drm/amd/display: Add DSC Support for Synaptics Cascaded MST Hub

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Traditional synaptics hub has one MST branch device without virtual dpcd.
Synaptics cascaded hub has two chained MST branch devices. DSC decoding
is performed via root MST branch device, instead of the second MST branch
device.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Fangzhi Zuo 2023-02-24 13:45:21 -05:00 • committed by Alex Deucher

parent 1aff0a5d71

commit 54c7b715b5

2 changed files with 31 additions and 0 deletions

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19

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

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12

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h

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