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| author | Peter Marheine <pmarheine@chromium.org> | 2020-05-05 11:51:33 +1000 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-05-11 06:53:31 +0000 |
| commit | 0564d05b56c993b219707182e5b2c2306234ac7d (patch) | |
| tree | d4dcd170c29ea18634e1e6ac735522921fe22e01 /board/damu | |
| parent | c803796e8f1a80ea9c660355fc7ffba6c091119b (diff) | |
| download | chrome-ec-0564d05b56c993b219707182e5b2c2306234ac7d.tar.gz | |
cometlake-discrete: create a S0->S3 fast path
Latency for powering off VCCIO needs to be lower than we can reliably
achieve using the regular state machine. Add a fast path via a
specialized interrupt to do the S0->S3 transition that should have lower
latency (low enough to satisfy the relevant timing requirements).
BRANCH=None
BUG=b:155672968
TEST=Verified shutdown_s0_rails() runs on S3 interrupt with low latency,
measured timing is now in spec.
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Change-Id: I2753d3490bbefc8f6fccba6cc90e808c969e53b1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2182109
Reviewed-by: Andrew McRae <amcrae@chromium.org>
Diffstat (limited to 'board/damu')
0 files changed, 0 insertions, 0 deletions