drm/nouveau/disp: add connector class

Will be used to provide more solid driver interfaces in general, but
the immediate motivation is work towards fixing issues with handling
hotplug/DP IRQ events.

Its use is currently limited to where we support non-polled hotplug
already (ie. any GPU since NV40ish era, where our DCB handling works
well enough), until that gets cleaned up someday.

v2:
- use ?: (lyude)

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 22b83a6577eb..254996845575 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -404,6 +404,7 @@ nouveau_connector_destroy(struct drm_connector *connector)
 		drm_dp_cec_unregister_connector(&nv_connector->aux);
 		kfree(nv_connector->aux.name);
 	}
+	nvif_conn_dtor(&nv_connector->conn);
 	kfree(connector);
 }
 
@@ -1388,6 +1389,15 @@ nouveau_connector_create(struct drm_device *dev,
 	drm_connector_init(dev, connector, funcs, type);
 	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
 
+	if (nv_connector->dcb && (disp->disp.conn_mask & BIT(nv_connector->index))) {
+		ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index,
+				     &nv_connector->conn);
+		if (ret) {
+			kfree(nv_connector);
+			return ERR_PTR(ret);
+		}
+	}
+
 	connector->funcs->reset(connector);
 	nouveau_conn_attach_properties(connector);