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drm/amd/display: add a debug option to force dp2 lt fallback method
authorWenjing Liu <wenjing.liu@amd.com>
Fri, 26 Nov 2021 19:18:59 +0000 (14:18 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 7 Dec 2021 18:11:34 +0000 (13:11 -0500)
commit800de20b1dbdfd85e303a42b0f27c0162ce18698
treeb07161c6fa9c8dbb22d61d205c316e348e85f418
parenteb9e59ebfe7354c18d7d6f59211fc7a7b794d019
drm/amd/display: add a debug option to force dp2 lt fallback method

[why]
A debug option is needed to temporarily force dp2 new link training
fallback method for debugging purpose.

Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
drivers/gpu/drm/amd/display/dc/dc.h