drm/amd/display: DPCD for Selective Update

[Why&How]
Add flow to read selective update related info from DPCD,
and pass the info to DMUB.

Reviewed-by: Robin Chen <robin.chen@amd.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Jack Chang <jack.chang@amd.com>
Signed-off-by: Matthew Stewart <matthew.stewart2@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jack Chang 2025-12-04 16:57:47 +08:00 • committed by Alex Deucher
commit a230696d4e
4 changed files with 97 additions and 4 deletions