On Wed, Jun 11, 2014 at 11:59:26AM +0100, Charles Keepax wrote: > On Mon, Jun 09, 2014 at 07:43:14PM +0100, Mark Brown wrote:
> > IIRC this was deliberately coded in this fashion on advice from the > > hardware engineers - there was more going on with that register than > > there might at first appear and some actual sync with the LDO. I > > believe there was some different process to follow (possibly just > > setting this mode all the time) when using an external regulator, though > > it's also possible the hardware guys were just unsure at the time. > I have had a good chat with the hardware engineers here and they > are pretty adamant that the only constraint here is that we > should never enable SUBSYS without 1.8V being supplied to the > core. OK, that sounds like the advice when the device was first produced was not accurate - might be worth checking your datasheets here. Might also be worth updating the commit log.
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