drm/msm: Attach assigned encoder to eDP and DSI connectors

drm_mode_connector_attach_encoder() function call is missing
during eDP and DSI connector initialization. As a result,
no encoder is returned by DRM_IOCTL_MODE_GETCONNECTOR system
call. This change is to fix this issue.

Signed-off-by: Hai Li <[e-mail]>

drivers/gpu/drm/msm/dsi/dsi.c

···
 		goto fail;
 	}
 
+	for (i = 0; i < MSM_DSI_ENCODER_NUM; i++) {
+		encoders[i]->bridge = msm_dsi->bridge;
+		msm_dsi->encoders[i] = encoders[i];
+	}
+
 	msm_dsi->connector = msm_dsi_manager_connector_init(msm_dsi->id);
 	if (IS_ERR(msm_dsi->connector)) {
 		ret = PTR_ERR(msm_dsi->connector);
 		dev_err(dev->dev, "failed to create dsi connector: %d\n", ret);
 		msm_dsi->connector = NULL;
 		goto fail;
-	}
-
-	for (i = 0; i < MSM_DSI_ENCODER_NUM; i++) {
-		encoders[i]->bridge = msm_dsi->bridge;
-		msm_dsi->encoders[i] = encoders[i];
 	}
 
 	priv->bridges[priv->num_bridges++]       = msm_dsi->bridge;

drivers/gpu/drm/msm/dsi/dsi_manager.c

···
 	struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
 	struct drm_connector *connector = NULL;
 	struct dsi_connector *dsi_connector;
-	int ret;
+	int ret, i;
 
 	dsi_connector = devm_kzalloc(msm_dsi->dev->dev,
 				sizeof(*dsi_connector), GFP_KERNEL);
···
 	ret = drm_connector_register(connector);
 	if (ret)
 		goto fail;
+
+	for (i = 0; i < MSM_DSI_ENCODER_NUM; i++)
+		drm_mode_connector_attach_encoder(connector,
+						msm_dsi->encoders[i]);
 
 	return connector;
 

drivers/gpu/drm/msm/edp/edp_connector.c

···
 	if (ret)
 		goto fail;
 
+	drm_mode_connector_attach_encoder(connector, edp->encoder);
+
 	return connector;
 
 fail: