git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-18 06:33:43 -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

19
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
View File

@@ -724,6 +724,18 @@ struct amdgpu_dm_wb_connector {
extern const struct amdgpu_ip_block_version dm_ip_block;
enum amdgpu_transfer_function {
AMDGPU_TRANSFER_FUNCTION_DEFAULT,
AMDGPU_TRANSFER_FUNCTION_SRGB,
AMDGPU_TRANSFER_FUNCTION_BT709,
AMDGPU_TRANSFER_FUNCTION_PQ,
AMDGPU_TRANSFER_FUNCTION_LINEAR,
AMDGPU_TRANSFER_FUNCTION_UNITY,
AMDGPU_TRANSFER_FUNCTION_GAMMA22,
AMDGPU_TRANSFER_FUNCTION_GAMMA24,
AMDGPU_TRANSFER_FUNCTION_GAMMA26,
};
struct dm_plane_state {
struct drm_plane_state base;
struct dc_plane_state *dc_state;
@@ -737,6 +749,13 @@ struct dm_plane_state {
* The blob (if not NULL) is an array of &struct drm_color_lut.
*/
struct drm_property_blob *degamma_lut;
/**
* @degamma_tf:
*
* Predefined transfer function to tell DC driver the input space to
* linearize.
*/
enum amdgpu_transfer_function degamma_tf;
};
struct dm_crtc_state {