diff options
| author | Keith Short <keithshort@chromium.org> | 2021-05-13 16:27:39 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-06-03 18:53:43 +0000 |
| commit | 060d6f85c02278660358116a75a0f991cc47b12b (patch) | |
| tree | 4ac9bffcbca1bef6d058ad98400ac0faca6285f4 /common/usb_pd_protocol.c | |
| parent | 00ab08d7746028008bbc261777a1ae818cf9668e (diff) | |
| download | chrome-ec-060d6f85c02278660358116a75a0f991cc47b12b.tar.gz | |
tcpmv2: Don't enable USB mode until PD state resolved
Don't enable USB superspeed signals until the PD capability is known.
This fixes an issue where platforms that enable the virtual USB mux
violate the tSenderResponse timeout when the attached SRC sends the
Source Capabilities message.
BUG=b:187796705
BRANCH=none
TEST=Volteer - connect PD charger, obsserve no hard reset
TEST=Connect non-PD USB device, verify USB mode is enabled
TEST=Connect USB+DP monitor, verify DP mode entry and USB mode enabled
TEST=Connect USB4 dock, verify USB4 entry
TEST=faft_pd test suite passes on Voxel
Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: I4be08874178d1e225cf41939b9626a81b0da0524
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2895424
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Tested-by: caveh jalali <caveh@chromium.org>
Diffstat (limited to 'common/usb_pd_protocol.c')
| -rw-r--r-- | common/usb_pd_protocol.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/common/usb_pd_protocol.c b/common/usb_pd_protocol.c index 13e6c7842f..6a72d8e62a 100644 --- a/common/usb_pd_protocol.c +++ b/common/usb_pd_protocol.c @@ -399,6 +399,15 @@ bool pd_capable(int port) } /* + * For TCPMv1, this routine always returns false so that the USB3 signals + * are connected without delay when the initial connection is UFP. + */ +bool pd_waiting_on_partner_src_caps(int port) +{ + return false; +} + +/* * Return true if partner port is capable of communication over USB data * lines. */ |