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path: root/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
index 33eab80e89a8..38fa7441df51 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
@@ -157,6 +157,17 @@ bool is_dp2p0_output_encoder(const struct pipe_ctx *pipe_ctx)
{
/* If this assert is hit then we have a link encoder dynamic management issue */
ASSERT(pipe_ctx->stream_res.hpo_dp_stream_enc ? pipe_ctx->link_res.hpo_dp_link_enc != NULL : true);
+
+ if (pipe_ctx->stream == NULL)
+ return false;
+ /* Count MST hubs once by treating only 1st remote sink in topology as an encoder */
+ if (pipe_ctx->stream->link && pipe_ctx->stream->link->remote_sinks[0]) {
+ return (pipe_ctx->stream_res.hpo_dp_stream_enc &&
+ pipe_ctx->link_res.hpo_dp_link_enc &&
+ dc_is_dp_signal(pipe_ctx->stream->signal) &&
+ (pipe_ctx->stream->link->remote_sinks[0] == pipe_ctx->stream->sink));
+ }
+
return (pipe_ctx->stream_res.hpo_dp_stream_enc &&
pipe_ctx->link_res.hpo_dp_link_enc &&
dc_is_dp_signal(pipe_ctx->stream->signal));