From 21b01cc879cc3ecef013b3576db2925adfd881aa Mon Sep 17 00:00:00 2001 From: Geordan Neukum Date: Mon, 30 Mar 2020 01:33:55 -0400 Subject: [PATCH] power: supply: max17042_battery: Add support for the TTE_NOW prop The max170{42,47,50,55} family of fuel gauges all provide time-to-empty estimation. As such, let's export this as a property. Signed-off-by: Geordan Neukum Signed-off-by: Sebastian Reichel --- drivers/power/supply/max17042_battery.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c index 69ec4295d55d..f284547913d6 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_SCOPE, POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CURRENT_AVG, + POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, }; static int max17042_get_temperature(struct max17042_chip *chip, int *temp) @@ -411,6 +412,13 @@ static int max17042_get_property(struct power_supply *psy, return -EINVAL; } break; + case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: + ret = regmap_read(map, MAX17042_TTE, &data); + if (ret < 0) + return ret; + + val->intval = data * 5625 / 1000; + break; default: return -EINVAL; }