[PATCH 18/29] drm/amd/display: Don't check output BPP for phantom
Tom Chung
chiahsuan.chung at amd.com
Wed Nov 9 06:13:08 UTC 2022
From: Alvin Lee <Alvin.Lee2 at amd.com>
[Description]
- If we're enabling phantom pipe for a high
link rate display we could
fail DML on the phantom pipe since it's
set to virtual signal
- Therefore don't consider Output BPP for
phantom pipe
Reviewed-by: Dillon Varone <Dillon.Varone at amd.com>
Acked-by: Tom Chung <chiahsuan.chung at amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2 at amd.com>
---
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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 244fd15d24b4..7aaf67b464e0 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
@@ -2284,7 +2284,7 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
&& (mode_lib->vba.Output[k] == dm_dp || mode_lib->vba.Output[k] == dm_dp2p0
|| mode_lib->vba.Output[k] == dm_edp
|| mode_lib->vba.Output[k] == dm_hdmi)
- && mode_lib->vba.OutputBppPerState[i][k] == 0) {
+ && mode_lib->vba.OutputBppPerState[i][k] == 0 && (mode_lib->vba.UsesMALLForPStateChange[k] != dm_use_mall_pstate_change_phantom_pipe)) {
mode_lib->vba.LinkCapacitySupport[i] = false;
}
}
--
2.25.1
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