Re: N900 USB fix (Was: Re: [PATCH/RFC 2/6] OMAP2+: PM: move runtime PM implementation to use device power domains)

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On Fri, 10 Jun 2011 09:57:57 +0300
Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> > A fix has been posted (and pull req sent to Tony.)  Can you try my
> > for_3.0/pm-fixes branch which fixes this problem?  It's available in my
> > git tree:
> > 
> >   git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm.git
> 
> Hi, Kevin!
> 
> Many thanks to you! :-) The patches indeed fix the problem. I seem to
> have used for_3.0/pm-fixes-2 branch, though. I guess that doesn't really
> matter. :-)
> 
I was struggling also with non-working musb on N900. I traced primary
breakage to the same commit than Sakari. On top of that commit the
Kevin's fix made it working but it didn't work on top of 3.0-rc2 while
beagle was ok.

I bisected another issue to commit 10299e2 ("ARM: RX-51: Enable isp1704
power on/off").

3.0-rc2 works if I enable the CONFIG_CHARGER_ISP1704=y but do we
actually need to drive the ISP1704 into reset in
board-rx51-peripherals.c: rx51_charger_init as it breaks the musb when
the ISP1704 driver is missing and otherwise rx51_charger_set_power
should take care of ISP1704 reset control when the driver is there?

-- 
Jarkko
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