linux-kernel - Re: [PATCH v5 3/5] iio: adc: ad7949: add support for internal vref

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Message-Id: <CDG4ONJVGKQ9.1BNDI32KIK6R9@shaak>
Date:   Tue, 10 Aug 2021 16:51:21 -0400
From:   "Liam Beguin" <liambeguin@...il.com>
To:     "Andy Shevchenko" <andy.shevchenko@...il.com>
Cc:     "Jonathan Cameron" <jic23@...nel.org>,
        "Lars-Peter Clausen" <lars@...afoo.de>,
        "Michael Hennerich" <Michael.Hennerich@...log.com>,
        "Charles-Antoine Couret" <charles-antoine.couret@...ensium.com>,
        Nuno Sá <Nuno.Sa@...log.com>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        "linux-iio" <linux-iio@...r.kernel.org>,
        "devicetree" <devicetree@...r.kernel.org>,
        "Rob Herring" <robh+dt@...nel.org>
Subject: Re: [PATCH v5 3/5] iio: adc: ad7949: add support for internal vref

On Tue Aug 10, 2021 at 3:55 PM EDT, Andy Shevchenko wrote:
> On Tue, Aug 10, 2021 at 10:46 PM Liam Beguin <liambeguin@...il.com>
> wrote:
> > On Tue Aug 10, 2021 at 8:15 AM EDT, Andy Shevchenko wrote:
> > > On Mon, Aug 9, 2021 at 1:50 AM Liam Beguin <liambeguin@...il.com> wrote:
> > > > On Sun Aug 8, 2021 at 12:36 PM EDT, Jonathan Cameron wrote:
> > > > > On Sat, 7 Aug 2021 21:56:57 -0400
> > > >         ret = fwnode_property_read_u32(child, "adi,internal-ref-microvolt", &tmp);
> > > >         if (ret == -EINVAL && mode & AD7949_CFG_VAL_REF_EXTERNAL) {
> > > >                 continue;
> > >
> > > >         } else if (ret < 0) {
>
> > > Side note, redundant 'else'
> >
> > Are you asking to add an 'else' statement?
> >
> > because, unless I'm mistaken, in this case ret can have other negative values
> > that we want to catch with this 'else if'.
>
> You lost me, I have no idea what "to add" and "other" mean here. No, I
> asked to remove it. It's redundant.
>

Oh, I see what you meant now. I'll fix it. Thanks!

Liam

> > > >                 dev_err(dev, "invalid voltage reference in %pfw\n", child);
> > > >                 fwnode_handle_put(child);
> > > >                 return ret;
> > > >         }
>
> --
> With Best Regards,
> Andy Shevchenko