linux-kernel - Re: [PATCH 10/10] pinctrl: starfive: Switch to dynamic chip name output

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Date:   Thu, 10 Feb 2022 15:46:21 +0100
From:   Emil Renner Berthing <kernel@...il.dk>
To:     Marc Zyngier <maz@...nel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        kernel-team@...roid.com
Subject: Re: [PATCH 10/10] pinctrl: starfive: Switch to dynamic chip name output

On Thu, 10 Feb 2022 at 15:34, Marc Zyngier <maz@...nel.org> wrote:
>
> [resending, as I managed to royally screw up my initial email]
>
> On Thu, 10 Feb 2022 14:14:19 +0000,
> Emil Renner Berthing <kernel@...il.dk> wrote:
> >
> > On Thu, 10 Feb 2022 at 14:50, Marc Zyngier <maz@...nel.org> wrote:
> > > On Thu, 10 Feb 2022 13:44:12 +0000,
> > > Emil Renner Berthing <kernel@...il.dk> wrote:
> > > >
> > > > Gotcha. The SoC has been out in very few numbers for less than a year
> > > > and the driver only entered mainline in 5.17-rc1, so I doubt anyone
> > > > has had time to write scripts that check for this, but I'll let it be
> > > > up to you.
> > >
> > > Ah, I should have checked that. In which case, would you be OK if I
> > > simply pushed the removal of this label as a fix for 5.17, and just
> > > have it to say "Star5 GPIO", for example, without any indication of
> > > the device (which appears in debugfs anyway as part of the irqdomain)?
> >
> > I'm fine with it although I'd prefer "StarFive GPIO". I haven't seen
> > star5 used anywhere.
>
> Fair enough.
>
> > But shouldn't changes like this normally go through Linus Walleij's
> > tree?
>
> Either way, I don't mind. For the record, see below what I'm
> suggesting we take in before 5.17-final.

Looks good to me. I don't mind which tree it goes through, just wanted
to make sure everyone's happy.

> Linus?
>
> Thanks,
>
>         M.
>
> From a84b83c32048de2ba72e5d05645eabc95ffabe49 Mon Sep 17 00:00:00 2001
> From: Marc Zyngier <maz@...nel.org>
> Date: Thu, 10 Feb 2022 14:13:36 +0000
> Subject: [PATCH] pinctrl: starfive: Use a static name for the GPIO irq_chip
>
> Drop the device name used for the GPIO irq_chip and replace it
> with something static. The information is still available from
> debugfs and carried as part of the irqdomain.
>
> Suggested-by: Emil Renner Berthing <kernel@...il.dk>
> Signed-off-by: Marc Zyngier <maz@...nel.org>
> ---
>  drivers/pinctrl/pinctrl-starfive.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pinctrl/pinctrl-starfive.c b/drivers/pinctrl/pinctrl-starfive.c
> index 0b912152a405..266da41a6162 100644
> --- a/drivers/pinctrl/pinctrl-starfive.c
> +++ b/drivers/pinctrl/pinctrl-starfive.c
> @@ -1164,6 +1164,7 @@ static int starfive_irq_set_type(struct irq_data *d, unsigned int trigger)
>  }
>
>  static struct irq_chip starfive_irq_chip = {
> +       .name = "StarFive GPIO",
>         .irq_ack = starfive_irq_ack,
>         .irq_mask = starfive_irq_mask,
>         .irq_mask_ack = starfive_irq_mask_ack,
> @@ -1308,7 +1309,6 @@ static int starfive_probe(struct platform_device *pdev)
>         sfp->gc.ngpio = NR_GPIOS;
>
>         starfive_irq_chip.parent_device = dev;
> -       starfive_irq_chip.name = sfp->gc.label;
>
>         sfp->gc.irq.chip = &starfive_irq_chip;
>         sfp->gc.irq.parent_handler = starfive_gpio_irq_handler;
> --
> 2.34.1
>
>
> --
> Without deviation from the norm, progress is not possible.
>
> --
> Without deviation from the norm, progress is not possible.