wireguard-linux/drivers/gpu/drm/amd/display/dc/dce, branch devel

drm/amd/display: Remove redundant includes from DC

2026-04-17T19:21:52Z

[Why] The explicit include of linux/array_size.h in Display Core (DC) is redundant. The ARRAY_SIZE macro is already provided by dm_services.h (via os_types.h) which DC includes. [How] Remove the unnecessary #include from dc_hw_sequencer.c and dce_clock_source.c. Fixes: 2d2366176445 ("drm/amd/display: Replace inline NUM_ELEMENTS macro with ARRAY_SIZE") CC: Linus Probert Signed-off-by: Roman Li Reviewed-by: Alex Hung Signed-off-by: Alex Deucher

drm/amd/display: Replace inline NUM_ELEMENTS macro with ARRAY_SIZE

2026-04-03T18:04:43Z

Replaces the use of local NUM_ELEMENTS macro with the ARRAY_SIZE macro defined in . This aligns with existing coccinelle script array_size.cocci which has been applied to other sources in order to remove inline sizeof(a)/sizeof(a[0]) patterns from other source files. Suggested-by: Robert P. J. Day Signed-off-by: Linus Probert Signed-off-by: Alex Deucher

drm/amd/display: Fixed Silence complier warnings in dc

2026-03-30T19:12:15Z

[Why] Resolve compiler warnings by marking unused parameters explicitly. [How] In .c and .h function definitions, keep parameter names in signatures and add a line with `(void)param;` in function body Preserved function signatures and avoids breaking code paths that may reference the parameter under conditional compilation. Reviewed-by: Dillon Varone Reviewed-by: Austin Zheng Signed-off-by: Gaghik Khachatrian Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher

drm/amd/display: Fixed silence signed/unsigned mismatch warnings

2026-03-30T18:55:39Z

Fix compiler warnings by consistently use the same signedness for a given value Reviewed-by: Joshua Aberback Signed-off-by: Clay King Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher

drm/amd/display: Fix Silence signed/unsighed mismatch warning in dc

2026-03-30T18:55:17Z

[Why] Implicit signed-to-unsigned conversions caused compiler warnings in DC paths. [How] Added explicit (unsigned int)/(uint32_t) casts for sentinel -1 assignments and IRQ ~MASK initializers, with small cast alignment in logging/DPCD code. Functionality and behavior is unchanged; only type intent is explicit. Reviewed-by: Dillon Varone Signed-off-by: Gaghik Khachatrian Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher

drm/amd/display: add a no_hpd link_encoder_funcs variant

2026-03-24T17:35:28Z

For link encoders without HPD (analog or LVDS), add a link_encoder_funcs structure with no hpd enable callbacks. The enable and disable hpd callbacks are currently not used outside of a special case in debugfs which checks if the hpd is valid before using it, but this will protect us if they ever are. Reviewed-by: Srinivasan Shanmugam Signed-off-by: Alex Deucher

drm/amd/display: Sync dcn42 with DC 3.2.373

2026-03-11T17:58:07Z

This patch provides a bulk merge to align driver support for DCN42 with Display Core version 3.2.373. It includes upgrade for: - clk_mgr - dml2/dml21 - optc - hubp - mpc - optc - hwseq Acked-by: Aurabindo Pillai Signed-off-by: Roman Li Signed-off-by: Alex Hung Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add documentation and cleanup DMUB HW lock manager

2026-03-11T15:02:03Z

To document how the helpers should be used before a subsequent change adds new locations that these helpers will be used. Reviewed-by: Ovidiu (Ovi) Bunea Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Hung Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Enable dcn42 DC

2026-02-23T19:28:33Z

Add support for DCN 4.2 in Display Core Signed-off-by: Roman Li Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Delete unused dce_clk_mgr.c

2026-02-23T19:26:11Z

This file was not compiled or included anywhere and not modified for years. And it has duplicate function definitions of many functions that are defined in other files. That leads to a lot of confusion (for both developers and for code editors), eg. when searching for a definition of a function it can end up on one of the functions in this file instead of the real implementations. I suspect that it was forgotten that this should be deleted after the various clock manager functions were split into hardware generation specific files. Delete it now. Signed-off-by: Timur Kristóf Reviewed-by: Rodrigo Siqueira Reviewed-by: Alex Hung Signed-off-by: Alex Deucher