Revert "drm/dp_mst: Retrieve extended DPCD caps for topology manager"

This reverts commit ad44c03208.

Currently DRM driver assume the source device caps is higher than the MST device
caps. With this commit, this statement would be broken.

e.g. the source device only support DP1.2 and the mst device support DP1.4.

Signed-off-by: Koba Ko <koba.ko@canonical.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201103034907.72129-1-koba.ko@canonical.com
This commit is contained in:
Koba Ko 2020-11-03 11:49:07 +08:00 • committed by Lyude Paul
commit 2dcab875e7