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power: supply: bq27xxx: fix sign of current_now for newer ICs

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[ Upstream commit b67fdcb709 ]

Commit cd060b4d08 ("power: supply: bq27xxx: fix polarity of current_now")
changed the sign of current_now for all bq27xxx variants, but on BQ28Z610
I'm now seeing negated values *with* that patch.

The GTA04/Openmoko device that was used for testing uses a BQ27000 or
BQ27010 IC, so I assume only the BQ27XXX_O_ZERO code path was incorrect.
Revert the behaviour for newer ICs.

Fixes: cd060b4d08 "power: supply: bq27xxx: fix polarity of current_now"
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Stable-dep-of: 35092c5819 ("power: supply: bq27xxx: Add cache parameter to bq27xxx_battery_current_and_status()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matthias Schiffer 2021-03-03 10:54:18 +01:00 • committed by Greg Kroah-Hartman
commit 659094e405
1 changed files with 1 additions and 1 deletions
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drivers/power/supply/bq27xxx_battery.c
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@ -1781,7 +1781,7 @@ static int bq27xxx_battery_current(struct bq27xxx_device_info *di,
val->intval = curr * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
} else {
/* Other gauges return signed value */
val->intval = -(int)((s16)curr) * 1000;
val->intval = (int)((s16)curr) * 1000;
}
return 0;