^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * TI BQ24257 charger driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2015 Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Datasheets:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * https://www.ti.com/product/bq24250
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * https://www.ti.com/product/bq24251
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * https://www.ti.com/product/bq24257
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/power_supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define BQ24257_REG_1 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define BQ24257_REG_2 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define BQ24257_REG_3 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define BQ24257_REG_4 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define BQ24257_REG_5 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define BQ24257_REG_6 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define BQ24257_REG_7 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define BQ24257_MANUFACTURER "Texas Instruments"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define BQ24257_PG_GPIO "pg"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define BQ24257_ILIM_SET_DELAY 1000 /* msec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * When adding support for new devices make sure that enum bq2425x_chip and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * bq2425x_chip_name[] always stay in sync!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) enum bq2425x_chip {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) BQ24250,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) BQ24251,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) BQ24257,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static const char *const bq2425x_chip_name[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) "bq24250",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) "bq24251",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) "bq24257",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) enum bq24257_fields {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) F_WD_FAULT, F_WD_EN, F_STAT, F_FAULT, /* REG 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) F_RESET, F_IILIMIT, F_EN_STAT, F_EN_TERM, F_CE, F_HZ_MODE, /* REG 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) F_VBAT, F_USB_DET, /* REG 3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) F_ICHG, F_ITERM, /* REG 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) F_LOOP_STATUS, F_LOW_CHG, F_DPDM_EN, F_CE_STATUS, F_VINDPM, /* REG 5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) F_X2_TMR_EN, F_TMR, F_SYSOFF, F_TS_EN, F_TS_STAT, /* REG 6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) F_VOVP, F_CLR_VDP, F_FORCE_BATDET, F_FORCE_PTM, /* REG 7 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) F_MAX_FIELDS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* initial field values, converted from uV/uA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct bq24257_init_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) u8 ichg; /* charge current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) u8 vbat; /* regulation voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u8 iterm; /* termination current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) u8 iilimit; /* input current limit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) u8 vovp; /* over voltage protection voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) u8 vindpm; /* VDMP input threshold voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct bq24257_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) u8 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) u8 fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) bool power_good;
^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) struct bq24257_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct power_supply *charger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) enum bq2425x_chip chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct regmap *rmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct regmap_field *rmap_fields[F_MAX_FIELDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct gpio_desc *pg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct delayed_work iilimit_setup_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct bq24257_init_data init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct bq24257_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct mutex lock; /* protect state data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) bool iilimit_autoset_enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static bool bq24257_is_volatile_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) case BQ24257_REG_2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) case BQ24257_REG_4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static const struct regmap_config bq24257_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .max_register = BQ24257_REG_7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .cache_type = REGCACHE_RBTREE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .volatile_reg = bq24257_is_volatile_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static const struct reg_field bq24257_reg_fields[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) /* REG 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) [F_WD_FAULT] = REG_FIELD(BQ24257_REG_1, 7, 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) [F_WD_EN] = REG_FIELD(BQ24257_REG_1, 6, 6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) [F_STAT] = REG_FIELD(BQ24257_REG_1, 4, 5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) [F_FAULT] = REG_FIELD(BQ24257_REG_1, 0, 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /* REG 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) [F_RESET] = REG_FIELD(BQ24257_REG_2, 7, 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) [F_IILIMIT] = REG_FIELD(BQ24257_REG_2, 4, 6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) [F_EN_STAT] = REG_FIELD(BQ24257_REG_2, 3, 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) [F_EN_TERM] = REG_FIELD(BQ24257_REG_2, 2, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) [F_CE] = REG_FIELD(BQ24257_REG_2, 1, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) [F_HZ_MODE] = REG_FIELD(BQ24257_REG_2, 0, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /* REG 3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) [F_VBAT] = REG_FIELD(BQ24257_REG_3, 2, 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) [F_USB_DET] = REG_FIELD(BQ24257_REG_3, 0, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) /* REG 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) [F_ICHG] = REG_FIELD(BQ24257_REG_4, 3, 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) [F_ITERM] = REG_FIELD(BQ24257_REG_4, 0, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* REG 5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) [F_LOOP_STATUS] = REG_FIELD(BQ24257_REG_5, 6, 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) [F_LOW_CHG] = REG_FIELD(BQ24257_REG_5, 5, 5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) [F_DPDM_EN] = REG_FIELD(BQ24257_REG_5, 4, 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) [F_CE_STATUS] = REG_FIELD(BQ24257_REG_5, 3, 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) [F_VINDPM] = REG_FIELD(BQ24257_REG_5, 0, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /* REG 6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) [F_X2_TMR_EN] = REG_FIELD(BQ24257_REG_6, 7, 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) [F_TMR] = REG_FIELD(BQ24257_REG_6, 5, 6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) [F_SYSOFF] = REG_FIELD(BQ24257_REG_6, 4, 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) [F_TS_EN] = REG_FIELD(BQ24257_REG_6, 3, 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) [F_TS_STAT] = REG_FIELD(BQ24257_REG_6, 0, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) /* REG 7 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) [F_VOVP] = REG_FIELD(BQ24257_REG_7, 5, 7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) [F_CLR_VDP] = REG_FIELD(BQ24257_REG_7, 4, 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) [F_FORCE_BATDET] = REG_FIELD(BQ24257_REG_7, 3, 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) [F_FORCE_PTM] = REG_FIELD(BQ24257_REG_7, 2, 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static const u32 bq24257_vbat_map[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 3500000, 3520000, 3540000, 3560000, 3580000, 3600000, 3620000, 3640000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 3660000, 3680000, 3700000, 3720000, 3740000, 3760000, 3780000, 3800000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 3820000, 3840000, 3860000, 3880000, 3900000, 3920000, 3940000, 3960000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 3980000, 4000000, 4020000, 4040000, 4060000, 4080000, 4100000, 4120000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 4140000, 4160000, 4180000, 4200000, 4220000, 4240000, 4260000, 4280000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 4300000, 4320000, 4340000, 4360000, 4380000, 4400000, 4420000, 4440000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) #define BQ24257_VBAT_MAP_SIZE ARRAY_SIZE(bq24257_vbat_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static const u32 bq24257_ichg_map[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 500000, 550000, 600000, 650000, 700000, 750000, 800000, 850000, 900000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 950000, 1000000, 1050000, 1100000, 1150000, 1200000, 1250000, 1300000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 1350000, 1400000, 1450000, 1500000, 1550000, 1600000, 1650000, 1700000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 1750000, 1800000, 1850000, 1900000, 1950000, 2000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #define BQ24257_ICHG_MAP_SIZE ARRAY_SIZE(bq24257_ichg_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static const u32 bq24257_iterm_map[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 50000, 75000, 100000, 125000, 150000, 175000, 200000, 225000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) #define BQ24257_ITERM_MAP_SIZE ARRAY_SIZE(bq24257_iterm_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static const u32 bq24257_iilimit_map[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 100000, 150000, 500000, 900000, 1500000, 2000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #define BQ24257_IILIMIT_MAP_SIZE ARRAY_SIZE(bq24257_iilimit_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static const u32 bq24257_vovp_map[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 6000000, 6500000, 7000000, 8000000, 9000000, 9500000, 10000000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 10500000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) #define BQ24257_VOVP_MAP_SIZE ARRAY_SIZE(bq24257_vovp_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static const u32 bq24257_vindpm_map[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 4200000, 4280000, 4360000, 4440000, 4520000, 4600000, 4680000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 4760000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) #define BQ24257_VINDPM_MAP_SIZE ARRAY_SIZE(bq24257_vindpm_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) static int bq24257_field_read(struct bq24257_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) enum bq24257_fields field_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) ret = regmap_field_read(bq->rmap_fields[field_id], &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) return val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static int bq24257_field_write(struct bq24257_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) enum bq24257_fields field_id, u8 val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return regmap_field_write(bq->rmap_fields[field_id], val);
^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 u8 bq24257_find_idx(u32 value, const u32 *map, u8 map_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) u8 idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) for (idx = 1; idx < map_size; idx++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (value < map[idx])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return idx - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) enum bq24257_status {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) STATUS_READY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) STATUS_CHARGE_IN_PROGRESS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) STATUS_CHARGE_DONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) STATUS_FAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) enum bq24257_fault {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) FAULT_NORMAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) FAULT_INPUT_OVP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) FAULT_INPUT_UVLO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) FAULT_SLEEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) FAULT_BAT_TS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) FAULT_BAT_OVP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) FAULT_TS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) FAULT_TIMER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) FAULT_NO_BAT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) FAULT_ISET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) FAULT_INPUT_LDO_LOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) static int bq24257_get_input_current_limit(struct bq24257_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) ret = bq24257_field_read(bq, F_IILIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * The "External ILIM" and "Production & Test" modes are not exposed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * through this driver and not being covered by the lookup table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * Should such a mode have become active let's return an error rather
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * than exceeding the bounds of the lookup table and returning
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * garbage.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) if (ret >= BQ24257_IILIMIT_MAP_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) val->intval = bq24257_iilimit_map[ret];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) static int bq24257_set_input_current_limit(struct bq24257_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) const union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * Address the case where the user manually sets an input current limit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) * while the charger auto-detection mechanism is is active. In this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) * case we want to abort and go straight to the user-specified value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (bq->iilimit_autoset_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) cancel_delayed_work_sync(&bq->iilimit_setup_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return bq24257_field_write(bq, F_IILIMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) bq24257_find_idx(val->intval,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) bq24257_iilimit_map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) BQ24257_IILIMIT_MAP_SIZE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) static int bq24257_power_supply_get_property(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) struct bq24257_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct bq24257_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) mutex_lock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) state = bq->state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) mutex_unlock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) case POWER_SUPPLY_PROP_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) if (!state.power_good)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) else if (state.status == STATUS_READY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) else if (state.status == STATUS_CHARGE_IN_PROGRESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) val->intval = POWER_SUPPLY_STATUS_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) else if (state.status == STATUS_CHARGE_DONE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) val->intval = POWER_SUPPLY_STATUS_FULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) case POWER_SUPPLY_PROP_MANUFACTURER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) val->strval = BQ24257_MANUFACTURER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) case POWER_SUPPLY_PROP_MODEL_NAME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) val->strval = bq2425x_chip_name[bq->chip];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) case POWER_SUPPLY_PROP_ONLINE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) val->intval = state.power_good;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) case POWER_SUPPLY_PROP_HEALTH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) switch (state.fault) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) case FAULT_NORMAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) val->intval = POWER_SUPPLY_HEALTH_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) case FAULT_INPUT_OVP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) case FAULT_BAT_OVP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) case FAULT_TS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) case FAULT_BAT_TS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) case FAULT_TIMER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) val->intval = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) val->intval = bq24257_ichg_map[bq->init_data.ichg];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) val->intval = bq24257_ichg_map[BQ24257_ICHG_MAP_SIZE - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) val->intval = bq24257_vbat_map[bq->init_data.vbat];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) val->intval = bq24257_vbat_map[BQ24257_VBAT_MAP_SIZE - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) val->intval = bq24257_iterm_map[bq->init_data.iterm];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) return bq24257_get_input_current_limit(bq, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) return -EINVAL;
^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) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static int bq24257_power_supply_set_property(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) enum power_supply_property prop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) const union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) struct bq24257_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) switch (prop) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return bq24257_set_input_current_limit(bq, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^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 int bq24257_power_supply_property_is_writeable(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) enum power_supply_property psp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) static int bq24257_get_chip_state(struct bq24257_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) struct bq24257_state *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) ret = bq24257_field_read(bq, F_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) state->status = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) ret = bq24257_field_read(bq, F_FAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) state->fault = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (bq->pg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) state->power_good = !gpiod_get_value_cansleep(bq->pg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) * If we have a chip without a dedicated power-good GPIO or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * some other explicit bit that would provide this information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * assume the power is good if there is no supply related
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * fault - and not good otherwise. There is a possibility for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * other errors to mask that power in fact is not good but this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * is probably the best we can do here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) switch (state->fault) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) case FAULT_INPUT_OVP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) case FAULT_INPUT_UVLO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) case FAULT_INPUT_LDO_LOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) state->power_good = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) state->power_good = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) static bool bq24257_state_changed(struct bq24257_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) struct bq24257_state *new_state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) mutex_lock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) ret = (bq->state.status != new_state->status ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) bq->state.fault != new_state->fault ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) bq->state.power_good != new_state->power_good);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) mutex_unlock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) enum bq24257_loop_status {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) LOOP_STATUS_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) LOOP_STATUS_IN_DPM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) LOOP_STATUS_IN_CURRENT_LIMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) LOOP_STATUS_THERMAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) enum bq24257_in_ilimit {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) IILIMIT_100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) IILIMIT_150,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) IILIMIT_500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) IILIMIT_900,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) IILIMIT_1500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) IILIMIT_2000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) IILIMIT_EXT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) IILIMIT_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) enum bq24257_vovp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) VOVP_6000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) VOVP_6500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) VOVP_7000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) VOVP_8000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) VOVP_9000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) VOVP_9500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) VOVP_10000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) VOVP_10500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) enum bq24257_vindpm {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) VINDPM_4200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) VINDPM_4280,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) VINDPM_4360,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) VINDPM_4440,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) VINDPM_4520,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) VINDPM_4600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) VINDPM_4680,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) VINDPM_4760
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) enum bq24257_port_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) PORT_TYPE_DCP, /* Dedicated Charging Port */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) PORT_TYPE_CDP, /* Charging Downstream Port */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) PORT_TYPE_SDP, /* Standard Downstream Port */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) PORT_TYPE_NON_STANDARD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) enum bq24257_safety_timer {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) SAFETY_TIMER_45,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) SAFETY_TIMER_360,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) SAFETY_TIMER_540,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) SAFETY_TIMER_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) static int bq24257_iilimit_autoset(struct bq24257_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) int loop_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) int iilimit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) int port_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) const u8 new_iilimit[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) [PORT_TYPE_DCP] = IILIMIT_2000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) [PORT_TYPE_CDP] = IILIMIT_2000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) [PORT_TYPE_SDP] = IILIMIT_500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) [PORT_TYPE_NON_STANDARD] = IILIMIT_500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) ret = bq24257_field_read(bq, F_LOOP_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) loop_status = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) ret = bq24257_field_read(bq, F_IILIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) iilimit = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) * All USB ports should be able to handle 500mA. If not, DPM will lower
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) * the charging current to accommodate the power source. No need to set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) * a lower IILIMIT value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) if (loop_status == LOOP_STATUS_IN_DPM && iilimit == IILIMIT_500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) ret = bq24257_field_read(bq, F_USB_DET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) port_type = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) ret = bq24257_field_write(bq, F_IILIMIT, new_iilimit[port_type]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) ret = bq24257_field_write(bq, F_TMR, SAFETY_TIMER_360);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) ret = bq24257_field_write(bq, F_CLR_VDP, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) dev_dbg(bq->dev, "port/loop = %d/%d -> iilimit = %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) port_type, loop_status, new_iilimit[port_type]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) dev_err(bq->dev, "%s: Error communicating with the chip.\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) static void bq24257_iilimit_setup_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) struct bq24257_device *bq = container_of(work, struct bq24257_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) iilimit_setup_work.work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) bq24257_iilimit_autoset(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) static void bq24257_handle_state_change(struct bq24257_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) struct bq24257_state *new_state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) struct bq24257_state old_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) mutex_lock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) old_state = bq->state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) mutex_unlock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) * Handle BQ2425x state changes observing whether the D+/D- based input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) * current limit autoset functionality is enabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) if (!new_state->power_good) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) dev_dbg(bq->dev, "Power removed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) if (bq->iilimit_autoset_enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) cancel_delayed_work_sync(&bq->iilimit_setup_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) /* activate D+/D- port detection algorithm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) ret = bq24257_field_write(bq, F_DPDM_EN, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) * When power is removed always return to the default input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) * current limit as configured during probe.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) ret = bq24257_field_write(bq, F_IILIMIT, bq->init_data.iilimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) } else if (!old_state.power_good) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) dev_dbg(bq->dev, "Power inserted\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) if (bq->iilimit_autoset_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) /* configure input current limit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) schedule_delayed_work(&bq->iilimit_setup_work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) msecs_to_jiffies(BQ24257_ILIM_SET_DELAY));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) } else if (new_state->fault == FAULT_NO_BAT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) dev_warn(bq->dev, "Battery removed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) } else if (new_state->fault == FAULT_TIMER) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) dev_err(bq->dev, "Safety timer expired! Battery dead?\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) dev_err(bq->dev, "%s: Error communicating with the chip.\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) static irqreturn_t bq24257_irq_handler_thread(int irq, void *private)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) struct bq24257_device *bq = private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) struct bq24257_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) ret = bq24257_get_chip_state(bq, &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) if (!bq24257_state_changed(bq, &state))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) dev_dbg(bq->dev, "irq(state changed): status/fault/pg = %d/%d/%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) state.status, state.fault, state.power_good);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) bq24257_handle_state_change(bq, &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) mutex_lock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) bq->state = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) mutex_unlock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) power_supply_changed(bq->charger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) static int bq24257_hw_init(struct bq24257_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) struct bq24257_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) const struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) int field;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) u32 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) } init_data[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) {F_ICHG, bq->init_data.ichg},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) {F_VBAT, bq->init_data.vbat},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) {F_ITERM, bq->init_data.iterm},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) {F_VOVP, bq->init_data.vovp},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) {F_VINDPM, bq->init_data.vindpm},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) * Disable the watchdog timer to prevent the IC from going back to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) * default settings after 50 seconds of I2C inactivity.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) ret = bq24257_field_write(bq, F_WD_EN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) /* configure the charge currents and voltages */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) for (i = 0; i < ARRAY_SIZE(init_data); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) ret = bq24257_field_write(bq, init_data[i].field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) init_data[i].value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) ret = bq24257_get_chip_state(bq, &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) mutex_lock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) bq->state = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) mutex_unlock(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) if (!bq->iilimit_autoset_enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) dev_dbg(bq->dev, "manually setting iilimit = %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) bq->init_data.iilimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) /* program fixed input current limit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) ret = bq24257_field_write(bq, F_IILIMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) bq->init_data.iilimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) } else if (!state.power_good)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) /* activate D+/D- detection algorithm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) ret = bq24257_field_write(bq, F_DPDM_EN, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) else if (state.fault != FAULT_NO_BAT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) ret = bq24257_iilimit_autoset(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) static enum power_supply_property bq24257_power_supply_props[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) POWER_SUPPLY_PROP_MANUFACTURER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) POWER_SUPPLY_PROP_MODEL_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) POWER_SUPPLY_PROP_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) POWER_SUPPLY_PROP_ONLINE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) POWER_SUPPLY_PROP_HEALTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) static char *bq24257_charger_supplied_to[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) "main-battery",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) static const struct power_supply_desc bq24257_power_supply_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) .name = "bq24257-charger",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) .type = POWER_SUPPLY_TYPE_USB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) .properties = bq24257_power_supply_props,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) .num_properties = ARRAY_SIZE(bq24257_power_supply_props),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) .get_property = bq24257_power_supply_get_property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) .set_property = bq24257_power_supply_set_property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) .property_is_writeable = bq24257_power_supply_property_is_writeable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) static ssize_t bq24257_show_ovp_voltage(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) struct bq24257_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) return scnprintf(buf, PAGE_SIZE, "%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) bq24257_vovp_map[bq->init_data.vovp]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) static ssize_t bq24257_show_in_dpm_voltage(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) struct bq24257_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) return scnprintf(buf, PAGE_SIZE, "%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) bq24257_vindpm_map[bq->init_data.vindpm]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) static ssize_t bq24257_sysfs_show_enable(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) struct bq24257_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) if (strcmp(attr->attr.name, "high_impedance_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) ret = bq24257_field_read(bq, F_HZ_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) else if (strcmp(attr->attr.name, "sysoff_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) ret = bq24257_field_read(bq, F_SYSOFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) return scnprintf(buf, PAGE_SIZE, "%d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) static ssize_t bq24257_sysfs_set_enable(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) struct bq24257_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) if (kstrtol(buf, 10, &val) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) if (strcmp(attr->attr.name, "high_impedance_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) ret = bq24257_field_write(bq, F_HZ_MODE, (bool)val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) else if (strcmp(attr->attr.name, "sysoff_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) ret = bq24257_field_write(bq, F_SYSOFF, (bool)val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) static DEVICE_ATTR(ovp_voltage, S_IRUGO, bq24257_show_ovp_voltage, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) static DEVICE_ATTR(in_dpm_voltage, S_IRUGO, bq24257_show_in_dpm_voltage, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) static DEVICE_ATTR(high_impedance_enable, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) bq24257_sysfs_show_enable, bq24257_sysfs_set_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) static DEVICE_ATTR(sysoff_enable, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) bq24257_sysfs_show_enable, bq24257_sysfs_set_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) static struct attribute *bq24257_charger_sysfs_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) &dev_attr_ovp_voltage.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) &dev_attr_in_dpm_voltage.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) &dev_attr_high_impedance_enable.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) &dev_attr_sysoff_enable.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) ATTRIBUTE_GROUPS(bq24257_charger_sysfs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) static int bq24257_power_supply_init(struct bq24257_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) struct power_supply_config psy_cfg = { .drv_data = bq, };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) psy_cfg.attr_grp = bq24257_charger_sysfs_groups;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) psy_cfg.supplied_to = bq24257_charger_supplied_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) psy_cfg.num_supplicants = ARRAY_SIZE(bq24257_charger_supplied_to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) bq->charger = devm_power_supply_register(bq->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) &bq24257_power_supply_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) &psy_cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) return PTR_ERR_OR_ZERO(bq->charger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) static void bq24257_pg_gpio_probe(struct bq24257_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) bq->pg = devm_gpiod_get_optional(bq->dev, BQ24257_PG_GPIO, GPIOD_IN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) if (PTR_ERR(bq->pg) == -EPROBE_DEFER) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) dev_info(bq->dev, "probe retry requested for PG pin\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) } else if (IS_ERR(bq->pg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) dev_err(bq->dev, "error probing PG pin\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) bq->pg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) if (bq->pg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) dev_dbg(bq->dev, "probed PG pin = %d\n", desc_to_gpio(bq->pg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) static int bq24257_fw_probe(struct bq24257_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) u32 property;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) /* Required properties */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) ret = device_property_read_u32(bq->dev, "ti,charge-current", &property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) bq->init_data.ichg = bq24257_find_idx(property, bq24257_ichg_map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) BQ24257_ICHG_MAP_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) ret = device_property_read_u32(bq->dev, "ti,battery-regulation-voltage",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) &property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) bq->init_data.vbat = bq24257_find_idx(property, bq24257_vbat_map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) BQ24257_VBAT_MAP_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) ret = device_property_read_u32(bq->dev, "ti,termination-current",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) &property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) bq->init_data.iterm = bq24257_find_idx(property, bq24257_iterm_map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) BQ24257_ITERM_MAP_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) /* Optional properties. If not provided use reasonable default. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) ret = device_property_read_u32(bq->dev, "ti,current-limit",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) &property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) bq->iilimit_autoset_enable = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) * Explicitly set a default value which will be needed for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) * devices that don't support the automatic setting of the input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) * current limit through the charger type detection mechanism.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) bq->init_data.iilimit = IILIMIT_500;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) bq->init_data.iilimit =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) bq24257_find_idx(property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) bq24257_iilimit_map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) BQ24257_IILIMIT_MAP_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) ret = device_property_read_u32(bq->dev, "ti,ovp-voltage",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) &property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) bq->init_data.vovp = VOVP_6500;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) bq->init_data.vovp = bq24257_find_idx(property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) bq24257_vovp_map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) BQ24257_VOVP_MAP_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) ret = device_property_read_u32(bq->dev, "ti,in-dpm-voltage",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) &property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) bq->init_data.vindpm = VINDPM_4360;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) bq->init_data.vindpm =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) bq24257_find_idx(property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) bq24257_vindpm_map,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) BQ24257_VINDPM_MAP_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) static int bq24257_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) struct i2c_adapter *adapter = client->adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) const struct acpi_device_id *acpi_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) struct bq24257_device *bq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) dev_err(dev, "No support for SMBUS_BYTE_DATA\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) bq = devm_kzalloc(dev, sizeof(*bq), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) if (!bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) bq->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) bq->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) if (ACPI_HANDLE(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) acpi_id = acpi_match_device(dev->driver->acpi_match_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) &client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) if (!acpi_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) dev_err(dev, "Failed to match ACPI device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) bq->chip = (enum bq2425x_chip)acpi_id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) bq->chip = (enum bq2425x_chip)id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) mutex_init(&bq->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) bq->rmap = devm_regmap_init_i2c(client, &bq24257_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) if (IS_ERR(bq->rmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) dev_err(dev, "failed to allocate register map\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) return PTR_ERR(bq->rmap);
^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) for (i = 0; i < ARRAY_SIZE(bq24257_reg_fields); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) const struct reg_field *reg_fields = bq24257_reg_fields;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) bq->rmap_fields[i] = devm_regmap_field_alloc(dev, bq->rmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) reg_fields[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) if (IS_ERR(bq->rmap_fields[i])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) dev_err(dev, "cannot allocate regmap field\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) return PTR_ERR(bq->rmap_fields[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) i2c_set_clientdata(client, bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) if (!dev->platform_data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) ret = bq24257_fw_probe(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) dev_err(dev, "Cannot read device properties.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) * The BQ24250 doesn't support the D+/D- based charger type detection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) * used for the automatic setting of the input current limit setting so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) * explicitly disable that feature.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) if (bq->chip == BQ24250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) bq->iilimit_autoset_enable = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) if (bq->iilimit_autoset_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) INIT_DELAYED_WORK(&bq->iilimit_setup_work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) bq24257_iilimit_setup_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) * The BQ24250 doesn't have a dedicated Power Good (PG) pin so let's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) * not probe for it and instead use a SW-based approach to determine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) * the PG state. We also use a SW-based approach for all other devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) * if the PG pin is either not defined or can't be probed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) if (bq->chip != BQ24250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) bq24257_pg_gpio_probe(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) if (PTR_ERR(bq->pg) == -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) return PTR_ERR(bq->pg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) else if (!bq->pg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) dev_info(bq->dev, "using SW-based power-good detection\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) /* reset all registers to defaults */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) ret = bq24257_field_write(bq, F_RESET, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) * Put the RESET bit back to 0, in cache. For some reason the HW always
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) * returns 1 on this bit, so this is the only way to avoid resetting the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) * chip every time we update another field in this register.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) ret = bq24257_field_write(bq, F_RESET, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) ret = bq24257_hw_init(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) dev_err(dev, "Cannot initialize the chip.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) ret = bq24257_power_supply_init(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) dev_err(dev, "Failed to register power supply\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) ret = devm_request_threaded_irq(dev, client->irq, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) bq24257_irq_handler_thread,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) IRQF_TRIGGER_FALLING |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) IRQF_TRIGGER_RISING | IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) bq2425x_chip_name[bq->chip], bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) dev_err(dev, "Failed to request IRQ #%d\n", client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) static int bq24257_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) struct bq24257_device *bq = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) if (bq->iilimit_autoset_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) cancel_delayed_work_sync(&bq->iilimit_setup_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) bq24257_field_write(bq, F_RESET, 1); /* reset to defaults */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) static int bq24257_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) struct bq24257_device *bq = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) if (bq->iilimit_autoset_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) cancel_delayed_work_sync(&bq->iilimit_setup_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) /* reset all registers to default (and activate standalone mode) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) ret = bq24257_field_write(bq, F_RESET, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) dev_err(bq->dev, "Cannot reset chip to standalone mode.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) static int bq24257_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) struct bq24257_device *bq = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) ret = regcache_drop_region(bq->rmap, BQ24257_REG_1, BQ24257_REG_7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) ret = bq24257_field_write(bq, F_RESET, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) ret = bq24257_hw_init(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) dev_err(bq->dev, "Cannot init chip after resume.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) /* signal userspace, maybe state changed while suspended */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) power_supply_changed(bq->charger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) static const struct dev_pm_ops bq24257_pm = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) SET_SYSTEM_SLEEP_PM_OPS(bq24257_suspend, bq24257_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) static const struct i2c_device_id bq24257_i2c_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) { "bq24250", BQ24250 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) { "bq24251", BQ24251 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) { "bq24257", BQ24257 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) MODULE_DEVICE_TABLE(i2c, bq24257_i2c_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) static const struct of_device_id bq24257_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) { .compatible = "ti,bq24250", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) { .compatible = "ti,bq24251", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) { .compatible = "ti,bq24257", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) MODULE_DEVICE_TABLE(of, bq24257_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) static const struct acpi_device_id bq24257_acpi_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) { "BQ242500", BQ24250 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) { "BQ242510", BQ24251 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) { "BQ242570", BQ24257 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) MODULE_DEVICE_TABLE(acpi, bq24257_acpi_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) static struct i2c_driver bq24257_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) .name = "bq24257-charger",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) .of_match_table = of_match_ptr(bq24257_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) .acpi_match_table = ACPI_PTR(bq24257_acpi_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) .pm = &bq24257_pm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) .probe = bq24257_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) .remove = bq24257_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) .id_table = bq24257_i2c_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) module_i2c_driver(bq24257_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) MODULE_AUTHOR("Laurentiu Palcu <laurentiu.palcu@intel.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) MODULE_DESCRIPTION("bq24257 charger driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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