power: supply: axp288_fuel_gauge: Get iio-channels once during boot

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Get iio-channels once during boot, delaying the probe if the axp288_adc
drivers has not loaded yet, instead of getting them on demand each time
we need them.

This fixes the following errors in dmesg:

axp288_fuel_gauge axp288_fuel_gauge: ADC charge current read failed:-19

Which were caused by the ondemand iio-channel read code not finding the
channel when the axp288_adc driver had not loaded yet.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

...

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Hans de Goede 2017-12-26 13:59:10 +01:00 • committed by Sebastian Reichel

parent 165c235774

commit 331645e165

1 changed files with 67 additions and 43 deletions

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drivers/power/supply/axp288_fuel_gauge.c

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