| commit | 903e859b72957985c60de593f364e33639964829 | [log] [tgz] |
|---|---|---|
| author | abdoulaye berthe <abdoulaye.berthe@amd.com> | Wed Sep 18 11:57:47 2019 -0400 |
| committer | Alex Deucher <alexander.deucher@amd.com> | Wed Nov 13 15:29:43 2019 -0500 |
| tree | 021e753ea4f39dab37a5d92ce8b46c1ac2fc2901 | |
| 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>