This is a note to let you know that I've just added the patch titled
power: supply: generic-adc-battery: fix unit scaling
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
power-supply-generic-adc-battery-fix-unit-scaling.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 55b82df54c702158935c1d3ba50ab2cfc9365f94
Author: Sebastian Reichel <sre@xxxxxxxxxx>
Date: Fri Mar 17 23:56:57 2023 +0100
power: supply: generic-adc-battery: fix unit scaling
[ Upstream commit 44263f50065969f2344808388bd589740f026167 ]
power-supply properties are reported in µV, µA and µW.
The IIO API provides mV, mA, mW, so the values need to
be multiplied by 1000.
Fixes: e60fea794e6e ("power: battery: Generic battery driver using IIO")
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Reviewed-by: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/power/supply/generic-adc-battery.c b/drivers/power/supply/generic-adc-battery.c
index 97b0e873e87d2..c2d6378bb897d 100644
--- a/drivers/power/supply/generic-adc-battery.c
+++ b/drivers/power/supply/generic-adc-battery.c
@@ -138,6 +138,9 @@ static int read_channel(struct gab *adc_bat, enum power_supply_property psp,
result);
if (ret < 0)
pr_err("read channel error\n");
+ else
+ *result *= 1000;
+
return ret;
}
