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drm/i915: Update atomic state when removing mst connector, v3. 

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@linux.intel.com>
Cc: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Maarten Lankhorst 2015-08-06 13:47:36 +02:00 committed by Daniel Vetter
parent ee165b1a6e
commit 20fae983c6
2 changed files with 12 additions and 12 deletions
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11
drivers/gpu/drm/i915/intel_display.c
View File

@ -6372,10 +6372,6 @@ 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,
@ -12748,13 +12744,6 @@ 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 "

13
drivers/gpu/drm/i915/intel_dp_mst.c
View File

@ -453,9 +453,20 @@ 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);