Hi, On Fri, Feb 05, 2021 at 07:10:04AM +0000, LI Qingwu wrote: > Add support for TI BQ78Z100, I2C interface gas gauge. > It provides a fully integrated safety protection > and authentication for 1 to 2-series cell Li-Ion and > Li-Polymer battery packs. > > The patch was tested with BQ78Z100 equipment. > > Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> > Signed-off-by: LI Qingwu <Qing-wu.Li@xxxxxxxxxxxxxxxxxxxxxxx> > --- > drivers/power/supply/bq27xxx_battery.c | 46 +++++++++++++++++++++- > drivers/power/supply/bq27xxx_battery_i2c.c | 2 + > include/linux/power/bq27xxx_battery.h | 1 + > 3 files changed, 48 insertions(+), 1 deletion(-) > > diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c > index 315e0909e6a4..c8579ec7a4f8 100644 > --- a/drivers/power/supply/bq27xxx_battery.c > +++ b/drivers/power/supply/bq27xxx_battery.c > @@ -39,6 +39,7 @@ > * https://www.ti.com/product/bq27z561 > * https://www.ti.com/product/bq28z610 > * https://www.ti.com/product/bq34z100-g1 > + * https://www.ti.com/product/bq78z100 > */ > > #include <linux/device.h> > @@ -497,7 +498,27 @@ static u8 > [BQ27XXX_REG_DCAP] = 0x3c, > [BQ27XXX_REG_AP] = 0x22, > BQ27XXX_DM_REG_ROWS, > - }; > + }, > + bq78z100_regs[BQ27XXX_REG_MAX] = { > + [BQ27XXX_REG_CTRL] = 0x00, > + [BQ27XXX_REG_TEMP] = 0x06, > + [BQ27XXX_REG_INT_TEMP] = 0x28, > + [BQ27XXX_REG_VOLT] = 0x08, > + [BQ27XXX_REG_AI] = 0x14, > + [BQ27XXX_REG_FLAGS] = 0x0a, > + [BQ27XXX_REG_TTE] = 0x16, > + [BQ27XXX_REG_TTF] = 0x18, > + [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, Datasheet states StandbyTimeToEmpty = 0x1C? > + [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, > + [BQ27XXX_REG_NAC] = INVALID_REG_ADDR, missing BQ27XXX_REG_RC. Looks like chip has support for it at address 0x10. > + [BQ27XXX_REG_FCC] = 0x12, > + [BQ27XXX_REG_CYCT] = 0x2a, > + [BQ27XXX_REG_AE] = 0x22, REG_AE is available energy. REG_AP is average power. Obviously two completley different things and cannot be the same register. A quick glance at the datasheet suggests AE does not exist. > + [BQ27XXX_REG_SOC] = 0x2c, > + [BQ27XXX_REG_DCAP] = 0x3c, > + [BQ27XXX_REG_AP] = 0x22, > + BQ27XXX_DM_REG_ROWS, > +}; Please fix indention of }; > > static enum power_supply_property bq27000_props[] = { > POWER_SUPPLY_PROP_STATUS, > @@ -792,6 +813,27 @@ static enum power_supply_property bq34z100_props[] = { > POWER_SUPPLY_PROP_MANUFACTURER, > }; > > +static enum power_supply_property bq78z100_props[] = { > + POWER_SUPPLY_PROP_STATUS, > + POWER_SUPPLY_PROP_PRESENT, > + POWER_SUPPLY_PROP_VOLTAGE_NOW, > + POWER_SUPPLY_PROP_CURRENT_NOW, > + POWER_SUPPLY_PROP_CAPACITY, > + POWER_SUPPLY_PROP_CAPACITY_LEVEL, > + POWER_SUPPLY_PROP_TEMP, > + POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, > + POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, You are not providing data for this? (BQ27XXX_REG_TTECP is not set). Please revisit the list of exposed properties and provide a dump of /sys/class/power_supply/<your_battery>/uevent in your submission. Currently you should see some -ENODATA. > + POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, > + POWER_SUPPLY_PROP_TECHNOLOGY, > + POWER_SUPPLY_PROP_CHARGE_FULL, > + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, > + POWER_SUPPLY_PROP_CYCLE_COUNT, > + POWER_SUPPLY_PROP_ENERGY_NOW, > + POWER_SUPPLY_PROP_POWER_AVG, > + POWER_SUPPLY_PROP_HEALTH, > + POWER_SUPPLY_PROP_MANUFACTURER, > +}; > + > struct bq27xxx_dm_reg { > u8 subclass_id; > u8 offset; > @@ -890,6 +932,7 @@ static struct bq27xxx_dm_reg bq27621_dm_regs[] = { > #define bq27z561_dm_regs 0 > #define bq28z610_dm_regs 0 > #define bq34z100_dm_regs 0 > +#define bq78z100_dm_regs 0 > > #define BQ27XXX_O_ZERO BIT(0) > #define BQ27XXX_O_OTDC BIT(1) /* has OTC/OTD overtemperature flags */ > @@ -948,6 +991,7 @@ static struct { > [BQ28Z610] = BQ27XXX_DATA(bq28z610, 0 , BQ27Z561_O_BITS), > [BQ34Z100] = BQ27XXX_DATA(bq34z100, 0 , BQ27XXX_O_OTDC | BQ27XXX_O_SOC_SI | \ > BQ27XXX_O_HAS_CI | BQ27XXX_O_MUL_CHEM), > + [BQ78Z100] = BQ27XXX_DATA(bq78z100, 0x00000000, BQ27Z561_O_BITS), why 0x00000000 instead of just '0' like in the other entries? > }; > > static DEFINE_MUTEX(bq27xxx_list_lock); > diff --git a/drivers/power/supply/bq27xxx_battery_i2c.c b/drivers/power/supply/bq27xxx_battery_i2c.c > index eb4f4284982f..46f078350fd3 100644 > --- a/drivers/power/supply/bq27xxx_battery_i2c.c > +++ b/drivers/power/supply/bq27xxx_battery_i2c.c > @@ -248,6 +248,7 @@ static const struct i2c_device_id bq27xxx_i2c_id_table[] = { > { "bq27z561", BQ27Z561 }, > { "bq28z610", BQ28Z610 }, > { "bq34z100", BQ34Z100 }, > + { "bq78z100", BQ78Z100 }, > {}, > }; > MODULE_DEVICE_TABLE(i2c, bq27xxx_i2c_id_table); > @@ -284,6 +285,7 @@ static const struct of_device_id bq27xxx_battery_i2c_of_match_table[] = { > { .compatible = "ti,bq27z561" }, > { .compatible = "ti,bq28z610" }, > { .compatible = "ti,bq34z100" }, > + { .compatible = "ti,bq78z100" }, > {}, > }; > MODULE_DEVICE_TABLE(of, bq27xxx_battery_i2c_of_match_table); > diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h > index 111a40d0d3d5..ac17618043b1 100644 > --- a/include/linux/power/bq27xxx_battery.h > +++ b/include/linux/power/bq27xxx_battery.h > @@ -33,6 +33,7 @@ enum bq27xxx_chip { > BQ27Z561, > BQ28Z610, > BQ34Z100, > + BQ78Z100, > }; > > struct bq27xxx_device_info; Thanks, -- Sebastian
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