Just adds some missing calls to drm_dp_aux_register()/drm_dp_aux_unregister() for when we attach/detach the bridge.
Signed-off-by: Lyude Paul lyude@redhat.com --- drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c index 01e95466502a..49e4c340f1de 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c @@ -1719,10 +1719,14 @@ static int cdns_mhdp_attach(struct drm_bridge *bridge,
dev_dbg(mhdp->dev, "%s\n", __func__);
+ ret = drm_dp_aux_register(&mhdp->aux); + if (ret < 0) + return ret; + if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) { ret = cdns_mhdp_connector_init(mhdp); if (ret) - return ret; + goto aux_unregister; }
spin_lock(&mhdp->start_lock); @@ -1738,6 +1742,9 @@ static int cdns_mhdp_attach(struct drm_bridge *bridge, mhdp->regs + CDNS_APB_INT_MASK);
return 0; +aux_unregister: + drm_dp_aux_unregister(&mhdp->aux); + return ret; }
static void cdns_mhdp_configure_video(struct cdns_mhdp_device *mhdp, @@ -2082,6 +2089,8 @@ static void cdns_mhdp_detach(struct drm_bridge *bridge)
dev_dbg(mhdp->dev, "%s\n", __func__);
+ drm_dp_aux_unregister(&mhdp->aux); + spin_lock(&mhdp->start_lock);
mhdp->bridge_attached = false;