On Wed, Feb 26, 2025 at 03:56:26PM +0200, Jani Nikula wrote:
> We create the stream encoders and attach connectors for each pipe we
> have. As the number of pipes has increased, we've failed to update the
> topology manager maximum number of payloads to match that. Bump up the
> max stream count to match number of pipes, enabling the fourth stream on
> platforms that support four pipes.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Imre Deak <imre.deak@xxxxxxxxx>
> Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 167e4a70ab12..822218d8cfd4 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -1896,7 +1896,8 @@ intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_base_id)
> /* create encoders */
> mst_stream_encoders_create(dig_port);
> ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, display->drm,
> - &intel_dp->aux, 16, 3, conn_base_id);
> + &intel_dp->aux, 16,
> + INTEL_NUM_PIPES(display), conn_base_id);
> if (ret) {
> intel_dp->mst_mgr.cbs = NULL;
> return ret;
> --
> 2.39.5
--
Ville Syrjälä
Intel
