Fully remove the MST connector from the atomic state, and remove the
early returns in check_*_state for MST connectors.
With atomic the state can be made consistent all the time.
Changes since v1:
- Remove the MST check in intel_connector_check_state too.
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselv...@gmail.com>
---
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 7747520bf9f6..dfe4407b0390 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6370,10 +6370,6 @@ static void intel_connector_check_state(struct
intel_connector *connector)
connector->base.base.id,
connector->base.name);
- /* there is no real hw state for MST connectors */
- if (connector->mst_port)
- return;
-
I915_STATE_WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
"wrong connector dpms state\n");
I915_STATE_WARN(connector->base.encoder != &encoder->base,
@@ -12751,13 +12747,6 @@ check_encoder_state(struct drm_device *dev)
encoder->base.crtc,
"connector's crtc doesn't match encoder crtc\n");
}
- /*
- * for MST connectors if we unplug the connector is gone
- * away but the encoder is still connected to a crtc
- * until a modeset happens in response to the hotplug.
- */
- if (!enabled && encoder->base.encoder_type ==
DRM_MODE_ENCODER_DPMST)
- continue;
I915_STATE_WARN(!!encoder->base.crtc != enabled,
"encoder's enabled state mismatch "
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c
b/drivers/gpu/drm/i915/intel_dp_mst.c
index 585f0a45b3f1..35f2eb59818a 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -448,6 +448,49 @@ static struct drm_connector
*intel_dp_add_mst_connector(struct drm_dp_mst_topolo
return connector;
}
+static void
+intel_dp_unbind_mst_connector(struct drm_device *dev,
+ struct drm_connector *connector)
+{
+ struct drm_atomic_state *state;
+ struct drm_connector_state *conn_state;
+ struct drm_crtc *crtc = connector->state->crtc;
+ int ret;
+
+ if (!crtc)
+ return;
+
+ state = drm_atomic_state_alloc(dev);
+ if (!state)
+ return;
+
+ state->acquire_ctx = dev->mode_config.acquire_ctx;
+
+ conn_state = drm_atomic_get_connector_state(state, connector);
+ ret = PTR_ERR_OR_ZERO(conn_state);
+ if (!ret)
+ ret = drm_atomic_set_crtc_for_connector(conn_state, NULL);
+
+ if (!ret)
+ ret = drm_atomic_add_affected_connectors(state, crtc);
+
+ if (!ret && !drm_atomic_connectors_for_crtc(state, crtc)) {
+ struct drm_crtc_state *crtc_state =
+ drm_atomic_get_existing_crtc_state(state, crtc);
+
+ crtc_state->active = false;
+ ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
+ }
+
+ if (!ret)
+ ret = drm_atomic_commit(state);
+
+ if (ret)
+ drm_atomic_state_free(state);
+
+ I915_STATE_WARN_ON(ret);
+}
+
static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
struct drm_connector *connector)
{
@@ -455,7 +498,7 @@ static void intel_dp_destroy_mst_connector(struct
drm_dp_mst_topology_mgr *mgr,
struct drm_device *dev = connector->dev;
/* need to nuke the connector */
drm_modeset_lock_all(dev);
- intel_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+ intel_dp_unbind_mst_connector(dev, connector);
drm_modeset_unlock_all(dev);
intel_connector->unregister(intel_connector);
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