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| 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/dc/inc/hw/clk_mgr.h | |
| parent | drm/amd/display: initialize lttpr (diff) | |
| download | linux-rng-903e859b72957985c60de593f364e33639964829.tar.xz linux-rng-903e859b72957985c60de593f364e33639964829.zip | |
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/dc/inc/hw/clk_mgr.h')
0 files changed, 0 insertions, 0 deletions