drm/amd/display: Don't set DSC for phantom pipes

[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>

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 3316c4a64901192dea2a222a978d30312ceb2b8b..8118cfc5b405672b84fe8cce9daa812b572277a0 100644 (file)
--- 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
 }
 
 /**