kernel/drivers/gpu/drm/amd/display/dc/link, branch master

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51Z

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

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

2026-02-19T17:16:12Z

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

drm/amd/display: Don't call find_analog_engine() twice

2026-02-19T17:16:12Z

The analog engine is already there in the link_analog_engine variable and assigned to enc_init_data.analog_engine already. I suspect this was a rebase mistake. Fixes: 436d0d22aa70 ("drm/amd/display: Pass proper DAC encoder ID to VBIOS") Signed-off-by: Timur Kristóf Tested-by: Mauro Rossi Reviewed-by: Alex Hung Signed-off-by: Alex Deucher

drm/amd/display: Disable SR feature on eDP1 by default

2026-02-19T17:16:10Z

[Why & How] Disable SR feature on eDP1 by default. Reviewed-by: Wenjing Liu Signed-off-by: Charlene Liu Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Make GPIO HPD path conditional

2026-02-12T20:12:59Z

[Why] Avoid unnecessary GPIO configuration attempts on dcn that doesn't support it. [How] Conditionally use GPIO HPD detection or rely on hw encoder path. Reviewed-by: Charlene Liu Signed-off-by: Roman Li Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: use enum value for panel replay setting

2026-02-12T20:08:56Z

[WHY & HOW] use enum value for Panel Replay setting. Reviewed-by: Robin Chen Signed-off-by: Peichen Huang Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactor virtual directory reorganize encoder and hwss files.

2026-02-12T20:08:49Z

[why] Virtual encoders & hwss were grouped in a separate directory, not aligned with dio and link component structure. [how] Moved virtual_link_encoder and virtual_stream_encoder to dc/dio/virtual/. Moved virtual_link_hwss to dc/link/hwss/ and renamed to link_hwss_virtual. Removed dc/virtual/ directory. Updated all includes and build files (Makefiles) Reviewed-by: Nicholas Kazlauskas Signed-off-by: Bhuvanachandra Pinninti Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Check frame skip capability in Sink side

2026-02-12T20:08:30Z

[Why&How] Frame skip capability is described in AMD VSDB in EDID. Need to retrieve the cap and determine fr.skipping mode enablement Reviewed-by: ChunTao Tso Signed-off-by: Leon Huang Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: External panel replay fsm control

2026-02-03T21:39:25Z

[WHY] To correctly control external panel replay fsm. [HOW] 1. External panel replay is 1-A option only now. 2. Update cursor update and dirty rects commands for external panel replay support. 3. Add external panel replay support flag in dc. Reviewed-by: Robin Chen Signed-off-by: Peichen Huang Signed-off-by: Wayne Lin Tested-by: Dan Wheeler Signed-off-by: Alex Deucher