Commit Graph

6 Commits

Author SHA1 Message Date
Harry Wentland
d36771a034 drm/amd/display: Add DCCG DIO, HPO, OPP, and OPTC support for FRL
This adds support to HW block programming for the core blocks
for HDMI FRL:
- DIO
- HPO
- OPP
- OPTC

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-06-03 13:44:31 -04:00
Gaghik Khachatrian
f82480fafe drm/amd/display: Fixed Silence complier warnings in dc
[Why]
Resolve compiler warnings by marking unused parameters explicitly.

[How]
In .c and .h function definitions, keep parameter names
in signatures and add a line with `(void)param;` in function body

Preserved function signatures and avoids breaking code paths that
may reference the parameter under conditional compilation.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Gaghik Khachatrian <gaghik.khachatrian@amd.com>
Signed-off-by: Chuanyu Tseng <chuanyu.tseng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2026-03-30 15:12:15 -04:00
LinCheng Ku
cea573a8e1 drm/amd/display: Add USB-C DP Alt Mode lane limitation in DCN32
[Why]
USB-C DisplayPort Alt Mode with concurrent USB data needs lane count
limitation to prevent incorrect 4-lane DP configuration when only 2 lanes
are available due to hardware lane sharing between DP and USB3.

[How]
Query DMUB for Alt Mode status (is_dp_alt_disable, is_usb, is_dp4) in
dcn32_link_encoder_get_max_link_cap() and cap DP to 2 lanes when USB is
active on USB-C port. Added inline documentation explaining the USB-C
lane sharing constraint.

Reviewed-by: PeiChen Huang <peichen.huang@amd.com>
Signed-off-by: LinCheng Ku <lincheng.ku@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-16 13:25:25 -05:00
Dmytro Laktyushkin
def3488eb0 drm/amd/display: refactor HPD to increase flexibility
Currently all dcn revisions have to follow the same codepath for
hotplug detection. This change allows per dcn hpd handling consolidating
hpd code in link_encoder.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-12-08 13:56:40 -05:00
Wesley Chalmers
782f0bb5a1 drm/amd/display: Rename header file link.h to link_service.h
[WHY]
Header file name "link.h" collides with system header when dc is
compiled as a user-mode library

[WHAT]
Rename link.h to link_service.h to avoid name collision

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-15 16:57:29 -04:00
Mounika Adhuri
2d62bb450e drm/amd/display: Refactor DCN3X into component folder
[why]
Move DCN3X files to unique component folder.

[how]
Create respective component folder in dc, move the DCN3X files into
corresponding new folders and made appropriate changes for compilation
in Makefiles.

Reviewed-by: Martin Leung <martin.leung@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Mounika Adhuri <moadhuri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-06-14 16:18:55 -04:00