drm/bridge/analogix/anx78xx: Setup encoder before registering connector

Since encoder mappings for connectors are exposed to userspace, we should
be attaching the encoder before exposing the connector to userspace. Just a
drive-by fix for an issue I noticed while fixing up usages of
drm_dp_aux_init()/drm_dp_aux_register() across the tree.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210219215326.2227596-9-lyude@redhat.com

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
index ec4607d..338dd85 100644 (file)
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
@@ -924,12 +924,6 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge,
        drm_connector_helper_add(&anx78xx->connector,
                                 &anx78xx_connector_helper_funcs);
 
-       err = drm_connector_register(&anx78xx->connector);
-       if (err) {
-               DRM_ERROR("Failed to register connector: %d\n", err);
-               return err;
-       }
-
        anx78xx->connector.polled = DRM_CONNECTOR_POLL_HPD;
 
        err = drm_connector_attach_encoder(&anx78xx->connector,
@@ -939,6 +933,12 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge,
                return err;
        }
 
+       err = drm_connector_register(&anx78xx->connector);
+       if (err) {
+               DRM_ERROR("Failed to register connector: %d\n", err);
+               return err;
+       }
+
        return 0;
 }