[PATCH] PMU charging notification

[Andy Green]

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Somebody in the thread at some point said:
| On Tuesday 01 July 2008 20:58:28 you wrote:
|
|> Holger what does this stuff depend on, it's completely standalone or we
|> need the other patches you sent before, my charging tracking patch...?
|
| these patches should apply to your "andy" branch.

They applied and I sent them into stable just now, but in fact I don't
have much idea how to test them.  I added a small patch to defeat the
direct LED driving.

Do they fire the LED triggers from battery class then?  Can you give
some things to do in Ash that exercise it and hopefully emulate lighting
the AUX led since I got used to it?

You mentioned that bq27000 is "cached" or "slow" or something, that is
actually the bq27000 itself, it is very slow to update its internal
registers, partly due to running at a slow internal clock I guess and
partly for averaging.  It says in the datasheet that the fastest
register update is 1.2s interval and I know from spamming it looking at
current that one is updated even slower at the chip.

- -Andy
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