Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20210727144816.8697-1-sergio.paracuellos@gmail.com> <20210727144816.8697-2-sergio.paracuellos@gmail.com>
In-Reply-To: <20210727144816.8697-2-sergio.paracuellos@gmail.com>
From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Tue, 27 Jul 2021 18:04:57 +0300
Message-ID: <CAHp75VdxrBbnkBDfhb3q7KM3CkAzyAq86gqjLFD5aaKNzVJCHQ@mail.gmail.com>
Subject: Re: [PATCH v2 1/3] gpiolib: convert 'devprop_gpiochip_set_names' to
 support multiple gpiochip banks per device
To:     Sergio Paracuellos <sergio.paracuellos@gmail.com>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        gregory.0xf0@gmail.com,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        =?UTF-8?Q?Ren=C3=A9_van_Dorst?= <opensource@vdorst.com>,
        John Thomson <git@johnthomson.fastmail.com.au>,
        NeilBrown <neil@brown.name>,
        Nicholas Mc Guire <hofrat@osadl.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Tue, Jul 27, 2021 at 5:48 PM Sergio Paracuellos
<sergio.paracuellos@gmail.com> wrote:
>
> The default gpiolib-of implementation does not work with the multiple
> gpiochip banks per device structure used for example by the gpio-mt7621
> and gpio-brcmstb drivers. To fix these kind of situations driver code
> is forced to fill the names to avoid the gpiolib code to set names
> repeated along the banks. Instead of continue with that antipattern
> fix the gpiolib core function to get expected behaviour for every
> single situation adding a field 'offset' in the gpiochip structure.
> Doing in this way, we can assume this offset will be zero for normal
> driver code where only one gpiochip bank per device is used but
> can be set explicitly in those drivers that really need more than
> one gpiochip.

...

> +               dev_warn(&gdev->dev, "gpio-line-names too short (length %d) "
> +                        "cannot map names for the gpiochip at offset %u\n",

Reflow this that string literal will be on one line (it's fine to be
over even 100).

> +                        count, chip->offset);

--
With Best Regards,
Andy Shevchenko