linux-kernel - Re: [PATCH v2 2/8] dt-bindings: soc: renesas: Add the Renesas RZ/N1 GPIO Interrupt Multiplexer

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Message-ID: <20250910143316.GA4047084-robh@kernel.org>
Date: Wed, 10 Sep 2025 09:33:16 -0500
From: Rob Herring <robh@...nel.org>
To: "Herve Codina (Schneider Electric)" <herve.codina@...tlin.com>
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Hoan Tran <hoan@...amperecomputing.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	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 2/8] dt-bindings: soc: renesas: Add the Renesas RZ/N1
 GPIO Interrupt Multiplexer

On Tue, Sep 09, 2025 at 02:00:33PM +0200, Herve Codina (Schneider Electric) wrote:
> On the Renesas RZ/N1 SoC, GPIOs can generate interruptions. Those
> interruption lines are multiplexed by the GPIO Interrupt Multiplexer in
> order to map 32 * 3 GPIO interrupt lines to 8 GIC interrupt lines.
> 
> The GPIO interrupt multiplexer IP does nothing but select 8 GPIO
> IRQ lines out of the 96 available to wire them to the GIC input lines.
> 
> Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@...tlin.com>
> ---
>  .../soc/renesas/renesas,rzn1-gpioirqmux.yaml  | 86 +++++++++++++++++++
>  1 file changed, 86 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-gpioirqmux.yaml

Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-gpioirqmux.example.dts:42.13-45.34: Warning (interrupt_map): /example-0/interrupt-controller@...00480:interrupt-map: Missing property '#address-cells' in node /example-0/interrupt-controller, using 0 as fallback
Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-gpioirqmux.example.dts:42.13-45.34: Warning (interrupt_map): /example-0/interrupt-controller@...00480:interrupt-map: Missing property '#address-cells' in node /example-0/interrupt-controller, using 0 as fallback
Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-gpioirqmux.example.dts:42.13-45.34: Warning (interrupt_map): /example-0/interrupt-controller@...00480:interrupt-map: Missing property '#address-cells' in node /example-0/interrupt-controller, using 0 as fallback