drm/amd/display: enable eDP DSC seamless boot support

Browse source

[Why]
VBIOS supports DSC for seamless boot on newer hardware.
Reading hardware state allows proper DSC validation without breaking
existing boot display.

[What]
Remove DSC block for boot timing validation and implement hardware state
reading to populate DSC configuration from VBIOS-configured state.
Enhance dsc_read_state function in DCN401 to read additional
DSC parameters.

Reviewed-by: Yihan Zhu <yihan.zhu@amd.com>
Signed-off-by: Mohit Bawa <Mohit.Bawa@amd.com>
Signed-off-by: Chuanyu Tseng <chuanyu.tseng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Mohit Bawa 2025-11-05 13:58:35 -05:00 • committed by Alex Deucher

parent 246808e792

commit add9aee8d8

3 changed files with 80 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

73

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

View file

5

drivers/gpu/drm/amd/display/dc/dsc/dcn401/dcn401_dsc.c

View file

5

drivers/gpu/drm/amd/display/dc/dsc/dsc.h

View file