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| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2015-10-19 11:13:50 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2015-10-27 13:19:51 -0700 |
| commit | 2bd7dce32eed716b850c370f79717ad47da17c01 (patch) | |
| tree | cdbb8d838c14d8e49ca159731e0f12a051c64235 /util | |
| parent | cb4a76e8022c73fb0a0b50700912d86f41ea3dbb (diff) | |
| download | chrome-ec-2bd7dce32eed716b850c370f79717ad47da17c01.tar.gz | |
charger: Add LIMIT_POWER charger param for low bat + weak charger
Add support for two new configs to specify critical energy battery
percentage and critical external charger power. When we are under both
thresholds, set the LIMIT_POWER charger parameter to inform the AP that it
should conserve power to avoid brownout, and consider jumping to EC RW
to negotiate PD.
In addition, modify the existing CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON
to allow power-up regardless of power level if a 15W+ charger is
attached, since there is a reasonable chance it may speak PD and provide
sufficient power to boot the AP.
BUG=chromium:537269
TEST=Manual on Glados. Set CHG_MW thresh to 20000, BAT_PCT to 50. Verify
that LIMIT_POWER charger param is set until Zinger negotiates to 20V. Also
veify that system can boot with Donette.
BRANCH=None
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: Ic963c82fea4ad10e8a5d7e476c5ce3e5ae525dad
Reviewed-on: https://chromium-review.googlesource.com/306774
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Diffstat (limited to 'util')
| -rw-r--r-- | util/ectool.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/util/ectool.c b/util/ectool.c index 1c409846e0..0b2f561211 100644 --- a/util/ectool.c +++ b/util/ectool.c @@ -5136,6 +5136,7 @@ static const char * const base_params[] = { "chg_input_current", "chg_status", "chg_option", + "limit_power", }; BUILD_ASSERT(ARRAY_SIZE(base_params) == CS_NUM_BASE_PARAMS); |