[PATCH 2/2] power: bq25980: Add support for the BQ259xx family
From: Dan Murphy
Date: Mon Aug 31 2020 - 12:49:07 EST
Add support for the BQ25980, BQ25975 and BQ25960 family of flash
chargers.
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
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@xxxxxx>");
+MODULE_AUTHOR("Ricardo Rivera-Matos <r-rivera-matos@xxxxxx>");
+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