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DC Patches for September 8, 2025

waynelin amd-gfx stable 1 version In review

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  1. v1 Latest11 patches 1 replyIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/11drm/amd/display: Add HDCP policy controldrivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h+6 -20 replies
2/11drm/amd/display: Add link index in AUX and dpmsdrivers/gpu/drm/amd/display/dc/dce/dce_aux.c drivers/gpu/drm/amd/display/dc/link/link_detection.c drivers/gpu/drm/amd/display/dc/link/link_dpms.c+19 -90 replies
3/11drm/amd/display: dont wait for pipe update during medupdate/highirqdrivers/gpu/drm/amd/display/dc/core/dc.c+1 -10 replies
4/11drm/amd/display: Indicate when custom brightness curves are in usedrivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c+4 -10 replies
5/11drm/amd/display: Read DPCD to obtain eDP capability information.drivers/gpu/drm/amd/display/dc/dc_dp_types.h drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c+7 -00 replies
6/11drm/amd/display: Update dchubbub.h for hubbub perfmon supportdrivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h+22 -00 replies
7/11drm/amd/display: Refine error message for vblank init failuredrivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c+1 -10 replies
8/11drm/amd/display: Correct sequences and delays for DCN35 PG & RCGdrivers/gpu/drm/amd/display/dc/dc.h drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c +4 more+111 -1640 replies
9/11drm/amd/display: Fix pbn_div Calculation Errordrivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h+12 -50 replies
10/11drm/amd/display: Disable stutter when programming watermarks on dcn32drivers/gpu/drm/amd/display/dc/dc.h drivers/gpu/drm/amd/display/dc/hubbub/dcn32/dcn32_hubbub.c drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c +1 more+36 -60 replies
11/11drm/amd/display: Promote DC to 3.2.349drivers/gpu/drm/amd/display/dc/dc.h+1 -10 replies

Reviews trailers per patch

All 11 patches have a Reviewed-by or Acked-by.

PatchNicholas KazlauskasAric CyrWenjing LiuAlvin LeeAlex HungRobin ChenAurabindo PillaiCharlene LiuTom ChungDan Wheeler
SeriesT-b
1/11R-b R-b
2/11R-b
3/11R-b
4/11R-b
5/11R-b R-b
6/11R-b
7/11R-b
8/11R-b
9/11R-b
10/11R-b
11/11A-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 10 reviewers.

Read the v1 thread

Cover letter [PATCH 00/11] DC Patches for September 8, 2025

This DC patchset brings improvements in multiple areas. In summary, we highlight:

- Disable stutter when programming watermarks on dcn32
- Fix pbn_div Calculation Error
- Correct sequences and delays for DCN35 PG & RCG
- Define interfaces for hubbub perfmance monitoring support
- Extend to read eDP general capability 2
- Indicate when custom brightness curves are in use
- Dont wait for pipe update during medupdate/highirq
- Add HDCP retry_limit control parameter

Cc Dan Wheeler <[email protected]>

---

Allen Li (1):
drm/amd/display: Read DPCD to obtain eDP capability information.

Ausef Yousof (1):
drm/amd/display: dont wait for pipe update during medupdate/highirq

Cruise Hung (1):
drm/amd/display: Add link index in AUX and dpms

Dillon Varone (1):
drm/amd/display: Disable stutter when programming watermarks on dcn32

Fangzhi Zuo (1):
drm/amd/display: Fix pbn_div Calculation Error

Mario Limonciello (1):
drm/amd/display: Indicate when custom brightness curves are in use

Oleh Kuzhylnyi (1):
drm/amd/display: Add HDCP policy control

Ovidiu Bunea (1):
drm/amd/display: Correct sequences and delays for DCN35 PG & RCG

Roman Li (1):
drm/amd/display: Refine error message for vblank init failure

Taimur Hassan (1):
drm/amd/display: Promote DC to 3.2.349

Wenjing Liu (1):
drm/amd/display: Update dchubbub.h for hubbub perfmon support

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   9 +-
 .../amd/display/amdgpu_dm/amdgpu_dm_hdcp.c    |   2 +
 .../display/amdgpu_dm/amdgpu_dm_mst_types.c   |  13 +-
 .../display/amdgpu_dm/amdgpu_dm_mst_types.h   |   2 +-
 drivers/gpu/drm/amd/display/dc/core/dc.c      |   2 +-
 drivers/gpu/drm/amd/display/dc/dc.h           |   4 +-
 drivers/gpu/drm/amd/display/dc/dc_dp_types.h  |   1 +
 .../amd/display/dc/dccg/dcn35/dcn35_dccg.c    |  74 +++++------
 drivers/gpu/drm/amd/display/dc/dce/dce_aux.c  |  17 ++-
 .../display/dc/hubbub/dcn32/dcn32_hubbub.c    |  37 +++++-
 .../amd/display/dc/hwss/dcn35/dcn35_hwseq.c   | 115 +++---------------
 .../amd/display/dc/hwss/dcn35/dcn35_init.c    |   3 -
 .../amd/display/dc/hwss/dcn351/dcn351_init.c  |   3 -
 .../gpu/drm/amd/display/dc/inc/hw/dchubbub.h  |  22 ++++
 .../gpu/drm/amd/display/dc/inc/hw/pg_cntl.h   |   1 +
 .../drm/amd/display/dc/link/link_detection.c  |   2 +-
 .../gpu/drm/amd/display/dc/link/link_dpms.c   |   9 +-
 .../dc/link/protocols/link_dp_capability.c    |   6 +
 .../amd/display/dc/pg/dcn35/dcn35_pg_cntl.c   |  78 +++++++-----
 .../dc/resource/dcn32/dcn32_resource.c        |   1 +
 .../dc/resource/dcn32/dcn32_resource.h        |   3 +-
 .../gpu/drm/amd/display/modules/hdcp/hdcp.c   |   5 +-
 .../drm/amd/display/modules/inc/mod_hdcp.h    |   1 +
 23 files changed, 220 insertions(+), 190 deletions(-)
Signature · 1 line
2.43.0

Read the cover letter in its thread