drm/amd/display: DispalyPort: Write OUI only if panel supports it

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[why]
Organizational Unit Identifier register is optional, and its
presence is published via Down Stream Port Count register.
Writing this register when not available will result in errors

[how]
Read this register and continue writing OUI only if the panel
has the support advertised.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Aurabindo Pillai 2020-04-07 10:22:27 -04:00 • committed by Alex Deucher

parent d4caa72e27

commit 967727021e

1 changed files with 15 additions and 0 deletions

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

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