2
0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
linux/drivers/gpu/drm/amd/display/dc/dcn30
Peterson eda7f2e9bb drm/amd/display: Fix low black values by increasing error
[WHY]
Regamma resolution for the first few black levels can have problems for
calibration.

[HOW]
HW LUT is divided into N power-of-2 regions each with K segments.  For
SDR mode we set min point at 2^-10 and increments of 2^-13. It's
generally more than 8-bit SDR needs, but some calibration tools and API
use 12-bit curves.
The fix shifts starting point to 2^-12 and starting increments at 2^-16.

Reviewed-by: Krunoslav Kovac <krunoslav.kovac@amd.com>
Signed-off-by: Peterson <peterson.guo@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-10-07 14:12:01 -04:00
..
dcn30_afmt.c drm/amd/display: Remove unused local variables 2023-02-23 17:36:00 -05:00
dcn30_afmt.h drm/amd/display: Add VPG and AFMT low power support for DCN3.1 2021-09-14 15:57:11 -04:00
dcn30_cm_common.c drm/amd/display: Fix low black values by increasing error 2024-10-07 14:12:01 -04:00
dcn30_mmhubbub.c drm/amd/display: change several dcn30 variables storage-class-specifier to static 2023-03-07 14:22:42 -05:00
dcn30_mmhubbub.h drm/amd/display: rework macros for DWB register access 2022-11-15 13:35:15 -05:00
dcn30_opp.h drm/amd/display: Add DCN3 OPP header 2020-07-01 01:59:14 -04:00
dcn30_vpg.c drm/amd/display: Fix issue with dynamic bpp change for DCN3x 2021-09-23 15:17:30 -04:00
dcn30_vpg.h drm/amd/display: refactor vpg.h 2024-04-09 22:16:02 -04:00
Makefile drm/amd/display: Refactoring HPO 2024-07-23 17:35:45 -04:00