Both Ice Lake and Elkhart Lake (gen 11) support MST on all external connections except DDI A. Tiger Lake (gen 12) supports on all external connections.
Move the check to happen inside intel_dp_mst_encoder_init() and add specific platform checks. Signed-off-by: Lucas De Marchi <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp.c | 7 ++----- drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++-- 2 files changed, 15 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 0e45c61d7331..348a09890611 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -7268,11 +7268,8 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, intel_connector->get_hw_state = intel_connector_get_hw_state; /* init MST on ports that can support it */ - if (HAS_DP_MST(dev_priv) && !intel_dp_is_edp(intel_dp) && - (port == PORT_B || port == PORT_C || - port == PORT_D || port == PORT_F)) - intel_dp_mst_encoder_init(intel_dig_port, - intel_connector->base.base.id); + intel_dp_mst_encoder_init(intel_dig_port, + intel_connector->base.base.id); if (!intel_edp_init_connector(intel_dp, intel_connector)) { intel_dp_aux_fini(intel_dp); diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index c2bbba1effc1..8dcb578e6d01 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -654,15 +654,26 @@ intel_dp_mst_encoder_active_links(struct intel_digital_port *intel_dig_port) void intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_base_id) { + struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev); struct intel_dp *intel_dp = &intel_dig_port->dp; - struct drm_device *dev = intel_dig_port->base.base.dev; + enum port port = intel_dig_port->base.port; int ret; + if (!HAS_DP_MST(i915) || intel_dp_is_edp(intel_dp)) + return; + + if (INTEL_GEN(i915) == 11 && port == PORT_A) + return; + + if (INTEL_GEN(i915) < 11 && + port != PORT_B && port != PORT_C && port != PORT_D && port != PORT_F) + return; + intel_dp->mst_mgr.cbs = &mst_cbs; /* create encoders */ intel_dp_create_fake_mst_encoders(intel_dig_port); - ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, dev, + ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, &i915->drm, &intel_dp->aux, 16, 3, conn_base_id); if (ret) { intel_dp->can_mst = false; -- 2.23.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
