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drm/amd/display: Implement new backlight_level_params structure

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[Why]
Implement the new backlight_level_params structure as part of the VBAC
framework, the information in this structure is needed to be passed down
to the DMCUB to identify the backlight control type, to adjust the
backlight of the panel and to perform any required conversions from PWM
to nits or vice versa.

[How]
Modified existing functions to include the new backlight_level_params
structure.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Kaitlyn Tse <Kaitlyn.Tse@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kaitlyn Tse
2024-10-03 18:13:27 -04:00
committed by Alex Deucher
parent ebacc13403
commit 38077562e0
20 changed files with 119 additions and 41 deletions
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7
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@@ -4640,7 +4640,12 @@ static void amdgpu_dm_backlight_set_level(struct amdgpu_display_manager *dm,
if (!rc)
DRM_DEBUG("DM: Failed to update backlight via AUX on eDP[%d]\n", bl_idx);
} else {
rc = dc_link_set_backlight_level(link, brightness, 0);
struct set_backlight_level_params backlight_level_params = { 0 };
backlight_level_params.backlight_pwm_u16_16 = brightness;
backlight_level_params.transition_time_in_ms = 0;
rc = dc_link_set_backlight_level(link, &backlight_level_params);
if (!rc)
DRM_DEBUG("DM: Failed to update backlight on eDP[%d]\n", bl_idx);
}