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(parent: 1565904) | patch
drm/amd/display: do not reset lane count in EQ fallback
authorWenjing Liu <Wenjing.Liu@amd.com>
Wed, 23 Aug 2017 21:02:34 +0000 (17:02 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 26 Sep 2017 22:17:08 +0000 (18:17 -0400)
commit1cf49dea28dfc76f0816a4bc73c2ab975c72f55d
treeb10986b0a1c45c80194fdf703eb2a07cd058176dtree | snapshot
parent156590454259a19d1709fab2ff7d59870574e822commit | diff
drm/amd/display: do not reset lane count in EQ fallback

[Description]
According to DP1.4 specs we should not reset lane count back
when falling back in failing EQ training.
This causes PHY test pattern compliance to fail as infinite LT
when LT fails EQ to 4 RBR and fails CR in a loop.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c diff | blob | history
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