| Message ID | 20200831164849.31313-1-dmurphy@ti.com |
|---|---|
| State | Accepted |
| Commit | 6d3dd362fa0308fc55337623baec2b02f15b76e2 |
| Headers | show |
| Series | [1/2] dt-binding: bq25980: Add the bq25980 flash charger | expand |
On Mon, 31 Aug 2020 11:48:48 -0500, Dan Murphy wrote: > Add yaml for the bq25980 flash charger. > > Signed-off-by: Dan Murphy <dmurphy@ti.com> > --- > .../bindings/power/supply/bq25980.yaml | 114 ++++++++++++++++++ > 1 file changed, 114 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/supply/bq25980.yaml > Reviewed-by: Rob Herring <robh@kernel.org>
Hello On 8/31/20 11:48 AM, Dan Murphy wrote: > Add support for the BQ25980, BQ25975 and BQ25960 family of flash > chargers. Gentle Bump
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@ti.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@ti.com>"); > +MODULE_AUTHOR("Ricardo Rivera-Matos <r-rivera-matos@ti.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 >
diff --git a/Documentation/devicetree/bindings/power/supply/bq25980.yaml b/Documentation/devicetree/bindings/power/supply/bq25980.yaml new file mode 100644 index 000000000000..f6b3dd4093ca --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/bq25980.yaml @@ -0,0 +1,114 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/power/supply/bq25980.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: TI BQ25980 Flash Charger + +maintainers: + - Dan Murphy <dmurphy@ti.com> + - Ricardo Rivera-Matos <r-rivera-matos@ti.com> + +description: | + The BQ25980, BQ25975, and BQ25960 are a series of flash chargers intended + for use in high-power density portable electronics. These inductorless + switching chargers can provide over 97% efficiency by making use of the + switched capacitor architecture. + +allOf: + - $ref: power-supply.yaml# + +properties: + compatible: + enum: + - ti,bq25980 + - ti,bq25975 + - ti,bq25960 + + reg: + maxItems: 1 + + ti,watchdog-timeout-ms: + description: | + Watchdog timer in milli seconds. 0 disables the watchdog. + default: 0 + minimum: 0 + maximum: 300000 + enum: [ 0, 5000, 10000, 50000, 300000] + + ti,sc-ovp-limit-microvolt: + description: | + Minimum input voltage limit in micro volts with a when the charger is in + switch cap mode. 100000 micro volt step. + default: 17800000 + minimum: 14000000 + maximum: 22000000 + + ti,sc-ocp-limit-microamp: + description: | + Maximum input current limit in micro amps with a 100000 micro amp step. + minimum: 100000 + maximum: 3300000 + + ti,bypass-ovp-limit-microvolt: + description: | + Minimum input voltage limit in micro volts with a when the charger is in + switch cap mode. 50000 micro volt step. + minimum: 7000000 + maximum: 12750000 + + ti,bypass-ocp-limit-microamp: + description: | + Maximum input current limit in micro amps with a 100000 micro amp step. + minimum: 100000 + maximum: 3300000 + + ti,bypass-enable: + type: boolean + description: Enables bypass mode at boot time + + interrupts: + description: | + Indicates that the device state has changed. + + monitored-battery: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to the battery node being monitored + +required: + - compatible + - reg + - monitored-battery + +unevaluatedProperties: false + +examples: + - | + bat: battery { + compatible = "simple-battery"; + constant-charge-current-max-microamp = <4000000>; + constant-charge-voltage-max-microvolt = <8400000>; + precharge-current-microamp = <160000>; + charge-term-current-microamp = <160000>; + }; + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + bq25980: charger@65 { + compatible = "ti,bq25980"; + reg = <0x65>; + interrupt-parent = <&gpio1>; + interrupts = <16 IRQ_TYPE_EDGE_FALLING>; + ti,watchdog-timer = <0>; + ti,sc-ocp-limit-microamp = <2000000>; + ti,sc-ovp-limit-microvolt = <17800000>; + monitored-battery = <&bat>; + }; + }; + +...
Add yaml for the bq25980 flash charger. Signed-off-by: Dan Murphy <dmurphy@ti.com> --- .../bindings/power/supply/bq25980.yaml | 114 ++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/bq25980.yaml