diff options
| author | Todd Broch <tbroch@chromium.org> | 2015-03-30 15:39:00 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-04-13 17:38:11 +0000 |
| commit | 0016de8250807601f46fb3736f93518155eca95f (patch) | |
| tree | 6294c39ce7241c9caeea8445381365c15a27678a /chip/stm32/usb-stream.c | |
| parent | 0f6335451dba025328fd0a6ad3da79d57405135b (diff) | |
| download | chrome-ec-0016de8250807601f46fb3736f93518155eca95f.tar.gz | |
plankton: Initialize re-driver.
Host's single lane training algorithm in kernel (intel_dp_is_reversed)
appears to confuse the re-driver's auto training algorithm. If
however its manually configured the algorithm succeeds.
NOTE, this does present risk on the DPsrc (re-driver) to DPsink
(external monitor) side as voltage levels & pre-emphasis will NOT be
adjusted.
This may be acceptable in the short-term while determining if
additional functionality needs to be added on host side to account for
re-driver's presence
Signed-off-by: Todd Broch <tbroch@chromium.org>
BRANCH=none
BUG=chrome-os-partner:35153
TEST=manual, plankton drives 4K monitor in both polarities
Change-Id: I83ea80c44d36ad1afad56528c80ec5b8a138b5be
Reviewed-on: https://chromium-review.googlesource.com/263138
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Todd Broch <tbroch@chromium.org>
Tested-by: Todd Broch <tbroch@chromium.org>
Diffstat (limited to 'chip/stm32/usb-stream.c')
0 files changed, 0 insertions, 0 deletions