From: Wenjing Liu <wenjing....@amd.com>
[why]
Number of DSC slices is an input to DML with high dependency
on display specific capability. This isn't something DML can decide
on its own. DML has to use the original number of DSC slices input
to DML during validation without modification. Otherwise the
computed DSC delay will not reflect the current configuration
and therefore causes validation failures.
[how]
Remove DML override for number of DSC slices parameter.
Reviewed-by: Alvin Lee <alvin.l...@amd.com>
Acked-by: Alan Liu <haoping....@amd.com>
Signed-off-by: Wenjing Liu <wenjing....@amd.com>
---
.../dc/dml/dcn32/display_mode_vba_32.c | 20 -------------------
1 file changed, 20 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
index c6c3a9e6731a..1712843dafaa 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
@@ -1897,26 +1897,6 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct
display_mode_lib *mode_l
v->MaximumSwathWidthInLineBufferChroma);
}
- /*Number Of DSC Slices*/
- for (k = 0; k < mode_lib->vba.NumberOfActiveSurfaces; ++k) {
- if (mode_lib->vba.BlendingAndTiming[k] == k) {
- if (mode_lib->vba.PixelClockBackEnd[k] > 4800) {
- mode_lib->vba.NumberOfDSCSlices[k] =
dml_ceil(mode_lib->vba.PixelClockBackEnd[k] / 600,
- 4);
- } else if (mode_lib->vba.PixelClockBackEnd[k] > 2400) {
- mode_lib->vba.NumberOfDSCSlices[k] = 8;
- } else if (mode_lib->vba.PixelClockBackEnd[k] > 1200) {
- mode_lib->vba.NumberOfDSCSlices[k] = 4;
- } else if (mode_lib->vba.PixelClockBackEnd[k] > 340) {
- mode_lib->vba.NumberOfDSCSlices[k] = 2;
- } else {
- mode_lib->vba.NumberOfDSCSlices[k] = 1;
- }
- } else {
- mode_lib->vba.NumberOfDSCSlices[k] = 0;
- }
- }
-
dml32_CalculateSwathAndDETConfiguration(
mode_lib->vba.DETSizeOverride,
mode_lib->vba.UsesMALLForPStateChange,
--
2.37.0
