[PATCH 1/7] mfd: twl4030-power: Fix hang on reboot if sleep configuration was loaded earlier

[Lee Jones]

> > > > > Looks like we can still hit the issue of wrong load order of
> > > > > twl4030 configuration. If we have a sleep configuration loaded,
> > > > > and do a warm reset, the device can hang while initializing the
> > > > > wakeup12 sequence. We do have a warning message about wrong order
> > > > > of twl4030 configuration, but in this case it does not help as
> > > > > the sleep configuration was loaded during the previous boot and
> > > > > the state of twl4030 is maintained throughout the warm reset.
> > > > > 
> > > > > Fix the issue by clearing any existing sleep configuration
> > > > > before we load the warm reset configuration.
> > > > > 
> > > > > Cc: Peter Ujfalusi <peter.ujfalusi at ti.com>
> > > > > Signed-off-by: Tony Lindgren <tony at atomide.com>
> > > > > ---
> > > > >  drivers/mfd/twl4030-power.c | 6 ++++++
> > > > >  1 file changed, 6 insertions(+)
> > > > 
> > > > Can't vouch for the semantics of the patch, but the code looks good.
> > > > 
> > > >   Acked-by: Lee Jones <lee.jones at linaro.org>
> > > > 
> > > > Can I just apply this, or would you like Peter to review it first?
> > > 
> > > As far as I'm concerned you can go ahead an apply, it's been
> > > floating on the list for a while and Peter is probably busy
> > > with other things.
> > 
> > No problem.  Just a couple of things for you to look at in the other
> > patches, then we can go ahead and apply for v3.16.
> 
> OK thanks yeah saw those. Will fix them up and test today. Then
> maybe you can apply them to the immutable branch we set earlier
> or I can send you a pull request against that branch whichever
> you prefer.

Probably be easier if I update and re-tag the original one.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
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