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| author | Eric Yang <Eric.Yang2@amd.com> | 2020-05-29 17:13:57 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-04-18 16:28:53 -0400 |
| commit | 499e4b1c722e0e2ca40c56342b766e95f6c31f4a (patch) | |
| tree | 5d9ba4eb32abe9f4dd57c90abab87a9944e44d20 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | |
| parent | bddb55ccbdc20dd7fd526c8dfb13f695637bf7b1 (diff) | |
drm/amd/display: add mechanism to skip DCN init
[Why]
If optimized init is done in FW. DCN init can be skipped in driver. This
need to be communicated between driver and fw and maintain backwards
compatibility.
[How]
Use DMUB scratch 0 bit 2 to indicate optimized init done in fw and
use DMUB scatch 4 bit 0 to indicate drive supports the optimized flow
so FW will perform it.
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c')
0 files changed, 0 insertions, 0 deletions