drm/amd/display: Enable DM for DCN 4.2.1

[Why & How]
Add DM IP block to amdgpu_discovery

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Matthew Stewart <Matthew.Stewart2@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Matthew Stewart 2026-05-18 21:14:20 -04:00 • committed by Alex Deucher
commit c2630fdd65