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UPSTREAM: google/eve: Disable Deep S3 in AC mode

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In order to support a standard "docked" config disable Deep S3 when
connected to AC power.  This allows USB devices to wake the device
from suspend if it is externally powered, but still retains the
lower power state when running on battery.

BUG=b:36723679
BRANCH=none
TEST=manual testing on Eve for USB wake behavior:
1) when suspended on battery USB keyboard does not wake
2) when suspended while connected to AC a USB keyboard does wake
3) if suspended with AC, and then AC is removed, system does not
wake with USB keyboard
4) if suspended without AC, and then AC is added, system does not
wake with USB keyboard (it cannot get enabled without waking and
re-suspending)

Change-Id: I522b50c16fa0c4c3ba3731075fe29d3e799935d4
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 73ff0fbd2e
Original-Change-Id: I670e39d42cdb5b80612206da899be82ef3b2cbf2
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://review.coreboot.org/19240
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/480098
This commit is contained in:
Duncan Laurie 2017-04-10 21:07:06 -07:00 • committed by chrome-bot
parent 955dde85ce
commit 217915f94f
1 changed files with 1 additions and 1 deletions
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2
src/mainboard/google/eve/devicetree.cb
View file

@ -1,7 +1,7 @@
chip soc/intel/skylake
# Enable deep Sx states
register "deep_s3_enable_ac" = "1"
register "deep_s3_enable_ac" = "0"
register "deep_s3_enable_dc" = "1"
register "deep_s5_enable_ac" = "1"
register "deep_s5_enable_dc" = "1"