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path: root/drivers/gpu/drm/display/drm_dp_mst_topology.c
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Diffstat (limited to 'drivers/gpu/drm/display/drm_dp_mst_topology.c')
-rw-r--r--drivers/gpu/drm/display/drm_dp_mst_topology.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
index 57e65423e50d..3ffa0e893617 100644
--- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
@@ -5908,8 +5908,10 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port)
/* Enpoint decompression with DP-to-DP peer device */
if ((endpoint_dsc & DP_DSC_DECOMPRESSION_IS_SUPPORTED) &&
(endpoint_fec & DP_FEC_CAPABLE) &&
- (upstream_dsc & 0x2) /* DSC passthrough */)
+ (upstream_dsc & DP_DSC_PASSTHROUGH_IS_SUPPORTED)) {
+ port->passthrough_aux = &immediate_upstream_port->aux;
return &port->aux;
+ }
/* Virtual DPCD decompression with DP-to-DP peer device */
return &immediate_upstream_port->aux;