diff options
| author | Alec Berg <alecaberg@chromium.org> | 2015-04-08 09:42:43 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-04-11 04:32:33 +0000 |
| commit | f224ae87bd6967533d53278541c57414d61d26cf (patch) | |
| tree | 188d650825dee59070b5b917be2f40ac4867b9e9 /board/samus_pd/usb_pd_policy.c | |
| parent | 007fadda59dc617976eb87bcc325af7453d11a53 (diff) | |
| download | chrome-ec-f224ae87bd6967533d53278541c57414d61d26cf.tar.gz | |
pd: samus: support vconn swap and enable on Samus when in S0/S3
Support VCONN swap on samus and always accept VCONN swap when in
S0 or S3. In S5, we can't provide VCONN, so reject VCONN swap
requests.
BUG=chrome-os-partner:34978
BRANCH=samus
TEST=load on two samus' and use "pd 1 swap vconn" to swap which
side is source vconn. also run in S5 and verify swap request is
rejected.
Change-Id: I04be8d1d910a2d6c5ad8b27a790f8e33121c86ee
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/264856
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'board/samus_pd/usb_pd_policy.c')
| -rw-r--r-- | board/samus_pd/usb_pd_policy.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/board/samus_pd/usb_pd_policy.c b/board/samus_pd/usb_pd_policy.c index 85e3244527..7e1302b018 100644 --- a/board/samus_pd/usb_pd_policy.c +++ b/board/samus_pd/usb_pd_policy.c @@ -151,6 +151,12 @@ int pd_check_data_swap(int port, int data_role) return (data_role == PD_ROLE_UFP) ? 1 : 0; } +int pd_check_vconn_swap(int port) +{ + /* in S5, do not allow vconn swap since pp5000 rail is off */ + return gpio_get_level(GPIO_PCH_SLP_S5_L); +} + void pd_execute_data_swap(int port, int data_role) { /* Open USB switches when taking UFP role */ |