diff options
| author | abdoulaye berthe <abdoulaye.berthe@amd.com> | 2019-09-18 11:57:47 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-13 15:29:43 -0500 |
| commit | 903e859b72957985c60de593f364e33639964829 (patch) | |
| tree | 021e753ea4f39dab37a5d92ce8b46c1ac2fc2901 /drivers/gpu/drm/amd/display/amdgpu_dm | |
| parent | 8e5100a575433cc185a2e224280fbd873b6692dd (diff) | |
drm/amd/display: check for dp rev before reading lttpr regs
[Why]
LTTPR was introduced after DP1.2. Reading LTTPR registers 0xFXXXX
on some DP 1.2 display is causing an unexpected behavior.
[How]
Make sure that we don't read any lttpr registers on 1.2 displays.
Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm')
0 files changed, 0 insertions, 0 deletions