diff options
| author |   Hersen Wu <hersenxs.wu@amd.com> | 2018-07-16 11:21:12 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-07-17 15:13:09 -0500 |
| commit | 263318eea710a6dd9770f9b4f570889b5dfd0d39 (patch) | |
| tree | a5609eb0264be1c3c9e62919401f852ab2e21543 /drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c | |
| parent | drm/amdgpu: Make sure IB tests flushed after IP resume (diff) | |
| download | linux-dev-263318eea710a6dd9770f9b4f570889b5dfd0d39.tar.xz linux-dev-263318eea710a6dd9770f9b4f570889b5dfd0d39.zip | |
drm/amd/display: Fix DP HBR2 Eye Diagram Pattern on Carrizo
[why] dp hbr2 eye diagram pattern for raven asic is not stabled.
workaround is to use tp4 pattern. But this should not be
applied to asic before raven.
[how] add new bool varilable in asic caps. for raven asic,
use the workaround. for carrizo, vega, do not use workaround.
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c index df5cb2d1d164..34dac84066a0 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c @@ -1027,6 +1027,8 @@ static bool construct( dc->caps.max_slave_planes = 1; dc->caps.is_apu = true; dc->caps.post_blend_color_processing = false; + /* Raven DP PHY HBR2 eye diagram pattern is not stable. Use TP4 */ + dc->caps.force_dp_tps4_for_cp2520 = true; if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV) dc->debug = debug_defaults_drv; |