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| author | Hamza Mahfooz <hamza.mahfooz@amd.com> | 2022-08-04 14:06:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-16 18:14:32 -0400 |
| commit | 34f667634a0dcee26d9873ab1c819bdd6cdf485a (patch) | |
| tree | b2d18770bd25a8f46aa7632565797415f8dbc1af /drivers/gpu/drm/display | |
| parent | 33fa4f1df53076d0078be091d5a88d457de54936 (diff) | |
| download | linux-34f667634a0dcee26d9873ab1c819bdd6cdf485a.tar.bz2 | |
drm/dp_mst: add passthrough_aux to struct drm_dp_mst_port
Currently, there is no way to identify if DSC pass-through can be
enabled and what aux DSC pass-through requests ought to be sent to. So,
add a variable to struct drm_dp_mst_port that keeps track of the
aforementioned information.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/display')
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_mst_topology.c | 4 |
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; |