RE: [PATCH v2 03/10] regulator: bd9571mwv: rid of using struct bd9571mwv

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Hi Matti-san,

> From: Vaittinen, Matti, Sent: Wednesday, December 16, 2020 3:00 PM
> On Wed, 2020-12-16 at 02:13 +0000, Yoshihiro Shimoda wrote:
> > Hi Geert-san, Matti-san,
> >
> > > From: Geert Uytterhoeven, Sent: Wednesday, December 16, 2020 1:13
> > > AM
> > > On Tue, Dec 15, 2020 at 5:02 PM Geert Uytterhoeven <
> > > geert@xxxxxxxxxxxxxx> wrote:
> > > > On Fri, Dec 11, 2020 at 3:03 PM Vaittinen, Matti
> > > > <Matti.Vaittinen@xxxxxxxxxxxxxxxxx> wrote:
> > > > > On Fri, 2020-12-11 at 20:27 +0900, Yoshihiro Shimoda wrote:
> > <snip>
> > > > > > --- a/drivers/regulator/bd9571mwv-regulator.c
> > > > > > +++ b/drivers/regulator/bd9571mwv-regulator.c
> > > > > > @@ -17,7 +17,7 @@
> > > > > >  #include <linux/mfd/bd9571mwv.h>
> > > > > >
> > > > > >  struct bd9571mwv_reg {
> > > > > > -     struct bd9571mwv *bd;
> > > > > > +     struct regmap *regmap;
> > > > >
> > > > > As a 'nit':
> > > > > I might consider adding the dev pointer here to avoid extra
> > > > > argument
> > > > > with all the bkup_mode functions below. (just pass this struct
> > > > > and
> > > > > mode). But that's only my preference - feel free to ignore this
> > > > > comment
> > > > > if patch is Ok to Mark, Marek & Others :)
> > > >
> > > > Struct regmap already contains a struct device pointer, but
> > > > that's internal
> > > > to regmap.
> > > >
> > > > Perhaps adding a regmap_device() helper to retrieve the device
> > > > pointer
> > > > might be worthwhile?
> > >
> > > -EEXISTS ;-)
> > >
> > > struct device *regmap_get_device(struct regmap *map)
> >
> > Thank you for finding this. I'll fix this patch.
> 
> Just a small reminder that this device is probably the MFD device, not
> the device created for regulator driver. (Regmap is created for MFD).
> For prints this only means we're issuing prints as if MFD device
> generated them, right? I'm not sure it is the best approach - but I'll
> leave this to Mark & others to judge :)

Thank you for the comment. You're correct. regmap_get_device() is
the MFD device. Also, original code had used the MFD device as
"dev_err(bd->dev, ...)". So, printk behavior is the same as before :)

Best regards,
Yoshihiro Shimoda





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