bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 14:53:58 -04:00
Code Issues Packages Projects Releases Wiki Activity

power: supply: max17042: report time to full (max17055 & max77759)

Browse Source 
Report the remaining time to full as calculated by the firmware for
devices that implement this.
Similar to time to empty, the reported value is only meaningful when
charging, i.e. if it is != U16_MAX.

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260302-max77759-fg-v3-11-3c5f01dbda23@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
André Draszik
2026-03-02 13:32:10 +00:00
committed by Sebastian Reichel
parent 83a86e27c3
commit c10b68e331
1 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/power/supply/max17042_battery.c
View File

@@ -89,6 +89,7 @@ static enum power_supply_property max17042_battery_props[] = {
POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_SCOPE, POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
// these two have to be at the end on the list // these two have to be at the end on the list
POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG, POWER_SUPPLY_PROP_CURRENT_AVG,
@@ -443,6 +444,21 @@ static int max17042_get_property(struct power_supply *psy,
if (data == U16_MAX) if (data == U16_MAX)
return -ENODATA; return -ENODATA;
val->intval = data * 5625 / 1000;
break;
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
if (chip->chip_type != MAXIM_DEVICE_TYPE_MAX17055 &&
chip->chip_type != MAXIM_DEVICE_TYPE_MAX77759)
return -EINVAL;
ret = regmap_read(map, MAX17055_TTF, &data);
if (ret < 0)
return ret;
/* when discharging, the value is not meaningful */
if (data == U16_MAX)
return -ENODATA;
val->intval = data * 5625 / 1000; val->intval = data * 5625 / 1000;
break; break;
default: default: