[PATCH v1 0/8] drm/amdgpu: read back register after written

[David (Ming Qiang) Wu]

Similar to the changes made for VCN v4.0.5, the addition of register
read-back support in other VCN versions is intended to prevent potential
race conditions, even though such issues have not been observed yet.
This change ensures consistency across different VCN variants and helps
avoid similar issues. The overhead introduced is negligible.