {4044, 89}, {4035, 88}, {4028, 87}, {4019, 86},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {4013, 85}, {4006, 84}, {3995, 83}, {3987, 82}, {3982, 81},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) {3976, 80}, {3968, 79}, {3962, 78}, {3954, 77}, {3946, 76},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {3941, 75}, {3934, 74}, {3929, 73}, {3922, 72}, {3916, 71},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {3910, 70}, {3904, 69}, {3898, 68}, {3892, 67}, {3887, 66},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {3880, 65}, {3874, 64}, {3868, 63}, {3862, 62}, {3854, 61},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {3849, 60}, {3843, 59}, {3840, 58}, {3833, 57}, {3829, 56},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {3824, 55}, {3818, 54}, {3815, 53}, {3810, 52}, {3808, 51},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) {3804, 50}, {3801, 49}, {3798, 48}, {3796, 47}, {3792, 46},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {3789, 45}, {3785, 44}, {3784, 43}, {3782, 42}, {3780, 41},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) {3777, 40}, {3776, 39}, {3774, 38}, {3772, 37}, {3771, 36},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {3769, 35}, {3768, 34}, {3764, 33}, {3763, 32}, {3760, 31},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {3760, 30}, {3754, 29}, {3750, 28}, {3749, 27}, {3744, 26},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) {3740, 25}, {3734, 24}, {3732, 23}, {3728, 22}, {3726, 21},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {3720, 20}, {3716, 19}, {3709, 18}, {3703, 17}, {3698, 16},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {3692, 15}, {3683, 14}, {3675, 13}, {3670, 12}, {3665, 11},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {3661, 10}, {3649, 9}, {3637, 8}, {3622, 7}, {3609, 6},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {3580, 5}, {3558, 4}, {3540, 3}, {3510, 2}, {3429, 1},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static struct ccnt ccnt_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * register 1 bit[7:0] -- bit[11:4] of measured value of voltage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) * register 0 bit[3:0] -- bit[3:0] of measured value of voltage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static int measure_12bit_voltage(struct pm860x_battery_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) int offset, int *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) unsigned char buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) ret = pm860x_bulk_read(info->i2c, offset, 2, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) *data = ((buf[0] & 0xff) << 4) | (buf[1] & 0x0f);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) /* V_MEAS(mV) = data * 1.8 * 1000 / (2^12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) *data = ((*data & 0xfff) * 9 * 25) >> 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static int measure_vbatt(struct pm860x_battery_info *info, int state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) int *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) unsigned char buf[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) switch (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) case OCV_MODE_ACTIVE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) ret = measure_12bit_voltage(info, PM8607_VBAT_MEAS1, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /* V_BATT_MEAS(mV) = value * 3 * 1.8 * 1000 / (2^12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) *data *= 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) case OCV_MODE_SLEEP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * voltage value of VBATT in sleep mode is saved in different
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * bit[11:10] -- bit[7:6] of LDO9(0x18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * bit[9:8] -- bit[7:6] of LDO8(0x17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * bit[7:6] -- bit[7:6] of LDO7(0x16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) * bit[5:4] -- bit[7:6] of LDO6(0x15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) * bit[3:0] -- bit[7:4] of LDO5(0x14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) ret = pm860x_bulk_read(info->i2c, PM8607_LDO5, 5, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) ret = ((buf[4] >> 6) << 10) | ((buf[3] >> 6) << 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) | ((buf[2] >> 6) << 6) | ((buf[1] >> 6) << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) | (buf[0] >> 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) /* V_BATT_MEAS(mV) = data * 3 * 1.8 * 1000 / (2^12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) *data = ((*data & 0xff) * 27 * 25) >> 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * Return value is signed data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * Negative value means discharging, and positive value means charging.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static int measure_current(struct pm860x_battery_info *info, int *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) unsigned char buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) short s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) ret = pm860x_bulk_read(info->i2c, PM8607_IBAT_MEAS1, 2, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) s = ((buf[0] & 0xff) << 8) | (buf[1] & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /* current(mA) = value * 0.125 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) *data = s >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static int set_charger_current(struct pm860x_battery_info *info, int data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) int *old)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (data < 50 || data > 1600 || !old)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) data = ((data - 50) / 50) & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) *old = pm860x_reg_read(info->i2c, PM8607_CHG_CTRL2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) *old = (*old & 0x1f) * 50 + 50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) ret = pm860x_set_bits(info->i2c, PM8607_CHG_CTRL2, 0x1f, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static int read_ccnt(struct pm860x_battery_info *info, int offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) int *ccnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) unsigned char buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) ret = pm860x_set_bits(info->i2c, PM8607_CCNT, 7, offset & 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) ret = pm860x_bulk_read(info->i2c, PM8607_CCNT_MEAS1, 2, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) *ccnt = ((buf[0] & 0xff) << 8) | (buf[1] & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) static int calc_ccnt(struct pm860x_battery_info *info, struct ccnt *ccnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) unsigned int sum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) ret = read_ccnt(info, CCNT_POS1, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) sum = data & 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) ret = read_ccnt(info, CCNT_POS2, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) sum |= (data & 0xffff) << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) ccnt->pos += sum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) ret = read_ccnt(info, CCNT_NEG1, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) sum = data & 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) ret = read_ccnt(info, CCNT_NEG2, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) sum |= (data & 0xffff) << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) sum = ~sum + 1; /* since it's negative */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) ccnt->neg += sum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) ret = read_ccnt(info, CCNT_SPOS, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) ccnt->spos += data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) ret = read_ccnt(info, CCNT_SNEG, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * charge(mAh) = count * 1.6984 * 1e(-8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * = count * 16984 * 1.024 * 1.024 * 1.024 / (2 ^ 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * = count * 18236 / (2 ^ 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) ccnt->total_chg = (int) ((ccnt->pos * 18236) >> 40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) ccnt->total_dischg = (int) ((ccnt->neg * 18236) >> 40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) static int clear_ccnt(struct pm860x_battery_info *info, struct ccnt *ccnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) memset(ccnt, 0, sizeof(*ccnt));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) /* read to clear ccnt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) read_ccnt(info, CCNT_POS1, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) read_ccnt(info, CCNT_POS2, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) read_ccnt(info, CCNT_NEG1, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) read_ccnt(info, CCNT_NEG2, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) read_ccnt(info, CCNT_SPOS, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) read_ccnt(info, CCNT_SNEG, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) /* Calculate Open Circuit Voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) static int calc_ocv(struct pm860x_battery_info *info, int *ocv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) int vbatt_avg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) int vbatt_sum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) int ibatt_avg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) int ibatt_sum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (!ocv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) for (i = 0, ibatt_sum = 0, vbatt_sum = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ret = measure_vbatt(info, OCV_MODE_ACTIVE, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) vbatt_sum += data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) ret = measure_current(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) ibatt_sum += data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) vbatt_avg = vbatt_sum / 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) ibatt_avg = ibatt_sum / 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) mutex_lock(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) if (info->present)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) *ocv = vbatt_avg - ibatt_avg * info->resistor / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) *ocv = vbatt_avg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) mutex_unlock(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) dev_dbg(info->dev, "VBAT average:%d, OCV:%d\n", vbatt_avg, *ocv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) /* Calculate State of Charge (percent points) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) static int calc_soc(struct pm860x_battery_info *info, int state, int *soc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) int ocv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) int ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) if (!soc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) switch (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) case OCV_MODE_ACTIVE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) ret = calc_ocv(info, &ocv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) case OCV_MODE_SLEEP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) ret = measure_vbatt(info, OCV_MODE_SLEEP, &ocv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) count = ARRAY_SIZE(array_soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) if (ocv < array_soc[count - 1][0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) *soc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) for (i = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (ocv >= array_soc[i][0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) *soc = array_soc[i][1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) static irqreturn_t pm860x_coulomb_handler(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) struct pm860x_battery_info *info = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) calc_ccnt(info, &ccnt_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) static irqreturn_t pm860x_batt_handler(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct pm860x_battery_info *info = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) mutex_lock(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) ret = pm860x_reg_read(info->i2c, PM8607_STATUS_2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) if (ret & STATUS2_BAT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) info->present = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) info->temp_type = PM860X_TEMP_TBAT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) info->present = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) info->temp_type = PM860X_TEMP_TINT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) mutex_unlock(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) /* clear ccnt since battery is attached or dettached */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) clear_ccnt(info, &ccnt_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) static void pm860x_init_battery(struct pm860x_battery_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) unsigned char buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) int bat_remove;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) int soc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) /* measure enable on GPADC1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) data = MEAS1_GP1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (info->temp_type == PM860X_TEMP_TINT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) data |= MEAS1_TINT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) ret = pm860x_set_bits(info->i2c, PM8607_MEAS_EN1, data, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) /* measure enable on IBAT, BAT_DET, CC. IBAT is depend on CC. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) data = MEAS3_IBAT | MEAS3_BAT_DET | MEAS3_CC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) ret = pm860x_set_bits(info->i2c, PM8607_MEAS_EN3, data, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) /* measure disable CC in sleep time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) ret = pm860x_reg_write(info->i2c, PM8607_MEAS_OFF_TIME1, 0x82);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) ret = pm860x_reg_write(info->i2c, PM8607_MEAS_OFF_TIME2, 0x6c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) /* enable GPADC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) ret = pm860x_set_bits(info->i2c, PM8607_GPADC_MISC1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) GPMISC1_GPADC_EN, GPMISC1_GPADC_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) /* detect battery via GPADC1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) ret = pm860x_set_bits(info->i2c, PM8607_CHG_CTRL6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) CC6_BAT_DET_GPADC1, CC6_BAT_DET_GPADC1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) ret = pm860x_set_bits(info->i2c, PM8607_CCNT, 7 << 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) CCNT_AVG_SEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) /* set GPADC1 bias */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) ret = pm860x_set_bits(info->i2c, PM8607_GP_BIAS2, 0xF << 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) GPBIAS2_GPADC1_SET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) /* check whether battery present) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) mutex_lock(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) ret = pm860x_reg_read(info->i2c, PM8607_STATUS_2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) mutex_unlock(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) if (ret & STATUS2_BAT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) info->present = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) info->temp_type = PM860X_TEMP_TBAT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) info->present = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) info->temp_type = PM860X_TEMP_TINT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) mutex_unlock(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) ret = calc_soc(info, OCV_MODE_ACTIVE, &soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) data = pm860x_reg_read(info->i2c, PM8607_POWER_UP_LOG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) bat_remove = data & BAT_WU_LOG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) dev_dbg(info->dev, "battery wake up? %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) bat_remove != 0 ? "yes" : "no");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) /* restore SOC from RTC domain register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) if (bat_remove == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) buf[0] = pm860x_reg_read(info->i2c, PM8607_RTC_MISC2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) buf[1] = pm860x_reg_read(info->i2c, PM8607_RTC1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) data = ((buf[1] & 0x3) << 5) | ((buf[0] >> 3) & 0x1F);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) if (data > soc + 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) info->start_soc = soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) else if (data < soc - 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) info->start_soc = soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) info->start_soc = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) dev_dbg(info->dev, "soc_rtc %d, soc_ocv :%d\n", data, soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) pm860x_set_bits(info->i2c, PM8607_POWER_UP_LOG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) BAT_WU_LOG, BAT_WU_LOG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) info->start_soc = soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) info->last_capacity = info->start_soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) dev_dbg(info->dev, "init soc : %d\n", info->last_capacity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) static void set_temp_threshold(struct pm860x_battery_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) int min, int max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) /* (tmp << 8) / 1800 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) if (min <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) data = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) data = (min << 8) / 1800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) pm860x_reg_write(info->i2c, PM8607_GPADC1_HIGHTH, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) dev_dbg(info->dev, "TEMP_HIGHTH : min: %d, 0x%x\n", min, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) if (max <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) data = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) data = (max << 8) / 1800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) pm860x_reg_write(info->i2c, PM8607_GPADC1_LOWTH, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) dev_dbg(info->dev, "TEMP_LOWTH:max : %d, 0x%x\n", max, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) static int measure_temp(struct pm860x_battery_info *info, int *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) int temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) int min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) int max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) if (info->temp_type == PM860X_TEMP_TINT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) ret = measure_12bit_voltage(info, PM8607_TINT_MEAS1, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) *data = (*data - 884) * 1000 / 3611;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) ret = measure_12bit_voltage(info, PM8607_GPADC1_MEAS1, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) /* meausered Vtbat(mV) / Ibias_current(11uA)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) *data = (*data * 1000) / GPBIAS2_GPADC1_UA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) if (*data > TBAT_NEG_25D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) temp = -30; /* over cold , suppose -30 roughly */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) max = TBAT_NEG_10D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) set_temp_threshold(info, 0, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) } else if (*data > TBAT_NEG_10D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) temp = -15; /* -15 degree, code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) max = TBAT_NEG_10D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) set_temp_threshold(info, 0, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) } else if (*data > TBAT_0D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) temp = -5; /* -5 degree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) min = TBAT_NEG_10D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) max = TBAT_40D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) set_temp_threshold(info, min, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) } else if (*data > TBAT_10D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) temp = 5; /* in range of (0, 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) min = TBAT_NEG_10D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) max = TBAT_40D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) set_temp_threshold(info, min, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) } else if (*data > TBAT_20D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) temp = 15; /* in range of (10, 20) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) min = TBAT_NEG_10D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) max = TBAT_40D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) set_temp_threshold(info, min, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) } else if (*data > TBAT_30D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) temp = 25; /* in range of (20, 30) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) min = TBAT_NEG_10D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) max = TBAT_40D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) set_temp_threshold(info, min, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) } else if (*data > TBAT_40D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) temp = 35; /* in range of (30, 40) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) min = TBAT_NEG_10D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) max = TBAT_40D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) set_temp_threshold(info, min, max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) min = TBAT_40D * GPBIAS2_GPADC1_UA / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) set_temp_threshold(info, min, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) temp = 45; /* over heat ,suppose 45 roughly */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) dev_dbg(info->dev, "temp_C:%d C,temp_mv:%d mv\n", temp, *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) *data = temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) static int calc_resistor(struct pm860x_battery_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) int vbatt_sum1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) int vbatt_sum2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) int chg_current;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) int ibatt_sum1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) int ibatt_sum2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) ret = measure_current(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) /* make sure that charging is launched by data > 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) if (ret || data < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) ret = measure_vbatt(info, OCV_MODE_ACTIVE, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) /* calculate resistor only in CC charge mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) if (data < VBATT_RESISTOR_MIN || data > VBATT_RESISTOR_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) /* current is saved */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (set_charger_current(info, 500, &chg_current))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) * set charge current as 500mA, wait about 500ms till charging
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) * process is launched and stable with the newer charging current.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) msleep(500);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) for (i = 0, vbatt_sum1 = 0, ibatt_sum1 = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) ret = measure_vbatt(info, OCV_MODE_ACTIVE, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) goto out_meas;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) vbatt_sum1 += data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) ret = measure_current(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) goto out_meas;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) if (data < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) ibatt_sum1 = ibatt_sum1 - data; /* discharging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) ibatt_sum1 = ibatt_sum1 + data; /* charging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (set_charger_current(info, 100, &ret))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) goto out_meas;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) * set charge current as 100mA, wait about 500ms till charging
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) * process is launched and stable with the newer charging current.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) msleep(500);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) for (i = 0, vbatt_sum2 = 0, ibatt_sum2 = 0; i < 10; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) ret = measure_vbatt(info, OCV_MODE_ACTIVE, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) goto out_meas;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) vbatt_sum2 += data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) ret = measure_current(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) goto out_meas;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) if (data < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) ibatt_sum2 = ibatt_sum2 - data; /* discharging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) ibatt_sum2 = ibatt_sum2 + data; /* charging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /* restore current setting */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) if (set_charger_current(info, chg_current, &ret))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) goto out_meas;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) if ((vbatt_sum1 > vbatt_sum2) && (ibatt_sum1 > ibatt_sum2) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) (ibatt_sum2 > 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) /* calculate resistor in discharging case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) data = 1000 * (vbatt_sum1 - vbatt_sum2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) / (ibatt_sum1 - ibatt_sum2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) if ((data - info->resistor > 0) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) (data - info->resistor < info->resistor))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) info->resistor = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) if ((info->resistor - data > 0) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) (info->resistor - data < data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) info->resistor = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) out_meas:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) set_charger_current(info, chg_current, &ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) static int calc_capacity(struct pm860x_battery_info *info, int *cap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) int ibat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) int cap_ocv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) int cap_cc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) ret = calc_ccnt(info, &ccnt_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) soc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) data = info->max_capacity * info->start_soc / 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) if (ccnt_data.total_dischg - ccnt_data.total_chg <= data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) cap_cc =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) data + ccnt_data.total_chg - ccnt_data.total_dischg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) clear_ccnt(info, &ccnt_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) calc_soc(info, OCV_MODE_ACTIVE, &info->start_soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) dev_dbg(info->dev, "restart soc = %d !\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) info->start_soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) goto soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) cap_cc = cap_cc * 100 / info->max_capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) if (cap_cc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) cap_cc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) else if (cap_cc > 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) cap_cc = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) dev_dbg(info->dev, "%s, last cap : %d", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) info->last_capacity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) ret = measure_current(info, &ibat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) /* Calculate the capacity when discharging(ibat < 0) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) if (ibat < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) ret = calc_soc(info, OCV_MODE_ACTIVE, &cap_ocv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) cap_ocv = info->last_capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) ret = measure_vbatt(info, OCV_MODE_ACTIVE, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) if (data <= LOW_BAT_THRESHOLD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) /* choose the lower capacity value to report
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) * between vbat and CC when vbat < 3.6v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) * than 3.6v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) *cap = min(cap_ocv, cap_cc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) /* when detect vbat > 3.6v, but cap_cc < 15,and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) * cap_ocv is 10% larger than cap_cc, we can think
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) * CC have some accumulation error, switch to OCV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) * to estimate capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) * */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) if (cap_cc < 15 && cap_ocv - cap_cc > 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) *cap = cap_ocv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) *cap = cap_cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) /* when discharging, make sure current capacity
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) * is lower than last*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) if (*cap > info->last_capacity)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) *cap = info->last_capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) *cap = cap_cc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) info->last_capacity = *cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) dev_dbg(info->dev, "%s, cap_ocv:%d cap_cc:%d, cap:%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) (ibat < 0) ? "discharging" : "charging",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) cap_ocv, cap_cc, *cap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) * store the current capacity to RTC domain register,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) * after next power up , it will be restored.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) pm860x_set_bits(info->i2c, PM8607_RTC_MISC2, RTC_SOC_5LSB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) (*cap & 0x1F) << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) pm860x_set_bits(info->i2c, PM8607_RTC1, RTC_SOC_3MSB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) ((*cap >> 5) & 0x3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) static void pm860x_external_power_changed(struct power_supply *psy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) struct pm860x_battery_info *info = dev_get_drvdata(psy->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) calc_resistor(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) static int pm860x_batt_get_prop(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) struct pm860x_battery_info *info = dev_get_drvdata(psy->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) case POWER_SUPPLY_PROP_PRESENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) val->intval = info->present;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) case POWER_SUPPLY_PROP_CAPACITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) ret = calc_capacity(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) if (data < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) data = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) else if (data > 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) data = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) /* return 100 if battery is not attached */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) if (!info->present)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) data = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) val->intval = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) case POWER_SUPPLY_PROP_TECHNOLOGY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) case POWER_SUPPLY_PROP_VOLTAGE_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) /* return real vbatt Voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) ret = measure_vbatt(info, OCV_MODE_ACTIVE, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) val->intval = data * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) case POWER_SUPPLY_PROP_VOLTAGE_AVG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) /* return Open Circuit Voltage (not measured voltage) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) ret = calc_ocv(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) val->intval = data * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) case POWER_SUPPLY_PROP_CURRENT_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) ret = measure_current(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) val->intval = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) case POWER_SUPPLY_PROP_TEMP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) if (info->present) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) ret = measure_temp(info, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) data *= 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) /* Fake Temp 25C Without Battery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) data = 250;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) val->intval = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) static int pm860x_batt_set_prop(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) const union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) struct pm860x_battery_info *info = dev_get_drvdata(psy->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) case POWER_SUPPLY_PROP_CHARGE_FULL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) clear_ccnt(info, &ccnt_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) info->start_soc = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) dev_dbg(info->dev, "chg done, update soc = %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) info->start_soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) static enum power_supply_property pm860x_batt_props[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) POWER_SUPPLY_PROP_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) POWER_SUPPLY_PROP_CAPACITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) POWER_SUPPLY_PROP_TECHNOLOGY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) POWER_SUPPLY_PROP_VOLTAGE_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) POWER_SUPPLY_PROP_VOLTAGE_AVG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) POWER_SUPPLY_PROP_CURRENT_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) POWER_SUPPLY_PROP_TEMP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) static const struct power_supply_desc pm860x_battery_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) .name = "battery-monitor",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) .type = POWER_SUPPLY_TYPE_BATTERY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) .properties = pm860x_batt_props,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) .num_properties = ARRAY_SIZE(pm860x_batt_props),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) .get_property = pm860x_batt_get_prop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) .set_property = pm860x_batt_set_prop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) .external_power_changed = pm860x_external_power_changed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) static int pm860x_battery_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) struct pm860x_battery_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) struct pm860x_power_pdata *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) if (!info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) info->irq_cc = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) if (info->irq_cc <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) info->irq_batt = platform_get_irq(pdev, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) if (info->irq_batt <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) info->chip = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) info->i2c =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) info->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) info->status = POWER_SUPPLY_STATUS_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) pdata = pdev->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) mutex_init(&info->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) platform_set_drvdata(pdev, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) pm860x_init_battery(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) if (pdata && pdata->max_capacity)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) info->max_capacity = pdata->max_capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) info->max_capacity = 1500; /* set default capacity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) if (pdata && pdata->resistor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) info->resistor = pdata->resistor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) info->resistor = 300; /* set default internal resistor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) info->battery = devm_power_supply_register(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) &pm860x_battery_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) if (IS_ERR(info->battery))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) return PTR_ERR(info->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) info->battery->dev.parent = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) ret = devm_request_threaded_irq(chip->dev, info->irq_cc, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) pm860x_coulomb_handler, IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) "coulomb", info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) info->irq_cc, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) ret = devm_request_threaded_irq(chip->dev, info->irq_batt, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) pm860x_batt_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) IRQF_ONESHOT, "battery", info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) info->irq_batt, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) static int pm860x_battery_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) struct platform_device *pdev = to_platform_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) if (device_may_wakeup(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) chip->wakeup_flag |= 1 << PM8607_IRQ_CC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) static int pm860x_battery_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) struct platform_device *pdev = to_platform_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) if (device_may_wakeup(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) chip->wakeup_flag &= ~(1 << PM8607_IRQ_CC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) static SIMPLE_DEV_PM_OPS(pm860x_battery_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) pm860x_battery_suspend, pm860x_battery_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) static struct platform_driver pm860x_battery_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) .name = "88pm860x-battery",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) .pm = &pm860x_battery_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) .probe = pm860x_battery_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) module_platform_driver(pm860x_battery_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) MODULE_DESCRIPTION("Marvell 88PM860x Battery driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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