drm/amd/display: add support for DTO genarated dscclk

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Current implementation will choose to use refclk as dscclk. This is not
recommended by hardware team as refclk is a fixed value which could
cause unnecessary power consumption or it could be not enough for large
DSC timings. So we are adding new interfaces so we could switch to use
dynamically generated DSCCLK by DTO. So DSCCLK is programmable based on
current pixel clock and dispclk.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Chaitanya Dhere <chaitanya.dhere@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Wenjing Liu 2023-12-01 06:25:20 -07:00 • committed by Alex Deucher

parent dd5c6362dd

commit 08a32addf1

3 changed files with 55 additions and 1 deletions

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25

drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c

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4

drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h

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27

drivers/gpu/drm/amd/display/dc/link/link_dpms.c

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