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Message-ID: <20201004224714.5djobhqpqrq6tnth@earth.universe>
Date: Mon, 5 Oct 2020 00:47:14 +0200
From: Sebastian Reichel <sre@...nel.org>
To: Dan Murphy <dmurphy@...com>
Cc: robh@...nel.org, devicetree@...r.kernel.org, r-rivera-matos@...com,
linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] power: bq25980: Add support for the BQ259xx family
Hi,
On Mon, Aug 31, 2020 at 11:48:49AM -0500, Dan Murphy wrote:
> Add support for the BQ25980, BQ25975 and BQ25960 family of flash
> chargers.
>
> Signed-off-by: Dan Murphy <dmurphy@...com>
> ---
Thanks, queued (together with the binding)
-- Sebastian
> drivers/power/supply/Kconfig | 9 +
> drivers/power/supply/Makefile | 1 +
> drivers/power/supply/bq25980_charger.c | 1316 ++++++++++++++++++++++++
> drivers/power/supply/bq25980_charger.h | 178 ++++
> 4 files changed, 1504 insertions(+)
> create mode 100644 drivers/power/supply/bq25980_charger.c
> create mode 100644 drivers/power/supply/bq25980_charger.h
>
> diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
> index faf2830aa152..fbe974e4cff4 100644
> --- a/drivers/power/supply/Kconfig
> +++ b/drivers/power/supply/Kconfig
> @@ -631,6 +631,15 @@ config CHARGER_BQ25890
> help
> Say Y to enable support for the TI BQ25890 battery charger.
>
> +config CHARGER_BQ25980
> + tristate "TI BQ25980 battery charger driver"
> + depends on I2C
> + depends on GPIOLIB || COMPILE_TEST
> + select REGMAP_I2C
> + help
> + Say Y to enable support for the TI BQ25980, BQ25975 and BQ25960
> + series of fast battery chargers.
> +
> config CHARGER_SMB347
> tristate "Summit Microelectronics SMB347 Battery Charger"
> depends on I2C
> diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
> index b3c694a65114..9b2f21fa6f94 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-$(CONFIG_CHARGER_BQ25980) += bq25980_charger.o
> obj-$(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/bq25980_charger.c b/drivers/power/supply/bq25980_charger.c
> new file mode 100644
> index 000000000000..3995fb7cf060
> --- /dev/null
> +++ b/drivers/power/supply/bq25980_charger.c
> @@ -0,0 +1,1316 @@
> +// SPDX-License-Identifier: GPL-2.0
> +// BQ25980 Battery Charger Driver
> +// Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
> +
> +#include <linux/err.h>
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/interrupt.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/power_supply.h>
> +#include <linux/regmap.h>
> +#include <linux/types.h>
> +#include <linux/delay.h>
> +#include <linux/device.h>
> +#include <linux/moduleparam.h>
> +#include <linux/slab.h>
> +
> +#include "bq25980_charger.h"
> +
> +struct bq25980_state {
> + bool dischg;
> + bool ovp;
> + bool ocp;
> + bool wdt;
> + bool tflt;
> + bool online;
> + bool ce;
> + bool hiz;
> + bool bypass;
> +
> + u32 vbat_adc;
> + u32 vsys_adc;
> + u32 ibat_adc;
> +};
> +
> +enum bq25980_id {
> + BQ25980,
> + BQ25975,
> + BQ25960,
> +};
> +
> +struct bq25980_chip_info {
> +
> + int model_id;
> +
> + const struct regmap_config *regmap_config;
> +
> + int busocp_def;
> + int busocp_sc_max;
> + int busocp_byp_max;
> + int busocp_sc_min;
> + int busocp_byp_min;
> +
> + int busovp_sc_def;
> + int busovp_byp_def;
> + int busovp_sc_step;
> +
> + int busovp_sc_offset;
> + int busovp_byp_step;
> + int busovp_byp_offset;
> + int busovp_sc_min;
> + int busovp_sc_max;
> + int busovp_byp_min;
> + int busovp_byp_max;
> +
> + int batovp_def;
> + int batovp_max;
> + int batovp_min;
> + int batovp_step;
> + int batovp_offset;
> +
> + int batocp_def;
> + int batocp_max;
> +};
> +
> +struct bq25980_init_data {
> + u32 ichg;
> + u32 bypass_ilim;
> + u32 sc_ilim;
> + u32 vreg;
> + u32 iterm;
> + u32 iprechg;
> + u32 bypass_vlim;
> + u32 sc_vlim;
> + u32 ichg_max;
> + u32 vreg_max;
> +};
> +
> +struct bq25980_device {
> + struct i2c_client *client;
> + struct device *dev;
> + struct power_supply *charger;
> + struct power_supply *battery;
> + struct mutex lock;
> + struct regmap *regmap;
> +
> + char model_name[I2C_NAME_SIZE];
> +
> + struct bq25980_init_data init_data;
> + const struct bq25980_chip_info *chip_info;
> + struct bq25980_state state;
> + int watchdog_timer;
> +};
> +
> +static struct reg_default bq25980_reg_defs[] = {
> + {BQ25980_BATOVP, 0x5A},
> + {BQ25980_BATOVP_ALM, 0x46},
> + {BQ25980_BATOCP, 0x51},
> + {BQ25980_BATOCP_ALM, 0x50},
> + {BQ25980_BATUCP_ALM, 0x28},
> + {BQ25980_CHRGR_CTRL_1, 0x0},
> + {BQ25980_BUSOVP, 0x26},
> + {BQ25980_BUSOVP_ALM, 0x22},
> + {BQ25980_BUSOCP, 0xD},
> + {BQ25980_BUSOCP_ALM, 0xC},
> + {BQ25980_TEMP_CONTROL, 0x30},
> + {BQ25980_TDIE_ALM, 0xC8},
> + {BQ25980_TSBUS_FLT, 0x15},
> + {BQ25980_TSBAT_FLG, 0x15},
> + {BQ25980_VAC_CONTROL, 0x0},
> + {BQ25980_CHRGR_CTRL_2, 0x0},
> + {BQ25980_CHRGR_CTRL_3, 0x20},
> + {BQ25980_CHRGR_CTRL_4, 0x1D},
> + {BQ25980_CHRGR_CTRL_5, 0x18},
> + {BQ25980_STAT1, 0x0},
> + {BQ25980_STAT2, 0x0},
> + {BQ25980_STAT3, 0x0},
> + {BQ25980_STAT4, 0x0},
> + {BQ25980_STAT5, 0x0},
> + {BQ25980_FLAG1, 0x0},
> + {BQ25980_FLAG2, 0x0},
> + {BQ25980_FLAG3, 0x0},
> + {BQ25980_FLAG4, 0x0},
> + {BQ25980_FLAG5, 0x0},
> + {BQ25980_MASK1, 0x0},
> + {BQ25980_MASK2, 0x0},
> + {BQ25980_MASK3, 0x0},
> + {BQ25980_MASK4, 0x0},
> + {BQ25980_MASK5, 0x0},
> + {BQ25980_DEVICE_INFO, 0x8},
> + {BQ25980_ADC_CONTROL1, 0x0},
> + {BQ25980_ADC_CONTROL2, 0x0},
> + {BQ25980_IBUS_ADC_LSB, 0x0},
> + {BQ25980_IBUS_ADC_MSB, 0x0},
> + {BQ25980_VBUS_ADC_LSB, 0x0},
> + {BQ25980_VBUS_ADC_MSB, 0x0},
> + {BQ25980_VAC1_ADC_LSB, 0x0},
> + {BQ25980_VAC2_ADC_LSB, 0x0},
> + {BQ25980_VOUT_ADC_LSB, 0x0},
> + {BQ25980_VBAT_ADC_LSB, 0x0},
> + {BQ25980_IBAT_ADC_MSB, 0x0},
> + {BQ25980_IBAT_ADC_LSB, 0x0},
> + {BQ25980_TSBUS_ADC_LSB, 0x0},
> + {BQ25980_TSBAT_ADC_LSB, 0x0},
> + {BQ25980_TDIE_ADC_LSB, 0x0},
> + {BQ25980_DEGLITCH_TIME, 0x0},
> + {BQ25980_CHRGR_CTRL_6, 0x0},
> +};
> +
> +static struct reg_default bq25975_reg_defs[] = {
> + {BQ25980_BATOVP, 0x5A},
> + {BQ25980_BATOVP_ALM, 0x46},
> + {BQ25980_BATOCP, 0x51},
> + {BQ25980_BATOCP_ALM, 0x50},
> + {BQ25980_BATUCP_ALM, 0x28},
> + {BQ25980_CHRGR_CTRL_1, 0x0},
> + {BQ25980_BUSOVP, 0x26},
> + {BQ25980_BUSOVP_ALM, 0x22},
> + {BQ25980_BUSOCP, 0xD},
> + {BQ25980_BUSOCP_ALM, 0xC},
> + {BQ25980_TEMP_CONTROL, 0x30},
> + {BQ25980_TDIE_ALM, 0xC8},
> + {BQ25980_TSBUS_FLT, 0x15},
> + {BQ25980_TSBAT_FLG, 0x15},
> + {BQ25980_VAC_CONTROL, 0x0},
> + {BQ25980_CHRGR_CTRL_2, 0x0},
> + {BQ25980_CHRGR_CTRL_3, 0x20},
> + {BQ25980_CHRGR_CTRL_4, 0x1D},
> + {BQ25980_CHRGR_CTRL_5, 0x18},
> + {BQ25980_STAT1, 0x0},
> + {BQ25980_STAT2, 0x0},
> + {BQ25980_STAT3, 0x0},
> + {BQ25980_STAT4, 0x0},
> + {BQ25980_STAT5, 0x0},
> + {BQ25980_FLAG1, 0x0},
> + {BQ25980_FLAG2, 0x0},
> + {BQ25980_FLAG3, 0x0},
> + {BQ25980_FLAG4, 0x0},
> + {BQ25980_FLAG5, 0x0},
> + {BQ25980_MASK1, 0x0},
> + {BQ25980_MASK2, 0x0},
> + {BQ25980_MASK3, 0x0},
> + {BQ25980_MASK4, 0x0},
> + {BQ25980_MASK5, 0x0},
> + {BQ25980_DEVICE_INFO, 0x8},
> + {BQ25980_ADC_CONTROL1, 0x0},
> + {BQ25980_ADC_CONTROL2, 0x0},
> + {BQ25980_IBUS_ADC_LSB, 0x0},
> + {BQ25980_IBUS_ADC_MSB, 0x0},
> + {BQ25980_VBUS_ADC_LSB, 0x0},
> + {BQ25980_VBUS_ADC_MSB, 0x0},
> + {BQ25980_VAC1_ADC_LSB, 0x0},
> + {BQ25980_VAC2_ADC_LSB, 0x0},
> + {BQ25980_VOUT_ADC_LSB, 0x0},
> + {BQ25980_VBAT_ADC_LSB, 0x0},
> + {BQ25980_IBAT_ADC_MSB, 0x0},
> + {BQ25980_IBAT_ADC_LSB, 0x0},
> + {BQ25980_TSBUS_ADC_LSB, 0x0},
> + {BQ25980_TSBAT_ADC_LSB, 0x0},
> + {BQ25980_TDIE_ADC_LSB, 0x0},
> + {BQ25980_DEGLITCH_TIME, 0x0},
> + {BQ25980_CHRGR_CTRL_6, 0x0},
> +};
> +
> +static struct reg_default bq25960_reg_defs[] = {
> + {BQ25980_BATOVP, 0x5A},
> + {BQ25980_BATOVP_ALM, 0x46},
> + {BQ25980_BATOCP, 0x51},
> + {BQ25980_BATOCP_ALM, 0x50},
> + {BQ25980_BATUCP_ALM, 0x28},
> + {BQ25980_CHRGR_CTRL_1, 0x0},
> + {BQ25980_BUSOVP, 0x26},
> + {BQ25980_BUSOVP_ALM, 0x22},
> + {BQ25980_BUSOCP, 0xD},
> + {BQ25980_BUSOCP_ALM, 0xC},
> + {BQ25980_TEMP_CONTROL, 0x30},
> + {BQ25980_TDIE_ALM, 0xC8},
> + {BQ25980_TSBUS_FLT, 0x15},
> + {BQ25980_TSBAT_FLG, 0x15},
> + {BQ25980_VAC_CONTROL, 0x0},
> + {BQ25980_CHRGR_CTRL_2, 0x0},
> + {BQ25980_CHRGR_CTRL_3, 0x20},
> + {BQ25980_CHRGR_CTRL_4, 0x1D},
> + {BQ25980_CHRGR_CTRL_5, 0x18},
> + {BQ25980_STAT1, 0x0},
> + {BQ25980_STAT2, 0x0},
> + {BQ25980_STAT3, 0x0},
> + {BQ25980_STAT4, 0x0},
> + {BQ25980_STAT5, 0x0},
> + {BQ25980_FLAG1, 0x0},
> + {BQ25980_FLAG2, 0x0},
> + {BQ25980_FLAG3, 0x0},
> + {BQ25980_FLAG4, 0x0},
> + {BQ25980_FLAG5, 0x0},
> + {BQ25980_MASK1, 0x0},
> + {BQ25980_MASK2, 0x0},
> + {BQ25980_MASK3, 0x0},
> + {BQ25980_MASK4, 0x0},
> + {BQ25980_MASK5, 0x0},
> + {BQ25980_DEVICE_INFO, 0x8},
> + {BQ25980_ADC_CONTROL1, 0x0},
> + {BQ25980_ADC_CONTROL2, 0x0},
> + {BQ25980_IBUS_ADC_LSB, 0x0},
> + {BQ25980_IBUS_ADC_MSB, 0x0},
> + {BQ25980_VBUS_ADC_LSB, 0x0},
> + {BQ25980_VBUS_ADC_MSB, 0x0},
> + {BQ25980_VAC1_ADC_LSB, 0x0},
> + {BQ25980_VAC2_ADC_LSB, 0x0},
> + {BQ25980_VOUT_ADC_LSB, 0x0},
> + {BQ25980_VBAT_ADC_LSB, 0x0},
> + {BQ25980_IBAT_ADC_MSB, 0x0},
> + {BQ25980_IBAT_ADC_LSB, 0x0},
> + {BQ25980_TSBUS_ADC_LSB, 0x0},
> + {BQ25980_TSBAT_ADC_LSB, 0x0},
> + {BQ25980_TDIE_ADC_LSB, 0x0},
> + {BQ25980_DEGLITCH_TIME, 0x0},
> + {BQ25980_CHRGR_CTRL_6, 0x0},
> +};
> +
> +static int bq25980_watchdog_time[BQ25980_NUM_WD_VAL] = {5000, 10000, 50000,
> + 300000};
> +
> +static int bq25980_get_input_curr_lim(struct bq25980_device *bq)
> +{
> + unsigned int busocp_reg_code;
> + int ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_BUSOCP, &busocp_reg_code);
> + if (ret)
> + return ret;
> +
> + return (busocp_reg_code * BQ25980_BUSOCP_STEP_uA) + BQ25980_BUSOCP_OFFSET_uA;
> +}
> +
> +static int bq25980_set_hiz(struct bq25980_device *bq, int setting)
> +{
> + return regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_2,
> + BQ25980_EN_HIZ, setting);
> +}
> +
> +static int bq25980_set_input_curr_lim(struct bq25980_device *bq, int busocp)
> +{
> + unsigned int busocp_reg_code;
> + int ret;
> +
> + if (!busocp)
> + return bq25980_set_hiz(bq, BQ25980_ENABLE_HIZ);
> +
> + bq25980_set_hiz(bq, BQ25980_DISABLE_HIZ);
> +
> + if (busocp < BQ25980_BUSOCP_MIN_uA)
> + busocp = BQ25980_BUSOCP_MIN_uA;
> +
> + if (bq->state.bypass)
> + busocp = min(busocp, bq->chip_info->busocp_sc_max);
> + else
> + busocp = min(busocp, bq->chip_info->busocp_byp_max);
> +
> + busocp_reg_code = (busocp - BQ25980_BUSOCP_OFFSET_uA)
> + / BQ25980_BUSOCP_STEP_uA;
> +
> + ret = regmap_write(bq->regmap, BQ25980_BUSOCP, busocp_reg_code);
> + if (ret)
> + return ret;
> +
> + return regmap_write(bq->regmap, BQ25980_BUSOCP_ALM, busocp_reg_code);
> +}
> +
> +static int bq25980_get_input_volt_lim(struct bq25980_device *bq)
> +{
> + unsigned int busovp_reg_code;
> + unsigned int busovp_offset;
> + unsigned int busovp_step;
> + int ret;
> +
> + if (bq->state.bypass) {
> + busovp_step = bq->chip_info->busovp_byp_step;
> + busovp_offset = bq->chip_info->busovp_byp_offset;
> + } else {
> + busovp_step = bq->chip_info->busovp_sc_step;
> + busovp_offset = bq->chip_info->busovp_sc_offset;
> + }
> +
> + ret = regmap_read(bq->regmap, BQ25980_BUSOVP, &busovp_reg_code);
> + if (ret)
> + return ret;
> +
> + return (busovp_reg_code * busovp_step) + busovp_offset;
> +}
> +
> +static int bq25980_set_input_volt_lim(struct bq25980_device *bq, int busovp)
> +{
> + unsigned int busovp_reg_code;
> + unsigned int busovp_step;
> + unsigned int busovp_offset;
> + int ret;
> +
> + if (bq->state.bypass) {
> + busovp_step = bq->chip_info->busovp_byp_step;
> + busovp_offset = bq->chip_info->busovp_byp_offset;
> + if (busovp > bq->chip_info->busovp_byp_max)
> + busovp = bq->chip_info->busovp_byp_max;
> + else if (busovp < bq->chip_info->busovp_byp_min)
> + busovp = bq->chip_info->busovp_byp_min;
> + } else {
> + busovp_step = bq->chip_info->busovp_sc_step;
> + busovp_offset = bq->chip_info->busovp_sc_offset;
> + if (busovp > bq->chip_info->busovp_sc_max)
> + busovp = bq->chip_info->busovp_sc_max;
> + else if (busovp < bq->chip_info->busovp_sc_min)
> + busovp = bq->chip_info->busovp_sc_min;
> + }
> +
> + busovp_reg_code = (busovp - busovp_offset) / busovp_step;
> +
> + ret = regmap_write(bq->regmap, BQ25980_BUSOVP, busovp_reg_code);
> + if (ret)
> + return ret;
> +
> + return regmap_write(bq->regmap, BQ25980_BUSOVP_ALM, busovp_reg_code);
> +}
> +
> +static int bq25980_get_const_charge_curr(struct bq25980_device *bq)
> +{
> + unsigned int batocp_reg_code;
> + int ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_BATOCP, &batocp_reg_code);
> + if (ret)
> + return ret;
> +
> + return (batocp_reg_code & BQ25980_BATOCP_MASK) *
> + BQ25980_BATOCP_STEP_uA;
> +}
> +
> +static int bq25980_set_const_charge_curr(struct bq25980_device *bq, int batocp)
> +{
> + unsigned int batocp_reg_code;
> + int ret;
> +
> + batocp = max(batocp, BQ25980_BATOCP_MIN_uA);
> + batocp = min(batocp, bq->chip_info->batocp_max);
> +
> + batocp_reg_code = batocp / BQ25980_BATOCP_STEP_uA;
> +
> + ret = regmap_update_bits(bq->regmap, BQ25980_BATOCP,
> + BQ25980_BATOCP_MASK, batocp_reg_code);
> + if (ret)
> + return ret;
> +
> + return regmap_update_bits(bq->regmap, BQ25980_BATOCP_ALM,
> + BQ25980_BATOCP_MASK, batocp_reg_code);
> +}
> +
> +static int bq25980_get_const_charge_volt(struct bq25980_device *bq)
> +{
> + unsigned int batovp_reg_code;
> + int ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_BATOVP, &batovp_reg_code);
> + if (ret)
> + return ret;
> +
> + return ((batovp_reg_code * bq->chip_info->batovp_step) +
> + bq->chip_info->batovp_offset);
> +}
> +
> +static int bq25980_set_const_charge_volt(struct bq25980_device *bq, int batovp)
> +{
> + unsigned int batovp_reg_code;
> + int ret;
> +
> + if (batovp < bq->chip_info->batovp_min)
> + batovp = bq->chip_info->batovp_min;
> +
> + if (batovp > bq->chip_info->batovp_max)
> + batovp = bq->chip_info->batovp_max;
> +
> + batovp_reg_code = (batovp - bq->chip_info->batovp_offset) /
> + bq->chip_info->batovp_step;
> +
> + ret = regmap_write(bq->regmap, BQ25980_BATOVP, batovp_reg_code);
> + if (ret)
> + return ret;
> +
> + return regmap_write(bq->regmap, BQ25980_BATOVP_ALM, batovp_reg_code);
> +}
> +
> +static int bq25980_set_bypass(struct bq25980_device *bq, bool en_bypass)
> +{
> + int ret;
> +
> + if (en_bypass)
> + ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_2,
> + BQ25980_EN_BYPASS, BQ25980_EN_BYPASS);
> + else
> + ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_2,
> + BQ25980_EN_BYPASS, en_bypass);
> + if (ret)
> + return ret;
> +
> + bq->state.bypass = en_bypass;
> +
> + return bq->state.bypass;
> +}
> +
> +static int bq25980_set_chg_en(struct bq25980_device *bq, bool en_chg)
> +{
> + int ret;
> +
> + if (en_chg)
> + ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_2,
> + BQ25980_CHG_EN, BQ25980_CHG_EN);
> + else
> + ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_2,
> + BQ25980_CHG_EN, en_chg);
> + if (ret)
> + return ret;
> +
> + bq->state.ce = en_chg;
> +
> + return 0;
> +}
> +
> +static int bq25980_get_adc_ibus(struct bq25980_device *bq)
> +{
> + int ibus_adc_lsb, ibus_adc_msb;
> + u16 ibus_adc;
> + int ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_IBUS_ADC_MSB, &ibus_adc_msb);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_IBUS_ADC_LSB, &ibus_adc_lsb);
> + if (ret)
> + return ret;
> +
> + ibus_adc = (ibus_adc_msb << 8) | ibus_adc_lsb;
> +
> + if (ibus_adc_msb & BQ25980_ADC_POLARITY_BIT)
> + return ((ibus_adc ^ 0xffff) + 1) * BQ25980_ADC_CURR_STEP_uA;
> +
> + return ibus_adc * BQ25980_ADC_CURR_STEP_uA;
> +}
> +
> +static int bq25980_get_adc_vbus(struct bq25980_device *bq)
> +{
> + int vbus_adc_lsb, vbus_adc_msb;
> + u16 vbus_adc;
> + int ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_VBUS_ADC_MSB, &vbus_adc_msb);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_VBUS_ADC_LSB, &vbus_adc_lsb);
> + if (ret)
> + return ret;
> +
> + vbus_adc = (vbus_adc_msb << 8) | vbus_adc_lsb;
> +
> + return vbus_adc * BQ25980_ADC_VOLT_STEP_uV;
> +}
> +
> +static int bq25980_get_ibat_adc(struct bq25980_device *bq)
> +{
> + int ret;
> + int ibat_adc_lsb, ibat_adc_msb;
> + int ibat_adc;
> +
> + ret = regmap_read(bq->regmap, BQ25980_IBAT_ADC_MSB, &ibat_adc_msb);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_IBAT_ADC_LSB, &ibat_adc_lsb);
> + if (ret)
> + return ret;
> +
> + ibat_adc = (ibat_adc_msb << 8) | ibat_adc_lsb;
> +
> + if (ibat_adc_msb & BQ25980_ADC_POLARITY_BIT)
> + return ((ibat_adc ^ 0xffff) + 1) * BQ25980_ADC_CURR_STEP_uA;
> +
> + return ibat_adc * BQ25980_ADC_CURR_STEP_uA;
> +}
> +
> +static int bq25980_get_adc_vbat(struct bq25980_device *bq)
> +{
> + int vsys_adc_lsb, vsys_adc_msb;
> + u16 vsys_adc;
> + int ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_VBAT_ADC_MSB, &vsys_adc_msb);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_VBAT_ADC_LSB, &vsys_adc_lsb);
> + if (ret)
> + return ret;
> +
> + vsys_adc = (vsys_adc_msb << 8) | vsys_adc_lsb;
> +
> + return vsys_adc * BQ25980_ADC_VOLT_STEP_uV;
> +}
> +
> +static int bq25980_get_state(struct bq25980_device *bq,
> + struct bq25980_state *state)
> +{
> + unsigned int chg_ctrl_2;
> + unsigned int stat1;
> + unsigned int stat2;
> + unsigned int stat3;
> + unsigned int stat4;
> + unsigned int ibat_adc_msb;
> + int ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_STAT1, &stat1);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_STAT2, &stat2);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_STAT3, &stat3);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_STAT4, &stat4);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_CHRGR_CTRL_2, &chg_ctrl_2);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(bq->regmap, BQ25980_IBAT_ADC_MSB, &ibat_adc_msb);
> + if (ret)
> + return ret;
> +
> + state->dischg = ibat_adc_msb & BQ25980_ADC_POLARITY_BIT;
> + state->ovp = (stat1 & BQ25980_STAT1_OVP_MASK) |
> + (stat3 & BQ25980_STAT3_OVP_MASK);
> + state->ocp = (stat1 & BQ25980_STAT1_OCP_MASK) |
> + (stat2 & BQ25980_STAT2_OCP_MASK);
> + state->tflt = stat4 & BQ25980_STAT4_TFLT_MASK;
> + state->wdt = stat4 & BQ25980_WD_STAT;
> + state->online = stat3 & BQ25980_PRESENT_MASK;
> + state->ce = chg_ctrl_2 & BQ25980_CHG_EN;
> + state->hiz = chg_ctrl_2 & BQ25980_EN_HIZ;
> + state->bypass = chg_ctrl_2 & BQ25980_EN_BYPASS;
> +
> + return 0;
> +}
> +
> +static int bq25980_set_battery_property(struct power_supply *psy,
> + enum power_supply_property psp,
> + const union power_supply_propval *val)
> +{
> + struct bq25980_device *bq = power_supply_get_drvdata(psy);
> + int ret = 0;
> +
> + if (ret)
> + return ret;
> +
> + switch (psp) {
> + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
> + ret = bq25980_set_const_charge_curr(bq, val->intval);
> + if (ret)
> + return ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
> + ret = bq25980_set_const_charge_volt(bq, val->intval);
> + if (ret)
> + return ret;
> + break;
> +
> + default:
> + return -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int bq25980_get_battery_property(struct power_supply *psy,
> + enum power_supply_property psp,
> + union power_supply_propval *val)
> +{
> + struct bq25980_device *bq = power_supply_get_drvdata(psy);
> + int ret = 0;
> +
> + 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_CURRENT_NOW:
> + ret = bq25980_get_ibat_adc(bq);
> + val->intval = ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_VOLTAGE_NOW:
> + ret = bq25980_get_adc_vbat(bq);
> + if (ret < 0)
> + return ret;
> +
> + val->intval = ret;
> + break;
> +
> + default:
> + return -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int bq25980_set_charger_property(struct power_supply *psy,
> + enum power_supply_property prop,
> + const union power_supply_propval *val)
> +{
> + struct bq25980_device *bq = power_supply_get_drvdata(psy);
> + int ret = -EINVAL;
> +
> + switch (prop) {
> + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
> + ret = bq25980_set_input_curr_lim(bq, val->intval);
> + if (ret)
> + return ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
> + ret = bq25980_set_input_volt_lim(bq, val->intval);
> + if (ret)
> + return ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_CHARGE_TYPE:
> + ret = bq25980_set_bypass(bq, val->intval);
> + if (ret)
> + return ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_STATUS:
> + ret = bq25980_set_chg_en(bq, val->intval);
> + if (ret)
> + return ret;
> + break;
> +
> + default:
> + return -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int bq25980_get_charger_property(struct power_supply *psy,
> + enum power_supply_property psp,
> + union power_supply_propval *val)
> +{
> + struct bq25980_device *bq = power_supply_get_drvdata(psy);
> + struct bq25980_state state;
> + int ret = 0;
> +
> + mutex_lock(&bq->lock);
> + ret = bq25980_get_state(bq, &state);
> + mutex_unlock(&bq->lock);
> + if (ret)
> + return ret;
> +
> + switch (psp) {
> + case POWER_SUPPLY_PROP_MANUFACTURER:
> + val->strval = BQ25980_MANUFACTURER;
> + break;
> + case POWER_SUPPLY_PROP_MODEL_NAME:
> + val->strval = bq->model_name;
> + break;
> + case POWER_SUPPLY_PROP_ONLINE:
> + val->intval = state.online;
> + break;
> +
> + case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
> + ret = bq25980_get_input_volt_lim(bq);
> + if (ret < 0)
> + return ret;
> + val->intval = ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
> + ret = bq25980_get_input_curr_lim(bq);
> + if (ret < 0)
> + return ret;
> +
> + val->intval = ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_HEALTH:
> + val->intval = POWER_SUPPLY_HEALTH_GOOD;
> +
> + if (state.tflt)
> + val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
> + else if (state.ovp)
> + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
> + else if (state.ocp)
> + val->intval = POWER_SUPPLY_HEALTH_OVERCURRENT;
> + else if (state.wdt)
> + val->intval =
> + POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE;
> + break;
> +
> + case POWER_SUPPLY_PROP_STATUS:
> + val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
> +
> + if ((state.ce) && (!state.hiz))
> + val->intval = POWER_SUPPLY_STATUS_CHARGING;
> + else if (state.dischg)
> + val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
> + else if (!state.ce)
> + val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
> + break;
> +
> + case POWER_SUPPLY_PROP_CHARGE_TYPE:
> + val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
> +
> + if (!state.ce)
> + val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE;
> + else if (state.bypass)
> + val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
> + else if (!state.bypass)
> + val->intval = POWER_SUPPLY_CHARGE_TYPE_STANDARD;
> + break;
> +
> + case POWER_SUPPLY_PROP_CURRENT_NOW:
> + ret = bq25980_get_adc_ibus(bq);
> + if (ret < 0)
> + return ret;
> +
> + val->intval = ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_VOLTAGE_NOW:
> + ret = bq25980_get_adc_vbus(bq);
> + if (ret < 0)
> + return ret;
> +
> + val->intval = ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
> + ret = bq25980_get_const_charge_curr(bq);
> + if (ret < 0)
> + return ret;
> +
> + val->intval = ret;
> + break;
> +
> + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
> + ret = bq25980_get_const_charge_volt(bq);
> + if (ret < 0)
> + return ret;
> +
> + val->intval = ret;
> + break;
> +
> + default:
> + return -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static bool bq25980_state_changed(struct bq25980_device *bq,
> + struct bq25980_state *new_state)
> +{
> + struct bq25980_state old_state;
> +
> + mutex_lock(&bq->lock);
> + old_state = bq->state;
> + mutex_unlock(&bq->lock);
> +
> + return (old_state.dischg != new_state->dischg ||
> + old_state.ovp != new_state->ovp ||
> + old_state.ocp != new_state->ocp ||
> + old_state.online != new_state->online ||
> + old_state.wdt != new_state->wdt ||
> + old_state.tflt != new_state->tflt ||
> + old_state.ce != new_state->ce ||
> + old_state.hiz != new_state->hiz ||
> + old_state.bypass != new_state->bypass);
> +}
> +
> +static irqreturn_t bq25980_irq_handler_thread(int irq, void *private)
> +{
> + struct bq25980_device *bq = private;
> + struct bq25980_state state;
> + int ret;
> +
> + ret = bq25980_get_state(bq, &state);
> + if (ret < 0)
> + goto irq_out;
> +
> + if (!bq25980_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 bq25980_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_INPUT_VOLTAGE_LIMIT,
> + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
> + POWER_SUPPLY_PROP_CHARGE_TYPE,
> + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
> + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
> + POWER_SUPPLY_PROP_CURRENT_NOW,
> + POWER_SUPPLY_PROP_VOLTAGE_NOW,
> +};
> +
> +static enum power_supply_property bq25980_battery_props[] = {
> + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
> + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
> + POWER_SUPPLY_PROP_CURRENT_NOW,
> + POWER_SUPPLY_PROP_VOLTAGE_NOW,
> +};
> +
> +static char *bq25980_charger_supplied_to[] = {
> + "main-battery",
> +};
> +
> +static int bq25980_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_CHARGE_TYPE:
> + case POWER_SUPPLY_PROP_STATUS:
> + case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct power_supply_desc bq25980_power_supply_desc = {
> + .name = "bq25980-charger",
> + .type = POWER_SUPPLY_TYPE_MAINS,
> + .properties = bq25980_power_supply_props,
> + .num_properties = ARRAY_SIZE(bq25980_power_supply_props),
> + .get_property = bq25980_get_charger_property,
> + .set_property = bq25980_set_charger_property,
> + .property_is_writeable = bq25980_property_is_writeable,
> +};
> +
> +static struct power_supply_desc bq25980_battery_desc = {
> + .name = "bq25980-battery",
> + .type = POWER_SUPPLY_TYPE_BATTERY,
> + .get_property = bq25980_get_battery_property,
> + .set_property = bq25980_set_battery_property,
> + .properties = bq25980_battery_props,
> + .num_properties = ARRAY_SIZE(bq25980_battery_props),
> + .property_is_writeable = bq25980_property_is_writeable,
> +};
> +
> +
> +static bool bq25980_is_volatile_reg(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case BQ25980_CHRGR_CTRL_2:
> + case BQ25980_STAT1...BQ25980_FLAG5:
> + case BQ25980_ADC_CONTROL1...BQ25980_TDIE_ADC_LSB:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct regmap_config bq25980_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = BQ25980_CHRGR_CTRL_6,
> + .reg_defaults = bq25980_reg_defs,
> + .num_reg_defaults = ARRAY_SIZE(bq25980_reg_defs),
> + .cache_type = REGCACHE_RBTREE,
> + .volatile_reg = bq25980_is_volatile_reg,
> +};
> +
> +static const struct regmap_config bq25975_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = BQ25980_CHRGR_CTRL_6,
> + .reg_defaults = bq25975_reg_defs,
> + .num_reg_defaults = ARRAY_SIZE(bq25975_reg_defs),
> + .cache_type = REGCACHE_RBTREE,
> + .volatile_reg = bq25980_is_volatile_reg,
> +};
> +
> +static const struct regmap_config bq25960_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = BQ25980_CHRGR_CTRL_6,
> + .reg_defaults = bq25960_reg_defs,
> + .num_reg_defaults = ARRAY_SIZE(bq25960_reg_defs),
> + .cache_type = REGCACHE_RBTREE,
> + .volatile_reg = bq25980_is_volatile_reg,
> +};
> +
> +static const struct bq25980_chip_info bq25980_chip_info_tbl[] = {
> + [BQ25980] = {
> + .model_id = BQ25980,
> + .regmap_config = &bq25980_regmap_config,
> +
> + .busocp_def = BQ25980_BUSOCP_DFLT_uA,
> + .busocp_sc_min = BQ25960_BUSOCP_SC_MAX_uA,
> + .busocp_sc_max = BQ25980_BUSOCP_SC_MAX_uA,
> + .busocp_byp_max = BQ25980_BUSOCP_BYP_MAX_uA,
> + .busocp_byp_min = BQ25980_BUSOCP_MIN_uA,
> +
> + .busovp_sc_def = BQ25980_BUSOVP_DFLT_uV,
> + .busovp_byp_def = BQ25980_BUSOVP_BYPASS_DFLT_uV,
> + .busovp_sc_step = BQ25980_BUSOVP_SC_STEP_uV,
> + .busovp_sc_offset = BQ25980_BUSOVP_SC_OFFSET_uV,
> + .busovp_byp_step = BQ25980_BUSOVP_BYP_STEP_uV,
> + .busovp_byp_offset = BQ25980_BUSOVP_BYP_OFFSET_uV,
> + .busovp_sc_min = BQ25980_BUSOVP_SC_MIN_uV,
> + .busovp_sc_max = BQ25980_BUSOVP_SC_MAX_uV,
> + .busovp_byp_min = BQ25980_BUSOVP_BYP_MIN_uV,
> + .busovp_byp_max = BQ25980_BUSOVP_BYP_MAX_uV,
> +
> + .batovp_def = BQ25980_BATOVP_DFLT_uV,
> + .batovp_max = BQ25980_BATOVP_MAX_uV,
> + .batovp_min = BQ25980_BATOVP_MIN_uV,
> + .batovp_step = BQ25980_BATOVP_STEP_uV,
> + .batovp_offset = BQ25980_BATOVP_OFFSET_uV,
> +
> + .batocp_def = BQ25980_BATOCP_DFLT_uA,
> + .batocp_max = BQ25980_BATOCP_MAX_uA,
> + },
> +
> + [BQ25975] = {
> + .model_id = BQ25975,
> + .regmap_config = &bq25975_regmap_config,
> +
> + .busocp_def = BQ25975_BUSOCP_DFLT_uA,
> + .busocp_sc_min = BQ25975_BUSOCP_SC_MAX_uA,
> + .busocp_sc_max = BQ25975_BUSOCP_SC_MAX_uA,
> + .busocp_byp_min = BQ25980_BUSOCP_MIN_uA,
> + .busocp_byp_max = BQ25975_BUSOCP_BYP_MAX_uA,
> +
> + .busovp_sc_def = BQ25975_BUSOVP_DFLT_uV,
> + .busovp_byp_def = BQ25975_BUSOVP_BYPASS_DFLT_uV,
> + .busovp_sc_step = BQ25975_BUSOVP_SC_STEP_uV,
> + .busovp_sc_offset = BQ25975_BUSOVP_SC_OFFSET_uV,
> + .busovp_byp_step = BQ25975_BUSOVP_BYP_STEP_uV,
> + .busovp_byp_offset = BQ25975_BUSOVP_BYP_OFFSET_uV,
> + .busovp_sc_min = BQ25975_BUSOVP_SC_MIN_uV,
> + .busovp_sc_max = BQ25975_BUSOVP_SC_MAX_uV,
> + .busovp_byp_min = BQ25975_BUSOVP_BYP_MIN_uV,
> + .busovp_byp_max = BQ25975_BUSOVP_BYP_MAX_uV,
> +
> + .batovp_def = BQ25975_BATOVP_DFLT_uV,
> + .batovp_max = BQ25975_BATOVP_MAX_uV,
> + .batovp_min = BQ25975_BATOVP_MIN_uV,
> + .batovp_step = BQ25975_BATOVP_STEP_uV,
> + .batovp_offset = BQ25975_BATOVP_OFFSET_uV,
> +
> + .batocp_def = BQ25980_BATOCP_DFLT_uA,
> + .batocp_max = BQ25980_BATOCP_MAX_uA,
> + },
> +
> + [BQ25960] = {
> + .model_id = BQ25960,
> + .regmap_config = &bq25960_regmap_config,
> +
> + .busocp_def = BQ25960_BUSOCP_DFLT_uA,
> + .busocp_sc_min = BQ25960_BUSOCP_SC_MAX_uA,
> + .busocp_sc_max = BQ25960_BUSOCP_SC_MAX_uA,
> + .busocp_byp_min = BQ25960_BUSOCP_SC_MAX_uA,
> + .busocp_byp_max = BQ25960_BUSOCP_BYP_MAX_uA,
> +
> + .busovp_sc_def = BQ25975_BUSOVP_DFLT_uV,
> + .busovp_byp_def = BQ25975_BUSOVP_BYPASS_DFLT_uV,
> + .busovp_sc_step = BQ25960_BUSOVP_SC_STEP_uV,
> + .busovp_sc_offset = BQ25960_BUSOVP_SC_OFFSET_uV,
> + .busovp_byp_step = BQ25960_BUSOVP_BYP_STEP_uV,
> + .busovp_byp_offset = BQ25960_BUSOVP_BYP_OFFSET_uV,
> + .busovp_sc_min = BQ25960_BUSOVP_SC_MIN_uV,
> + .busovp_sc_max = BQ25960_BUSOVP_SC_MAX_uV,
> + .busovp_byp_min = BQ25960_BUSOVP_BYP_MIN_uV,
> + .busovp_byp_max = BQ25960_BUSOVP_BYP_MAX_uV,
> +
> + .batovp_def = BQ25960_BATOVP_DFLT_uV,
> + .batovp_max = BQ25960_BATOVP_MAX_uV,
> + .batovp_min = BQ25960_BATOVP_MIN_uV,
> + .batovp_step = BQ25960_BATOVP_STEP_uV,
> + .batovp_offset = BQ25960_BATOVP_OFFSET_uV,
> +
> + .batocp_def = BQ25960_BATOCP_DFLT_uA,
> + .batocp_max = BQ25960_BATOCP_MAX_uA,
> + },
> +};
> +
> +static int bq25980_power_supply_init(struct bq25980_device *bq,
> + struct device *dev)
> +{
> + struct power_supply_config psy_cfg = { .drv_data = bq,
> + .of_node = dev->of_node, };
> +
> + psy_cfg.supplied_to = bq25980_charger_supplied_to;
> + psy_cfg.num_supplicants = ARRAY_SIZE(bq25980_charger_supplied_to);
> +
> + bq->charger = devm_power_supply_register(bq->dev,
> + &bq25980_power_supply_desc,
> + &psy_cfg);
> + if (IS_ERR(bq->charger))
> + return -EINVAL;
> +
> + bq->battery = devm_power_supply_register(bq->dev,
> + &bq25980_battery_desc,
> + &psy_cfg);
> + if (IS_ERR(bq->battery))
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +static int bq25980_hw_init(struct bq25980_device *bq)
> +{
> + struct power_supply_battery_info bat_info = { };
> + int wd_reg_val;
> + int ret = 0;
> + int curr_val;
> + int volt_val;
> + int i;
> +
> + if (!bq->watchdog_timer) {
> + ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_3,
> + BQ25980_WATCHDOG_DIS,
> + BQ25980_WATCHDOG_DIS);
> + } else {
> + for (i = 0; i < BQ25980_NUM_WD_VAL; i++) {
> + if (bq->watchdog_timer > bq25980_watchdog_time[i] &&
> + bq->watchdog_timer < bq25980_watchdog_time[i + 1]) {
> + wd_reg_val = i;
> + break;
> + }
> + }
> +
> + ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_3,
> + BQ25980_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\n");
> + return -EINVAL;
> + }
> +
> + bq->init_data.ichg_max = bat_info.constant_charge_current_max_ua;
> + bq->init_data.vreg_max = bat_info.constant_charge_voltage_max_uv;
> +
> + if (bq->state.bypass) {
> + ret = regmap_update_bits(bq->regmap, BQ25980_CHRGR_CTRL_2,
> + BQ25980_EN_BYPASS, BQ25980_EN_BYPASS);
> + if (ret)
> + return ret;
> +
> + curr_val = bq->init_data.bypass_ilim;
> + volt_val = bq->init_data.bypass_vlim;
> + } else {
> + curr_val = bq->init_data.sc_ilim;
> + volt_val = bq->init_data.sc_vlim;
> + }
> +
> + ret = bq25980_set_input_curr_lim(bq, curr_val);
> + if (ret)
> + return ret;
> +
> + ret = bq25980_set_input_volt_lim(bq, volt_val);
> + if (ret)
> + return ret;
> +
> + return regmap_update_bits(bq->regmap, BQ25980_ADC_CONTROL1,
> + BQ25980_ADC_EN, BQ25980_ADC_EN);
> +}
> +
> +static int bq25980_parse_dt(struct bq25980_device *bq)
> +{
> + int ret;
> +
> + ret = device_property_read_u32(bq->dev, "ti,watchdog-timeout-ms",
> + &bq->watchdog_timer);
> + if (ret)
> + bq->watchdog_timer = BQ25980_WATCHDOG_MIN;
> +
> + if (bq->watchdog_timer > BQ25980_WATCHDOG_MAX ||
> + bq->watchdog_timer < BQ25980_WATCHDOG_MIN)
> + return -EINVAL;
> +
> + ret = device_property_read_u32(bq->dev,
> + "ti,sc-ovp-limit-microvolt",
> + &bq->init_data.sc_vlim);
> + if (ret)
> + bq->init_data.sc_vlim = bq->chip_info->busovp_sc_def;
> +
> + if (bq->init_data.sc_vlim > bq->chip_info->busovp_sc_max ||
> + bq->init_data.sc_vlim < bq->chip_info->busovp_sc_min) {
> + dev_err(bq->dev, "SC ovp limit is out of range\n");
> + return -EINVAL;
> + }
> +
> + ret = device_property_read_u32(bq->dev,
> + "ti,sc-ocp-limit-microamp",
> + &bq->init_data.sc_ilim);
> + if (ret)
> + bq->init_data.sc_ilim = bq->chip_info->busocp_def;
> +
> + if (bq->init_data.sc_ilim > bq->chip_info->busocp_sc_max ||
> + bq->init_data.sc_ilim < bq->chip_info->busocp_sc_min) {
> + dev_err(bq->dev, "SC ocp limit is out of range\n");
> + return -EINVAL;
> + }
> +
> + ret = device_property_read_u32(bq->dev,
> + "ti,bypass-ovp-limit-microvolt",
> + &bq->init_data.bypass_vlim);
> + if (ret)
> + bq->init_data.bypass_vlim = bq->chip_info->busovp_byp_def;
> +
> + if (bq->init_data.bypass_vlim > bq->chip_info->busovp_byp_max ||
> + bq->init_data.bypass_vlim < bq->chip_info->busovp_byp_min) {
> + dev_err(bq->dev, "Bypass ovp limit is out of range\n");
> + return -EINVAL;
> + }
> +
> + ret = device_property_read_u32(bq->dev,
> + "ti,bypass-ocp-limit-microamp",
> + &bq->init_data.bypass_ilim);
> + if (ret)
> + bq->init_data.bypass_ilim = bq->chip_info->busocp_def;
> +
> + if (bq->init_data.bypass_ilim > bq->chip_info->busocp_byp_max ||
> + bq->init_data.bypass_ilim < bq->chip_info->busocp_byp_min) {
> + dev_err(bq->dev, "Bypass ocp limit is out of range\n");
> + return -EINVAL;
> + }
> +
> +
> + bq->state.bypass = device_property_read_bool(bq->dev,
> + "ti,bypass-enable");
> + return 0;
> +}
> +
> +static int bq25980_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct device *dev = &client->dev;
> + struct bq25980_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->chip_info = &bq25980_chip_info_tbl[id->driver_data];
> +
> + bq->regmap = devm_regmap_init_i2c(client,
> + bq->chip_info->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 = bq25980_parse_dt(bq);
> + if (ret) {
> + dev_err(dev, "Failed to read device tree properties%d\n", ret);
> + return ret;
> + }
> +
> + if (client->irq) {
> + ret = devm_request_threaded_irq(dev, client->irq, NULL,
> + bq25980_irq_handler_thread,
> + IRQF_TRIGGER_FALLING |
> + IRQF_ONESHOT,
> + dev_name(&client->dev), bq);
> + if (ret)
> + return ret;
> + }
> +
> + ret = bq25980_power_supply_init(bq, dev);
> + if (ret) {
> + dev_err(dev, "Failed to register power supply\n");
> + return ret;
> + }
> +
> + ret = bq25980_hw_init(bq);
> + if (ret) {
> + dev_err(dev, "Cannot initialize the chip.\n");
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static const struct i2c_device_id bq25980_i2c_ids[] = {
> + { "bq25980", BQ25980 },
> + { "bq25975", BQ25975 },
> + { "bq25975", BQ25975 },
> + {},
> +};
> +MODULE_DEVICE_TABLE(i2c, bq25980_i2c_ids);
> +
> +static const struct of_device_id bq25980_of_match[] = {
> + { .compatible = "ti,bq25980", .data = (void *)BQ25980 },
> + { .compatible = "ti,bq25975", .data = (void *)BQ25975 },
> + { .compatible = "ti,bq25960", .data = (void *)BQ25960 },
> + { },
> +};
> +MODULE_DEVICE_TABLE(of, bq25980_of_match);
> +
> +static struct i2c_driver bq25980_driver = {
> + .driver = {
> + .name = "bq25980-charger",
> + .of_match_table = bq25980_of_match,
> + },
> + .probe = bq25980_probe,
> + .id_table = bq25980_i2c_ids,
> +};
> +module_i2c_driver(bq25980_driver);
> +
> +MODULE_AUTHOR("Dan Murphy <dmurphy@...com>");
> +MODULE_AUTHOR("Ricardo Rivera-Matos <r-rivera-matos@...com>");
> +MODULE_DESCRIPTION("bq25980 charger driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/power/supply/bq25980_charger.h b/drivers/power/supply/bq25980_charger.h
> new file mode 100644
> index 000000000000..39f94eba5f6c
> --- /dev/null
> +++ b/drivers/power/supply/bq25980_charger.h
> @@ -0,0 +1,178 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ */
> +
> +#ifndef BQ25980_CHARGER_H
> +#define BQ25980_CHARGER_H
> +
> +#define BQ25980_MANUFACTURER "Texas Instruments"
> +
> +#define BQ25980_BATOVP 0x0
> +#define BQ25980_BATOVP_ALM 0x1
> +#define BQ25980_BATOCP 0x2
> +#define BQ25980_BATOCP_ALM 0x3
> +#define BQ25980_BATUCP_ALM 0x4
> +#define BQ25980_CHRGR_CTRL_1 0x5
> +#define BQ25980_BUSOVP 0x6
> +#define BQ25980_BUSOVP_ALM 0x7
> +#define BQ25980_BUSOCP 0x8
> +#define BQ25980_BUSOCP_ALM 0x9
> +#define BQ25980_TEMP_CONTROL 0xA
> +#define BQ25980_TDIE_ALM 0xB
> +#define BQ25980_TSBUS_FLT 0xC
> +#define BQ25980_TSBAT_FLG 0xD
> +#define BQ25980_VAC_CONTROL 0xE
> +#define BQ25980_CHRGR_CTRL_2 0xF
> +#define BQ25980_CHRGR_CTRL_3 0x10
> +#define BQ25980_CHRGR_CTRL_4 0x11
> +#define BQ25980_CHRGR_CTRL_5 0x12
> +#define BQ25980_STAT1 0x13
> +#define BQ25980_STAT2 0x14
> +#define BQ25980_STAT3 0x15
> +#define BQ25980_STAT4 0x16
> +#define BQ25980_STAT5 0x17
> +#define BQ25980_FLAG1 0x18
> +#define BQ25980_FLAG2 0x19
> +#define BQ25980_FLAG3 0x1A
> +#define BQ25980_FLAG4 0x1B
> +#define BQ25980_FLAG5 0x1C
> +#define BQ25980_MASK1 0x1D
> +#define BQ25980_MASK2 0x1E
> +#define BQ25980_MASK3 0x1F
> +#define BQ25980_MASK4 0x20
> +#define BQ25980_MASK5 0x21
> +#define BQ25980_DEVICE_INFO 0x22
> +#define BQ25980_ADC_CONTROL1 0x23
> +#define BQ25980_ADC_CONTROL2 0x24
> +#define BQ25980_IBUS_ADC_MSB 0x25
> +#define BQ25980_IBUS_ADC_LSB 0x26
> +#define BQ25980_VBUS_ADC_MSB 0x27
> +#define BQ25980_VBUS_ADC_LSB 0x28
> +#define BQ25980_VAC1_ADC_MSB 0x29
> +#define BQ25980_VAC1_ADC_LSB 0x2A
> +#define BQ25980_VAC2_ADC_MSB 0x2B
> +#define BQ25980_VAC2_ADC_LSB 0x2C
> +#define BQ25980_VOUT_ADC_MSB 0x2D
> +#define BQ25980_VOUT_ADC_LSB 0x2E
> +#define BQ25980_VBAT_ADC_MSB 0x2F
> +#define BQ25980_VBAT_ADC_LSB 0x30
> +#define BQ25980_IBAT_ADC_MSB 0x31
> +#define BQ25980_IBAT_ADC_LSB 0x32
> +#define BQ25980_TSBUS_ADC_MSB 0x33
> +#define BQ25980_TSBUS_ADC_LSB 0x34
> +#define BQ25980_TSBAT_ADC_MSB 0x35
> +#define BQ25980_TSBAT_ADC_LSB 0x36
> +#define BQ25980_TDIE_ADC_MSB 0x37
> +#define BQ25980_TDIE_ADC_LSB 0x38
> +#define BQ25980_DEGLITCH_TIME 0x39
> +#define BQ25980_CHRGR_CTRL_6 0x3A
> +
> +#define BQ25980_BUSOCP_STEP_uA 250000
> +#define BQ25980_BUSOCP_OFFSET_uA 1000000
> +
> +#define BQ25980_BUSOCP_DFLT_uA 4250000
> +#define BQ25975_BUSOCP_DFLT_uA 4250000
> +#define BQ25960_BUSOCP_DFLT_uA 3250000
> +
> +#define BQ25980_BUSOCP_MIN_uA 1000000
> +
> +#define BQ25980_BUSOCP_SC_MAX_uA 5750000
> +#define BQ25975_BUSOCP_SC_MAX_uA 5750000
> +#define BQ25960_BUSOCP_SC_MAX_uA 3750000
> +
> +#define BQ25980_BUSOCP_BYP_MAX_uA 8500000
> +#define BQ25975_BUSOCP_BYP_MAX_uA 8500000
> +#define BQ25960_BUSOCP_BYP_MAX_uA 5750000
> +
> +#define BQ25980_BUSOVP_SC_STEP_uV 100000
> +#define BQ25975_BUSOVP_SC_STEP_uV 50000
> +#define BQ25960_BUSOVP_SC_STEP_uV 50000
> +#define BQ25980_BUSOVP_SC_OFFSET_uV 14000000
> +#define BQ25975_BUSOVP_SC_OFFSET_uV 7000000
> +#define BQ25960_BUSOVP_SC_OFFSET_uV 7000000
> +
> +#define BQ25980_BUSOVP_BYP_STEP_uV 50000
> +#define BQ25975_BUSOVP_BYP_STEP_uV 25000
> +#define BQ25960_BUSOVP_BYP_STEP_uV 25000
> +#define BQ25980_BUSOVP_BYP_OFFSET_uV 7000000
> +#define BQ25975_BUSOVP_BYP_OFFSET_uV 3500000
> +#define BQ25960_BUSOVP_BYP_OFFSET_uV 3500000
> +
> +#define BQ25980_BUSOVP_DFLT_uV 17800000
> +#define BQ25980_BUSOVP_BYPASS_DFLT_uV 8900000
> +#define BQ25975_BUSOVP_DFLT_uV 8900000
> +#define BQ25975_BUSOVP_BYPASS_DFLT_uV 4450000
> +#define BQ25960_BUSOVP_DFLT_uV 8900000
> +
> +#define BQ25980_BUSOVP_SC_MIN_uV 14000000
> +#define BQ25975_BUSOVP_SC_MIN_uV 7000000
> +#define BQ25960_BUSOVP_SC_MIN_uV 7000000
> +#define BQ25980_BUSOVP_BYP_MIN_uV 7000000
> +#define BQ25975_BUSOVP_BYP_MIN_uV 3500000
> +#define BQ25960_BUSOVP_BYP_MIN_uV 3500000
> +
> +#define BQ25980_BUSOVP_SC_MAX_uV 22000000
> +#define BQ25975_BUSOVP_SC_MAX_uV 12750000
> +#define BQ25960_BUSOVP_SC_MAX_uV 12750000
> +
> +#define BQ25980_BUSOVP_BYP_MAX_uV 12750000
> +#define BQ25975_BUSOVP_BYP_MAX_uV 6500000
> +#define BQ25960_BUSOVP_BYP_MAX_uV 6500000
> +
> +#define BQ25980_BATOVP_STEP_uV 20000
> +#define BQ25975_BATOVP_STEP_uV 10000
> +#define BQ25960_BATOVP_STEP_uV 10000
> +
> +#define BQ25980_BATOVP_OFFSET_uV 7000000
> +#define BQ25975_BATOVP_OFFSET_uV 3500000
> +#define BQ25960_BATOVP_OFFSET_uV 3500000
> +
> +#define BQ25980_BATOVP_DFLT_uV 14000000
> +#define BQ25975_BATOVP_DFLT_uV 8900000
> +#define BQ25960_BATOVP_DFLT_uV 8900000
> +
> +#define BQ25980_BATOVP_MIN_uV 7000000
> +#define BQ25975_BATOVP_MIN_uV 3500000
> +#define BQ25960_BATOVP_MIN_uV 3500000
> +
> +#define BQ25980_BATOVP_MAX_uV 9540000
> +#define BQ25975_BATOVP_MAX_uV 4770000
> +#define BQ25960_BATOVP_MAX_uV 4770000
> +
> +#define BQ25980_BATOCP_STEP_uA 100000
> +
> +#define BQ25980_BATOCP_MASK GENMASK(6, 0)
> +
> +#define BQ25980_BATOCP_DFLT_uA 8100000
> +#define BQ25960_BATOCP_DFLT_uA 6100000
> +
> +#define BQ25980_BATOCP_MIN_uA 2000000
> +
> +#define BQ25980_BATOCP_MAX_uA 11000000
> +#define BQ25975_BATOCP_MAX_uA 11000000
> +#define BQ25960_BATOCP_MAX_uA 7000000
> +
> +#define BQ25980_ENABLE_HIZ 0xff
> +#define BQ25980_DISABLE_HIZ 0x0
> +#define BQ25980_EN_BYPASS BIT(3)
> +#define BQ25980_STAT1_OVP_MASK (BIT(6) | BIT(5) | BIT(0))
> +#define BQ25980_STAT3_OVP_MASK (BIT(7) | BIT(6))
> +#define BQ25980_STAT1_OCP_MASK BIT(3)
> +#define BQ25980_STAT2_OCP_MASK (BIT(6) | BIT(1))
> +#define BQ25980_STAT4_TFLT_MASK GENMASK(5, 1)
> +#define BQ25980_WD_STAT BIT(0)
> +#define BQ25980_PRESENT_MASK GENMASK(4, 2)
> +#define BQ25980_CHG_EN BIT(4)
> +#define BQ25980_EN_HIZ BIT(6)
> +#define BQ25980_ADC_EN BIT(7)
> +
> +#define BQ25980_ADC_VOLT_STEP_uV 1000
> +#define BQ25980_ADC_CURR_STEP_uA 1000
> +#define BQ25980_ADC_POLARITY_BIT BIT(7)
> +
> +#define BQ25980_WATCHDOG_MASK GENMASK(4, 3)
> +#define BQ25980_WATCHDOG_DIS BIT(2)
> +#define BQ25980_WATCHDOG_MAX 300000
> +#define BQ25980_WATCHDOG_MIN 0
> +#define BQ25980_NUM_WD_VAL 4
> +
> +#endif /* BQ25980_CHARGER_H */
> --
> 2.28.0
>
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