drm/amd/display: Add frame alternate 3D & restrict HW packed on dongles

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[WHY?]
Some projectors support frame alternate 3D modes at 120Hz, but DAL3 does
not create timings. Most active DP to HDMI dongles do not translate
infoframes properly to use HW packing stereo mode.

[HOW?]
Create frame alternate 3D timings for displays that support it. Disable HW
packing 3D mode on DP active dongles.

Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Dillon Varone 2022-02-14 10:47:46 -05:00 • committed by Alex Deucher

parent ca6fcfa8d4

commit 91dcfe5fd9

3 changed files with 13 additions and 12 deletions

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11

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

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3

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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11

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c

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