drm/amd/display: Clamp min DS DCFCLK value to DCN limit

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[why & how]
DCN has a global limit for minimum DS DCFCLK during any operation.

Adhere to that limit and add a debug flag.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Signed-off-by: Chuanyu Tseng <Chuanyu.Tseng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Roman Li 2026-03-13 20:34:48 -04:00 • committed by Alex Deucher

parent cb50faeb0d

commit 5a90bb2160

3 changed files with 7 additions and 0 deletions

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5

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

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1

drivers/gpu/drm/amd/display/dc/dc.h

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1

drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c

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