kernel/linux.git/drivers/gpu/drm/amd/display/dc/link/protocols, branch linux-7.0.y

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

2026-02-22T01:09:51+00:00

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

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

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: Make GPIO HPD path conditional

2026-02-12T20:12:59+00:00

[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

2026-02-12T20:08:56+00:00

[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: Check frame skip capability in Sink side

2026-02-12T20:08:30+00:00

[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

2026-02-03T21:39:25+00:00

[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

drm/amd/display: panel inst for monitors

2026-01-20T22:19:16+00:00

[WHY] To find proper panel replay panel inst for external monitors. [HOW] Use otg index as panel replay panel inst. Both Replay features use the same logic to get panel inst. Correct the bug that would overwrite panel inst in cmd Reviewed-by: Robin Chen Signed-off-by: Peichen Huang Signed-off-by: Matthew Stewart Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: init code for external panel replay

2026-01-10T19:21:53+00:00

Prepare for supporting panel replay on external monitors. Reviewed-by: Robin Chen Reviewed-by: Wenjing Liu Signed-off-by: Peichen Huang Signed-off-by: Matthew Stewart Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: revert "write default Vesa Aux backlight control in dmub"

2026-01-10T19:21:53+00:00

This reverts commit 08f133e932cc. Commit causing backlight darker when the system wakes up from standby mode, and green screen w/ secondary screen only when the system wakes up from standby mode. Reviewed-by: Charlene Liu Signed-off-by: Derek Lai Signed-off-by: Matthew Stewart Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: PR error HPD_IRQ handling

2026-01-10T19:21:53+00:00

[Why & How] Add error handling for IRQ_HPD in Panel Replay Reviewed-by: Robin Chen Reviewed-by: Wenjing Liu Signed-off-by: Jack Chang Signed-off-by: Matthew Stewart Tested-by: Dan Wheeler Signed-off-by: Alex Deucher