diff options
| author | Lyude Paul <lyude@redhat.com> | 2021-04-23 14:42:53 -0400 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2021-04-27 18:43:41 -0400 |
| commit | eaf8974ea2d9c3ccad3af582df9ff74360b3e3d9 (patch) | |
| tree | c5526324acc064f412ca11a64c92f33cef005e91 | |
| parent | 64bf1491137db099e8873b6755c7565207f676ea (diff) | |
| download | linux-eaf8974ea2d9c3ccad3af582df9ff74360b3e3d9.tar.bz2 | |
drm/bridge/cdns-mhdp8546: Register DP aux channel with userspace
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>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-2-lyude@redhat.com
Reviewed-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 11 |
1 files changed, 10 insertions, 1 deletions
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; |