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In the interest of making long-term branch maintenance incur as little
technical debt on us as possible, we should not maintain any files on
the branch we are not actually using.
This has the added effect of making it extremely clear when merging CLs
from the main branch when changes have the possibility to affect us.
The follow-on CL adds a convenience script to actually pull updates from
the main branch and generate a CL for the update.
BUG=b:204206272
BRANCH=ish
TEST=make BOARD=arcada_ish && make BOARD=drallion_ish
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Tom Hughes <tomhughes@chromium.org>
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enable a mode where we will switch from AC power to battery power when
the battery is fully charged. then, when the battery is no longer
considred fully charged (95%), switch back to AC and chrage the
battery.
BUG=b:128709632
BRANCH=none
TEST=observed atlas hovers between 95% and 100% battery charge. no
AC current drawn while going from 100% to 95%.
Change-Id: I6e22189fa5be43dc31a5c3b93fda70a4fe5958a1
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1496755
Commit-Ready: Caveh Jalali <caveh@google.com>
Tested-by: caveh jalali <caveh@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
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we normally try to find out a few things about a battery (like charge
level) before actaully applying charging power to it. when the
battery is completely discharged, the controller on the battery can't
respond as it is not self-powered. so, we have to avoid all
operations that depend on the battery responding in the battery
discovery/initialization path.
as long as we report that a battery is present and it is not
responsive, the charger task will enter ST_PRECHARGE which means it'll
provide a "precharge" current to the battery to try to talk to it.
this allows the battery's controller to report battery parameters
allowing our charger task can do the right thing.
BUG=b:79354967
BRANCH=none
TEST=atlas now discovers the discharged battery reliably
Change-Id: I5e5a3abda07508eb791b712fb2f9b9f5fe383e07
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1065492
Commit-Ready: Caveh Jalali <caveh@google.com>
Tested-by: Caveh Jalali <caveh@google.com>
Reviewed-by: Caveh Jalali <caveh@google.com>
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the battery temperature field is only valid after we've actually
managed to read the battery temperatore parameter. so, if the temp
field is marked "BAD", don't even look at it.
this addresses a case where we were removing charge current during the
precharge phase - basically removing charge current from a battery
that we're trying to power so we can talk to its I2C controller.
BUG=b:79354967
BRANCH=none
TEST=instrumented code to verify we don't request 0 amps in ST_PRECHARGE
Change-Id: I3b40903506fa949c14ecaf577f134f31cfcf8fb7
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1066789
Commit-Ready: Caveh Jalali <caveh@google.com>
Tested-by: Caveh Jalali <caveh@google.com>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
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This is based on the initial code from Caveh here:
https://chromium-review.googlesource.com/959861
Most things are functional, with some workarounds for P0 boards.
The type-c hotplug is not working in this commit, the HPD will be
run from the tcpm in the next board build. For now we might be
able to get it working on P0 with some more tweaking..
The other known issue is that the battery takes ~2 seconds to
come back online after a cutoff (the auto-power-on timeout is
one second so the board will not power on like it should) and
sometimes the battery is not responding properly on i2c and it
requires an EC reset.
BUG=b:75070158
BRANCH=none
TEST=tested on P0 boards
Change-Id: I438cb93b78d6f501426842d6cbe3d6a994563358
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/982498
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Caveh Jalali <caveh@google.com>
Reviewed-by: Caveh Jalali <caveh@google.com>
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