forked from luck/tmp_suning_uos_patched
power: supply: lego_ev3_battery: fix Vce offset
This fixes the value that accounts for the Vce of a transistor in the LEGO MINDSTORMS EV3 power supply driver. The old value (200mV) was the max value from the data sheet. After testing, the actual value has been found to be 50mV. By using 50mV we get a more accurate voltage indication. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
This commit is contained in:
parent
6e92cecb1e
commit
9c7272412b
|
@ -52,7 +52,7 @@ static int lego_ev3_battery_get_property(struct power_supply *psy,
|
||||||
return ret;
|
return ret;
|
||||||
|
|
||||||
val->intval *= 2000;
|
val->intval *= 2000;
|
||||||
val->intval += 200000;
|
val->intval += 50000;
|
||||||
|
|
||||||
/* plus adjust for shunt resistor drop */
|
/* plus adjust for shunt resistor drop */
|
||||||
ret = iio_read_channel_processed(batt->iio_i, &val2);
|
ret = iio_read_channel_processed(batt->iio_i, &val2);
|
||||||
|
|
Loading…
Reference in New Issue
Block a user