linux-kernel - Re: [PATCH 2/6] regulator: arizona-ldo1: Move setup processing from arizona-core

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Message-ID: <20140415131054.GB27294@opensource.wolfsonmicro.com>
Date:	Tue, 15 Apr 2014 14:10:54 +0100
From:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	broonie@...nel.org, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, rob@...dley.net, sameo@...ux.intel.com,
	lgirdwood@...il.com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] regulator: arizona-ldo1: Move setup processing
	from arizona-core

On Tue, Apr 15, 2014 at 11:12:00AM +0100, Lee Jones wrote:
> On Tue, 01 Apr 2014, Charles Keepax wrote:
> 
> > It is more idiomatic to process things relating to the regulator in its
> > driver. This patch moves both processing of device tree relating to the
> > regulator and checking if the regulator is external from arizona-core
> > into the regulator driver.
> > 
> > Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> > ---
> >  drivers/mfd/arizona-core.c       |   12 +++---------
> >  drivers/regulator/arizona-ldo1.c |   32 ++++++++++++++++++++++++++++++++
> >  2 files changed, 35 insertions(+), 9 deletions(-)
> 
> [...]
> 
> > diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
> > index b1033d3..211af83 100644
> > --- a/drivers/regulator/arizona-ldo1.c
> > +++ b/drivers/regulator/arizona-ldo1.c
> > @@ -178,6 +178,22 @@ static const struct regulator_init_data arizona_ldo1_default = {
> >  	.num_consumer_supplies = 1,
> >  };
> >  
> > +#ifdef CONFIG_OF
> > +static int arizona_ldo1_of_get_pdata(struct arizona *arizona)
> > +{
> > +	struct arizona_pdata *pdata = &arizona->pdata;
> > +
> > +	arizona_of_get_named_gpio(arizona, "wlf,ldoena", true, &pdata->ldoena);
> > +
> > +	return 0;
> > +}
> > +#else
> > +static inline int arizona_ldo1_of_get_pdata(struct arizona *arizona)
> > +{
> > +	return 0;
> > +}
> > +#endif
> > +
> 
> I think "if (IS_ENABLED(CONFIG_OF))" is preferred now, but I guess
> that's up to Mark.

I am happy to respin if this is preferred.

Thanks,
Charles
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