[asus-port] Re: [Kernel-discuss] [RFC] PXA27x core voltage change sequencer

From: pHilipp Zabel <philipp.zabel_at_gmail.com>
Date: Wed, 6 Dec 2006 16:56:12 +0100

On 12/6/06, Anton Vorontsov <cbou_at_mail.ru> wrote:
> Hi all,
>
> It seems like we already have 3 devices which have MAX158xx PMICs:
> a730, hx4700 and some HTC one. I think it's time to unify things.
> Patch with mach-unspecific driver attached. Tested on hx4700.

Oh joy! :-)
I'll test it on the magician, which has a MAX1587A. Should it work all the same?
This depends on frequency changing support, though, which is not yet
in mainline...

> I'm asking for comments and suggestions, especially about files
> names and placement. :-)
>
> And...
>
> Michal, I see that a730 not using sequencer, but fully capable I2C
> controller. Is it mandatory for the a730, or you've just using it
> because it's a bit faster (for sending one byte :-). If it's really
> mandatory for the a730, then we should write three another drivers:
>
> - drivers/i2c/busses/i2c-pwr-pxa.c (using drivers/i2c/busses/i2c-pxa.c
> as reference)
> - drivers/i2c/chips/max158xx.c
> - and some glue driver, which using two above plus hooks onto cpufreq
> notifier.
>
> I see no need for doing this if solution with less entropy exists.
>
> Thanks!
>
> -- Anton (irc: bd2)
>
>
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regards
Philipp
Received on Wed Dec 06 2006 - 10:56:18 EST

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