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power: supply: max1720x: add charge full property

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Charge full holds the calculated full capacity of the cell based on all
inputs from the ModelGauge m5 algorithm including empty compensation. A
new full-capacity value is calculated continuously as application
conditions change.

Signed-off-by: Dimitri Fedrau <dimitri.fedrau@liebherr.com>
Link: https://lore.kernel.org/r/20241203-max1720x-charge-full-prop-v1-1-b02776b43f17@liebherr.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Dimitri Fedrau
2024-12-03 09:04:36 +01:00
committed by Sebastian Reichel
parent 1c44832979
commit dc90aa3a72
1 changed files with 6 additions and 0 deletions
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6
drivers/power/supply/max1720x_battery.c
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@@ -29,6 +29,7 @@
#define MAX172XX_TEMP 0x08 /* Temperature */
#define MAX172XX_CURRENT 0x0A /* Actual current */
#define MAX172XX_AVG_CURRENT 0x0B /* Average current */
#define MAX172XX_FULL_CAP 0x10 /* Calculated full capacity */
#define MAX172XX_TTE 0x11 /* Time to empty */
#define MAX172XX_AVG_TA 0x16 /* Average temperature */
#define MAX172XX_CYCLES 0x17
@@ -250,6 +251,7 @@ static const enum power_supply_property max1720x_battery_props[] = {
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
};
@@ -362,6 +364,10 @@ static int max1720x_battery_get_property(struct power_supply *psy,
ret = regmap_read(info->regmap, MAX172XX_AVG_CURRENT, &reg_val);
val->intval = max172xx_current_to_voltage(reg_val) / info->rsense;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
ret = regmap_read(info->regmap, MAX172XX_FULL_CAP, &reg_val);
val->intval = max172xx_capacity_to_ps(reg_val);
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
ret = regmap_read(info->regmap, MAX172XX_DEV_NAME, &reg_val);
reg_val = FIELD_GET(MAX172XX_DEV_NAME_TYPE_MASK, reg_val);