diff options
| author |   Dillon Varone <dillon.varone@amd.com> | 2023-04-06 16:10:04 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2023-04-21 08:50:09 -0400 |
| commit | 92d1fe5954dc28c4e0260b730dd79d2acfdfa29f (patch) | |
| tree | f7ac5bc05b9a036d0d8f8357ae7d9eb180143890 /drivers | |
| parent | drm/amd/amdgpu: Fix style issues in amdgpu_discovery.c (diff) | |
| download | wireguard-linux-92d1fe5954dc28c4e0260b730dd79d2acfdfa29f.tar.xz wireguard-linux-92d1fe5954dc28c4e0260b730dd79d2acfdfa29f.zip | |
drm/amd/display: add support for low bpc
[WHY&HOW]
Low bpc timings are failing validation, port a patch to allow them to pass.
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c index 61cc4904ade4..cad2bc3aea67 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c @@ -1595,7 +1595,6 @@ double dml32_TruncToValidBPP( unsigned int NonDSCBPP0; unsigned int NonDSCBPP1; unsigned int NonDSCBPP2; - unsigned int NonDSCBPP3; if (Format == dm_420) { NonDSCBPP0 = 12; @@ -1604,10 +1603,9 @@ double dml32_TruncToValidBPP( MinDSCBPP = 6; MaxDSCBPP = 1.5 * DSCInputBitPerComponent - 1 / 16; } else if (Format == dm_444) { - NonDSCBPP0 = 18; - NonDSCBPP1 = 24; - NonDSCBPP2 = 30; - NonDSCBPP3 = 36; + NonDSCBPP0 = 24; + NonDSCBPP1 = 30; + NonDSCBPP2 = 36; MinDSCBPP = 8; MaxDSCBPP = 3 * DSCInputBitPerComponent - 1.0 / 16; } else { @@ -1661,9 +1659,7 @@ double dml32_TruncToValidBPP( else return dml_floor(16.0 * MaxLinkBPP, 1.0) / 16.0; } else { - if (MaxLinkBPP >= NonDSCBPP3) - return NonDSCBPP3; - else if (MaxLinkBPP >= NonDSCBPP2) + if (MaxLinkBPP >= NonDSCBPP2) return NonDSCBPP2; else if (MaxLinkBPP >= NonDSCBPP1) return NonDSCBPP1; @@ -1674,7 +1670,7 @@ double dml32_TruncToValidBPP( } } else { if (!((DSCEnable == false && (DesiredBPP == NonDSCBPP2 || DesiredBPP == NonDSCBPP1 || - DesiredBPP == NonDSCBPP0 || DesiredBPP == NonDSCBPP3)) || + DesiredBPP <= NonDSCBPP0)) || (DSCEnable && DesiredBPP >= MinDSCBPP && DesiredBPP <= MaxDSCBPP))) return BPP_INVALID; else |