bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-30 04:22:32 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: add plane degamma TF driver-specific property

Browse Source 
Allow userspace to tell the kernel driver the input space and,
therefore, uses correct predefined transfer function (TF) to go from
encoded values to linear values.

v2:
- rename TF enum prefix from DRM_ to AMDGPU_ (Harry)
- remove HLG TF

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Joshua Ashton <joshua@froggi.es>
Co-developed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Joshua Ashton
2023-11-16 18:57:45 -01:00
committed by Alex Deucher
parent 571c2fa26a
commit d5a348d96e
4 changed files with 62 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
View File

@@ -355,6 +355,11 @@ struct amdgpu_mode_info {
* size of degamma LUT as supported by the driver (read-only).
*/
struct drm_property *plane_degamma_lut_size_property;
/**
* @plane_degamma_tf_property: Plane pre-defined transfer function to
* to go from scanout/encoded values to linear values.
*/
struct drm_property *plane_degamma_tf_property;
};
#define AMDGPU_MAX_BL_LEVEL 0xFF