From: Hans Verkuil hans.verkuil@cisco.com
Implement support for this DisplayPort feature.
Signed-off-by: Hans Verkuil hans.verkuil@cisco.com Reviewed-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/intel_dp.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 16faea30114a..c3045262eba1 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4466,6 +4466,9 @@ intel_dp_short_pulse(struct intel_dp *intel_dp) DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); }
+ /* Handle CEC interrupts, if any */ + drm_dp_cec_irq(&intel_dp->aux); + /* defer to the hotplug work for link retraining if needed */ if (intel_dp_needs_link_retrain(intel_dp)) return false; @@ -4780,6 +4783,7 @@ intel_dp_set_edid(struct intel_dp *intel_dp) intel_connector->detect_edid = edid;
intel_dp->has_audio = drm_detect_monitor_audio(edid); + drm_dp_cec_set_edid(&intel_dp->aux, edid); }
static void @@ -4787,6 +4791,7 @@ intel_dp_unset_edid(struct intel_dp *intel_dp) { struct intel_connector *intel_connector = intel_dp->attached_connector;
+ drm_dp_cec_unset_edid(&intel_dp->aux); kfree(intel_connector->detect_edid); intel_connector->detect_edid = NULL;
@@ -4975,6 +4980,7 @@ static int intel_dp_connector_register(struct drm_connector *connector) { struct intel_dp *intel_dp = intel_attached_dp(connector); + struct drm_device *dev = connector->dev; int ret;
ret = intel_connector_register(connector); @@ -4987,13 +4993,20 @@ intel_dp_connector_register(struct drm_connector *connector) intel_dp->aux.name, connector->kdev->kobj.name);
intel_dp->aux.dev = connector->kdev; - return drm_dp_aux_register(&intel_dp->aux); + ret = drm_dp_aux_register(&intel_dp->aux); + if (!ret) + drm_dp_cec_register_connector(&intel_dp->aux, + connector->name, dev->dev); + return ret; }
static void intel_dp_connector_unregister(struct drm_connector *connector) { - drm_dp_aux_unregister(&intel_attached_dp(connector)->aux); + struct intel_dp *intel_dp = intel_attached_dp(connector); + + drm_dp_cec_unregister_connector(&intel_dp->aux); + drm_dp_aux_unregister(&intel_dp->aux); intel_connector_unregister(connector); }