linux-kernel - Re: [PATCH v2 0/8] gpio: renesas: Add support for GPIO and related interrupts in RZ/N1 SoC

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Message-ID: <20250911090450.32c7cdbe@bootlin.com>
Date: Thu, 11 Sep 2025 09:04:50 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>, Hoan Tran
 <hoan@...amperecomputing.com>, Linus Walleij <linus.walleij@...aro.org>,
 Bartosz Golaszewski <brgl@...ev.pl>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Geert Uytterhoeven <geert+renesas@...der.be>, Magnus
 Damm <magnus.damm@...il.com>, Saravana Kannan <saravanak@...gle.com>, Serge
 Semin <fancer.lancer@...il.com>, Phil Edworthy <phil.edworthy@...esas.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 v2 0/8] gpio: renesas: Add support for GPIO and related
 interrupts in RZ/N1 SoC

Hi Thomas,

On Tue, 09 Sep 2025 22:54:41 +0200
Thomas Gleixner <tglx@...utronix.de> wrote:

> On Tue, Sep 09 2025 at 22:51, Thomas Gleixner wrote:
> > On Tue, Sep 09 2025 at 14:00, Herve Codina wrote:  
> >>   Patch 5 (new in v2)
> >>    - Convert irqchip/ls-extirq to use for_each_of_imap_item
> >>
> >>   Patch 6 (new in v2)
> >>    - Convert irqchip/renesas-rza1 to use for_each_of_imap_item  
> >
> > How are those two patches related to adding GPIO support?
> >
> > AFAICT, they are completely unrelated and just randomly sprinkled into
> > this series, but I might be missing something.  
> 
> Ah. I missed that this iterator got introduced in this series. Did you
> check whether that creates any conflicts against pending irqchip
> patches?
> 

Indeed, I have a conflict in my patch 6 with 40c26230a1bf ("irqchip: Use int
type to store negative error codes").

I can rebase my next iteration on top of 40c26230a1bf and mention this commit
in my next iteration cover letter but an immutable tag and referencing this
tag in the cover letter should be better.

What is the best approach?

Best regards,
Hervé