drm/amd/display: only include FEC overhead if both asic and display support FEC

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[why]
Some asics don't support FEC but FEC overhead is added into link
bandwidth calculation by mistake. This causes certain timing cannot be
validated.

[how]
Only include FEC overhead if both asic and display support FEC.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Ashley Thomas <Ashley.Thomas2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Wenjing Liu 2020-02-11 15:33:38 -05:00 • committed by Alex Deucher

parent e625c1eae2

commit c14b726ee0

6 changed files with 18 additions and 5 deletions

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11

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

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6

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

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3

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

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1

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

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1

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c

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1

drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h

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