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| author | Daisuke Nojiri <dnojiri@chromium.org> | 2019-01-15 10:09:34 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-01-16 01:46:51 -0800 |
| commit | e72e82db71624a1ef02725d384ae06a138585a01 (patch) | |
| tree | 452af41f6fba41b4e20ef2587424f6a908a8c9e0 /common | |
| parent | 5622aaf0c1161657819f6bfe0365077717fbc77e (diff) | |
| download | chrome-ec-e72e82db71624a1ef02725d384ae06a138585a01.tar.gz | |
USB-PD: Disable Vconn on SRC_DISCONNECT
Currently, source only devices do not turn off Vconn when a partner
is disconnected. This causes the polarity detection to be disabled.
This patch turns off Vconn on SRC_DISCONNECT for
!CONFIG_USB_PD_DUAL_ROLE boards.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
BUG=b/122861749
BRANCH=Kalista
TEST=Plug in an ethernet dongle via a USB-C-to-A adapter. Replug it
upside down and verify Ethernet is turned on on both sides.
Change-Id: I4ac303f2121d9e4114ce7097db304e4f65f27ae0
Reviewed-on: https://chromium-review.googlesource.com/1412228
Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Zhuohao Lee <zhuohao@chromium.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/usb_pd_protocol.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/common/usb_pd_protocol.c b/common/usb_pd_protocol.c index 72c88c10d4..542d388a3e 100644 --- a/common/usb_pd_protocol.c +++ b/common/usb_pd_protocol.c @@ -663,7 +663,10 @@ static inline void set_state(int port, enum pd_states next_state) 0); #else /* CONFIG_USB_PD_DUAL_ROLE */ if (next_state == PD_STATE_SRC_DISCONNECTED) { -#endif +#ifdef CONFIG_USBC_VCONN + set_vconn(port, 0); +#endif /* CONFIG_USBC_VCONN */ +#endif /* !CONFIG_USB_PD_DUAL_ROLE */ /* * If we are source, make sure VBUS is off and * if PD REV3.0, restore RP. |