diff options
| author | Mario Limonciello <[email protected]> | 2025-06-23 17:11:14 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-06-24 14:05:32 +0000 |
| commit | 009bfc5ec5c953534d0f528d1c1e4f60668b7371 (patch) | |
| tree | bb428b3d7e6462ee9448e8dee28622e30a1160f0 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | drm/amd/display: Fix AMDGPU_MAX_BL_LEVEL value (diff) | |
| download | kernel-009bfc5ec5c953534d0f528d1c1e4f60668b7371.tar.gz kernel-009bfc5ec5c953534d0f528d1c1e4f60668b7371.zip | |
drm/amd/display: Add a trace event for brightness programming
[Why]
Brightness programming may involve a conversion of a user requested
brightness against what was in a custom brightness curve. The values
might not match what a user programmed.
[How]
Add a new trace event to show specific converted brightness values.
Reviewed-by: Alex Hung <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 14e7c2aea206..9310cb7629a2 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4861,6 +4861,14 @@ static void amdgpu_dm_backlight_set_level(struct amdgpu_display_manager *dm, reallow_idle = true; } + if (trace_amdgpu_dm_brightness_enabled()) { + trace_amdgpu_dm_brightness(__builtin_return_address(0), + user_brightness, + brightness, + caps->aux_support, + power_supply_is_system_supplied() > 0); + } + if (caps->aux_support) { rc = dc_link_set_backlight_level_nits(link, true, brightness, AUX_BL_DEFAULT_TRANSITION_TIME_MS); |