power: supply: max17042_battery: Add support for the CHARGE_FULL_DESIGN property

The info is there, lets export it as a property.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index 37e987f55833ecf71f62b75435d25ab6ed9a77df..3838f09e013cac0bed8eb86d099755c62d075800 100644 (file)
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -87,6 +87,7 @@ static enum power_supply_property max17042_battery_props[] = {
        POWER_SUPPLY_PROP_VOLTAGE_AVG,
        POWER_SUPPLY_PROP_VOLTAGE_OCV,
        POWER_SUPPLY_PROP_CAPACITY,
+       POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
        POWER_SUPPLY_PROP_CHARGE_FULL,
        POWER_SUPPLY_PROP_CHARGE_COUNTER,
        POWER_SUPPLY_PROP_TEMP,
@@ -305,6 +306,15 @@ static int max17042_get_property(struct power_supply *psy,
 
                val->intval = data >> 8;
                break;
+       case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+               ret = regmap_read(map, MAX17042_DesignCap, &data);
+               if (ret < 0)
+                       return ret;
+
+               data64 = data * 5000000ll;
+               do_div(data64, chip->pdata->r_sns);
+               val->intval = data64;
+               break;
        case POWER_SUPPLY_PROP_CHARGE_FULL:
                ret = regmap_read(map, MAX17042_FullCAP, &data);
                if (ret < 0)