From: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
This patch has been added to the 4.1 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 20fae983c6667d038e810c618e3340946b8dc506 ]
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.lankhorst@xxxxxxxxxxxxxxx>
Cc: Sivakumar Thulasimani <sivakumar.thulasimani@xxxxxxxxx>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
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 b103773..5632373 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5609,10 +5609,6 @@ 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,
@@ -11225,13 +11221,6 @@ check_encoder_state(struct drm_device *dev)
if (connector->base.dpms != DRM_MODE_DPMS_OFF)
active = true;
}
- /*
- * 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 88c5575..463e16d 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -451,9 +451,20 @@ 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);
--
2.5.0
--
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