The original dp driver supports only fast link training and a
special drive setting is used for the link training sequence.
This might not be accepted by all panels. The better way is to
go through full link training sequence to negotiate for a best
drive setting.
With the change, dp driver will try fast link training first,
this is same as before. If it fails in fast link training, will
try full link training.
BUG=chrome-os-partner:32129
TEST=all panels on blaze/big devices work fine.
Original-Change-Id: I6f3402c4c5993a156c965c7f52b011d336a2946f
Original-Signed-off-by: Neil Chen <neilc@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/219543
Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
(cherry picked from commit 24966517d4)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: I3e7e7e749e5c8a9f07ac6132859fcad6fc96c39c
Reviewed-on: http://review.coreboot.org/9247
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
8c440a6bef