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

AMD DCN 4.2 Display Clock Manager Helpers

Internal helper code inside the AMD GPU display stack that manages clock settings for the DCN 4.2 display hardware block found in recent AMD graphics products. It is one small piece of the larger amdgpu display engine, not a piece of hardware on its own.

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 standalone driver; it is a subcomponent of the AMD amdgpu display core that handles display clock management for the DCN 4.2 generation. It only makes sense as part of the broader AMD display driver and should not be evaluated for keep-or-remove on its own.

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codex reasoning notes (technical)

Not a driver directory: contains AMD DCN4.2 display clock-manager implementation code, an internal helper subcomponent under amdgpu display rather than a standalone kernel-bound hardware driver.