An ADC conversion requires ~10 msec. However, if the bq25703 is in low
power mode, then this conversion time jumps to ~55 msec. This CL adds
a method to exit/enter low power mode and adds a call to exit low
power mode prior to starting the ADC conversion. Following the
conversion, low power mode is entered again.
BRANCH=none
BUG=b:79771760
TEST=Connected AC power and verified that EC console error message
'Could not read input current limit ADC' is no longer shown. In
addition, had instrumented this the ADC conversion with GPIO signals
and verified the conversion times before/after exiting low power mode.
Change-Id: I13f36e6261e219adbc8624f71bf7916bbc631b10
Signed-off-by: Scott Collyer <scollyer@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1069768
Commit-Ready: Scott Collyer <scollyer@chromium.org>
Tested-by: Scott Collyer <scollyer@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
bbc34f225e