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| author | Nicholas Kazlauskas <[email protected]> | 2021-12-16 16:19:30 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2022-01-07 22:22:01 +0000 |
| commit | 19e43f1276b38716ad558c2018535e475cb9f3cf (patch) | |
| tree | e7911478da8c7ca3180d58f57828f12b949a2da5 /drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | |
| parent | drm/amd/display: introduce mpo detection flags (diff) | |
| download | kernel-19e43f1276b38716ad558c2018535e475cb9f3cf.tar.gz kernel-19e43f1276b38716ad558c2018535e475cb9f3cf.zip | |
drm/amd/display: Add version check before using DP alt query interface
[Why]
To maintain compatibility with firmware older than 4.0.11.
Those firmware may have interrmittent hangs with RDCSPIPE or the PHY,
but we shouldn't regress their previous behavior.
[How]
Use the new path if firmware is development or 4.0.11 or newer. Use the
legacy path otherwise.
Fixes: 41f91315b5be5a ("drm/amd/display: Query DMCUB for dp alt status")
Tested-by: Daniel Wheeler <[email protected]>
Reviewed-by: Hansen Dsouza <[email protected]>
Acked-by: Rodrigo Siqueira <[email protected]>
Signed-off-by: Nicholas Kazlauskas <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c')
0 files changed, 0 insertions, 0 deletions