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authorLucas De Marchi <lucas.demarchi@intel.com>2019-10-10 18:09:03 -0700
committerLucas De Marchi <lucas.demarchi@intel.com>2019-10-18 17:28:12 -0700
commit10d987fd1b7baceaafa78d805e71427ab735b4e4 (patch)
tree3420ba16c6456d1e858dde59961ad10e2a624f27 /drivers/gpu/drm/i915
parent327f8d8c336d2f7a037e26cdbd7f372d993a138f (diff)
downloadlinux-10d987fd1b7baceaafa78d805e71427ab735b4e4.tar.bz2
drm/i915: fix port checks for MST support on gen >= 11
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. v2: Replace != with == checks for ports on gen < 11 (Ville) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191015164029.18431-3-lucas.demarchi@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c7
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_mst.c22
2 files changed, 18 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 3792d143bea9..3696623ce443 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -7468,11 +7468,8 @@ 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 2203be28ea01..bbcab27644dc 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -655,21 +655,31 @@ intel_dp_mst_encoder_active_links(struct intel_digital_port *intel_dig_port)
int
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;
- intel_dp->can_mst = true;
+ if (!HAS_DP_MST(i915) || intel_dp_is_edp(intel_dp))
+ return 0;
+
+ if (INTEL_GEN(i915) < 12 && port == PORT_A)
+ return 0;
+
+ if (INTEL_GEN(i915) < 11 && port == PORT_E)
+ return 0;
+
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;
+ if (ret)
return ret;
- }
+
+ intel_dp->can_mst = true;
+
return 0;
}