Messages in this thread Patch in this message | | | From | Lyude Paul <> | Subject | [PATCH v2 03/20] drm/bridge/cdns-mhdp8546: Register DP aux channel with userspace | Date | Fri, 26 Mar 2021 16:37:50 -0400 |
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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 989a05bc8197..d966a33743b5 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c @@ -1674,10 +1674,14 @@ 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); @@ -1693,6 +1697,9 @@ 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, @@ -2025,6 +2032,8 @@ 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; -- 2.30.2
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