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

drm/amd/display: Enable DAC in DCE link encoder

2026-02-26T23:01:38Z

[ Upstream commit 4bd8b5f8bcb57b430c35494d8a2471ce5fd7661d ] Ensure that the DAC output is enabled at the correct time by moving it to the DCE link encoder similarly to how digital outputs are enabled. This also removes the call to DAC1EncoderControl from the DCE HWSS, which always felt like it was a hacky solution. Fixes: 0fbe321a93ce ("drm/amd/display: Implement DCE analog link encoders (v2)") Signed-off-by: Timur Kristóf Tested-by: Mauro Rossi Reviewed-by: Alex Hung Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Pass proper DAC encoder ID to VBIOS

2026-02-26T23:00:58Z

[ Upstream commit 436d0d22aa7035a9f9b24fb14cd0e84d6571ea87 ] Similarly to the analog_engine field, add a new analog_id field which contains the encoder ID of the analog encoder that corresponds to the link encoder. Previously, the default encoder ID of the link encoder was used, which meant that we passed the wrong ID in case of DVI-I. Fixes: 5834c33fd3f6 ("drm/amd/display: Add concept of analog encoders (v2)") Reviewed-by: Alex Deucher Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

Merge tag 'amd-drm-next-6.19-2025-12-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

2025-12-02T23:43:49Z

amd-drm-next-6.19-2025-12-02: amdgpu: - Unified MES fix - SMU 11 unbalanced irq fix - Fix for driver reloading on APUs - pp_table sysfs fix - Fix memory leak in fence handling - HDMI fix - DC cursor fixes - eDP panel parsing fix - Brightness fix - DC analog fixes - EDID retry fixes - UserQ fixes - RAS fixes - IP discovery fix - Add missing locking in amdgpu_ttm_access_memory_sdma() - Smart Power OLED fix - PRT and page fault fixes for GC 6-8 - VMID reservation fix - ACP platform device fix - Add missing vm fault handling for GC 11-12 - VPE fix amdkfd: - Partitioning fix Signed-off-by: Dave Airlie From: Alex Deucher Link: https://patch.msgid.link/20251202220101.2039347-1-alexander.deucher@amd.com

Merge tag 'v6.18-rc6' into drm-next

2025-11-20T22:55:08Z

Linux 6.18-rc6 Backmerge in order to merge msm next Signed-off-by: Dave Airlie

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: dynamically clock gate before and after prefetch

2025-11-12T02:54:16Z

[Why] An invalidation request arriving during prefetch can potentially hang the system if dynamic clock gating is enabled and memory power requests are disabled. [How] • Disable clock gating and enable memory power requests for the duration of the prefetch. • Turn on clock gating and disable memory power requests again after prefetch is complete. Limit the scope for DCN35 and DCN42 only. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Leo Chen Signed-off-by: Fangzhi Zuo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: To support Replay frame skip mode

2025-11-12T02:54:15Z

[Why & How] The change is to optimize the Replay power saving by reducing the refresh rate with frame skipping mode Reviewed-by: Robin Chen Signed-off-by: Chuntao Tso Signed-off-by: Fangzhi Zuo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add concept of analog encoders (v2)

2025-10-28T14:09:03Z

Add a num_analog_stream_encoders field to indicate how many analog stream encoders are present. When analog stream encoders are present, create them. Additionally, add an analog_engine field to link encoders and search for supported analog encoders in the BIOS for each link. When connecting an RGB signal, search for analog stream encoders. The actual DCE analog link and stream encoder is going to be added in a subsequent commit. v2: Add check to see if an analog engine is really supported. Signed-off-by: Timur Kristóf Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Introduce MAX_LINK_ENCODERS (v2)

2025-10-28T14:07:52Z

We are going to support analog encoders as well, not just digital, so we need to make space for them in various arrays. v2: Fix typo. Signed-off-by: Timur Kristóf Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Add more DC HW state info to underflow logging

2025-10-28T13:57:44Z

[Why] Debugging underflow issues frequently requires knowing the HW state at the time of underflow. To enable capturing this HW state information, interface functions are needed for the various DC HW blocks. [How] This change adds the interface functions to read HW state for the following DC HW blocks: - HUBBUB - HUBP - DPP - MPC - OPP - DSC - OPTC - DCCG Reviewed-by: George Shen Signed-off-by: Karen Chen Signed-off-by: Wayne Lin Tested-by: Dan Wheeler Signed-off-by: Alex Deucher