Document that POWER_SUPPLY_PROP_CURRENT_NOW really does refer to ADC-sampled
immediate battery charge current I_BAT , since the meaning is not clear with
all the currents which might be measured by charger chips.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
val->intval = 2304000 + ret * 20000;
break;
- case POWER_SUPPLY_PROP_CURRENT_NOW:
+ case POWER_SUPPLY_PROP_CURRENT_NOW: /* I_BAT now */
+ /*
+ * This is ADC-sampled immediate charge current supplied
+ * from charger to battery. The property name is confusing,
+ * for clarification refer to:
+ * Documentation/ABI/testing/sysfs-class-power
+ * /sys/class/power_supply/<supply_name>/current_now
+ */
ret = bq25890_field_read(bq, F_ICHGR); /* read measured value */
if (ret < 0)
return ret;