idk we'd need to reproduce it now.
I never tried without the status = "okay" (or "disable") line under idle states. Also "some time ago" could be kernel 4.4, 4.9, 4.14... there have been a few changes to the drivers over that time frame. Perhaps you did it after seeing this (I think it refers using an apq setting under scm firmware dts node rather than saw nodes BTW)?