Re: [PATCH v3 14/14] iio: hmc425a: simplify using devm_regulator_get_enable()

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On Tue, 30 Aug 2022 13:55:38 +0000
"Sa, Nuno" <Nuno.Sa@xxxxxxxxxx> wrote:

> > -----Original Message-----
> > From: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
> > Sent: Tuesday, August 30, 2022 3:00 PM
> > To: Sa, Nuno <Nuno.Sa@xxxxxxxxxx>; Matti Vaittinen
> > <matti.vaittinen@xxxxxxxxxxxxxxxxx>
> > Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>; Hennerich, Michael
> > <Michael.Hennerich@xxxxxxxxxx>; Jonathan Cameron
> > <jic23@xxxxxxxxxx>; linux-iio@xxxxxxxxxxxxxxx; linux-
> > kernel@xxxxxxxxxxxxxxx
> > Subject: Re: [PATCH v3 14/14] iio: hmc425a: simplify using
> > devm_regulator_get_enable()
> > 
> > [External]
> > 
> > On 8/30/22 14:49, Sa, Nuno wrote:  
> > >  
> > >> From: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
> > >> Sent: Friday, August 19, 2022 9:21 PM
> > >> To: Matti Vaittinen <mazziesaccount@xxxxxxxxx>; Matti Vaittinen
> > >> <matti.vaittinen@xxxxxxxxxxxxxxxxx>
> > >> Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>; Hennerich, Michael
> > >> <Michael.Hennerich@xxxxxxxxxx>; Jonathan Cameron
> > >> <jic23@xxxxxxxxxx>; linux-iio@xxxxxxxxxxxxxxx; linux-
> > >> kernel@xxxxxxxxxxxxxxx
> > >> Subject: [PATCH v3 14/14] iio: hmc425a: simplify using
> > >> devm_regulator_get_enable()
> > >>
> > >> [External]
> > >>
> > >> Drop open-coded pattern: 'devm_regulator_get(),  
> > regulator_enable(),  
> > >> add_action_or_reset(regulator_disable)' and use the
> > >> devm_regulator_get_enable() and drop the pointer to the  
> > regulator.  
> > >> This simplifies code and makes it less tempting to add manual  
> > control  
> > >> for the regulator which is also controlled by devm.
> > >>
> > >> Signed-off-by: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
> > >>
> > >> ---  
> > >
> > > Acked-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
> > >
> > > (I see that in this patch you are not using dev_err_probe(). Maybe  
> > some  
> > > consistency in the series and where applicable would be appropriate  
> > :))
> > 
> > I don't think the driver did originally print an error if regulator get
> > or enable failed. I didn't want to add any new prints - just converted
> > the existing ones to use dev_err_probe(). I believe adding new prints
> > would've been somewhat unrelated change :)
> >   
> 
> Ahh that makes sense. I failed to see the print that you were replacing
> in the ad7606 patch...
> 
Applied to the togreg branch of iio.git though for now that's just pushed
out as testing.

As I mentioned on an earlier patch I forgot these existed and was about
to duplicate some of the work..  Anyhow, we only overlapped on a few
patches so I'll send the rest of my set out shortly.

There are probably other cases still in IIO but they are fiddly to grep
for!

Jonathan
> - Nuno Sá





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