kernel/drivers/gpu/drm/amd/display/dc/dc.h, branch linux-rolling-stable

drm/amd/display: Don't use kernel-doc comment in dc_register_software_state struct

2026-02-26T23:00:58Z

[ Upstream commit b1e2a6a57aa95f8192e8edb9edaecfd326745d32 ] Sphinx reports kernel-doc warning: WARNING: ./drivers/gpu/drm/amd/display/dc/dc.h:2796 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst * Software state variables used to program register fields across the display pipeline Don't use kernel-doc comment syntax to fix it. Fixes: b0ff344fe70c ("drm/amd/display: Add interface to capture expected HW state from SW state") Signed-off-by: Bagas Sanjaya Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Promote DC to 3.2.359

2025-11-18T15:52:16Z

This version brings along the following updates: - Add interface to capture expected HW state from SW state - Add panel Replay capability detection, DPCD reading, and enablement logic - Re-check seamless boot enablement on subsequent dc_commit_streams - Improve DPCD link capability retrieval with increased retries and per-retry delays - Add HPD filter for HDMI - Add pipe topology history tracking to DC - Fix MST initialization on resume when switching from SST to MST during suspend - Fix double cursor on DCN20 & DCN30 in non-native scaling - Check DCCG_AUDIO_DTO2 register mask before access - Fix pbn to kbps conversion Reviewed-by: Leo Li Signed-off-by: Taimur Hassan Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add pipe topology history to dc

2025-11-18T15:51:24Z

[Why] There is no way to check pipe topology update history through a dump. [How] Add a topology history structure to dc with snapshots of the most recent pipe topology updates. Reviewed-by: George Shen Signed-off-by: Nicholas Carbones Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add interface to capture expected HW state from SW state

2025-11-18T15:49:49Z

[Why] To debug certain issues, such as underflow, it is common practice to dump the HW state of all registers for analysis. The first thing to check with the dump is to ensure all values are programmed as expected according to SW state. [How] Add interface to DC to capture expected HW register values based on SW state. Reviewed-by: Dillon Varone Signed-off-by: George Shen Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Promote DC to 3.2.358

2025-11-12T02:54:16Z

Summary: * Enable VRR when unsynced with the stream * Refactor DSC cap calculation for dcn35 * Add debug log for power feature * Fix fill latency issue * Do not initialize LSDMA if it is not supported by DMU Reviewed-by: Aurabindo Pillai Signed-off-by: Taimur Hassan Signed-off-by: Fangzhi Zuo Signed-off-by: Alex Deucher

drm/amd/display: Change lock descriptor values

2025-11-12T02:54:15Z

[Why] Review of usage scenarios requires dc_lock_descriptor modification. [How] Replace STATE/LINK/STREAM/PLANE with GLOBAL/STREAM/LINK, where the first means all streams to be locked. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Dominik Kaszewski Signed-off-by: Fangzhi Zuo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add new SMART POWER OLED interfaces

2025-11-12T02:54:15Z

[why && how] To optimize power consumption on certain OLED LED panels by sending MaxCLL per frame to TCON Reviewed-by: Aric Cyr Signed-off-by: Ian Chen Signed-off-by: Fangzhi Zuo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add interface to capture power feature status for debug logging

2025-11-12T02:54:15Z

[Why] The status of various power features is often important information when debugging certain issues, such as underflow. This info helps to narrow down the potential sources of errors. [How] Add dc interface to capture power feature enablement status. Reviewed-by: Dillon Varone Signed-off-by: George Shen Signed-off-by: Fangzhi Zuo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Promote DC to 3.2.357

2025-11-04T16:53:21Z

This version brings along following update: - HDCP2 FW locality check refactors - Fix black screen issue with HDMI output - Increase IB mem size - Revert max buffered cursor size to 64 - Extend inbox0 lock to run Replay / PSR - Refactor VActive implementation - Add Pstate viewport reduction - Persist stream refcount through restore Acked-by: Wayne Lin Signed-off-by: Taimur Hassan Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Promote DC to 3.2.356

2025-10-28T13:59:19Z

This version brings along following update: - Fix incorrect return of vblank enable on unconfigured crtc - Add HDR workaround for a specific eDP - Make observers const-correct - Add lock descriptor to check_update - Update cursor offload assignments - Add dc interface to log pre os firmware information - Init dispclk from bootup clock for DCN315 - Remove dc param from check_update - Update link encoder assignment - Add more DC HW state info to underflow logging - Rename dml2 to dml2_0 folder - Fix notification of vtotal to DMU for cursor offload - Fix wrong index for DCN401 cursor offload - Add opp count validation to dml2.1 - Fix DMUB reset sequence for DCN32 - Bump minimum for frame_warn_limit Acked-by: Tom Chung Signed-off-by: Taimur Hassan Signed-off-by: Wayne Lin Tested-by: Dan Wheeler Signed-off-by: Alex Deucher