[PATCH 00/10] PMU fixes + stability (GTA01 and GTA02) + GTA02 charger support

[Andy Green]

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Somebody in the thread at some point said:
> warmcat wrote:
>> The following series hopefully completes the PMU work for
>> GTA01 and GTA02.
> 
> Famous last words, 

- --->

> So it seems
> that either way should be fine.

Nope, single accesses caused the "INT# death" behaviour described... it
was pretty easy to reproduce here too since on yaking the cable CHGHALT
was generated slightly before USBREM -- after sitting there a while
yanking and reinserting the cable you could kill further notifications
with the last one serviced being CHGHALT.

Moving to atomic access -- read the 50606 datasheet, it says you must do
it atomically, the language in the 50633 one is inconsistent with itself
- -- solved this and I sat there for a couple of minutes spamming the
connector without trouble.

- -Andy
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