From patchwork Thu Apr 18 12:11:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 1924970 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=SinvESmt; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=147.75.80.249; helo=am.mirrors.kernel.org; envelope-from=devicetree+bounces-60527-incoming-dt=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from am.mirrors.kernel.org (am.mirrors.kernel.org [147.75.80.249]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VKxTR57kJz1ymh for ; Thu, 18 Apr 2024 22:11:39 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id D294C1F21763 for ; Thu, 18 Apr 2024 12:11:36 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 92BC015F41B; Thu, 18 Apr 2024 12:11:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="SinvESmt" X-Original-To: devicetree@vger.kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3874A15DBD6 for ; Thu, 18 Apr 2024 12:11:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713442289; cv=none; b=IGKfm8GtkG8yF265zYOPQXM06NTBPD3Vso8owkg/CTgT2lUzJuYGCcH6NieqfLyzDMDoyx31fFYGPxMFvXu/pZyYvMPlY8B6w4IBuI6kDl4WOUYPaXIVwblmiwjBMFQCOLNRhRSASLFVCnZUMy7P5bpP2s7YIYni2hS0YOj6enk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713442289; c=relaxed/simple; bh=uWP8fGgyCVsmw8cRYLqGdItnyBU/yaCTnCyJ/52vTKk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=CnFeEGmg+vJ2gaalcq7ArcyJQG0W/Ai3EAAEeHPBNmtqitnNNIL2Tm5ChqrU/0To5Z8PmsKfYfdo6MLvmHnZXcWZtvFrHlpklteK1gItq3GaGDWWzN8TY+I4bavZ+MfztbcsWEATvcfTzAFywOWZdfHKL3v8oa4Xvk5yg2uIM9c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=SinvESmt; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1F1DC32783; Thu, 18 Apr 2024 12:11:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713442288; bh=uWP8fGgyCVsmw8cRYLqGdItnyBU/yaCTnCyJ/52vTKk=; h=From:List-Id:To:Cc:Subject:Date:In-Reply-To:References:From; b=SinvESmt6MrjLQW2YDbGdgJJJPOs1PLYDEbOKPrEmSFBfUQaeM+uM3PmjDUIC9DvZ oZbvmZzN/lo2CPm1+oZ3ooXtpNMWZ6zanjAJcGtrX1ZKxwk+DT7p5bCaxtJ/r7HO6+ Z5oRzTNVq2/4jJIbFy0SKO5Oii7gf9tiV12imLEJl52UnHwF/XfyHXBl56W8JFVHyS ary+raYq+y1oR56c6UONwjmT4C8a383quVIQ7AavdgljFFQG3yo/q03gc6bsXL1Rkr 6nV53un/b7n+liuZbBfKY9YrxhoNQ9dPfs3eZe5vM4J7Qngx/HQazscqOnN18F/edk xFcJ0x3t4gCVw== From: =?utf-8?q?Marek_Beh=C3=BAn?= To: Gregory CLEMENT , Arnd Bergmann , soc@kernel.org Cc: arm@kernel.org, =?utf-8?q?Marek_Beh=C3=BAn?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Krzysztof Kozlowski Subject: [PATCH v6 01/11] dt-bindings: arm: add cznic,turris-omnia-mcu binding Date: Thu, 18 Apr 2024 14:11:06 +0200 Message-ID: <20240418121116.22184-2-kabel@kernel.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240418121116.22184-1-kabel@kernel.org> References: <20240418121116.22184-1-kabel@kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add binding for cznic,turris-omnia-mcu, the device-tree node representing the system-controller features provided by the MCU on the Turris Omnia router. Signed-off-by: Marek Behún Reviewed-by: Krzysztof Kozlowski --- .../bindings/arm/cznic,turris-omnia-mcu.yaml | 86 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml diff --git a/Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml b/Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml new file mode 100644 index 000000000000..dd9ee21ee24d --- /dev/null +++ b/Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/cznic,turris-omnia-mcu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: CZ.NIC's Turris Omnia MCU + +maintainers: + - Marek Behún + +description: + The MCU on Turris Omnia acts as a system controller providing additional + GPIOs, interrupts, watchdog, system power off and wakeup configuration. + +properties: + compatible: + const: cznic,turris-omnia-mcu + + reg: + description: MCU I2C slave address + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + description: | + The first cell specifies the interrupt number (0 to 63), the second cell + specifies interrupt type (which can be one of IRQ_TYPE_EDGE_RISING, + IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH). + The interrupt numbers correspond sequentially to GPIO numbers, taking the + GPIO banks into account: + IRQ number GPIO bank GPIO pin within bank + 0 - 15 0 0 - 15 + 16 - 47 1 0 - 31 + 48 - 63 2 0 - 15 + There are several exceptions: + IRQ number meaning + 11 LED panel brightness changed by button press + 13 TRNG entropy ready + 14 ECDSA message signature computation done + + gpio-controller: true + + '#gpio-cells': + const: 3 + description: + The first cell is bank number (0, 1 or 2), the second cell is pin number + within the bank (0 to 15 for banks 0 and 2, 0 to 31 for bank 1), and the + third cell specifies consumer flags. + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - gpio-controller + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + system-controller@2a { + compatible = "cznic,turris-omnia-mcu"; + reg = <0x2a>; + + interrupt-parent = <&gpio1>; + interrupts = <11 IRQ_TYPE_NONE>; + + gpio-controller; + #gpio-cells = <3>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index c23fda1aa1f0..23637ff1e0bc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2141,6 +2141,7 @@ W: https://www.turris.cz/ F: Documentation/ABI/testing/debugfs-moxtet F: Documentation/ABI/testing/sysfs-bus-moxtet-devices F: Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm +F: Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml F: Documentation/devicetree/bindings/bus/moxtet.txt F: Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt F: Documentation/devicetree/bindings/gpio/gpio-moxtet.txt