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

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Message-ID: <CAMRc=MfXe0POno6LuonTMC56+rOfHZ=mwOG3PhFxLT3yjRWK5A@mail.gmail.com>
Date:   Tue, 12 Sep 2023 09:30:04 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Kent Gibson <warthog618@...il.com>
Cc:     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 1:07 PM Bartosz Golaszewski <brgl@...ev.pl> 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.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---

Patch applied.

Bart