diff options
| author | Hans Verkuil | 2018-07-11 15:29:09 +0200 |
|---|---|---|
| committer | Ville Syrjälä | 2018-07-13 16:58:19 +0200 |
| commit | 82e00d113639ac810568060b060462e0a7583c9d (patch) | |
| tree | 42b86cf0d02ef421ef5b69ac7264c39e0706a33f /drivers/gpu/drm/i915/intel_dp.c | |
| parent | drm-kms-helpers.rst: document the DP CEC helpers (diff) | |
| download | kernel-qcow2-linux-82e00d113639ac810568060b060462e0a7583c9d.tar.gz kernel-qcow2-linux-82e00d113639ac810568060b060462e0a7583c9d.tar.xz kernel-qcow2-linux-82e00d113639ac810568060b060462e0a7583c9d.zip | |
drm/i915: add DisplayPort CEC-Tunneling-over-AUX support
Implement support for this DisplayPort feature.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180711132909.25409-4-hverkuil@xs4all.nl
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 6ac6c8787dcf..b021801dbd48 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4495,6 +4495,9 @@ 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; @@ -4809,6 +4812,7 @@ 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 @@ -4816,6 +4820,7 @@ 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; @@ -5004,6 +5009,7 @@ 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); @@ -5016,13 +5022,20 @@ 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); } |