linux-kernel - Re: [PATCH v5] gpio: sim: don't fiddle with GPIOLIB private members

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Message-ID: <CAMRc=Mf8zhmMaMSoO_cceG9meCHr1AbZMMRJE7Qms8qEt047Cg@mail.gmail.com>
Date:   Mon, 11 Sep 2023 14:56:23 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Kent Gibson <warthog618@...il.com>, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v5] gpio: sim: don't fiddle with GPIOLIB private members

On Mon, Sep 11, 2023 at 2:54 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Mon, Sep 11, 2023 at 01:07:40PM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> >
> > We access internals of struct gpio_device and struct gpio_desc because
> > it's easier but it can actually be avoided and we're working towards a
> > better encapsulation of GPIO data structures across the kernel so let's
> > start at home.
> >
> > Instead of checking gpio_desc flags, let's just track the requests of
> > GPIOs in the driver. We also already store the information about
> > direction of simulated lines.
> >
> > For kobjects needed by sysfs callbacks: we can iterate over the children
> > devices of the top-level platform device and compare their fwnodes
> > against the one passed to the init function from probe.
> >
> > While at it: fix one line break and remove the untrue part about
> > configfs callbacks using dev_get_drvdata() from a comment.
>
> (Just wondering if you used --patience)
>

I may have forgotten this one time. I need to add an alias.

Bart

> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
>
> --
> With Best Regards,
> Andy Shevchenko
>
>