diff options
| author | Edward Hill <ecgh@chromium.org> | 2021-01-21 16:11:40 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-02-03 01:09:59 +0000 |
| commit | efa46d4f82c9f59acad3d49e1a2901952fa1a75a (patch) | |
| tree | e3c6a8783881e601c8ec0ea7d8b025c16c2e9935 | |
| parent | 17a0dad5b842b2aaa1a242df7fbc577862c0e774 (diff) | |
| download | chrome-ec-efa46d4f82c9f59acad3d49e1a2901952fa1a75a.tar.gz | |
grunt: Disable SBU on hibernate
If CCD not active, set port 0 SBU_EN=0 to avoid power leakage during
hibernation.
BUG=b:175674973
BRANCH=grunt
TEST=no power leakage during hibernate
Signed-off-by: Edward Hill <ecgh@chromium.org>
Change-Id: I05b8079aebc1282b9bb955bbf153c0fc2399bee1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2668063
Tested-by: Peichao Wang <pwang12@lenovo.corp-partner.google.com>
Reviewed-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-by: Peichao Wang <pwang12@lenovo.corp-partner.google.com>
| -rw-r--r-- | baseboard/grunt/baseboard.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/baseboard/grunt/baseboard.c b/baseboard/grunt/baseboard.c index d592ce69ca..d023ce141f 100644 --- a/baseboard/grunt/baseboard.c +++ b/baseboard/grunt/baseboard.c @@ -803,4 +803,11 @@ void board_hibernate(void) */ ppc_vbus_source_enable(0, 0); ppc_vbus_sink_enable(0, 1); + + /* + * If CCD not active, set port 0 SBU_EN=0 to avoid power leakage during + * hibernation (b/175674973). + */ + if (gpio_get_level(GPIO_CCD_MODE_ODL)) + ppc_set_sbu(0, 0); } |