From: "Álvaro Fernández Rojas" <noltari@gmail.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Michael Walle <michael@walle.cc>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Florian Fainelli <f.fainelli@gmail.com>,
bcm-kernel-feedback-list <bcm-kernel-feedback-list@broadcom.com>,
Jonas Gorski <jonas.gorski@gmail.com>,
Necip Fazil Yildiran <fazilyildiran@gmail.com>,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
devicetree <devicetree@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v4 02/15] gpio: regmap: set gpio_chip of_node
Date: Thu, 4 Mar 2021 16:24:55 +0100 [thread overview]
Message-ID: <0504ADC2-0DD5-4E9E-B7DF-353B4EBAB6B4@gmail.com> (raw)
In-Reply-To: <CAHp75VdJGh=Vy=kJr2CemPbSa-amYykNoYd0-jaz0utdC_bkbg@mail.gmail.com>
Hi Andy,
> El 4 mar 2021, a las 16:17, Andy Shevchenko <andy.shevchenko@gmail.com> escribió:
>
> On Thu, Mar 4, 2021 at 5:06 PM Álvaro Fernández Rojas <noltari@gmail.com> wrote:
>>> El 4 mar 2021, a las 11:35, Andy Shevchenko <andy.shevchenko@gmail.com> escribió:
>>> On Thu, Mar 4, 2021 at 10:57 AM Álvaro Fernández Rojas
>>> <noltari@gmail.com> wrote:
>
>>>> + * @of_node: (Optional) The device node
>>>
>>>> + struct device_node *of_node;
>>>
>>> Can we use fwnode from day 1, please?
>>
>> Could you explain this? I haven’t dealt with fwnode never :$
>> BTW, this is done to fix this check when parsing gpio ranges:
>> https://github.com/torvalds/linux/blob/f69d02e37a85645aa90d18cacfff36dba370f797/drivers/gpio/gpiolib-of.c#L933-L934
>
> Use struct fwnode_handle pointer instead of OF-specific one.
But is that compatible with the current gpiolib-of code? :$
>
> Also here is the question, why do you need to have that field in the
> regmap config structure and can't simply use the parent's fwnode?
> Also I'm puzzled why it's not working w/o this patch: GPIO library
> effectively assigns parent's fwnode (okay, of_node right now).
Because gpio regmap a child node of the pin controller, which is the one probed (gpio regmap is probed from the pin controller).
Therefore the parent’s fwnode is useless, since the correct gpio_chip node is the child's one (we have pin-ranges declared in the child node, referencing the parent pinctrl node).
>
> --
> With Best Regards,
> Andy Shevchenko
Best regards,
Álvaro.
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next prev parent reply other threads:[~2021-03-04 15:26 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 8:56 [PATCH v4 00/15] pinctrl: add BCM63XX pincontrol support Álvaro Fernández Rojas
2021-03-04 8:56 ` [PATCH v4 01/15] gpio: guard gpiochip_irqchip_add_domain() with GPIOLIB_IRQCHIP Álvaro Fernández Rojas
2021-03-04 10:33 ` Andy Shevchenko
2021-03-04 10:36 ` Álvaro Fernández Rojas
2021-03-09 16:20 ` Linus Walleij
2021-03-04 8:56 ` [PATCH v4 02/15] gpio: regmap: set gpio_chip of_node Álvaro Fernández Rojas
2021-03-04 10:35 ` Andy Shevchenko
2021-03-04 15:06 ` Álvaro Fernández Rojas
2021-03-04 15:17 ` Andy Shevchenko
2021-03-04 15:24 ` Álvaro Fernández Rojas [this message]
2021-03-04 15:28 ` Andy Shevchenko
2021-03-04 15:44 ` Álvaro Fernández Rojas
2021-03-04 16:33 ` Andy Shevchenko
2021-03-04 16:46 ` Andy Shevchenko
2021-03-04 17:24 ` Michael Walle
2021-03-05 9:44 ` Andy Shevchenko
2021-03-05 7:45 ` Álvaro Fernández Rojas
2021-03-05 9:49 ` Andy Shevchenko
2021-03-04 8:56 ` [PATCH v4 03/15] pinctrl: bcm: add bcm63xx base code Álvaro Fernández Rojas
2021-03-04 10:43 ` Andy Shevchenko
2021-03-04 11:17 ` Álvaro Fernández Rojas
2021-03-04 12:09 ` Andy Shevchenko
2021-03-04 12:28 ` Álvaro Fernández Rojas
2021-03-04 15:19 ` Andy Shevchenko
2021-03-04 8:56 ` [PATCH v4 04/15] Documentation: add BCM6328 pincontroller binding documentation Álvaro Fernández Rojas
2021-03-04 12:53 ` Michael Walle
2021-03-04 8:57 ` [PATCH v4 05/15] pinctrl: add a pincontrol driver for BCM6328 Álvaro Fernández Rojas
2021-03-04 10:49 ` Andy Shevchenko
2021-03-04 11:13 ` Álvaro Fernández Rojas
2021-03-04 12:12 ` Andy Shevchenko
2021-03-04 12:25 ` Álvaro Fernández Rojas
2021-03-04 15:25 ` Andy Shevchenko
2021-03-04 15:33 ` Álvaro Fernández Rojas
2021-03-04 15:36 ` Andy Shevchenko
2021-03-04 8:57 ` [PATCH v4 06/15] Documentation: add BCM6358 pincontroller binding documentation Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 07/15] pinctrl: add a pincontrol driver for BCM6358 Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 08/15] Documentation: add BCM6362 pincontroller binding documentation Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 09/15] pinctrl: add a pincontrol driver for BCM6362 Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 10/15] Documentation: add BCM6368 pincontroller binding documentation Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 11/15] pinctrl: add a pincontrol driver for BCM6368 Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 12/15] Documentation: add BCM63268 pincontroller binding documentation Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 13/15] pinctrl: add a pincontrol driver for BCM63268 Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 14/15] Documentation: add BCM6318 pincontroller binding documentation Álvaro Fernández Rojas
2021-03-04 8:57 ` [PATCH v4 15/15] pinctrl: add a pincontrol driver for BCM6318 Álvaro Fernández Rojas
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