diff options
| author | Mario Limonciello <[email protected]> | 2024-06-07 06:02:28 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-06-14 20:17:11 +0000 |
| commit | 2fe87f54abdc5c29bd2ebc301964926ea27b3d89 (patch) | |
| tree | 3e3b9f918c8c2e79ddad6aa7ff3662bafac4657f /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | |
| parent | drm/amdgpu: drop some kernel messages in VCN code (diff) | |
| download | kernel-2fe87f54abdc5c29bd2ebc301964926ea27b3d89.tar.gz kernel-2fe87f54abdc5c29bd2ebc301964926ea27b3d89.zip | |
drm/amd/display: Set default brightness according to ACPI
Currently, amdgpu will always set up the brightness at 100% when it
loads. However this is jarring when the BIOS has it previously
programmed to a much lower value.
The ACPI ATIF method includes two members for "ac_level" and "dc_level".
These represent the default values that should be used if the system is
brought up in AC and DC respectively.
Use these values to set up the default brightness when the backlight
device is registered.
v2: squash in ACPI fix
Reviewed-by: Leo Li <[email protected]>
Acked-by: Alex Deucher <[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.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h index 94fc4c15d2db..d64aabad032e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -180,6 +180,14 @@ struct amdgpu_dm_backlight_caps { * @aux_support: Describes if the display supports AUX backlight. */ bool aux_support; + /** + * @ac_level: the default brightness if booted on AC + */ + u8 ac_level; + /** + * @dc_level: the default brightness if booted on DC + */ + u8 dc_level; }; /** |