From 37be4bf4868656ef23ffb15e4607cff2059362ac Mon Sep 17 00:00:00 2001 From: leeboby Date: Mon, 12 Aug 2024 17:18:05 +0800 Subject: [PATCH] drivers: power: supply: support bq25713 --- .../dts/rockchip/rk3588-orangepi-ai-max.dts | 30 + drivers/power/supply/Kconfig | 6 + drivers/power/supply/Makefile | 1 + drivers/power/supply/bq25713_charger.c | 1104 +++++++++++++++++ include/linux/power/bq25713-charge.h | 30 + 5 files changed, 1171 insertions(+) create mode 100644 drivers/power/supply/bq25713_charger.c create mode 100644 include/linux/power/bq25713-charge.h diff --git a/arch/arm64/boot/dts/rockchip/rk3588-orangepi-ai-max.dts b/arch/arm64/boot/dts/rockchip/rk3588-orangepi-ai-max.dts index 4c482703302c..ef2ac302db24 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-orangepi-ai-max.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-orangepi-ai-max.dts @@ -185,6 +185,36 @@ }; }; +&i2c1 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&i2c1m2_xfer>; +}; + +&i2c3 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&i2c3m0_xfer>; + + bq25713: bq25713@6b { + status = "okay"; + compatible = "ti,bq25713-aimax"; + reg = <0x6b>; + + ti,charge-current = <2000000>; + ti,max-input-voltage = <21000000>; + ti,max-input-current = <3000000>; + ti,max-charge-voltage = <12600000>; + ti,input-current = <500000>; + ti,input-current-sdp = <500000>; + ti,input-current-dcp = <2000000>; + ti,input-current-cdp = <2000000>; + ti,minimum-sys-voltage = <7400000>; + ti,otg-voltage = <5000000>; + ti,otg-current = <1500000>; + }; +}; + /*** 40 pins ***/ &i2c2 { status = "disabled"; diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index 2d1539d25f1b..f5ba1c8d6930 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -678,6 +678,12 @@ config CHARGER_BQ25700 help Say Y to enable support for the TI BQ25700 battery charger. +config CHARGER_BQ25713 + tristate "TI BQ25713 battery charger driver" + depends on REGMAP_I2C + help + Say Y to enable support for the TI BQ25713 battery charger. + config CHARGER_BQ25890 tristate "TI BQ25890 battery charger driver" depends on I2C diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile index 4d1d8cbaf1c4..ccbceafeb5fa 100644 --- a/drivers/power/supply/Makefile +++ b/drivers/power/supply/Makefile @@ -87,6 +87,7 @@ obj-$(CONFIG_CHARGER_BQ24257) += bq24257_charger.o obj-$(CONFIG_CHARGER_BQ24735) += bq24735-charger.o obj-$(CONFIG_CHARGER_BQ2515X) += bq2515x_charger.o obj-$(CONFIG_CHARGER_BQ25700) += bq25700_charger.o +obj-$(CONFIG_CHARGER_BQ25713) += bq25713_charger.o obj-$(CONFIG_CHARGER_BQ25890) += bq25890_charger.o obj-$(CONFIG_CHARGER_BQ25980) += bq25980_charger.o obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o diff --git a/drivers/power/supply/bq25713_charger.c b/drivers/power/supply/bq25713_charger.c new file mode 100644 index 000000000000..2a3b2e1739ca --- /dev/null +++ b/drivers/power/supply/bq25713_charger.c @@ -0,0 +1,1104 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * TI BQ257000 charger driver + + * Copyright (c) 2021 Rockchip Electronics Co. Ltd. + * + * Author: shengfeixu + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int dbg_enable = 1; +module_param_named(dbg_level, dbg_enable, int, 0644); + +#define DBG(args...) \ + do { \ + if (1) { \ + pr_info(args); \ + } \ + } while (0) + +#define bq25713_info(fmt, args...) pr_info("bq25713: "fmt, ##args) + +#define BQ25700_MANUFACTURER "Texas Instruments" +#define BQ25700_ID 0x59 +#define BQ25703_ID 0x58 +#define BQ25713_ID 0x88 + +#define DEFAULT_INPUTVOL ((5000 - 1280) * 1000) +#define MAX_INPUTVOLTAGE 24000000 +#define MAX_INPUTCURRENT 6350000 +#define MAX_CHARGEVOLTAGE 16800000 +#define MAX_CHARGECURRETNT 8128000 +#define MAX_OTGVOLTAGE 20800000 +#define MIN_OTGVOLTAGE 4280000 +#define MAX_OTGCURRENT 6350000 + +enum bq25713_fields { + EN_LWPWR, WDTWR_ADJ, IDPM_AUTO_DISABLE, + EN_OOA, PWM_FREQ, EN_LEARN, IADP_GAIN, IBAT_GAIN, + EN_LDO, EN_IDPM, CHRG_INHIBIT,/*reg12h*/ + CHARGE_CURRENT,/*reg14h*/ + MAX_CHARGE_VOLTAGE,/*reg15h*/ + + AC_STAT, ICO_DONE, IN_VINDPM, IN_IINDPM, IN_FCHRG, IN_PCHRG, IN_OTG, + F_ACOV, F_BATOC, F_ACOC, SYSOVP_STAT, F_LATCHOFF, F_OTG_OVP, F_OTG_OCP, + /*reg20h*/ + STAT_COMP, STAT_ICRIT, STAT_INOM, STAT_IDCHG, STAT_VSYS, STAT_BAT_REMOV, + STAT_ADP_REMOV,/*reg21h*/ + INPUT_CURRENT_DPM,/*reg22h*/ + OUTPUT_INPUT_VOL, OUTPUT_SYS_POWER,/*reg23h*/ + OUTPUT_DSG_CUR, OUTPUT_CHG_CUR,/*reg24h*/ + OUTPUT_INPUT_CUR, OUTPUT_CMPIN_VOL,/*reg25h*/ + OUTPUT_SYS_VOL, OUTPUT_BAT_VOL,/*reg26h*/ + + EN_IBAT, EN_PROCHOT_LPWR, EN_PSYS, RSNS_RAC, RSNS_RSR, + PSYS_RATIO, CMP_REF, CMP_POL, CMP_DEG, FORCE_LATCHOFF, + EN_SHIP_DCHG, AUTO_WAKEUP_EN, /*reg30h*/ + PKPWR_TOVLD_REG, EN_PKPWR_IDPM, EN_PKPWR_VSYS, PKPWER_OVLD_STAT, + PKPWR_RELAX_STAT, PKPWER_TMAX, EN_EXTILIM, EN_ICHG_IDCHG, Q2_OCP, + ACX_OCP, EN_ACOC, ACOC_VTH, EN_BATOC, BATCOC_VTH,/*reg31h*/ + EN_HIZ, RESET_REG, RESET_VINDPM, EN_OTG, EN_ICO_MODE, BATFETOFF_HIZ, + PSYS_OTG_IDCHG,/*reg32h*/ + ILIM2_VTH, ICRIT_DEG, VSYS_VTH, EN_PROCHOT_EXT, PROCHOT_WIDTH, + PROCHOT_CLEAR, INOM_DEG,/*reg33h*/ + IDCHG_VTH, IDCHG_DEG, PROCHOT_PROFILE_COMP, PROCHOT_PROFILE_ICRIT, + PROCHOT_PROFILE_INOM, PROCHOT_PROFILE_IDCHG, + PROCHOT_PROFILE_VSYS, PROCHOT_PROFILE_BATPRES, PROCHOT_PROFILE_ACOK, + /*reg34h*/ + ADC_CONV, ADC_START, ADC_FULLSCALE, EN_ADC_CMPIN, EN_ADC_VBUS, + EN_ADC_PSYS, EN_ADC_IIN, EN_ADC_IDCHG, EN_ADC_ICHG, EN_ADC_VSYS, + EN_ADC_VBAT,/*reg35h*/ + + OTG_VOLTAGE,/*reg3bh*/ + OTG_CURRENT,/*reg3ch*/ + INPUT_VOLTAGE,/*reg3dh*/ + MIN_SYS_VOTAGE,/*reg3eh*/ + INPUT_CURRENT,/*reg3fh*/ + + MANUFACTURE_ID,/*regfeh*/ + DEVICE_ID,/*regffh*/ + + F_MAX_FIELDS +}; + +enum charger_t { + USB_TYPE_UNKNOWN_CHARGER, + USB_TYPE_NONE_CHARGER, + USB_TYPE_USB_CHARGER, + USB_TYPE_AC_CHARGER, + USB_TYPE_CDP_CHARGER, + DC_TYPE_DC_CHARGER, + DC_TYPE_NONE_CHARGER, +}; + +enum usb_status_t { + USB_STATUS_NONE, + USB_STATUS_USB, + USB_STATUS_AC, + USB_STATUS_PD, + USB_STATUS_OTG, +}; + +enum tpyec_port_t { + USB_TYPEC_0, + USB_TYPEC_1, +}; + +/* initial field values, converted to register values */ +struct bq25713_init_data { + u32 ichg; /* charge current */ + u32 max_chg_vol; /*max charge voltage*/ + u32 input_voltage; /*input voltage*/ + u32 input_current; /*input current*/ + u32 input_current_sdp; + u32 input_current_dcp; + u32 input_current_cdp; + u32 sys_min_voltage; /*mininum system voltage*/ + u32 otg_voltage; /*OTG voltage*/ + u32 otg_current; /*OTG current*/ +}; + +struct bq25713_state { + u8 ac_stat; + u8 ico_done; + u8 in_vindpm; + u8 in_iindpm; + u8 in_fchrg; + u8 in_pchrg; + u8 in_otg; + u8 fault_acov; + u8 fault_batoc; + u8 fault_acoc; + u8 sysovp_stat; + u8 fault_latchoff; + u8 fault_otg_ovp; + u8 fault_otg_ocp; +}; + +struct bq25713_device { + struct i2c_client *client; + struct device *dev; + struct power_supply *supply_charger; + char model_name[I2C_NAME_SIZE]; + unsigned int irq; + bool first_time; + bool charger_health_valid; + bool battery_health_valid; + bool battery_status_valid; + int automode; + struct notifier_block nb; + struct bq2570x_platform_data plat_data; + struct device_node *notify_node; + struct workqueue_struct *usb_charger_wq; + struct workqueue_struct *dc_charger_wq; + struct workqueue_struct *finish_sig_wq; + struct delayed_work usb_work; + struct delayed_work host_work; + struct delayed_work discnt_work; + struct delayed_work usb_work1; + struct delayed_work host_work1; + struct delayed_work discnt_work1; + struct delayed_work irq_work; + struct notifier_block cable_cg_nb; + struct notifier_block cable_host_nb; + struct notifier_block cable_cg_nb1; + struct notifier_block cable_host_nb1; + struct extcon_dev *cable_edev; + struct extcon_dev *cable_edev_1; + int typec0_status; + int typec1_status; + struct gpio_desc *typec0_enable_io; + struct gpio_desc *typec1_enable_io; + struct gpio_desc *typec0_discharge_io; + struct gpio_desc *typec1_discharge_io; + struct gpio_desc *otg_mode_en_io; + + struct regulator_dev *otg_vbus_reg; + struct regmap *regmap; + struct regmap_field *rmap_fields[F_MAX_FIELDS]; + int chip_id; + struct bq25713_init_data init_data; + struct bq25713_state state; + int pd_charge_only; + unsigned int bc_event; + bool usb_bc; +}; + +static const struct reg_field bq25703_reg_fields[] = { + /*REG00*/ + [EN_LWPWR] = REG_FIELD(0x00, 15, 15), + [WDTWR_ADJ] = REG_FIELD(0x00, 13, 14), + [IDPM_AUTO_DISABLE] = REG_FIELD(0x00, 12, 12), + [EN_OOA] = REG_FIELD(0x00, 10, 10), + [PWM_FREQ] = REG_FIELD(0x00, 9, 9), + [EN_LEARN] = REG_FIELD(0x00, 5, 5), + [IADP_GAIN] = REG_FIELD(0x00, 4, 4), + [IBAT_GAIN] = REG_FIELD(0x00, 3, 3), + [EN_LDO] = REG_FIELD(0x00, 2, 2), + [EN_IDPM] = REG_FIELD(0x00, 1, 1), + [CHRG_INHIBIT] = REG_FIELD(0x00, 0, 0), + /*REG0x02*/ + [CHARGE_CURRENT] = REG_FIELD(0x02, 6, 12), + /*REG0x04*/ + [MAX_CHARGE_VOLTAGE] = REG_FIELD(0x04, 4, 14), + /*REG20*/ + [AC_STAT] = REG_FIELD(0x20, 15, 15), + [ICO_DONE] = REG_FIELD(0x20, 14, 14), + [IN_VINDPM] = REG_FIELD(0x20, 12, 12), + [IN_IINDPM] = REG_FIELD(0x20, 11, 11), + [IN_FCHRG] = REG_FIELD(0x20, 10, 10), + [IN_PCHRG] = REG_FIELD(0x20, 9, 9), + [IN_OTG] = REG_FIELD(0x20, 8, 8), + [F_ACOV] = REG_FIELD(0x20, 7, 7), + [F_BATOC] = REG_FIELD(0x20, 6, 6), + [F_ACOC] = REG_FIELD(0x20, 5, 5), + [SYSOVP_STAT] = REG_FIELD(0x20, 4, 4), + [F_LATCHOFF] = REG_FIELD(0x20, 2, 2), + [F_OTG_OVP] = REG_FIELD(0x20, 1, 1), + [F_OTG_OCP] = REG_FIELD(0x20, 0, 0), + /*REG22*/ + [STAT_COMP] = REG_FIELD(0x22, 6, 6), + [STAT_ICRIT] = REG_FIELD(0x22, 5, 5), + [STAT_INOM] = REG_FIELD(0x22, 4, 4), + [STAT_IDCHG] = REG_FIELD(0x22, 3, 3), + [STAT_VSYS] = REG_FIELD(0x22, 2, 2), + [STAT_BAT_REMOV] = REG_FIELD(0x22, 1, 1), + [STAT_ADP_REMOV] = REG_FIELD(0x22, 0, 0), + /*REG24*/ + [INPUT_CURRENT_DPM] = REG_FIELD(0x24, 8, 14), + + /*REG26H*/ + [OUTPUT_INPUT_VOL] = REG_FIELD(0x26, 8, 15), + [OUTPUT_SYS_POWER] = REG_FIELD(0x26, 0, 7), + /*REG28H*/ + [OUTPUT_DSG_CUR] = REG_FIELD(0x28, 8, 14), + [OUTPUT_CHG_CUR] = REG_FIELD(0x28, 0, 6), + /*REG2aH*/ + [OUTPUT_INPUT_CUR] = REG_FIELD(0x2a, 8, 15), + [OUTPUT_CMPIN_VOL] = REG_FIELD(0x2a, 0, 7), + /*REG2cH*/ + [OUTPUT_SYS_VOL] = REG_FIELD(0x2c, 8, 15), + [OUTPUT_BAT_VOL] = REG_FIELD(0x2c, 0, 6), + + /*REG30*/ + [EN_IBAT] = REG_FIELD(0x30, 15, 15), + [EN_PROCHOT_LPWR] = REG_FIELD(0x30, 13, 14), + [EN_PSYS] = REG_FIELD(0x30, 12, 12), + [RSNS_RAC] = REG_FIELD(0x30, 11, 11), + [RSNS_RSR] = REG_FIELD(0x30, 10, 10), + [PSYS_RATIO] = REG_FIELD(0x30, 9, 9), + [CMP_REF] = REG_FIELD(0x30, 7, 7), + [CMP_POL] = REG_FIELD(0x30, 6, 6), + [CMP_DEG] = REG_FIELD(0x30, 4, 5), + [FORCE_LATCHOFF] = REG_FIELD(0x30, 3, 3), + [EN_SHIP_DCHG] = REG_FIELD(0x30, 1, 1), + [AUTO_WAKEUP_EN] = REG_FIELD(0x30, 0, 0), + /*REG32*/ + [PKPWR_TOVLD_REG] = REG_FIELD(0x32, 14, 15), + [EN_PKPWR_IDPM] = REG_FIELD(0x32, 13, 13), + [EN_PKPWR_VSYS] = REG_FIELD(0x32, 12, 12), + [PKPWER_OVLD_STAT] = REG_FIELD(0x32, 11, 11), + [PKPWR_RELAX_STAT] = REG_FIELD(0x32, 10, 10), + [PKPWER_TMAX] = REG_FIELD(0x32, 8, 9), + [EN_EXTILIM] = REG_FIELD(0x32, 7, 7), + [EN_ICHG_IDCHG] = REG_FIELD(0x32, 6, 6), + [Q2_OCP] = REG_FIELD(0x32, 5, 5), + [ACX_OCP] = REG_FIELD(0x32, 4, 4), + [EN_ACOC] = REG_FIELD(0x32, 3, 3), + [ACOC_VTH] = REG_FIELD(0x32, 2, 2), + [EN_BATOC] = REG_FIELD(0x32, 1, 1), + [BATCOC_VTH] = REG_FIELD(0x32, 0, 0), + /*REG34*/ + [EN_HIZ] = REG_FIELD(0x34, 15, 15), + [RESET_REG] = REG_FIELD(0x34, 14, 14), + [RESET_VINDPM] = REG_FIELD(0x34, 13, 13), + [EN_OTG] = REG_FIELD(0x34, 12, 12), + [EN_ICO_MODE] = REG_FIELD(0x34, 11, 11), + [BATFETOFF_HIZ] = REG_FIELD(0x34, 1, 1), + [PSYS_OTG_IDCHG] = REG_FIELD(0x34, 0, 0), + /*REG36*/ + [ILIM2_VTH] = REG_FIELD(0x36, 11, 15), + [ICRIT_DEG] = REG_FIELD(0x36, 9, 10), + [VSYS_VTH] = REG_FIELD(0x36, 6, 7), + [EN_PROCHOT_EXT] = REG_FIELD(0x36, 5, 5), + [PROCHOT_WIDTH] = REG_FIELD(0x36, 3, 4), + [PROCHOT_CLEAR] = REG_FIELD(0x36, 2, 2), + [INOM_DEG] = REG_FIELD(0x36, 1, 1), + /*REG38*/ + [IDCHG_VTH] = REG_FIELD(0x38, 10, 15), + [IDCHG_DEG] = REG_FIELD(0x38, 8, 9), + [PROCHOT_PROFILE_COMP] = REG_FIELD(0x38, 6, 6), + [PROCHOT_PROFILE_ICRIT] = REG_FIELD(0x38, 5, 5), + [PROCHOT_PROFILE_INOM] = REG_FIELD(0x38, 4, 4), + [PROCHOT_PROFILE_IDCHG] = REG_FIELD(0x38, 3, 3), + [PROCHOT_PROFILE_VSYS] = REG_FIELD(0x38, 2, 2), + [PROCHOT_PROFILE_BATPRES] = REG_FIELD(0x38, 1, 1), + [PROCHOT_PROFILE_ACOK] = REG_FIELD(0x38, 0, 0), + /*REG3a*/ + [ADC_CONV] = REG_FIELD(0x3a, 15, 15), + [ADC_START] = REG_FIELD(0x3a, 14, 14), + [ADC_FULLSCALE] = REG_FIELD(0x3a, 13, 13), + [EN_ADC_CMPIN] = REG_FIELD(0x3a, 7, 7), + [EN_ADC_VBUS] = REG_FIELD(0x3a, 6, 6), + [EN_ADC_PSYS] = REG_FIELD(0x3a, 5, 5), + [EN_ADC_IIN] = REG_FIELD(0x3a, 4, 4), + [EN_ADC_IDCHG] = REG_FIELD(0x3a, 3, 3), + [EN_ADC_ICHG] = REG_FIELD(0x3a, 2, 2), + [EN_ADC_VSYS] = REG_FIELD(0x3a, 1, 1), + [EN_ADC_VBAT] = REG_FIELD(0x3a, 0, 0), + + /*REG06*/ + [OTG_VOLTAGE] = REG_FIELD(0x06, 6, 13), + /*REG08*/ + [OTG_CURRENT] = REG_FIELD(0x08, 8, 14), + /*REG0a*/ + [INPUT_VOLTAGE] = REG_FIELD(0x0a, 6, 13), + /*REG0C*/ + [MIN_SYS_VOTAGE] = REG_FIELD(0x0c, 8, 13), + /*REG0e*/ + [INPUT_CURRENT] = REG_FIELD(0x0e, 8, 14), + + /*REG2E*/ + [MANUFACTURE_ID] = REG_FIELD(0x2E, 0, 7), + /*REF2F*/ + [DEVICE_ID] = REG_FIELD(0x2F, 0, 7), +}; + +/* + * Most of the val -> idx conversions can be computed, given the minimum, + * maximum and the step between values. For the rest of conversions, we use + * lookup tables. + */ +enum bq25713_table_ids { + /* range tables */ + TBL_ICHG, + TBL_CHGMAX, + TBL_INPUTVOL, + TBL_INPUTCUR, + TBL_SYSVMIN, + TBL_OTGVOL, + TBL_OTGCUR, + TBL_EXTCON, +}; + +struct bq25713_range { + u32 min; + u32 max; + u32 step; +}; + +struct bq25713_lookup { + const u32 *tbl; + u32 size; +}; + +static const struct bq25713_range sc8886_otg_range = { + .min = 1280000, + .max = 20800000, + .step = 128000, +}; + +static union { + struct bq25713_range rt; + struct bq25713_lookup lt; +} bq25713_tables[] = { + /* range tables */ + [TBL_ICHG] = { .rt = {0, 8128000, 64000} }, + /* uV */ + [TBL_CHGMAX] = { .rt = {0, 19200000, 16000} }, + /* uV max charge voltage*/ + [TBL_INPUTVOL] = { .rt = {3200000, 19520000, 64000} }, + /* uV input charge voltage*/ + [TBL_INPUTCUR] = {.rt = {0, 6350000, 50000} }, + /*uA input current*/ + [TBL_SYSVMIN] = { .rt = {1024000, 16182000, 256000} }, + /* uV min system voltage*/ + [TBL_OTGVOL] = {.rt = {4480000, 20800000, 64000} }, + /*uV OTG volage*/ + [TBL_OTGCUR] = {.rt = {0, 6350000, 50000} }, +}; + +static const struct regmap_range bq25703_readonly_reg_ranges[] = { + regmap_reg_range(0x20, 0x2F), +}; + +static const struct regmap_access_table bq25703_writeable_regs = { + .no_ranges = bq25703_readonly_reg_ranges, + .n_no_ranges = ARRAY_SIZE(bq25703_readonly_reg_ranges), +}; + +static const struct regmap_range bq25703_volatile_reg_ranges[] = { + regmap_reg_range(0x00, 0x0F), + regmap_reg_range(0x20, 0x3B), +}; + +static const struct regmap_access_table bq25703_volatile_regs = { + .yes_ranges = bq25703_volatile_reg_ranges, + .n_yes_ranges = ARRAY_SIZE(bq25703_volatile_reg_ranges), +}; + +static const struct regmap_config bq25703_regmap_config = { + .reg_bits = 8, + .val_bits = 16, + + .max_register = 0x3B, + .cache_type = REGCACHE_RBTREE, + + .wr_table = &bq25703_writeable_regs, + .volatile_table = &bq25703_volatile_regs, + .val_format_endian = REGMAP_ENDIAN_LITTLE, +}; + +static struct bq25713_device *bq25713_charger; + +static int bq25713_field_read(struct bq25713_device *charger, + enum bq25713_fields field_id) +{ + int ret; + int val; + + ret = regmap_field_read(charger->rmap_fields[field_id], &val); + if (ret < 0) + return ret; + + return val; +} + +static int bq25713_field_write(struct bq25713_device *charger, + enum bq25713_fields field_id, unsigned int val) +{ + return regmap_field_write(charger->rmap_fields[field_id], val); +} + +static int bq25713_get_chip_state(struct bq25713_device *charger, + struct bq25713_state *state) +{ + int i, ret; + + struct { + enum bq25713_fields id; + u8 *data; + } state_fields[] = { + {AC_STAT, &state->ac_stat}, + {ICO_DONE, &state->ico_done}, + {IN_VINDPM, &state->in_vindpm}, + {IN_IINDPM, &state->in_iindpm}, + {IN_FCHRG, &state->in_fchrg}, + {IN_PCHRG, &state->in_pchrg}, + {IN_OTG, &state->in_otg}, + {F_ACOV, &state->fault_acov}, + {F_BATOC, &state->fault_batoc}, + {F_ACOC, &state->fault_acoc}, + {SYSOVP_STAT, &state->sysovp_stat}, + {F_LATCHOFF, &state->fault_latchoff}, + {F_OTG_OVP, &state->fault_otg_ovp}, + {F_OTG_OCP, &state->fault_otg_ocp}, + }; + + for (i = 0; i < ARRAY_SIZE(state_fields); i++) { + ret = bq25713_field_read(charger, state_fields[i].id); + if (ret < 0) + return ret; + + *state_fields[i].data = ret; + } + + return 0; +} + +static int bq25703_dump_regs(struct bq25713_device *charger) +{ + int i = 0; + u32 val = 0; + struct bq25713_state state; + + for (i = 0; i < 0x10; i += 0x02) { + regmap_read(charger->regmap, i, &val); + DBG("REG0x%x : 0x%x\n", i, val); + } + for (i = 0x20; i < 0x3C; i += 0x02) { + regmap_read(charger->regmap, i, &val); + DBG("REG0x%x : 0x%x\n", i, val); + } + + DBG("battery charge current: %dmA\n", + bq25713_field_read(charger, OUTPUT_DSG_CUR) * 64); + DBG("battery discharge current: %dmA\n", + bq25713_field_read(charger, OUTPUT_CHG_CUR) * 256); + DBG("VSYS volatge: %dmV\n", + 2880 + bq25713_field_read(charger, OUTPUT_SYS_VOL) * 64); + DBG("BAT volatge: %dmV\n", + 2880 + bq25713_field_read(charger, OUTPUT_BAT_VOL) * 64); + + DBG("SET CHARGE_CURRENT: %dmA\n", + bq25713_field_read(charger, CHARGE_CURRENT) * 64); + DBG("MAX_CHARGE_VOLTAGE: %dmV\n", + bq25713_field_read(charger, MAX_CHARGE_VOLTAGE) * 16); + DBG(" INPUT_VOLTAGE: %dmV\n", + 3200 + bq25713_field_read(charger, INPUT_VOLTAGE) * 64); + DBG(" INPUT_CURRENT: %dmA\n", + bq25713_field_read(charger, INPUT_CURRENT) * 50); + DBG(" MIN_SYS_VOTAGE: %dmV\n", + 1024 + bq25713_field_read(charger, MIN_SYS_VOTAGE) * 256); + bq25713_get_chip_state(charger, &state); + + DBG("status:\n"); + DBG("AC_STAT: %d\n", state.ac_stat); + DBG("ICO_DONE: %d\n", state.ico_done); + DBG("IN_VINDPM: %d\n", state.in_vindpm); + DBG("IN_IINDPM: %d\n", state.in_iindpm); + DBG("IN_FCHRG: %d\n", state.in_fchrg); + DBG("IN_PCHRG: %d\n", state.in_pchrg); + DBG("IN_OTG: %d\n", state.in_otg); + DBG("F_ACOV: %d\n", state.fault_acov); + DBG("F_BATOC: %d\n", state.fault_batoc); + DBG("F_ACOC: %d\n", state.fault_acoc); + DBG("SYSOVP_STAT: %d\n", state.sysovp_stat); + DBG("F_LATCHOFF: %d\n", state.fault_latchoff); + DBG("F_OTGOVP: %d\n", state.fault_otg_ovp); + DBG("F_OTGOCP: %d\n", state.fault_otg_ocp); + + return 0; +} + +static ssize_t bq25713_charge_info_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct bq25713_device *charger = dev_get_drvdata(dev); + + if ((charger->chip_id & 0xff) == BQ25713_ID) + bq25703_dump_regs(charger); + + return 0; +} + +static struct device_attribute bq25713_charger_attr[] = { + __ATTR(charge_info, 0664, bq25713_charge_info_show, NULL), +}; + +static void bq25713_init_sysfs(struct bq25713_device *charger) +{ + int i, ret; + + for (i = 0; i < ARRAY_SIZE(bq25713_charger_attr); i++) { + ret = sysfs_create_file(&charger->dev->kobj, + &bq25713_charger_attr[i].attr); + if (ret) + dev_err(charger->dev, "create charger node(%s) error\n", + bq25713_charger_attr[i].attr.name); + } +} + +static u32 bq25713_find_idx(u32 value, enum bq25713_table_ids id) +{ + u32 idx; + u32 rtbl_size; + const struct bq25713_range *rtbl = &bq25713_tables[id].rt; + + rtbl_size = (rtbl->max - rtbl->min) / rtbl->step + 1; + + for (idx = 1; + idx < rtbl_size && (idx * rtbl->step + rtbl->min <= value); + idx++) + ; + + return idx - 1; +} + +void bq25713_charger_set_current(unsigned long event, + int current_value) +{ + int idx; + + if (!bq25713_charger) { + pr_err("[%s,%d] bq25713_charger is null\n", __func__, __LINE__); + return; + } + switch (event) { + case CHARGER_CURRENT_EVENT: + idx = bq25713_find_idx(current_value, TBL_ICHG); + bq25713_field_write(bq25713_charger, CHARGE_CURRENT, idx); + break; + + case INPUT_CURRENT_EVENT: + idx = bq25713_find_idx(current_value, TBL_INPUTCUR); + bq25713_field_write(bq25713_charger, INPUT_CURRENT, idx); + break; + + default: + return; + } +} + +static int bq25713_fw_read_u32_props(struct bq25713_device *charger) +{ + int ret; + u32 property; + int i; + struct bq25713_init_data *init = &charger->init_data; + struct { + char *name; + bool optional; + enum bq25713_table_ids tbl_id; + u32 *conv_data; /* holds converted value from given property */ + } props[] = { + /* required properties */ + {"ti,charge-current", false, TBL_ICHG, + &init->ichg}, + {"ti,max-charge-voltage", false, TBL_CHGMAX, + &init->max_chg_vol}, + {"ti,input-current-sdp", false, TBL_INPUTCUR, + &init->input_current_sdp}, + {"ti,input-current-dcp", false, TBL_INPUTCUR, + &init->input_current_dcp}, + {"ti,input-current-cdp", false, TBL_INPUTCUR, + &init->input_current_cdp}, + {"ti,minimum-sys-voltage", false, TBL_SYSVMIN, + &init->sys_min_voltage}, + {"ti,otg-voltage", false, TBL_OTGVOL, + &init->otg_voltage}, + {"ti,otg-current", false, TBL_OTGCUR, + &init->otg_current}, + }; + + /* initialize data for optional properties */ + for (i = 0; i < ARRAY_SIZE(props); i++) { + ret = device_property_read_u32(charger->dev, props[i].name, + &property); + if (ret < 0) { + if (props[i].optional) + continue; + + return ret; + } + + if ((props[i].tbl_id == TBL_ICHG) && + (property > MAX_CHARGECURRETNT)) { + dev_err(charger->dev, "ti,charge-current is error\n"); + return -ENODEV; + } + if ((props[i].tbl_id == TBL_CHGMAX) && + (property > MAX_CHARGEVOLTAGE)) { + dev_err(charger->dev, "ti,max-charge-voltage is error\n"); + return -ENODEV; + } + if ((props[i].tbl_id == TBL_INPUTCUR) && + (property > MAX_INPUTCURRENT)) { + dev_err(charger->dev, "ti,input-current is error\n"); + return -ENODEV; + } + if (props[i].tbl_id == TBL_OTGVOL) { + if (property > MAX_OTGVOLTAGE) { + dev_err(charger->dev, "ti,otg-voltage is error\n"); + return -ENODEV; + }; + } + + if ((props[i].tbl_id == TBL_OTGCUR) && + (property > MAX_OTGCURRENT)) { + dev_err(charger->dev, "ti,otg-current is error\n"); + return -ENODEV; + } + + *props[i].conv_data = bq25713_find_idx(property, + props[i].tbl_id); + DBG("%s, val: %d, tbl_id =%d\n", props[i].name, property, + *props[i].conv_data); + } + + return 0; +} + +static int bq25713_hw_init(struct bq25713_device *charger) +{ + int ret; + int i; + struct bq25713_state state; + + const struct { + enum bq25713_fields id; + u32 value; + } init_data[] = { + {CHARGE_CURRENT, charger->init_data.ichg}, + {MAX_CHARGE_VOLTAGE, charger->init_data.max_chg_vol}, + {MIN_SYS_VOTAGE, charger->init_data.sys_min_voltage}, + {OTG_VOLTAGE, charger->init_data.otg_voltage}, + {OTG_CURRENT, charger->init_data.otg_current}, + }; + + /* disable watchdog */ + ret = bq25713_field_write(charger, WDTWR_ADJ, 0); + if (ret < 0) + return ret; + + /* initialize currents/voltages and other parameters */ + for (i = 0; i < ARRAY_SIZE(init_data); i++) { + ret = bq25713_field_write(charger, init_data[i].id, + init_data[i].value); + if (ret < 0) + return ret; + } + + DBG(" CHARGE_CURRENT: %dmA\n", + bq25713_field_read(charger, CHARGE_CURRENT) * 64); + DBG("MAX_CHARGE_VOLTAGE: %dmV\n", + bq25713_field_read(charger, MAX_CHARGE_VOLTAGE) * 16); + DBG(" INPUT_VOLTAGE: %dmV\n", + 3200 + bq25713_field_read(charger, INPUT_VOLTAGE) * 64); + DBG(" INPUT_CURRENT: %dmA\n", + bq25713_field_read(charger, INPUT_CURRENT) * 50); + DBG(" MIN_SYS_VOTAGE: %dmV\n", + 1024 + bq25713_field_read(charger, MIN_SYS_VOTAGE) * 256); + + /* Configure ADC for continuous conversions. This does not enable it. */ + + ret = bq25713_field_write(charger, EN_LWPWR, 0); + if (ret < 0) { + DBG("error: EN_LWPWR\n"); + return ret; + } + + ret = bq25713_field_write(charger, ADC_CONV, 1); + if (ret < 0) { + DBG("error: ADC_CONV\n"); + return ret; + } + + ret = bq25713_field_write(charger, ADC_START, 1); + if (ret < 0) { + DBG("error: ADC_START\n"); + return ret; + } + + ret = bq25713_field_write(charger, ADC_FULLSCALE, 1); + if (ret < 0) { + DBG("error: ADC_FULLSCALE\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_CMPIN, 1); + if (ret < 0) { + DBG("error: EN_ADC_CMPIN\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_VBUS, 1); + if (ret < 0) { + DBG("error: EN_ADC_VBUS\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_PSYS, 1); + if (ret < 0) { + DBG("error: EN_ADC_PSYS\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_IIN, 1); + if (ret < 0) { + DBG("error: EN_ADC_IIN\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_IDCHG, 1); + if (ret < 0) { + DBG("error: EN_ADC_IDCHG\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_ICHG, 1); + if (ret < 0) { + DBG("error: EN_ADC_ICHG\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_VSYS, 1); + if (ret < 0) { + DBG("error: EN_ADC_VSYS\n"); + return ret; + } + + ret = bq25713_field_write(charger, EN_ADC_VBAT, 1); + if (ret < 0) { + DBG("error: EN_ADC_VBAT\n"); + return ret; + } + + bq25713_get_chip_state(charger, &state); + charger->state = state; + + return 0; +} + +static int bq25713_fw_probe(struct bq25713_device *charger) +{ + int ret; + + ret = bq25713_fw_read_u32_props(charger); + if (ret < 0) + return ret; + + return 0; +} + +static void bq25713_enable_charger(struct bq25713_device *charger, + u32 input_current) +{ + bq25713_field_write(charger, INPUT_CURRENT, input_current); + //bq25713_field_write(charger, CHARGE_CURRENT, charger->init_data.ichg); +} + +static enum power_supply_property bq25713_power_supply_props[] = { + POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, + POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, + POWER_SUPPLY_PROP_VOLTAGE_MAX, + POWER_SUPPLY_PROP_CURRENT_MAX, +}; + +static int bq25713_power_supply_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + int ret; + struct bq25713_device *bq = power_supply_get_drvdata(psy); + struct bq25713_state state; + + state = bq->state; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + if (!state.ac_stat) + val->intval = POWER_SUPPLY_STATUS_DISCHARGING; + else if (state.in_fchrg == 1 || + state.in_pchrg == 1) + val->intval = POWER_SUPPLY_STATUS_CHARGING; + else + val->intval = POWER_SUPPLY_STATUS_DISCHARGING; + break; + + case POWER_SUPPLY_PROP_MANUFACTURER: + val->strval = BQ25700_MANUFACTURER; + break; + + case POWER_SUPPLY_PROP_ONLINE: + val->intval = state.ac_stat; + break; + + case POWER_SUPPLY_PROP_HEALTH: + if (!state.fault_acoc && + !state.fault_acov && !state.fault_batoc) + val->intval = POWER_SUPPLY_HEALTH_GOOD; + else if (state.fault_batoc) + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: + /* read measured value */ + ret = bq25713_field_read(bq, OUTPUT_CHG_CUR); + if (ret < 0) + return ret; + + /* converted_val = ADC_val * 64mA */ + val->intval = ret * 64000; + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: + val->intval = bq25713_tables[TBL_ICHG].rt.max; + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: + if (!state.ac_stat) { + val->intval = 0; + break; + } + + /* read measured value */ + ret = bq25713_field_read(bq, OUTPUT_BAT_VOL); + if (ret < 0) + return ret; + + /* converted_val = 2.88V + ADC_val * 64mV */ + val->intval = 2880000 + ret * 64000; + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: + val->intval = bq25713_tables[TBL_CHGMAX].rt.max; + break; + + case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX: + val->intval = bq25713_tables[TBL_INPUTVOL].rt.max; + break; + + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + val->intval = bq25713_tables[TBL_INPUTCUR].rt.max; + break; + + case POWER_SUPPLY_PROP_VOLTAGE_MAX: + ret = bq25713_field_read(bq, MAX_CHARGE_VOLTAGE); + val->intval = ret * 16; + break; + + case POWER_SUPPLY_PROP_CURRENT_MAX: + ret = bq25713_field_read(bq, CHARGE_CURRENT); + val->intval = ret * 64; + break; + + default: + return -EINVAL; + } + + return 0; +} + +static char *bq25713_charger_supplied_to[] = { + "charger", +}; + +static const struct power_supply_desc bq25713_power_supply_desc = { + .name = "bq25713-charger", + .type = POWER_SUPPLY_TYPE_USB, + .properties = bq25713_power_supply_props, + .num_properties = ARRAY_SIZE(bq25713_power_supply_props), + .get_property = bq25713_power_supply_get_property, +}; + +static int bq25713_power_supply_init(struct bq25713_device *charger) +{ + struct power_supply_config psy_cfg = { .drv_data = charger, }; + + psy_cfg.supplied_to = bq25713_charger_supplied_to; + psy_cfg.num_supplicants = ARRAY_SIZE(bq25713_charger_supplied_to); + psy_cfg.of_node = charger->dev->of_node; + + charger->supply_charger = + power_supply_register(charger->dev, + &bq25713_power_supply_desc, + &psy_cfg); + + return PTR_ERR_OR_ZERO(charger->supply_charger); +} + +static int bq25713_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct device *dev = &client->dev; + struct bq25713_device *charger; + int ret = 0; + u32 i = 0; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) + return -EIO; + + charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL); + if (!charger) + return -EINVAL; + + charger->client = client; + charger->dev = dev; + charger->regmap = devm_regmap_init_i2c(client, + &bq25703_regmap_config); + + if (IS_ERR(charger->regmap)) { + dev_err(&client->dev, "Failed to initialize regmap\n"); + return -EINVAL; + } + + for (i = 0; i < ARRAY_SIZE(bq25703_reg_fields); i++) { + const struct reg_field *reg_fields = bq25703_reg_fields; + + charger->rmap_fields[i] = + devm_regmap_field_alloc(dev, + charger->regmap, + reg_fields[i]); + if (IS_ERR(charger->rmap_fields[i])) { + dev_err(dev, "cannot allocate regmap field\n"); + return PTR_ERR(charger->rmap_fields[i]); + } + } + i2c_set_clientdata(client, charger); + + /*read chip id. Confirm whether to support the chip*/ + charger->chip_id = bq25713_field_read(charger, DEVICE_ID); + if (charger->chip_id < 0) { + dev_err(dev, "Cannot read chip ID.\n"); + return charger->chip_id; + } + + if (!dev->platform_data) { + ret = bq25713_fw_probe(charger); + if (ret < 0) { + dev_err(dev, "Cannot read device properties.\n"); + return ret; + } + } else { + return -ENODEV; + } + + /* + * Make sure battery online, otherwise, writing INPUT_CURRENT and + * CHARGE_CURRENT would make system power off + */ + if (of_parse_phandle(charger->dev->of_node, "ti,battery", 0)) { + if (IS_ERR_OR_NULL(power_supply_get_by_phandle( + charger->dev->of_node, + "ti,battery"))) { + dev_info(charger->dev, "No battery found\n"); + return -EPROBE_DEFER; + } + dev_info(charger->dev, "Battery found\n"); + } + + ret = bq25713_hw_init(charger); + if (ret < 0) { + dev_err(dev, "Cannot initialize the chip.\n"); + return ret; + } + + bq25713_init_sysfs(charger); + + bq25713_power_supply_init(charger); + + //bq25713_enable_charger(charger, 0x57); // input current: 4350ma + bq25713_enable_charger(charger, 0x64); // input current: 5000ma + + return ret; +} + +static void bq25713_shutdown(struct i2c_client *client) +{ + return; +} + +#ifdef CONFIG_PM_SLEEP +static int bq25713_pm_suspend(struct device *dev) +{ + return 0; +} + +static int bq25713_pm_resume(struct device *dev) +{ + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(bq25713_pm_ops, bq25713_pm_suspend, bq25713_pm_resume); + +static const struct i2c_device_id bq25713_i2c_ids[] = { + { "bq25713"}, + { }, +}; +MODULE_DEVICE_TABLE(i2c, bq25713_i2c_ids); + +#ifdef CONFIG_OF +static const struct of_device_id bq25713_of_match[] = { + { .compatible = "ti,bq25713-aimax", }, + { }, +}; +MODULE_DEVICE_TABLE(of, bq25713_of_match); +#else +static const struct of_device_id bq25713_of_match[] = { + { }, +}; +#endif + +static struct i2c_driver bq25713_driver = { + .probe = bq25713_probe, + .shutdown = bq25713_shutdown, + .id_table = bq25713_i2c_ids, + .driver = { + .name = "bq25713-charger", + .pm = &bq25713_pm_ops, + .of_match_table = of_match_ptr(bq25713_of_match), + }, +}; +module_i2c_driver(bq25713_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("shengfeixu "); +MODULE_DESCRIPTION("TI bq25713 Charger Driver"); diff --git a/include/linux/power/bq25713-charge.h b/include/linux/power/bq25713-charge.h new file mode 100644 index 000000000000..8aa3d3b3ba32 --- /dev/null +++ b/include/linux/power/bq25713-charge.h @@ -0,0 +1,30 @@ +/* + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __CHARGER_BQ25713_H_ +#define __CHARGER_BQ25713_H_ + +#define CHARGER_CURRENT_EVENT 0x01 +#define INPUT_CURRENT_EVENT 0x02 + +struct bq2570x_platform_data { + int current_limit; /* mA */ + int weak_battery_voltage; /* mV */ + int battery_regulation_voltage; /* mV */ + int charge_current; /* mA */ + int termination_current; /* mA */ + int resistor_sense; /* m ohm */ + const char *notify_device; /* name */ +}; + +void bq25713_charger_set_current(unsigned long event, int current_value); + +#endif /* __CHARGER_BQ25713_H_ */