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>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index 37e987f55833..3838f09e013c 100644
--- 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)