diff options
| author | Nick Sanders <nsanders@chromium.org> | 2017-03-23 19:10:35 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-04-24 22:51:48 -0700 |
| commit | 5eaf807dcdbc023d2d2cf12d6d150ca7b7b2fb9f (patch) | |
| tree | 00f015bad67e2ae56dd231728e541b1edf9f8815 /board/tigertail | |
| parent | 64d79d609bb2bd66a05bb96b2714543bed667c67 (diff) | |
| download | chrome-ec-5eaf807dcdbc023d2d2cf12d6d150ca7b7b2fb9f.tar.gz | |
tigertail: fix USB timing
Add some disconnect time between mux selections.
This ensures that USB VBUS will fall and a USB
disconenct will happen.
BRANCH=None
BUG=b:35849284
TEST=ran on tigertail
Change-Id: I6cdbf8ce908f20213c7f8d1f4437ffe2b624be02
Reviewed-on: https://chromium-review.googlesource.com/459219
Commit-Ready: Nick Sanders <nsanders@chromium.org>
Tested-by: Nick Sanders <nsanders@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'board/tigertail')
| -rw-r--r-- | board/tigertail/board.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/board/tigertail/board.c b/board/tigertail/board.c index 7db4618fcd..058e15c4a8 100644 --- a/board/tigertail/board.c +++ b/board/tigertail/board.c @@ -310,10 +310,16 @@ void set_mux_state(int state) gpio_set_level(GPIO_SEL_RELAY_A, 0); gpio_set_level(GPIO_SEL_RELAY_B, 0); - /* Reconnect in the requested direction. */ + /* Let USB disconnect. */ + msleep(100); + + /* Reconnect VBUS/CC in the requested direction. */ gpio_set_level(GPIO_SEL_RELAY_A, !dir && enabled); gpio_set_level(GPIO_SEL_RELAY_B, dir && enabled); + /* Reconnect data. */ + msleep(10); + gpio_set_level(GPIO_USB_C_SEL_B, dir); gpio_set_level(GPIO_USB_C_OE_N, !enabled); |