One listener serves several Real Application Clusters instances on the same node. The listener uses Oracle's transparent application failover (TAF) and load balancing to distribute client connections across all Real Application Clusters instances. The listener cannot fail over.
In this situation, configure the listener resource as follows:
Configure the listener resource in its own resource group.
Ensure that the listener's resource group is mastered on only one node.
Create a dependency between the listener's resource group and RAC servers' resource groups.