drivers/gpu/drm/amd/display/dc/hpo/dcn42

AMD DCN 4.2 HPO Display Engine Block

Internal building-block code for the High Performance Output (HPO) component of AMD's DCN 4.2 display controller, used by recent Radeon and Ryzen integrated GPUs to drive high-bandwidth outputs such as DisplayPort 2.x. It is part of the larger amdgpu display stack rather than a standalone hardware driver.

not-a-driver conf=1.00 deploy=none replacement=none subsystem=gpu category=not-a-driver

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recommendation

This is not actually a driver directory; it is a subcomponent of AMD's Display Core (DC) library inside the amdgpu graphics driver, providing DCN 4.2-specific HPO logic that is compiled into the broader display stack. There is no separate device binding here, so it cannot be evaluated for keep-or-remove on its own.

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codex reasoning notes (technical)

Not a driver directory: DCN4.2 HPO display-engine block code under the AMD display stack, with no standalone kernel device binding or driver entry point in this directory.