[ironic][power] Anyone using PReP partitioning support?

Greetings Power folks! The Ironic project is curious if anyone is using PReP partitioning support? Specifically Ironic has long had a code path to manage creation of the PReP partition for booting power hardware as part of the partition image path code, but as time has gone on we're unsure if anyone is actively using this code path on newer versions of Ironic, coupled with the general decline of partition image usage. If anyone is using Power with newer versions of Ironic, please let us know if you're using partition images with Ironic, thus using PReP partitions. Specifically we're curious because we have a discussion topic which has been raised for the upcoming PTG. Thanks! -Julia