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.
Thanks to Sivakumar Thulasimani for the idea of using
drm_atomic_helper_set_config.
Changes since v1:
- Remove the MST check in intel_connector_check_state too.
Changes since v2:
- Use drm_atomic_helper_set_config.
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Cc: Sivakumar Thulasimani <sivakumar.thulasim...@intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 11 -----------
drivers/gpu/drm/i915/intel_dp_mst.c | 13 ++++++++++++-
2 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 5e40b7e7013a..77b4da7e698c 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,
@@ -12749,13 +12745,6 @@ 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 ff01569158ea..91ad17110c2f 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -467,9 +467,20 @@ static void intel_dp_destroy_mst_connector(struct
drm_dp_mst_topology_mgr *mgr,
{
struct intel_connector *intel_connector = to_intel_connector(connector);
struct drm_device *dev = connector->dev;
+
/* need to nuke the connector */
drm_modeset_lock_all(dev);
- intel_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+ if (connector->state->crtc) {
+ struct drm_mode_set set;
+ int ret;
+
+ memset(&set, 0, sizeof(set));
+ set.crtc = connector->state->crtc,
+
+ ret = drm_atomic_helper_set_config(&set);
+
+ WARN(ret, "Disabling mst crtc failed with %i\n", ret);
+ }
drm_modeset_unlock_all(dev);
intel_connector->unregister(intel_connector);
--
2.1.0
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