The XPm_RequestSuspend API was originally
intended to support cross-subsystem suspend and resume functionality. However, the same
functionality can be achieved using the XPm_ForcePowerDown API by passing a valid subsystem ID, allowing the
subsystem to be suspended or resumed. As both APIs serve the same purpose, the XPm_RequestSuspend API is deprecated starting from the
2025.2 release and use XPm_ForcePowerDown API
instead.