linux-kernel - Re: [PATCH v2] gpiolib: Pass consumer device through to core in devm_fwnode_gpiod_get

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Message-ID: <CAMRc=Meh4LCqdfuVhp89Xb=QVWt13a-Ynp+8PPvNEyykvUsnug@mail.gmail.com>
Date: Wed, 28 Feb 2024 22:37:24 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Andy Shevchenko <andriy.shevchenko@...el.com>
Cc: Stephen Boyd <swboyd@...omium.org>, Linus Walleij <linus.walleij@...aro.org>, 
	linux-kernel@...r.kernel.org, patches@...ts.linux.dev, 
	linux-gpio@...r.kernel.org, Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH v2] gpiolib: Pass consumer device through to core in devm_fwnode_gpiod_get_index()

On Wed, Feb 28, 2024 at 10:35 PM Andy Shevchenko
<andriy.shevchenko@...el.com> wrote:
>
> On Wed, Feb 28, 2024 at 10:28:07PM +0100, Bartosz Golaszewski wrote:
> > On Wed, Feb 28, 2024 at 7:57 PM Andy Shevchenko
> > <andriy.shevchenko@...el.com> wrote:
> > > On Thu, Feb 22, 2024 at 10:52:53PM -0800, Stephen Boyd wrote:
> > > > This devm API takes a consumer device as an argument to setup the devm
> > > > action, but throws it away when calling further into gpiolib. This leads
> > > > to odd debug messages like this:
> > > >
> > > >  (NULL device *): using DT '/gpio-keys/switch-pen-insert' for '(null)' GPIO lookup
> > > >
> > > > Let's pass the consumer device down, by directly calling what
> > > > fwnode_gpiod_get_index() calls but pass the device used for devm. This
> > > > changes the message to look like this instead:
> > > >
> > > >  gpio-keys gpio-keys: using DT '/gpio-keys/switch-pen-insert' for '(null)' GPIO lookup
> > > >
> > > > Note that callers of fwnode_gpiod_get_index() will still see the NULL
> > > > device pointer debug message, but there's not much we can do about that
> > > > because the API doesn't take a struct device.
> > >
> > > Have you seen this?
> > > https://lore.kernel.org/r/20231019173457.2445119-1-andriy.shevchenko@linux.intel.com
> >
> > Clearly yes as I queued the first one in that series. The rest did not
> > make its way upstream for whatever reason. What is your point? You
> > want to respin it?
>
> It was a reply to Stephen. :-)
>

Ah, fair enough.

Bart