linux-kernel - Re: [PATCH v7 0/8] gpio: renesas: Add support for GPIO and related interrupts in RZ/N1 SoC

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Message-ID: <CAMuHMdXTZ2LDs-nFQRh+Q5YAW_LD+j6j=Mzv0RxyB-1wnJgbuQ@mail.gmail.com>
Date: Mon, 22 Dec 2025 16:35:35 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>, Rob Herring <robh@...nel.org>, 
	Thomas Gleixner <tglx@...utronix.de>
Cc: "Herve Codina (Schneider Electric)" <herve.codina@...tlin.com>, Linus Walleij <linus.walleij@...aro.org>, 
	Bartosz Golaszewski <brgl@...ev.pl>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Magnus Damm <magnus.damm@...il.com>, Saravana Kannan <saravanak@...gle.com>, linux-gpio@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org, Pascal Eberhard <pascal.eberhard@...com>, 
	Miquel Raynal <miquel.raynal@...tlin.com>, Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v7 0/8] gpio: renesas: Add support for GPIO and related
 interrupts in RZ/N1 SoC

Hi Wolfram, Rob, Thomas,

On Sat, 20 Dec 2025 at 07:37, Wolfram Sang
<wsa+renesas@...g-engineering.com> wrote:
> > This series adds support for GPIO and GPIO IRQ mux available in the
> > RZ/N1 SoCs.
> >
> > The first patches in this series are related to a new helper introduced
> > to parse an interrupt-map property.
> >   - patch 1: Introduce the helper (for_each_of_imap_item)
> >   - patch 2: Add a unittest for the new helper
> >   - patch 3 and 4: convert existing drivers to use this new helper
> >
> > Patch 5 adds support for GPIO (device-tree description)
> >
> > The last patches (6, 7 and 8) of the series are related to GPIO
> > interrupts and GPIO IRQ multiplexer.
>
> I think this series is ready and I would really like to see it upstream
> soon. I wonder, however, if the path to upstream has already been
> discussed? It touches various subsystems, so I don't see immediately who
> should pick the whole series? Or if parts should go to different
> subsystems offering immutable branches? I bring this up because I want
> to avoid losing a cycle just because this is unclear...

We actually did[1]. Unfortunately that plan was never executed.
The DTS patches I can easily take through renesas-devel, as they have
no hard dependencies.
For the remaining patches, I see two options:
  A. Rob takes the first two patches, and provides an immutable branch.
     Then Thomas takes the irqchip patches, and I take the rest.
  B. Rob and Thomas provide acks, and I take the whole series.

Thanks!

[1] https://lore.kernel.org/20251114124045.16204839@bootlin.com

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds