Re: [PATCH 3/3] mfd: mc13xxx: Simplify "probe" & "remove"

["Alexander Shiyan" <shc_work@mail.ru>]

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> > This patch simplifies "probe" and "remove" functions by moving
> > some initialization code in the driver core.
> > 
> > Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
> > ---
> >  drivers/mfd/mc13xxx-core.c | 36 +++++++++++++++++-------------------
> >  drivers/mfd/mc13xxx-i2c.c  | 18 ++++--------------
> >  drivers/mfd/mc13xxx-spi.c  | 19 ++++++-------------
> >  drivers/mfd/mc13xxx.h      |  6 ++----
> >  4 files changed, 29 insertions(+), 50 deletions(-)
> > 
> > diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
> > index b0c7cb0..06e64b6 100644
> > --- a/drivers/mfd/mc13xxx-core.c
> > +++ b/drivers/mfd/mc13xxx-core.c
> 
> <snip>
> 
> > -	ret = request_threaded_irq(irq, NULL, mc13xxx_irq_thread,
> > +	ret = request_threaded_irq(mc13xxx->irq, NULL, mc13xxx_irq_thread,
> >  			IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13xxx", mc13xxx);
> 
> Please use devm_* managed resources, then you can remove the free_irq().

Using devm-* is not possible at this time since we need to avoid interrupts before
removing mc13xxx childs.
This could be converted to use devm-* functions once we migrate to IRQ domains.
I work on this now.

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