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| author | Muyuan Yang <muyuan.yang@amd.com> | 2024-06-05 10:24:59 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-10-01 17:37:21 -0400 |
| commit | e1b58b2b116af57a69ba5d8574c9e960b2b0b2e8 (patch) | |
| tree | 6c1095af20c08327231bf4b03a04331a6effd77d /drivers/gpu | |
| parent | 70f75eef5f74abc42c16f3108544c317c0ee06a3 (diff) | |
| download | lwn-e1b58b2b116af57a69ba5d8574c9e960b2b0b2e8.tar.gz lwn-e1b58b2b116af57a69ba5d8574c9e960b2b0b2e8.zip | |
drm/amd/display: Change Brightness Control Priority
Prioritize Aux-based over PWM-based brightness control
for more types of panels and introduce a new structure
to store and manage the type of brightness control used.
Reviewed-by: Anthony Koo <anthony.koo@amd.com>
Signed-off-by: Muyuan Yang <muyuan.yang@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_types.h | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 8878a770c376..059e5f4ede49 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -1786,6 +1786,7 @@ struct dc_link { // BW ALLOCATON USB4 ONLY struct dc_dpia_bw_alloc dpia_bw_alloc_config; bool skip_implict_edp_power_control; + enum backlight_control_type backlight_control_type; }; /* Return an enumerated dc_link. diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index b0b7102fdbc7..3401f4c9fb10 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -923,6 +923,12 @@ struct display_endpoint_id { enum display_endpoint_type ep_type; }; +enum backlight_control_type { + BACKLIGHT_CONTROL_PWM = 0, + BACKLIGHT_CONTROL_VESA_AUX = 1, + BACKLIGHT_CONTROL_AMD_AUX = 2, +}; + #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) struct otg_phy_mux { uint8_t phy_output_num; |