Depending on whether IdP is available in eduGAIN, following possibilities exist:
IdPs that are available in eduGAIN will be automatically integrated. Please refer to Requirements for IdPs integrated through eduGAIN for further specification on requirements. You can check if your IdP is registered at https://release-check.edugain.org/
IdPs that are not available in eduGAIN will be integrated on a request basis. Please refer to Requirements for directly integrated IdPs for further specification on requirements.