drm/amd/display: handle DP2.0 RX with UHBR20 but not UHBR13.5 support

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[why]
DP2.0 defines DP2.0 RX capability using bit maps. This means there is
a corner case the DP2.0 RX can declare UHBR20 capability but not UHBR13.5 support.
In this case we should skip UHBR13.5 selection and continue to our next option
in decide liink settings.

Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Wenjing Liu 2022-02-15 18:34:08 -05:00 • committed by Alex Deucher

parent 4a897de1d6

commit 4185f99094

1 changed files with 37 additions and 12 deletions

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

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