linux-kernel - Re: [PATCH v4 03/15] pinctrl: bcm: add bcm63xx base code

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Message-Id: <667E0AEF-B453-4CC7-9514-5E72BEF4B0E3@gmail.com>
Date:   Thu, 4 Mar 2021 12:17:22 +0100
From:   Álvaro Fernández Rojas <noltari@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>,
        Jonas Gorski <jonas.gorski@...il.com>,
        Necip Fazil Yildiran <fazilyildiran@...il.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 03/15] pinctrl: bcm: add bcm63xx base code

Hi Andy

> El 4 mar 2021, a las 11:43, Andy Shevchenko <andy.shevchenko@...il.com> escribió:
> 
> On Thu, Mar 4, 2021 at 10:57 AM Álvaro Fernández Rojas
> <noltari@...il.com> wrote:
>> 
>> Add a helper for registering BCM63XX pin controllers.
>> 
>> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
>> Signed-off-by: Jonas Gorski <jonas.gorski@...il.com>
> 
> This SoB is in a strange place.

Why?
Can’t we both sign the patches?

> 
> The order is wrong taking into account the From header (committer). So,
> it's not clear who is the author, who is a co-developer, and who is
> the committer (one person may utilize few roles).
> Check for the rest of the series as well (basically this is the rule
> of thumb to recheck entire code for the comment you have got at any
> single place of it).

Jonas was the original author of this patches (sent back in 2016) and I’m just continuing his work and trying to get those patches upstreamed.
I don’t know how to do it correctly, so a little hint would be appreciated.

> 
> ...
> 
>> +static const struct of_device_id bcm63xx_gpio_of_match[] = {
>> +       { .compatible = "brcm,bcm6318-gpio", },
>> +       { .compatible = "brcm,bcm6328-gpio", },
>> +       { .compatible = "brcm,bcm6358-gpio", },
>> +       { .compatible = "brcm,bcm6362-gpio", },
>> +       { .compatible = "brcm,bcm6368-gpio", },
>> +       { .compatible = "brcm,bcm63268-gpio", },
> 
>> +       { /* sentinel */ },
> 
> Comma is not needed in terminator line

Ok, I will remove it.

> 
>> +};
> 
> ...
> 
>> +       dev_info(dev, "registered\n");
> 
> Unneeded noise.

Ok, I will remove it.

> 
> ...
> 
>> +#include <linux/pinctrl/pinctrl.h>
>> +#include <linux/regmap.h>
> 
> The rule of thumb is to include only the headers that the below code
> is direct user of.

Ok, so I will move them to pinctrl-bcm63xx.c.
I added them because they were needed for pinctrl_desc.

> 
> The above are not used anyhow, while missed types.h and several
> forward declarations.

… so I should include linux/types.h and I don’t know what you mean by “several forward declarations”…

> 
>> +#include "../core.h"
> 
> Seems the same.

Ok, I will move it to pinctrl-bcm63xx.c.

> 
>> +#define BCM63XX_BANK_GPIOS 32
>> +
>> +struct bcm63xx_pinctrl_soc {
>> +       struct pinctrl_ops *pctl_ops;
>> +       struct pinmux_ops *pmx_ops;
>> +
>> +       const struct pinctrl_pin_desc *pins;
>> +       unsigned npins;
>> +
>> +       unsigned int ngpios;
>> +};
>> +
>> +struct bcm63xx_pinctrl {
>> +       struct device *dev;
>> +       struct regmap *regs;
>> +
>> +       struct pinctrl_desc pctl_desc;
>> +       struct pinctrl_dev *pctl_dev;
>> +
>> +       void *driver_data;
>> +};
> 
> 
> --
> With Best Regards,
> Andy Shevchenko

Best regards,
Álvaro.