linux-kernel - Re: [PATCH v2 1/1] gpio: add sloppy logic analyzer using polling

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Message-ID: <YZuOGAxO5ZslW5vB@smile.fi.intel.com>
Date:   Mon, 22 Nov 2021 14:33:28 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] gpio: add sloppy logic analyzer using polling

On Mon, Nov 22, 2021 at 01:19:20PM +0100, Wolfram Sang wrote:

...

> > > > > +       if (ret < 0) {
> > > >
> > > > > +               dev_err(dev, "error naming the GPIOs: %d\n", ret);
> > > > > +               return ret;
> > > > > +       }
> > > >
> > > > Perhaps
> > > >
> > > >   return dev_err_probe() ?
> > >
> > > Reading strings from DT can be deferred? I don't think so.
> > 
> > There is a new development, i.e. the documentation for dev_err_probe()
> > is going to be amended to allow this. But I can't quickly find a patch
> > in mailing list with the related discussion.
> 
> I still don't get this one, so if there is new development and you have
> a pointer, I'd be glad to hear about it. Otherwise we can fix it
> incrementally later.

See 7065f92255bb ("driver core: Clarify that dev_err_probe() is OK even w/out
-EPROBE_DEFER").

-- 
With Best Regards,
Andy Shevchenko