drm/amd/display: dcn42 don't round up disclk and dppclk

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[why]
dml2 based on num_enabled clock != 2 to do clock ramming to dpm.
apu has 8 levels dispclk/dppclk/dcfclk/fclk, but only 4 levels of memclk.
to avoid mapping dispclk/dppclk to DPM clock,
based on arch review, force dispclk/dppclk num_level as 2.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@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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Charlene Liu 2026-03-02 15:45:41 -05:00 • committed by Alex Deucher

parent 71488869d9

commit 31ea7b0ef3

1 changed files with 8 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/soc_and_ip_translator/dcn42/dcn42_soc_and_ip_translator.c

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