I don't think there is any reason to think that the "c6 mode" option had anything to do with "typical idle current". Its name implied that it disabled C6 states, which it actually didn't (according to the Zenstates script).
I don't think there is any reason to think that the "c6 mode" option had anything to do with "typical idle current". Its name implied that it disabled C6 states, which it actually didn't (according to the Zenstates script).