drm/amd/display: Add link enc null ptr check for cable ID (#2597)

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[Why]
Certain configurations will result in link encoder
to not be assigned to the link at the time we apply
cable ID logic. We should skip it in those cases.

[How]
Check if link_enc is not null before applying
cable ID.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Shen, George 2022-01-28 22:03:55 +08:00 • committed by Alex Deucher

parent 274b924c3e

commit 241a074fc1

1 changed files with 6 additions and 1 deletions

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

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