[PATCH 2/2] power: supply: bq25790: Introduce the BQ25790 charger driver

Dan Murphy
2020-07-30T14:58:51Z

BQ25790 is a highly integrated switch-mode buck-boost charger
for 1-4 cell Li-ion battery and Li-polymer battery.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
drivers/power/supply/Kconfig | 8 +
drivers/power/supply/Makefile | 1 +
drivers/power/supply/bq25790_charger.c | 1117 ++++++++++++++++++++++++
drivers/power/supply/bq25790_charger.h | 150 ++++
4 files changed, 1276 insertions(+)
create mode 100644 drivers/power/supply/bq25790_charger.c
create mode 100644 drivers/power/supply/bq25790_charger.h

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index faf2830aa152..802c644d92be 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -623,6 +623,14 @@ config CHARGER_BQ2515X
rail, ADC for battery and system monitoring, and push-button
controller.

+config CHARGER_BQ25790
+ tristate "TI BQ25790 battery charger driver"
+ depends on I2C
+ depends on GPIOLIB || COMPILE_TEST
+ select REGMAP_I2C
+ help
+ Say Y to enable support for the TI BQ25790 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 b3c694a65114..ae269b9f624b 100644
--- a/drivers/power/supply/Makefile
+++ b/drivers/power/supply/Makefile
@@ -84,6 +84,7 @@ obj-$(CONFIG_CHARGER_BQ24257) += bq24257_charger.o
obj-$(CONFIG_CHARGER_BQ24735) += bq24735-charger.o
obj-$(CONFIG_CHARGER_BQ2515X) += bq2515x_charger.o
obj-$(CONFIG_CHARGER_BQ25890) += bq25890_charger.o
+obj-$(CONFIG_CHARGER_BQ25790) += bq25790_charger.o
obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o
obj-$(CONFIG_CHARGER_TPS65090) += tps65090-charger.o
obj-$(CONFIG_CHARGER_TPS65217) += tps65217_charger.o
diff --git a/drivers/power/supply/bq25790_charger.c b/drivers/power/supply/bq25790_charger.c
new file mode 100644
index 000000000000..92fa859ef55c
--- /dev/null
+++ b/drivers/power/supply/bq25790_charger.c
@@ -0,0 +1,1117 @@
+// SPDX-License-Identifier: GPL-2.0
+// BQ25790 driver
+// Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/power_supply.h>
+#include <linux/regmap.h>
+#include <linux/types.h>
+#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/usb/phy.h>
+
+#include <linux/acpi.h>
+#include <linux/of.h>
+
+#include "bq25790_charger.h"
+
+#define BQ25790_NUM_WD_VAL 8
+
+struct bq25790_init_data {
+ u32 ichg;
+ u32 ilim;
+ u32 vreg;
+ u32 iterm;
+ u32 iprechg;
+ u32 vlim;
+ u32 ichg_max;
+ u32 vreg_max;
+};
+
+struct bq25790_state {
+ bool online;
+ u8 chrg_status;
+ u8 chrg_type;
+ u8 health;
+ u8 chrg_fault;
+ u8 vsys_status;
+ u8 vbus_status;
+ u8 fault_0;
+ u8 fault_1;
+ u32 vbat_adc;
+ u32 vbus_adc;
+ u32 ibat_adc;
+};
+
+struct bq25790_device {
+ struct i2c_client *client;
+ struct device *dev;
+ struct power_supply *charger;
+ struct power_supply *battery;
+ struct mutex lock;
+
+ struct usb_phy *usb2_phy;
+ struct usb_phy *usb3_phy;
+ struct notifier_block usb_nb;
+ struct work_struct usb_work;
+ unsigned long usb_event;
+ struct regmap *regmap;
+
+ char model_name[I2C_NAME_SIZE];
+ int device_id;
+
+ struct bq25790_init_data init_data;
+ struct bq25790_state state;
+ int watchdog_timer;
+};
+
+static struct reg_default bq25790_reg_defs[] = {
+ {BQ25790_INPUT_V_LIM, 0x24},
+ {BQ25790_INPUT_I_LIM_MSB, 0x01},
+ {BQ25790_INPUT_I_LIM_LSB, 0x2c},
+ {BQ25790_PRECHRG_CTRL, 0xc3},
+ {BQ25790_TERM_CTRL, 0x5},
+ {BQ25790_VOTG_REG, 0xdc},
+ {BQ25790_IOTG_REG, 0x4b},
+ {BQ25790_TIMER_CTRL, 0x3d},
+ {BQ25790_CHRG_CTRL_0, 0xa2},
+ {BQ25790_CHRG_CTRL_1, 0x85},
+ {BQ25790_CHRG_CTRL_2, 0x40},
+ {BQ25790_CHRG_CTRL_3, 0x12},
+ {BQ25790_CHRG_CTRL_5, 0x16},
+ {BQ25790_MPPT_CTRL, 0xaa},
+ {BQ25790_TEMP_CTRL, 0xc0},
+ {BQ25790_NTC_CTRL_0, 0x7a},
+ {BQ25790_NTC_CTRL_1, 0x54},
+ {BQ25790_ICO_I_LIM, 0x0},
+ {BQ25790_CHRG_STAT_0, 0x0},
+ {BQ25790_CHRG_STAT_1, 0x0},
+ {BQ25790_CHRG_STAT_2, 0x0},
+ {BQ25790_CHRG_STAT_3, 0x0},
+ {BQ25790_CHRG_STAT_4, 0x0},
+ {BQ25790_FAULT_STAT_0, 0x0},
+ {BQ25790_FAULT_STAT_1, 0x0},
+ {BQ25790_CHRG_FLAG_0, 0x0},
+ {BQ25790_CHRG_FLAG_1, 0x0},
+ {BQ25790_CHRG_FLAG_2, 0x0},
+ {BQ25790_CHRG_FLAG_3, 0x0},
+ {BQ25790_FAULT_FLAG_0, 0x0},
+ {BQ25790_FAULT_FLAG_1, 0x0},
+ {BQ25790_CHRG_MSK_0, 0x0},
+ {BQ25790_CHRG_MSK_1, 0x0},
+ {BQ25790_CHRG_MSK_2, 0x0},
+ {BQ25790_CHRG_MSK_3, 0x0},
+ {BQ25790_FAULT_MSK_0, 0x0},
+ {BQ25790_FAULT_MSK_1, 0x0},
+ {BQ25790_ADC_CTRL, 0x30},
+ {BQ25790_FN_DISABE_0, 0x0},
+ {BQ25790_FN_DISABE_1, 0x0},
+ {BQ25790_ADC_IBUS, 0x0},
+ {BQ25790_ADC_IBAT_MSB, 0x0},
+ {BQ25790_ADC_IBAT_LSB, 0x0},
+ {BQ25790_ADC_VBUS_MSB, 0x0},
+ {BQ25790_ADC_VBUS_LSB, 0x0},
+ {BQ25790_ADC_VAC1, 0x0},
+ {BQ25790_ADC_VAC2, 0x0},
+ {BQ25790_ADC_VBAT_MSB, 0x0},
+ {BQ25790_ADC_VBAT_LSB, 0x0},
+ {BQ25790_ADC_VBUS_MSB, 0x0},
+ {BQ25790_ADC_VBUS_LSB, 0x0},
+ {BQ25790_ADC_TS, 0x0},
+ {BQ25790_ADC_TDIE, 0x0},
+ {BQ25790_ADC_DP, 0x0},
+ {BQ25790_ADC_DM, 0x0},
+ {BQ25790_DPDM_DRV, 0x0},
+ {BQ25790_PART_INFO, 0x0},
+};
+
+static int bq25790_watchdog_time[BQ25790_NUM_WD_VAL] = {0, 500, 1000, 2000,
+ 20000, 40000, 80000,
+ 160000};
+
+static enum power_supply_usb_type bq25790_usb_type[] = {
+ POWER_SUPPLY_USB_TYPE_PD_DRP,
+ POWER_SUPPLY_USB_TYPE_SDP,
+ POWER_SUPPLY_USB_TYPE_CDP,
+ POWER_SUPPLY_USB_TYPE_DCP,
+ POWER_SUPPLY_USB_TYPE_UNKNOWN,
+};
+
+static int bq25790_usb_notifier(struct notifier_block *nb, unsigned long val,
+ void *priv)
+{
+ struct bq25790_device *bq =
+ container_of(nb, struct bq25790_device, usb_nb);
+
+ bq->usb_event = val;
+ queue_work(system_power_efficient_wq, &bq->usb_work);
+
+ return NOTIFY_OK;
+}
+
+static void bq25790_usb_work(struct work_struct *data)
+{
+ struct bq25790_device *bq =
+ container_of(data, struct bq25790_device, usb_work);
+
+ switch (bq->usb_event) {
+ case USB_EVENT_ID:
+ break;
+
+ case USB_EVENT_NONE:
+ power_supply_changed(bq->charger);
+ break;
+ }
+
+ return;
+
+ dev_err(bq->dev, "Error switching to charger mode.\n");
+}
+
+static int bq25790_get_vbat_adc(struct bq25790_device *bq)
+{
+ int ret;
+ int vbat_adc_lsb, vbat_adc_msb;
+ u16 vbat_adc;
+
+ ret = regmap_read(bq->regmap, BQ25790_ADC_VBAT_MSB, &vbat_adc_msb);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_ADC_VBAT_LSB, &vbat_adc_lsb);
+ if (ret)
+ return ret;
+
+ vbat_adc = (vbat_adc_msb << 8) | vbat_adc_lsb;
+
+ return vbat_adc * BQ25790_ADC_VOLT_STEP_uV;
+}
+
+static int bq25790_get_vbus_adc(struct bq25790_device *bq)
+{
+ int ret;
+ int vbus_adc_lsb, vbus_adc_msb;
+ u16 vbus_adc;
+
+ ret = regmap_update_bits(bq->regmap, BQ25790_ADC_CTRL,
+ BQ25790_ADC_EN, BQ25790_ADC_EN);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_ADC_VBUS_MSB, &vbus_adc_msb);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_ADC_VBUS_LSB, &vbus_adc_lsb);
+ if (ret)
+ return ret;
+
+ vbus_adc = (vbus_adc_msb << 8) | vbus_adc_lsb;
+
+ return vbus_adc * BQ25790_ADC_VOLT_STEP_uV;
+}
+
+static int bq25790_get_ibat_adc(struct bq25790_device *bq)
+{
+ int ret;
+ int ibat_adc_lsb, ibat_adc_msb;
+ u16 ibat_adc;
+
+ ret = regmap_read(bq->regmap, BQ25790_ADC_IBAT_MSB, &ibat_adc_msb);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_ADC_IBAT_LSB, &ibat_adc_lsb);
+ if (ret)
+ return ret;
+
+ ibat_adc = (ibat_adc_msb << 8) | ibat_adc_lsb;
+
+ return ibat_adc * BQ25790_ADC_CURR_STEP_uA;
+}
+
+static int bq25790_get_term_curr(struct bq25790_device *bq)
+{
+ int ret;
+ int reg_val;
+
+ ret = regmap_read(bq->regmap, BQ25790_TERM_CTRL, &reg_val);
+ if (ret)
+ return ret;
+
+ reg_val &= BQ25790_TERMCHRG_CUR_MASK;
+
+ return reg_val * BQ25790_TERMCHRG_CURRENT_STEP_uA;
+}
+
+static int bq25790_get_prechrg_curr(struct bq25790_device *bq)
+{
+ int ret;
+ int reg_val;
+
+ ret = regmap_read(bq->regmap, BQ25790_PRECHRG_CTRL, &reg_val);
+ if (ret)
+ return ret;
+
+ reg_val &= BQ25790_PRECHRG_CUR_MASK;
+
+ return reg_val * BQ25790_PRECHRG_CURRENT_STEP_uA;
+}
+
+static int bq25790_get_ichg_curr(struct bq25790_device *bq)
+{
+ int ret;
+ int ichg, ichg_lsb, ichg_msb;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_I_LIM_LSB, &ichg_lsb);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_I_LIM_MSB, &ichg_msb);
+ if (ret)
+ return ret;
+
+ ichg = (ichg_msb << 8) | ichg_lsb;
+
+ return ichg * BQ25790_ICHRG_CURRENT_STEP_uA;
+}
+
+static int bq25790_set_term_curr(struct bq25790_device *bq, int term_current)
+{
+ int reg_val;
+
+ if (term_current < BQ25790_TERMCHRG_I_MIN_uA ||
+ term_current > BQ25790_TERMCHRG_I_MAX_uA)
+ return -EINVAL;
+
+ reg_val = term_current / BQ25790_TERMCHRG_CURRENT_STEP_uA;
+
+ return regmap_update_bits(bq->regmap, BQ25790_TERM_CTRL,
+ BQ25790_TERMCHRG_CUR_MASK, reg_val);
+}
+
+static int bq25790_set_prechrg_curr(struct bq25790_device *bq, int pre_current)
+{
+ int reg_val;
+
+ if (pre_current < BQ25790_PRECHRG_I_MIN_uA ||
+ pre_current > BQ25790_PRECHRG_I_MAX_uA)
+ return -EINVAL;
+
+ reg_val = pre_current / BQ25790_PRECHRG_CURRENT_STEP_uA;
+
+ return regmap_update_bits(bq->regmap, BQ25790_PRECHRG_CTRL,
+ BQ25790_PRECHRG_CUR_MASK, reg_val);
+}
+
+static int bq25790_set_ichrg_curr(struct bq25790_device *bq, int chrg_curr)
+{
+ int ret;
+ int ichg, ichg_msb, ichg_lsb;
+
+ if (chrg_curr < BQ25790_ICHRG_I_MIN_uA ||
+ chrg_curr > BQ25790_ICHRG_I_MAX_uA)
+ return -EINVAL;
+
+ ichg = chrg_curr / BQ25790_ICHRG_CURRENT_STEP_uA;
+ ichg_msb = (ichg >> 8) & 0xff;
+ ret = regmap_write(bq->regmap, BQ25790_CHRG_I_LIM_MSB, ichg_msb);
+ if (ret)
+ return ret;
+
+ ichg_lsb = ichg & 0xff;
+
+ return regmap_write(bq->regmap, BQ25790_CHRG_I_LIM_LSB, ichg_lsb);
+}
+
+static int bq25790_set_chrg_volt(struct bq25790_device *bq, int chrg_volt)
+{
+ int vlim_lsb, vlim_msb, vlim;
+ int ret;
+
+ if (chrg_volt < BQ25790_VREG_V_MIN_uV ||
+ chrg_volt > BQ25790_VREG_V_MAX_uV)
+ return -EINVAL;
+
+ vlim = chrg_volt / BQ25790_VREG_V_STEP_uV;
+ vlim_msb = (vlim >> 8) & 0xff;
+ ret = regmap_write(bq->regmap, BQ25790_CHRG_V_LIM_MSB, vlim_msb);
+ if (ret)
+ return ret;
+
+ vlim_lsb = vlim & 0xff;
+
+ return regmap_write(bq->regmap, BQ25790_CHRG_V_LIM_LSB, vlim_lsb);
+}
+
+static int bq25790_get_chrg_volt(struct bq25790_device *bq)
+{
+ int ret;
+ int vlim_lsb, vlim_msb, chrg_volt;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_V_LIM_MSB, &vlim_msb);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_V_LIM_LSB, &vlim_lsb);
+ if (ret)
+ return ret;
+
+ chrg_volt = (vlim_msb << 8) | vlim_lsb;
+
+ return chrg_volt * BQ25790_VREG_V_STEP_uV;
+}
+
+static int bq25790_set_input_volt_lim(struct bq25790_device *bq, int vindpm)
+{
+ int ret;
+ int vlim_lsb, vlim_msb;
+ int vlim;
+
+ if (vindpm < BQ25790_VINDPM_V_MIN_uV ||
+ vindpm > BQ25790_VINDPM_V_MAX_uV)
+ return -EINVAL;
+
+ vlim = vindpm / BQ25790_VINDPM_STEP_uV;
+
+ vlim_msb = (vlim >> 8) & 0xff;
+
+ ret = regmap_write(bq->regmap, BQ25790_CHRG_V_LIM_MSB, vlim_msb);
+ if (ret)
+ return ret;
+
+ vlim_lsb = vlim & 0xff;
+
+ return regmap_write(bq->regmap, BQ25790_CHRG_V_LIM_LSB, vlim_lsb);
+}
+
+static int bq25790_get_input_volt_lim(struct bq25790_device *bq)
+{
+ int ret;
+ int vlim;
+
+ ret = regmap_read(bq->regmap, BQ25790_INPUT_V_LIM, &vlim);
+ if (ret)
+ return ret;
+
+ return vlim * BQ25790_VINDPM_STEP_uV;
+}
+
+static int bq25790_set_input_curr_lim(struct bq25790_device *bq, int iindpm)
+{
+ int ret;
+ int ilim, ilim_lsb, ilim_msb;
+
+ if (iindpm < BQ25790_IINDPM_I_MIN_uA ||
+ iindpm > BQ25790_IINDPM_I_MAX_uA)
+ return -EINVAL;
+
+ ilim = iindpm / BQ25790_IINDPM_STEP_uA;
+ ilim_msb = (ilim >> 8) & 0xff;
+
+ ret = regmap_write(bq->regmap, BQ25790_INPUT_I_LIM_MSB, ilim_msb);
+ if (ret)
+ return ret;
+
+ ilim_lsb = ilim & 0xff;
+
+ return regmap_write(bq->regmap, BQ25790_INPUT_I_LIM_LSB, ilim_lsb);
+}
+
+static int bq25790_get_input_curr_lim(struct bq25790_device *bq)
+{
+ int ret;
+ int ilim_msb, ilim_lsb;
+ u16 ilim;
+
+ ret = regmap_read(bq->regmap, BQ25790_INPUT_I_LIM_MSB, &ilim_msb);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_INPUT_I_LIM_LSB, &ilim_lsb);
+ if (ret)
+ return ret;
+
+ ilim = (ilim_msb << 8) | ilim_lsb;
+
+ return ilim * BQ25790_IINDPM_STEP_uA;
+}
+
+static int bq25790_get_state(struct bq25790_device *bq,
+ struct bq25790_state *state)
+{
+ int chrg_stat_0, chrg_stat_1, chrg_stat_3, chrg_stat_4;
+ int chrg_ctrl_0, fault_0, fault_1;
+ int ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_STAT_0, &chrg_stat_0);
+ if (ret)
+ return ret;
+
+ state->vbus_status = chrg_stat_0 & BQ25790_VBUS_PRESENT;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_STAT_1, &chrg_stat_1);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_CTRL_0, &chrg_ctrl_0);
+ if (ret)
+ return ret;
+
+ if (chrg_ctrl_0 & BQ25790_CHRG_EN)
+ state->chrg_status = chrg_stat_1 & BQ25790_CHG_STAT_MSK;
+ else
+ state->chrg_status = BQ25790_NOT_CHRGING;
+
+ state->chrg_type = chrg_stat_1 & BQ25790_VBUS_STAT_MSK;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_STAT_4, &chrg_stat_4);
+ if (ret)
+ return ret;
+
+ state->health = chrg_stat_4 & BQ25790_TEMP_MASK;
+
+ ret = regmap_read(bq->regmap, BQ25790_FAULT_STAT_0, &fault_0);
+ if (ret)
+ return ret;
+
+ state->fault_0 = fault_0;
+
+ ret = regmap_read(bq->regmap, BQ25790_FAULT_STAT_1, &fault_1);
+ if (ret)
+ return ret;
+
+ state->fault_1 = fault_1;
+
+ ret = regmap_read(bq->regmap, BQ25790_CHRG_STAT_3, &chrg_stat_3);
+ if (ret)
+ return ret;
+
+ state->online = chrg_stat_3 & BQ25790_VSYS_STAT;
+
+ state->vbat_adc = bq25790_get_vbat_adc(bq);
+
+ state->vbus_adc = bq25790_get_vbus_adc(bq);
+
+ state->ibat_adc = bq25790_get_ibat_adc(bq);
+
+ return 0;
+}
+
+static int bq25790_set_property(struct power_supply *psy,
+ enum power_supply_property prop,
+ const union power_supply_propval *val)
+{
+ struct bq25790_device *bq = power_supply_get_drvdata(psy);
+ int ret = -EINVAL;
+
+ switch (prop) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ ret = bq25790_set_input_curr_lim(bq, val->intval);
+ break;
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ ret = bq25790_set_chrg_volt(bq, val->intval);
+ break;
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ ret = bq25790_set_ichrg_curr(bq, val->intval);
+ break;
+ case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
+ ret = bq25790_set_prechrg_curr(bq, val->intval);
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
+ ret = bq25790_set_term_curr(bq, val->intval);
+ break;
+ case POWER_SUPPLY_PROP_STATUS:
+ break;
+ case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
+ ret = bq25790_set_input_volt_lim(bq, val->intval);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int bq25790_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct bq25790_device *bq = power_supply_get_drvdata(psy);
+ struct bq25790_state state;
+ int ret = 0;
+
+ mutex_lock(&bq->lock);
+ ret = bq25790_get_state(bq, &state);
+ mutex_unlock(&bq->lock);
+ if (ret)
+ return ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ if (!state.chrg_type || (state.chrg_type == BQ25790_OTG_MODE))
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ else if (!state.chrg_status)
+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ else if (state.chrg_status == BQ25790_TERM_CHRG)
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ else
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_TYPE:
+ switch (state.chrg_status) {
+ case BQ25790_TRICKLE_CHRG:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+ break;
+ case BQ25790_PRECHRG:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+ break;
+ case BQ25790_FAST_CHRG:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
+ break;
+ case BQ25790_TAPER_CHRG:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_STANDARD;
+ break;
+ case BQ25790_TOP_OFF_CHRG:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+ break;
+ case BQ25790_NOT_CHRGING:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+ }
+ break;
+ case POWER_SUPPLY_PROP_MANUFACTURER:
+ val->strval = BQ25790_MANUFACTURER;
+ break;
+
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = BQ25790_NAME;
+ break;
+
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = state.online;
+ break;
+ case POWER_SUPPLY_PROP_USB_TYPE:
+ if (!state.chrg_type) {
+ val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN;
+ break;
+ }
+ switch (state.chrg_type) {
+ case BQ25790_USB_SDP:
+ val->intval = POWER_SUPPLY_USB_TYPE_SDP;
+ break;
+ case BQ25790_USB_CDP:
+ val->intval = POWER_SUPPLY_USB_TYPE_CDP;
+ break;
+ case BQ25790_USB_DCP:
+ val->intval = POWER_SUPPLY_USB_TYPE_DCP;
+ break;
+ case BQ25790_OTG_MODE:
+ val->intval = POWER_SUPPLY_USB_TYPE_PD_DRP;
+ break;
+
+ default:
+ val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN;
+ break;
+ }
+ break;
+
+ case POWER_SUPPLY_PROP_HEALTH:
+ if (state.fault_1 && (BQ25790_OTG_OVP | BQ25790_VSYS_OVP))
+ val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+ else
+ val->intval = POWER_SUPPLY_HEALTH_GOOD;
+
+ switch (state.health) {
+ case BQ25790_TEMP_HOT:
+ val->intval = POWER_SUPPLY_HEALTH_HOT;
+ break;
+ case BQ25790_TEMP_WARM:
+ val->intval = POWER_SUPPLY_HEALTH_WARM;
+ break;
+ case BQ25790_TEMP_COOL:
+ val->intval = POWER_SUPPLY_HEALTH_COOL;
+ break;
+ case BQ25790_TEMP_COLD:
+ val->intval = POWER_SUPPLY_HEALTH_COLD;
+ break;
+ }
+ break;
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ ret = bq25790_get_ichg_curr(bq);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ ret = bq25790_get_chrg_volt(bq);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret;
+ break;
+
+ case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
+ ret = bq25790_get_prechrg_curr(bq);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
+ ret = bq25790_get_term_curr(bq);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = state.vbus_adc;
+ break;
+ case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
+ ret = bq25790_get_input_volt_lim(bq);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret;
+ break;
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ ret = bq25790_get_input_curr_lim(bq);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int bq25790_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct bq25790_device *bq = power_supply_get_drvdata(psy);
+ struct bq25790_state state;
+ int ret = 0;
+
+ mutex_lock(&bq->lock);
+ ret = bq25790_get_state(bq, &state);
+ mutex_unlock(&bq->lock);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(bq->regmap, BQ25790_ADC_CTRL,
+ BQ25790_ADC_EN, BQ25790_ADC_EN);
+ if (ret)
+ return ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
+ val->intval = bq->init_data.ichg_max;
+ break;
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
+ val->intval = bq->init_data.vreg_max;
+ break;
+
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = state.vbat_adc;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ val->intval = state.ibat_adc;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static bool bq25790_state_changed(struct bq25790_device *bq,
+ struct bq25790_state *new_state)
+{
+ struct bq25790_state old_state;
+
+ mutex_lock(&bq->lock);
+ old_state = bq->state;
+ mutex_unlock(&bq->lock);
+
+ return (old_state.chrg_status != new_state->chrg_status ||
+ old_state.chrg_fault != new_state->chrg_fault ||
+ old_state.online != new_state->online ||
+ old_state.health != new_state->health ||
+ old_state.fault_0 != new_state->fault_0 ||
+ old_state.fault_1 != new_state->fault_1 ||
+ old_state.chrg_type != new_state->chrg_type ||
+ old_state.vsys_status != new_state->vsys_status ||
+ old_state.vbat_adc != new_state->vbat_adc ||
+ old_state.vbus_adc != new_state->vbus_adc ||
+ old_state.ibat_adc != new_state->ibat_adc);
+}
+
+static irqreturn_t bq25790_irq_handler_thread(int irq, void *private)
+{
+ struct bq25790_device *bq = private;
+ struct bq25790_state state;
+ int ret;
+
+ ret = bq25790_get_state(bq, &state);
+ if (ret < 0)
+ goto irq_out;
+
+ if (!bq25790_state_changed(bq, &state))
+ goto irq_out;
+
+ mutex_lock(&bq->lock);
+ bq->state = state;
+ mutex_unlock(&bq->lock);
+
+ power_supply_changed(bq->charger);
+
+irq_out:
+ return IRQ_HANDLED;
+}
+
+static enum power_supply_property bq25790_power_supply_props[] = {
+ POWER_SUPPLY_PROP_MANUFACTURER,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
+ POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
+ POWER_SUPPLY_PROP_CHARGE_TYPE,
+ POWER_SUPPLY_PROP_USB_TYPE,
+};
+
+static enum power_supply_property bq25790_battery_props[] = {
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+};
+
+static char *bq25790_charger_supplied_to[] = {
+ "main-battery",
+};
+
+static int bq25790_property_is_writeable(struct power_supply *psy,
+ enum power_supply_property prop)
+{
+ switch (prop) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
+ case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
+ case POWER_SUPPLY_PROP_STATUS:
+ case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct power_supply_desc bq25790_power_supply_desc = {
+ .name = "bq25790-charger",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .usb_types = bq25790_usb_type,
+ .num_usb_types = ARRAY_SIZE(bq25790_usb_type),
+ .properties = bq25790_power_supply_props,
+ .num_properties = ARRAY_SIZE(bq25790_power_supply_props),
+ .get_property = bq25790_get_property,
+ .set_property = bq25790_set_property,
+ .property_is_writeable = bq25790_property_is_writeable,
+};
+
+static const struct power_supply_desc bq25790_battery_desc = {
+ .name = "bq25790-battery",
+ .type = POWER_SUPPLY_TYPE_BATTERY,
+ .get_property = bq25790_battery_get_property,
+ .properties = bq25790_battery_props,
+ .num_properties = ARRAY_SIZE(bq25790_battery_props),
+};
+
+static bool bq25790_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BQ25790_ICO_I_LIM...BQ25790_FAULT_FLAG_1:
+ case BQ25790_ADC_IBUS...BQ25790_ADC_DM:
+ case BQ25790_CHRG_CTRL_0:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config bq25790_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = BQ25790_PART_INFO,
+ .reg_defaults = bq25790_reg_defs,
+ .num_reg_defaults = ARRAY_SIZE(bq25790_reg_defs),
+ .cache_type = REGCACHE_RBTREE,
+ .volatile_reg = bq25790_is_volatile_reg,
+};
+
+static int bq25790_power_supply_init(struct bq25790_device *bq,
+ struct device *dev)
+{
+ struct power_supply_config psy_cfg = { .drv_data = bq,
+ .of_node = dev->of_node, };
+
+ psy_cfg.supplied_to = bq25790_charger_supplied_to;
+ psy_cfg.num_supplicants = ARRAY_SIZE(bq25790_charger_supplied_to);
+
+ bq->charger = devm_power_supply_register(bq->dev,
+ &bq25790_power_supply_desc,
+ &psy_cfg);
+ if (IS_ERR(bq->charger))
+ return -EINVAL;
+
+ bq->battery = devm_power_supply_register(bq->dev,
+ &bq25790_battery_desc,
+ &psy_cfg);
+ if (IS_ERR(bq->battery))
+ return -EINVAL;
+ return 0;
+}
+
+static int bq25790_hw_init(struct bq25790_device *bq)
+{
+ struct power_supply_battery_info bat_info = { };
+ int wd_reg_val;
+ int ret = 0;
+ int i;
+
+ if (bq->watchdog_timer) {
+ for (i = 0; i < BQ25790_NUM_WD_VAL; i++) {
+ if (bq->watchdog_timer > bq25790_watchdog_time[i] &&
+ bq->watchdog_timer < bq25790_watchdog_time[i + 1]) {
+ wd_reg_val = i;
+ break;
+ }
+ }
+ } else
+ wd_reg_val = BQ25790_WATCHDOG_DIS;
+
+ ret = regmap_update_bits(bq->regmap, BQ25790_CHRG_CTRL_1,
+ BQ25790_WATCHDOG_MASK, wd_reg_val);
+
+ ret = power_supply_get_battery_info(bq->charger, &bat_info);
+ if (ret) {
+ dev_warn(bq->dev, "battery info missing, default values will be applied\n");
+
+ bat_info.constant_charge_current_max_ua =
+ BQ25790_ICHRG_I_DEF_uA;
+
+ bat_info.constant_charge_voltage_max_uv =
+ BQ25790_VREG_V_DEF_uV;
+
+ bat_info.precharge_current_ua = BQ25790_PRECHRG_I_DEF_uA;
+ bat_info.charge_term_current_ua = BQ25790_TERMCHRG_I_DEF_uA;
+ bq->init_data.ichg_max = BQ25790_ICHRG_I_MAX_uA;
+ bq->init_data.vreg_max = BQ25790_VREG_V_MAX_uV;
+ } else {
+ bq->init_data.ichg_max =
+ bat_info.constant_charge_current_max_ua;
+
+ bq->init_data.vreg_max =
+ bat_info.constant_charge_voltage_max_uv;
+ }
+
+ ret = bq25790_set_ichrg_curr(bq,
+ bat_info.constant_charge_current_max_ua);
+ if (ret)
+ goto err_out;
+
+ ret = bq25790_set_prechrg_curr(bq, bat_info.precharge_current_ua);
+ if (ret)
+ goto err_out;
+
+ ret = bq25790_set_chrg_volt(bq,
+ bat_info.constant_charge_voltage_max_uv);
+ if (ret)
+ goto err_out;
+
+ ret = bq25790_set_term_curr(bq, bat_info.charge_term_current_ua);
+ if (ret)
+ goto err_out;
+
+ ret = bq25790_set_input_volt_lim(bq, bq->init_data.vlim);
+ if (ret)
+ goto err_out;
+
+ ret = bq25790_set_input_curr_lim(bq, bq->init_data.ilim);
+ if (ret)
+ goto err_out;
+
+err_out:
+ return ret;
+}
+
+static int bq25790_parse_dt(struct bq25790_device *bq)
+{
+ int ret;
+
+ ret = device_property_read_u32(bq->dev, "ti,watchdog-timer",
+ &bq->watchdog_timer);
+ if (ret)
+ bq->watchdog_timer = BQ25790_WATCHDOG_DIS;
+
+ if (bq->watchdog_timer > BQ25790_WATCHDOG_MAX ||
+ bq->watchdog_timer < BQ25790_WATCHDOG_DIS)
+ return -EINVAL;
+
+ ret = device_property_read_u32(bq->dev,
+ "input-voltage-limit-microvolt",
+ &bq->init_data.vlim);
+ if (ret)
+ bq->init_data.vlim = BQ25790_VINDPM_DEF_uV;
+
+ if (bq->init_data.vlim > BQ25790_VINDPM_V_MAX_uV ||
+ bq->init_data.vlim < BQ25790_VINDPM_V_MIN_uV)
+ return -EINVAL;
+
+ ret = device_property_read_u32(bq->dev,
+ "input-current-limit-microamp",
+ &bq->init_data.ilim);
+ if (ret)
+ bq->init_data.ilim = BQ25790_IINDPM_DEF_uA;
+
+ if (bq->init_data.ilim > BQ25790_IINDPM_I_MAX_uA ||
+ bq->init_data.ilim < BQ25790_IINDPM_I_MIN_uA)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int bq25790_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct bq25790_device *bq;
+ int ret;
+
+ bq = devm_kzalloc(dev, sizeof(*bq), GFP_KERNEL);
+ if (!bq)
+ return -ENOMEM;
+
+ bq->client = client;
+ bq->dev = dev;
+
+ mutex_init(&bq->lock);
+
+ strncpy(bq->model_name, id->name, I2C_NAME_SIZE);
+
+ bq->regmap = devm_regmap_init_i2c(client, &bq25790_regmap_config);
+ if (IS_ERR(bq->regmap)) {
+ dev_err(dev, "Failed to allocate register map\n");
+ return PTR_ERR(bq->regmap);
+ }
+
+ i2c_set_clientdata(client, bq);
+
+ ret = bq25790_parse_dt(bq);
+ if (ret) {
+ dev_err(dev, "Failed to read device tree properties%d\n", ret);
+ return ret;
+ }
+
+ /* OTG reporting */
+ bq->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ if (!IS_ERR_OR_NULL(bq->usb2_phy)) {
+ INIT_WORK(&bq->usb_work, bq25790_usb_work);
+ bq->usb_nb.notifier_call = bq25790_usb_notifier;
+ usb_register_notifier(bq->usb2_phy, &bq->usb_nb);
+ }
+
+ bq->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
+ if (!IS_ERR_OR_NULL(bq->usb3_phy)) {
+ INIT_WORK(&bq->usb_work, bq25790_usb_work);
+ bq->usb_nb.notifier_call = bq25790_usb_notifier;
+ usb_register_notifier(bq->usb3_phy, &bq->usb_nb);
+ }
+
+ if (client->irq) {
+ ret = devm_request_threaded_irq(dev, client->irq, NULL,
+ bq25790_irq_handler_thread,
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ dev_name(&client->dev), bq);
+ if (ret)
+ goto error_out;
+ }
+
+ ret = bq25790_power_supply_init(bq, dev);
+ if (ret) {
+ dev_err(dev, "Failed to register power supply\n");
+ goto error_out;
+ }
+
+ ret = bq25790_hw_init(bq);
+ if (ret) {
+ dev_err(dev, "Cannot initialize the chip.\n");
+ goto error_out;
+ }
+
+ return ret;
+error_out:
+ if (!IS_ERR_OR_NULL(bq->usb2_phy))
+ usb_unregister_notifier(bq->usb2_phy, &bq->usb_nb);
+
+ if (!IS_ERR_OR_NULL(bq->usb3_phy))
+ usb_unregister_notifier(bq->usb3_phy, &bq->usb_nb);
+ return ret;
+}
+
+static const struct i2c_device_id bq25790_i2c_ids[] = {
+ { BQ25790_NAME, 0 },
+ { BQ25792_NAME, 1 },
+ {},
+};
+MODULE_DEVICE_TABLE(i2c, bq25790_i2c_ids);
+
+static const struct of_device_id bq25790_of_match[] = {
+ { .compatible = "ti,bq25790", },
+ { .compatible = "ti,bq25792", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, bq25790_of_match);
+
+static const struct acpi_device_id bq25790_acpi_match[] = {
+ {BQ25790_NAME, 0},
+ {BQ25792_NAME, 0},
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, bq25790_acpi_match);
+
+static struct i2c_driver bq25790_driver = {
+ .driver = {
+ .name = "bq25790-charger",
+ .of_match_table = bq25790_of_match,
+ .acpi_match_table = ACPI_PTR(bq25790_acpi_match),
+ },
+ .probe = bq25790_probe,
+ .id_table = bq25790_i2c_ids,
+};
+module_i2c_driver(bq25790_driver);
+
+MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
+MODULE_AUTHOR("Ricardo Rivera-Matos <r-rivera-matos@ti.com>");
+MODULE_DESCRIPTION("bq25790 charger driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/power/supply/bq25790_charger.h b/drivers/power/supply/bq25790_charger.h
new file mode 100644
index 000000000000..77234e116a6b
--- /dev/null
+++ b/drivers/power/supply/bq25790_charger.h
@@ -0,0 +1,150 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+// BQ25790 Charger Driver
+// Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+
+#ifndef _BQ25790_CHARGER_H
+#define _BQ25790_CHARGER_H
+
+#define BQ25790_MANUFACTURER "Texas Instruments"
+#define BQ25790_NAME "bq25790"
+#define BQ25792_NAME "bq25792"
+
+#define BQ25790_MIN_SYS_V 0x00
+#define BQ25790_CHRG_V_LIM_MSB 0x01
+#define BQ25790_CHRG_V_LIM_LSB 0x02
+#define BQ25790_CHRG_I_LIM_MSB 0x03
+#define BQ25790_CHRG_I_LIM_LSB 0x04
+#define BQ25790_INPUT_V_LIM 0x05
+#define BQ25790_INPUT_I_LIM_MSB 0x06
+#define BQ25790_INPUT_I_LIM_LSB 0x07
+#define BQ25790_PRECHRG_CTRL 0x08
+#define BQ25790_TERM_CTRL 0x09
+#define BQ25790_RECHRG_CTRL 0x0a
+#define BQ25790_VOTG_REG 0x0b
+#define BQ25790_IOTG_REG 0x0d
+#define BQ25790_TIMER_CTRL 0x0e
+#define BQ25790_CHRG_CTRL_0 0x0f
+#define BQ25790_CHRG_CTRL_1 0x10
+#define BQ25790_CHRG_CTRL_2 0x11
+#define BQ25790_CHRG_CTRL_3 0x12
+#define BQ25790_CHRG_CTRL_4 0x13
+#define BQ25790_CHRG_CTRL_5 0x14
+#define BQ25790_MPPT_CTRL 0x15
+#define BQ25790_TEMP_CTRL 0x16
+#define BQ25790_NTC_CTRL_0 0x17
+#define BQ25790_NTC_CTRL_1 0x18
+#define BQ25790_ICO_I_LIM 0x19
+#define BQ25790_CHRG_STAT_0 0x1b
+#define BQ25790_CHRG_STAT_1 0x1c
+#define BQ25790_CHRG_STAT_2 0x1d
+#define BQ25790_CHRG_STAT_3 0x1e
+#define BQ25790_CHRG_STAT_4 0x1f
+#define BQ25790_FAULT_STAT_0 0x20
+#define BQ25790_FAULT_STAT_1 0x21
+#define BQ25790_CHRG_FLAG_0 0x22
+#define BQ25790_CHRG_FLAG_1 0x23
+#define BQ25790_CHRG_FLAG_2 0x24
+#define BQ25790_CHRG_FLAG_3 0x25
+#define BQ25790_FAULT_FLAG_0 0x26
+#define BQ25790_FAULT_FLAG_1 0x27
+#define BQ25790_CHRG_MSK_0 0x28
+#define BQ25790_CHRG_MSK_1 0x29
+#define BQ25790_CHRG_MSK_2 0x2a
+#define BQ25790_CHRG_MSK_3 0x2b
+#define BQ25790_FAULT_MSK_0 0x2c
+#define BQ25790_FAULT_MSK_1 0x2d
+#define BQ25790_ADC_CTRL 0x2e
+#define BQ25790_FN_DISABE_0 0x2f
+#define BQ25790_FN_DISABE_1 0x30
+#define BQ25790_ADC_IBUS 0x31
+#define BQ25790_ADC_IBAT_MSB 0x33
+#define BQ25790_ADC_IBAT_LSB 0x34
+#define BQ25790_ADC_VBUS_MSB 0x35
+#define BQ25790_ADC_VBUS_LSB 0x36
+#define BQ25790_ADC_VAC1 0x37
+#define BQ25790_ADC_VAC2 0x39
+#define BQ25790_ADC_VBAT_MSB 0x3b
+#define BQ25790_ADC_VBAT_LSB 0x3c
+#define BQ25790_ADC_VSYS_MSB 0x3d
+#define BQ25790_ADC_VSYS_LSB 0x3e
+#define BQ25790_ADC_TS 0x3f
+#define BQ25790_ADC_TDIE 0x41
+#define BQ25790_ADC_DP 0x43
+#define BQ25790_ADC_DM 0x45
+#define BQ25790_DPDM_DRV 0x47
+#define BQ25790_PART_INFO 0x48
+
+#define BQ25790_CHRG_EN BIT(5)
+#define BQ25790_ADC_EN BIT(7)
+
+/* Charger Status 1 */
+#define BQ25790_CHG_STAT_MSK GENMASK(7, 5)
+#define BQ25790_NOT_CHRGING 0
+#define BQ25790_TRICKLE_CHRG BIT(5)
+#define BQ25790_PRECHRG BIT(6)
+#define BQ25790_FAST_CHRG (BIT(5) | BIT(6))
+#define BQ25790_TAPER_CHRG BIT(7)
+#define BQ25790_TOP_OFF_CHRG (BIT(6) | BIT(7))
+#define BQ25790_TERM_CHRG (BIT(5) | BIT(6) | BIT(7))
+#define BQ25790_VBUS_PRESENT BIT(0)
+
+#define BQ25790_VBUS_STAT_MSK GENMASK(4, 1)
+#define BQ25790_USB_SDP BIT(1)
+#define BQ25790_USB_CDP BIT(2)
+#define BQ25790_USB_DCP (BIT(1) | BIT(2))
+#define BQ25790_HVDCP BIT(3)
+#define BQ25790_UNKNOWN_3A (BIT(3) | BIT(1))
+#define BQ25790_NON_STANDARD (BIT(3) | BIT(2))
+#define BQ25790_OTG_MODE (BIT(3) | BIT(2) | BIT(1))
+#define BQ25790_UNQUAL_ADAPT BIT(4)
+#define BQ25790_DIRECT_PWR (BIT(4) | BIT(2) | BIT(1))
+
+/* Charger Status 4 */
+#define BQ25790_TEMP_HOT BIT(0)
+#define BQ25790_TEMP_WARM BIT(1)
+#define BQ25790_TEMP_COOL BIT(2)
+#define BQ25790_TEMP_COLD BIT(3)
+#define BQ25790_TEMP_MASK GENMASK(3, 0)
+
+#define BQ25790_OTG_OVP BIT(5)
+#define BQ25790_VSYS_OVP BIT(6)
+#define BQ25790_VSYS_STAT BIT(4)
+
+#define BQ25790_PRECHRG_CUR_MASK GENMASK(5, 0)
+#define BQ25790_PRECHRG_CURRENT_STEP_uA 40000
+#define BQ25790_PRECHRG_I_MIN_uA 40000
+#define BQ25790_PRECHRG_I_MAX_uA 2000000
+#define BQ25790_PRECHRG_I_DEF_uA 120000
+#define BQ25790_TERMCHRG_CUR_MASK GENMASK(4, 0)
+#define BQ25790_TERMCHRG_CURRENT_STEP_uA 40000
+#define BQ25790_TERMCHRG_I_MIN_uA 40000
+#define BQ25790_TERMCHRG_I_MAX_uA 1000000
+#define BQ25790_TERMCHRG_I_DEF_uA 200000
+#define BQ25790_ICHRG_CURRENT_STEP_uA 10000
+#define BQ25790_ICHRG_I_MIN_uA 50000
+#define BQ25790_ICHRG_I_MAX_uA 5000000
+#define BQ25790_ICHRG_I_DEF_uA 1000000
+
+#define BQ25790_VREG_V_MAX_uV 18800000
+#define BQ25790_VREG_V_MIN_uV 3000000
+#define BQ25790_VREG_V_DEF_uV 3600000
+#define BQ25790_VREG_V_STEP_uV 10000
+
+#define BQ25790_IINDPM_I_MIN_uA 100000
+#define BQ25790_IINDPM_I_MAX_uA 3300000
+#define BQ25790_IINDPM_STEP_uA 10000
+#define BQ25790_IINDPM_DEF_uA 1000000
+
+#define BQ25790_VINDPM_V_MIN_uV 3600000
+#define BQ25790_VINDPM_V_MAX_uV 22000000
+#define BQ25790_VINDPM_STEP_uV 100000
+#define BQ25790_VINDPM_DEF_uV 3600000
+
+#define BQ25790_ADC_VOLT_STEP_uV 1000
+#define BQ25790_ADC_CURR_STEP_uA 1000
+
+#define BQ25790_WATCHDOG_MASK GENMASK(2, 0)
+#define BQ25790_WATCHDOG_DIS 0
+#define BQ25790_WATCHDOG_MAX 160000
+
+#endif /* _BQ25790_CHARGER_H */
--
2.28.0