drm/amd/display: Add ENGINE_ID_DIGD condition check for Navi14

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[Why]
Navi10 has 6 PHY, but Navi14 only has 5 PHY, that is
because there is no ENGINE_ID_DIGD in Navi14. Without
this patch, many HDMI related issues (e.g. HDMI S3
resume failure, HDMI pink screen on boot) will be
observed.

[How]
If "eng_id" is larger than ENGINE_ID_DIGD, then
add "eng_id" by 1.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Zhan Liu 2019-11-01 21:10:17 -04:00 • committed by Alex Deucher

parent 26e99ba6d1

commit 9fd4c2d712

1 changed files with 5 additions and 0 deletions

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

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