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drm/amd/display: Correct DML calculation to follow HW SPEC

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[ Upstream commit 385c3e4c29e1d4ce8f68687a8c84621e4c0e0416 ]

[Why]
In 2560x1600@240p eDP panel, driver use lowest voltage level
to play 1080p video cause underflow. According to HW SPEC,
the senario should use high voltage level.

[How]
ChromaPre value is zero when bandwidth validation.
Correct ChromaPre calculation.

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Paul Hsieh <Paul.Hsieh@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Paul Hsieh 2023-03-22 17:46:31 +08:00 committed by Greg Kroah-Hartman
parent cf180afea3
commit ec5f00a59a
4 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
View File

@ -4866,7 +4866,7 @@ void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
v->DETBufferSizeCThisState[k],
&v->UrgentBurstFactorCursorPre[k],
&v->UrgentBurstFactorLumaPre[k],
&v->UrgentBurstFactorChroma[k],
&v->UrgentBurstFactorChromaPre[k],
&v->NoUrgentLatencyHidingPre[k]);
}

2
drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
View File

@ -5189,7 +5189,7 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
v->DETBufferSizeCThisState[k],
&v->UrgentBurstFactorCursorPre[k],
&v->UrgentBurstFactorLumaPre[k],
&v->UrgentBurstFactorChroma[k],
&v->UrgentBurstFactorChromaPre[k],
&v->NotUrgentLatencyHidingPre[k]);
}

2
drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
View File

@ -5286,7 +5286,7 @@ void dml314_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_
v->DETBufferSizeCThisState[k],
&v->UrgentBurstFactorCursorPre[k],
&v->UrgentBurstFactorLumaPre[k],
&v->UrgentBurstFactorChroma[k],
&v->UrgentBurstFactorChromaPre[k],
&v->NotUrgentLatencyHidingPre[k]);
}

2
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
View File

@ -3333,7 +3333,7 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
/* Output */
&mode_lib->vba.UrgentBurstFactorCursorPre[k],
&mode_lib->vba.UrgentBurstFactorLumaPre[k],
&mode_lib->vba.UrgentBurstFactorChroma[k],
&mode_lib->vba.UrgentBurstFactorChromaPre[k],
&mode_lib->vba.NotUrgentLatencyHidingPre[k]);
}