linux-kernel - Re: [PATCH v7 8/8] ARM: dts: r9a06g032: Add support for GPIO interrupts

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Message-ID: <aUZFHkkDBiE4X7O5@shikoro>
Date: Sat, 20 Dec 2025 07:41:34 +0100
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: "Herve Codina (Schneider Electric)" <herve.codina@...tlin.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	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>, 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>,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v7 8/8] ARM: dts: r9a06g032: Add support for GPIO
 interrupts

On Mon, Dec 15, 2025 at 03:28:30PM +0100, Herve Codina (Schneider Electric) wrote:
> In the RZ/N1 SoC, the GPIO interrupts are multiplexed using the GPIO
> Interrupt Multiplexer.
> 
> Add the multiplexer node and connect GPIO interrupt lines to the
> multiplexer.
> 
> The interrupt-map available in the multiplexer node has to be updated in
> dts files depending on the GPIO usage. Indeed, the usage of an interrupt
> for a GPIO is board dependent.
> 
> Up to 8 GPIOs can be used as an interrupt line (one per multiplexer
> output interrupt).
> 
> Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@...tlin.com>
> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> Reviewed-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

Tested-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

I used this patch successfully with my N1D demo board. I will upstream
the board changes once this series hits mainline.


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