drm/amd/display: fix incorrect odm change detection logic

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[why]
The current ODM change detection only compares first two ODM slices.
If there are 4 ODM slices and the change is within the last two slices, the
logic fails to detect ODM change and cause us to skip ODM programming
unexpectedly.

[how]
Add a is ODM topology changed resource interface to check any ODM
topology changes with a more generic method.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Wenjing Liu 2023-09-14 12:42:50 -04:00 • committed by Alex Deucher

parent df475cced6

commit d849434977

3 changed files with 35 additions and 6 deletions

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23

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

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8

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

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10

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

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