linux-kernel - Re: [PATCH 2/8] pinctrl: stm32: use gpio-ranges to declare bank range

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Date:   Mon, 27 Mar 2017 12:23:49 +0200
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Linus Walleij <linus.walleij@...aro.org>
CC:     Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@...linux.org.uk>,
        Olof Johansson <olof@...om.net>,
        Patrice Chotard <patrice.chotard@...com>,
        Lee Jones <lee.jones@...aro.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/8] pinctrl: stm32: use gpio-ranges to declare bank range

Hi Linus

On 02/01/2017 04:01 PM, Linus Walleij wrote:
> On Mon, Jan 30, 2017 at 5:29 PM, Alexandre Torgue
> <alexandre.torgue@...com> wrote:
>> On 01/30/2017 04:19 PM, Linus Walleij wrote:
>
>>>> +       if (!of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0,
>>>> &args))
>>>> +               bank_nr = args.args[1] / STM32_GPIO_PINS_PER_BANK;
>>>> +       else {
>>>> +               range->name = bank->gpio_chip.label;
>>>> +               range->id = bank_nr;
>>>> +               range->pin_base = range->id * STM32_GPIO_PINS_PER_BANK;
>>>> +               range->base = range->id * STM32_GPIO_PINS_PER_BANK;
>>>> +               range->npins = npins;
>>>> +               range->gc = &bank->gpio_chip;
>>>> +               pinctrl_add_gpio_range(pctl->pctl_dev,
>>>> +                                      &pctl->banks[bank_nr].range);
>>>> +       }
>>
>>
>> I Keep the old way to get range in order to keep compatibility with older
>> device tree (if no gpio ranges are defined).
>
> Aha I understand. Sorry for my stupidity.
>
> Go ahead with this!

I saw an issue about this patch. It doesn't seem to be merged, so I will 
send a V2 only for this patch.

Regards
Alex


>
> Yours,
> Linus Walleij
>