tree bfdc641692207eb0dc77df3334e179123ed55111
parent ff0bd441bdfbfa09d05fdba9829a0401a46635c1
author Alex Deucher <alexander.deucher@amd.com> 1462998063 -0400
committer Alex Deucher <alexander.deucher@amd.com> 1463079829 -0400

drm/amdgpu: fix DP mode validation

Switch the order of the loops to walk the rates on the top
so we exhaust all DP 1.1 rate/lane combinations before trying
DP 1.2 rate/lane combos.

This avoids selecting rates that are supported by the monitor,
but not the connector leading to valid modes getting rejected.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=95206

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org