drm/amd/display: eliminate clock manager code duplication

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[Why]
Clock manager contained significant duplicate code between
variants with identical logic for functions using only SMU
calls or shared registers. This increases maintenance overhead
and potential for bugs.

[How]
Expose clock constants and internal functions in header for
sharing. Remove duplicate implementations and update function
pointers to use shared functions. Refactor remaining
variant-specific functions to use shared constants and helper
functions. Add compatibility comments for hardware differences.

Reviewed-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger@amd.com>
Signed-off-by: Chuanyu Tseng <chuanyu.tseng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Gabe Teeger 2026-03-11 14:34:30 -04:00 • committed by Alex Deucher

parent d77ff7331f

commit 8424ee7d52

2 changed files with 21 additions and 13 deletions

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26

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn42/dcn42_clk_mgr.c

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8

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn42/dcn42_clk_mgr.h

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