linux-next.git/drivers/gpu/drm/amd/display/modules/power/Makefile, branch master

drm/amd/display: Integrate power_helpers.c functionality into power.c.

2026-07-01T15:16:13+00:00

[Why] Reduces file fragmentation in the power module by consolidating power_helpers.c . The helper file contained minimal functionality (single utility function and shared includes) that didn't warrant a separate compilation unit, leading to increased build complexity and maintenance overhead. [How] Consolidated power_helpers.c content into the internal module implementation. Moved macro outside platform-specific conditional block for wider availability. Reviewed-by: Josip Pavic Signed-off-by: Lohita Mudimela Signed-off-by: George Zhang Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactor Replay functionality into dedicated power_replay module

2026-05-19T15:45:41+00:00

[Why] Extract all Replay related functions from power.c and power_helpers.c into a new power_replay.c module for better code organization and maintainability. [How] Create new power_replay.c file containing Replay-related functions moved from power.c and power_helpers.c . Update mod_power.h with function declarations. Maintain forward declaration for type compatibility. Reviewed-by: Robin Chen Signed-off-by: Lohita Mudimela Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactor PSR functionality into dedicated power_psr module

2026-05-19T15:45:40+00:00

[Why] Extract all PSR (Panel Self Refresh) related functions from power.c into a new power_psr.c module for better code organization and maintainability. [How] Create new power_psr.c file containing all PSR-related functions moved from power.c. Remove static qualifier from shared functions to enable cross-file access: - psr_context_to_mod_power_psr_context: Convert PSR context to module power PSR context - map_index_from_stream: Map stream to power entity index - delay_two_frames: Wait for two frame periods Add function declarations to header. Maintain forward declaration of struct core_power for type compatibility. Reviewed-by: Anthony Koo Signed-off-by: Lohita Mudimela Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Separate ABM functions into dedicated power_abm.c file

2026-05-11T20:10:51+00:00

[Why] Improves code organization by separating Adaptive Backlight Modulation functionality from general power management. This modular approach enhances maintainability and makes the codebase easier to navigate. [How] Create new power_abm.c file containing all ABM-related functions moved from power.c. Remove static qualifier from shared functions to enable cross-file access: - initialize_backlight_caps: Initialize backlight capabilities - validate_ext_backlight_caps: Validate external backlight capabilities - backlight_millipercent_to_pwm: Convert brightness percent to PWM - backlight_millipercent_to_millinit: Convert brightness percent to nits - fill_backlight_level_params: Populate backlight level parametersAdd function declarations to mod_power.h header. Update CMakeLists.txt to include power_abm.c in build. Maintain forward declaration of struct core_power for type compatibility. Rename struct core_power field from 'public' to 'mod_public'. Move internal structures (backlight_state, backlight_properties, dmcu_varibright_cached_properties, core_power) to power_helpers.h to ensure consistent memory layouts across compilation units. Reviewed-by: Martin Leung Signed-off-by: Lohita Mudimela Signed-off-by: James Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Introduce power module on Linux

2026-04-17T19:41:15+00:00

[Why] Other OS supported by DC uses the power module to manage panel power features such as backlight and self-refresh. It contains enhancements on top what amdgpu_dm is doing today that can benefit power. [How] Introduce the power module. It's currently not being used anywhere, a future change will incorporate it into amdgpu_dm. Reviewed-by: Leo Li Signed-off-by: Ray Wu Signed-off-by: Leo Li Signed-off-by: Chenyu Chen Signed-off-by: Alex Deucher

drm/amd/display: Add missing newline at end of file

2019-06-17T16:02:03+00:00

"git diff" says: \ No newline at end of file after modifying the file. Signed-off-by: Geert Uytterhoeven Signed-off-by: Alex Deucher

drm/amd/display: Load DMCU IRAM

2018-11-26T20:47:53+00:00

DMCU IRAM must be loaded by the driver before DMCU can function. Move the IRAM code out of the shadows and into a new file modules/power/power_helpers.c The IRAM table contains the backlight curve and ABM parameters Add this new file to the Makefiles Call dmcu_load_iram in late init of DM Move struct dmcu_version from dc.h to dmcu.h to allow dmcu to be included on its own Signed-off-by: David Francis Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher