From 41a02f090c5909a5e8a15fa6cd5eb47075bc7f26 Mon Sep 17 00:00:00 2001
From: Alvin Lee <Alvin.Lee2@amd.com>
Date: Fri, 5 Aug 2022 16:18:31 -0400
Subject: drm/amd/display: Don't set DSC for phantom pipes
Git-commit: 31ec699ac5d8d17c4f696888708bb6b2567dfcd4
Patch-mainline: v6.0-rc2
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
[Description]
Don't set DSC bit for phantom pipes, not
required since phantom pipe don't have
any actual output
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 3316c4a64901..8118cfc5b405 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -493,6 +493,7 @@ void dcn32_set_phantom_stream_timing(struct dc *dc,
phantom_stream->timing.v_front_porch +
phantom_stream->timing.v_sync_width +
phantom_bp;
+ phantom_stream->timing.flags.DSC = 0; // Don't need DSC for phantom timing
}
/**
--
2.38.1