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| author | Diana Z <dzigterman@chromium.org> | 2020-09-03 16:53:14 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-09-14 19:32:18 +0000 |
| commit | b23f483631d9e3fe3bb2b49356462e657aaf2afe (patch) | |
| tree | bb1060b15057b9e397af416da34d37cc4357ece6 /board/drawcia | |
| parent | 456fef58c6f06ed7ed6b2334c2b1e9f4913dc49b (diff) | |
| download | chrome-ec-b23f483631d9e3fe3bb2b49356462e657aaf2afe.tar.gz | |
SM5803: Enable hibernate function for z-state
Enable SM5803 hibernation and restore registers after booting back from
z-state.
BRANCH=None
BUG=b:166648029
TEST=on drawlat, z-state power usage is reduced and booting after
z-state the charger chips can sink and source as expected
Signed-off-by: Diana Z <dzigterman@chromium.org>
Change-Id: I6e9f9f29a184fa6177e589b3b7810f51a1b3345b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2393225
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'board/drawcia')
| -rw-r--r-- | board/drawcia/board.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/board/drawcia/board.c b/board/drawcia/board.c index 4a012aafa8..3adcbb819a 100644 --- a/board/drawcia/board.c +++ b/board/drawcia/board.c @@ -424,6 +424,17 @@ void board_init(void) } DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); +void board_hibernate(void) +{ + /* + * Put all charger ICs present into low power mode before entering + * z-state. + */ + sm5803_hibernate(CHARGER_PRIMARY); + if (board_get_charger_chip_count() > 1) + sm5803_hibernate(CHARGER_SECONDARY); +} + __override void board_ocpc_init(struct ocpc_data *ocpc) { /* There's no provision to measure Isys */ |