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author | Diana Z <dzigterman@chromium.org> | 2018-06-26 12:38:46 -0600 |
---|---|---|
committer | chrome-bot <chrome-bot@chromium.org> | 2018-06-26 23:44:12 -0700 |
commit | a545d60fe2ac73b5039eaae3c205317d15c03a5a (patch) | |
tree | 359d4871cfc5b29cbcd7556ce9a7a7c6b412d0b5 | |
parent | a4f1658b909e5ed64debe1da2ecc5d64e178c6f8 (diff) | |
download | chrome-ec-a545d60fe2ac73b5039eaae3c205317d15c03a5a.tar.gz |
octopus npcx: ensure EC enters deep sleep when AP in S0
This change enables EC deep sleep in S0, which should give a power
savings of about 20 mW when the system is idle.
BRANCH=none
BUG=b:78225493
TEST=with yorp: ran "ectool version" 50k times with feature enabled
and saw no errors, plugged board into keyboard, trackpad, and
screen to ensure no apparent lag or keystroke loss occurred, ran
faft_ec suite and verified pass/fail rate was the same as without
feature
Change-Id: Ib943ea098acf47d989f6b0d229c72b4982ffc4cb
Signed-off-by: Diana Z <dzigterman@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1115466
Reviewed-by: Jett Rink <jettrink@chromium.org>
-rw-r--r-- | baseboard/octopus/baseboard.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/baseboard/octopus/baseboard.h b/baseboard/octopus/baseboard.h index e43198a1af..e6e288c35a 100644 --- a/baseboard/octopus/baseboard.h +++ b/baseboard/octopus/baseboard.h @@ -41,6 +41,9 @@ /* EC variant determines USB-C variant */ #define VARIANT_OCTOPUS_USBC_STANDALONE_TCPCS + + /* Allow the EC to enter deep sleep in S0 */ + #define CONFIG_LOW_POWER_S0 #elif defined(VARIANT_OCTOPUS_EC_ITE8320) /* Flash clock must be > (50Mhz / 2) */ #define CONFIG_IT83XX_FLASH_CLOCK_48MHZ |