drm/amd/display: Add link dp trace support

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[Why]
It is nice to have link training and link loss status logging in
our trace, and this patch add the all necessary accessors in dc
side.

[How]
1. Define dp_trace struct and create new file link_dp_trace.c and
link_dp_trace.h;
2. Add dp link training status update in dc_link_dp.c;

Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Leo (Hanghong) Ma 2022-02-11 09:44:05 -05:00 • committed by Alex Deucher

parent 53923e62af

commit 5fed53c798

6 changed files with 268 additions and 2 deletions

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5

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

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24

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

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36

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

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2

drivers/gpu/drm/amd/display/dc/link/Makefile

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146

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

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57

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

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