Sebastian,

On 12/27/20 12:46 PM, Sebastian Reichel wrote:
Hi,

Sorry, took me a lot longer than expected...

On Fri, Oct 09, 2020 at 09:41:12AM -0500, Dan Murphy wrote:
BQ25790 is a highly integrated switch-mode buck-boost charger
for 1-4 cell Li-ion battery and Li-polymer battery.

Signed-off-by: Ricardo Rivera-Matos <r-rivera-ma...@ti.com>
Signed-off-by: Dan Murphy <dmur...@ti.com>
---
  drivers/power/supply/Kconfig           |    8 +
  drivers/power/supply/Makefile          |    1 +
  drivers/power/supply/bq25790_charger.c | 1121 ++++++++++++++++++++++++
  drivers/power/supply/bq25790_charger.h |  150 ++++
  4 files changed, 1280 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 eec646c568b7..1cc361238d9a 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -628,6 +628,14 @@ 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 dd4b86318cd9..29b71cc92550 100644
--- a/drivers/power/supply/Makefile
+++ b/drivers/power/supply/Makefile
@@ -83,6 +83,7 @@ obj-$(CONFIG_CHARGER_BQ24190) += bq24190_charger.o
  obj-$(CONFIG_CHARGER_BQ24257) += bq24257_charger.o
  obj-$(CONFIG_CHARGER_BQ24735) += bq24735-charger.o
  obj-$(CONFIG_CHARGER_BQ2515X) += bq2515x_charger.o
+obj-$(CONFIG_CHARGER_BQ25790)  += bq25790_charger.o
  obj-$(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/bq25790_charger.c 
b/drivers/power/supply/bq25790_charger.c
new file mode 100644
index 000000000000..838a49c2f9f0
--- /dev/null
+++ b/drivers/power/supply/bq25790_charger.c
@@ -0,0 +1,1121 @@
+// 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;
+}
+
+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;
what's the point of exposing PROP_STATUS and always returning
EINVAL?
ACK It is no longer necessary.

+       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);
useless lock, since state is a function local variable.
ACK

+       if (ret)
+               return ret;
+
+       switch (psp) {
please be consistent with newlines after break :)
ACK

+       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;
I think it's better to report bq->model_name (and otherwise that
field is unused :))
ACK

+               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);
another useless lock, since state is also a function local variable
in this place.
ACK

+       if (ret)
+               return ret;
+
+       ret = regmap_update_bits(bq->regmap, BQ25790_ADC_CTRL,
+                                BQ25790_ADC_EN, BQ25790_ADC_EN);
+       if (ret)
+               return ret;
why is ADC enabled here?
This will occur in the bq25790_get_state() instead

+
+       switch (psp) {
please also be consistent with newline after break in this
switch statement.
ACK

+       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",
+};
why do you need this? Usually this information should come from
platform data (e.g. DT).
ACK

+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,
There are no holes in the register map, so REGCACHE_FLAT
should be enough.
ACK

+       .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 = BQ25790_WATCHDOG_DIS;
+       int wd_max_val = BQ25790_NUM_WD_VAL - 1;
+       int ret = 0;
+       int i;
+
+       if (bq->watchdog_timer) {
+               if (bq->watchdog_timer >= bq25790_watchdog_time[wd_max_val])
+                       wd_reg_val = wd_max_val;
+               else {
+                       for (i = 0; i < wd_max_val; i++) {
+                               if (bq->watchdog_timer > bq25790_watchdog_time[i] 
&&
+                                   bq->watchdog_timer < 
bq25790_watchdog_time[i + 1]) {
+                                       wd_reg_val = i;
+                                       break;
+                               }
+                       }
+               }
+       }
+
+       ret = regmap_update_bits(bq->regmap, BQ25790_CHRG_CTRL_1,
+                                BQ25790_WATCHDOG_MASK, wd_reg_val);
+       if (ret)
+               return ret;
+
+       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;
You need to call power_supply_put_battery_info(), since the
struct contains some pointers with allocated data.
ACK

+}
+
+static int bq25790_parse_dt(struct bq25790_device *bq)
+{
+       int ret;
+
+       ret = device_property_read_u32(bq->dev, "ti,watchdog-timeout-ms",
+                                      &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);
You also need to unregister the usb notifiers on driver removal.
I suggest to use devm_add_action_or_reset():

static void bq25790_unregister_usb_notifier(void *data)
{
     struct bq25790_device *bq = (struct bq25790_device *) data;

     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);
}

ret = devm_add_action_or_reset(dev, bq25790_unregister_usb_notifier, bq)
if (ret)
     return ret;
ACK

-- Sebastian

+       }
+
+       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 <dmur...@ti.com>");
+MODULE_AUTHOR("Ricardo Rivera-Matos <r-rivera-ma...@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 */
--
2.28.0.585.ge1cfff676549

Ricardo

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