From nobody Fri Oct 3 00:58:09 2025 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B14A432BF35; Tue, 9 Sep 2025 12:01:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757419288; cv=none; b=Z7OVpvDEBPwRox79NYvuE6Sui8bcfGA7ihAY/b8a3hiTQ0SliTat/+vmaKOVjQgqwZh97JZ5QQJwxNo7FLmDTNGLWu/UcXlnL/p6//RdQleeOZmkaS42uZDzbg22fIqramMYmRgChff3BjARzIFioa71euMe4JwkiAT/8MZqHM0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757419288; c=relaxed/simple; bh=YvfUbxs6b1JbGsqCGcavEKTXNJKfk3IHkVxfwx0HuOg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pYnAXruIlhIwBr5Yo33AxFGvzKPcryVqLzBqGd86/6nZcfSuCuRzPIH8ibDnwC+RiqzhIhbD7pmYLyedX87a2gKNAs+5uzlCcK4ZwSPepwMlC9Ttb5+xdhbGh3uZGeNPhljcoT2ikCREbcwf18t3WDWeDBLGDo3wtnPy4VNdB8c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=cB31eYEJ; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="cB31eYEJ" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 4BEE3C6B39A; Tue, 9 Sep 2025 12:01:09 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id F35C160630; Tue, 9 Sep 2025 12:01:24 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 06F65102F2948; Tue, 9 Sep 2025 14:01:20 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1757419283; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=2slxBNx7/pAHTmwz0kURbwV+wrtZxV+abSkxTsXNeRg=; b=cB31eYEJpVg0R2mEsv4E11tUQZ9sfHeZBLkblLOSXeimwJDQteIEuoyHgnYSAx8wk2IenB gzODyR9Ee2GFWeUjNiN92VskVgCr2o1CZgd0ywLh/8hwOw2tgFDhTz7sgPAlBVw2j92zw0 HCDjjoHeSxUrkd9aIKNa2pxOAfZdaOImZaynU6Dmrd7ClWq3mfsnVgJtOaVD0Xxb1tKB5T d0q4d8mhut99zop1wESPhli/C5sJlGl1uUn6RIv7YPejBMbrrb7Cs3pWHBWa70f55RkMxX q6PuivdHfdejpTIfeWgpgRsJ4DfsEt4Qm6kT/i9rziAJULO3bj8+xG16a3Kh0g== From: "Herve Codina (Schneider Electric)" To: Wolfram Sang , Hoan Tran , Linus Walleij , Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Saravana Kannan , Serge Semin , Herve Codina Cc: Phil Edworthy , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Pascal Eberhard , Miquel Raynal , Thomas Petazzoni Subject: [PATCH v2 2/8] dt-bindings: soc: renesas: Add the Renesas RZ/N1 GPIO Interrupt Multiplexer Date: Tue, 9 Sep 2025 14:00:33 +0200 Message-ID: <20250909120041.154459-3-herve.codina@bootlin.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250909120041.154459-1-herve.codina@bootlin.com> References: <20250909120041.154459-1-herve.codina@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Last-TLS-Session-Version: TLSv1.3 Content-Type: text/plain; charset="utf-8" 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) --- .../soc/renesas/renesas,rzn1-gpioirqmux.yaml | 86 +++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/renesas/renesas,r= zn1-gpioirqmux.yaml diff --git a/Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-gpi= oirqmux.yaml b/Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-g= pioirqmux.yaml new file mode 100644 index 000000000000..4a5aad8b2c44 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/renesas/renesas,rzn1-gpioirqmux= .yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/renesas/renesas,rzn1-gpioirqmux.yam= l# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/N1 SoCs GPIO Interrupt Multiplexer + +description: | + The Renesas RZ/N1 GPIO Interrupt Multiplexer multiplexes GPIO interrupt + lines to the interrupt controller available in the SoC. + + It selects up to 8 of the 96 GPIO interrupt lines available and connect= them + to 8 output interrupt lines. + +maintainers: + - Herve Codina + +properties: + compatible: + items: + - enum: + - renesas,r9a06g032-gpioirqmux + - const: renesas,rzn1-gpioirqmux + + reg: + maxItems: 1 + + "#address-cells": + const: 0 + + "#interrupt-cells": + const: 1 + + interrupt-map-mask: + items: + - const: 0x7f + + interrupt-map: + description: + Specifies the mapping from external GPIO interrupt lines to the outp= ut + interrupts. The array items have to be ordered with the first item + related to the output line 0 (IRQ 103), the next one to the output l= ine 1 + (IRQ 104) and so on up to the output line 8 (IRQ 110). + +required: + - compatible + - reg + - "#address-cells" + - "#interrupt-cells" + - interrupt-map-mask + - interrupt-map + +additionalProperties: false + +examples: + - | + #include + + gic: interrupt-controller { + interrupt-controller; + #interrupt-cells =3D <3>; + }; + + interrupt-controller@51000480 { + compatible =3D "renesas,r9a06g032-gpioirqmux", "renesas,rzn1-gpioi= rqmux"; + reg =3D <0x51000480 0x20>; + #address-cells =3D <0>; + #interrupt-cells =3D <1>; + interrupt-map-mask =3D <0x7f>; + /* + * The child interrupt number is computed using the following form= ula: + * gpio_bank * 32 + gpio_number + * + * with: + * - gpio_bank: The GPIO bank number + * - 0 for GPIO0A, + * - 1 for GPIO1A, + * - 2 for GPIO2A + * - gpio_number: Number of the gpio in the bank (0..31) + */ + interrupt-map =3D + <32 &gic GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>, /* GPIO1A.0 */ + <89 &gic GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>, /* GPIO2A.25 */ + <9 &gic GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>; /* GPIO0A.9 */ + }; --=20 2.51.0