From patchwork Tue Nov 30 16:18:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 517786 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 611A3C433F5 for ; Tue, 30 Nov 2021 16:18:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236913AbhK3QVu (ORCPT ); Tue, 30 Nov 2021 11:21:50 -0500 Received: from new4-smtp.messagingengine.com ([66.111.4.230]:42027 "EHLO new4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234552AbhK3QVs (ORCPT ); Tue, 30 Nov 2021 11:21:48 -0500 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id 6E760580129; Tue, 30 Nov 2021 11:18:24 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Tue, 30 Nov 2021 11:18:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; s=fm3; bh=yqwoBj/vWfeXNQgCvpj+YqonSU yi2vtvBoiOZzTnEUE=; b=ULWafKAXsOC4xDUqQoDhiXfx1RWMiIAmrDWWBX8qzl ni1OfFtOpZGeBIq3Xtk5YCO1Z4gsTP0Id5qI+f6HBeLqD8GwOlb7ns1KsPr+t3Th fFw9/oCNEHG+1kVB1TYPluxJrBGS1ZneiC3Jpm/xzLbB9+cAi2AqAVyzN0Hjju9f Pi+SCnzMdp8PeeUOqCtibzozOwPQF2241J+bw/oBDOGO9sg3YGxEkJzK5xxbQ/Iz R7FbJcMEwTllpHYOe32I+a3FKJiyeDTd7Z6WuyzjewarXZDcmQnO8JGeHwJ0RLrS 7BygfMfp2EzuWMtaUO57b8CsjFpBra3z1l4iEUU0Rv0w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :message-id:mime-version:subject:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=yqwoBj/vWfeXNQgCv pj+YqonSUyi2vtvBoiOZzTnEUE=; b=a5sCJf0LHQjoYtkMzotyeH+cK5YxpoWrx 9t2t8wogWoaYqXwU9bNjtjhyEflfUsIBw+L2EjjtKIbO70yPz44tin3eGChm6aIO diIdIg48lZt6qizBn9TfxEsqS6KSGULMM+JLXKJoXazFWbxzTThgoeAd38udFGP3 Ghq+atmLLvrvpSKM2VjDmC2UxmAHFcEnvq5oyHyP9tcYAuv+aHxUsqccf9ej3z09 3CkwbSdt3UL4IyDwuNgnAwTTCOweCTWX4fNiddiM9ZJGPJLYy0XjqHJJwlfGPwnK PH1SyuUifM3mlsQk6bL63Xy7ByN5T8JG2lD+IXRbvLUdxvXRPjEog== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddriedugdekjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgggfestdekredtredttdenucfhrhhomhepufhvvghnucfrvght vghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtthgvrhhnpe duffejkeevlefggfekkeevjeffgeekjedtjedtfeethfeludehkeehgfeuteekhfenucff ohhmrghinhepuggvvhhitggvthhrvggvrdhorhhgnecuvehluhhsthgvrhfuihiivgeptd enucfrrghrrghmpehmrghilhhfrhhomhepshhvvghnsehsvhgvnhhpvghtvghrrdguvghv X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 30 Nov 2021 11:18:20 -0500 (EST) From: Sven Peter To: Rob Herring , devicetree@vger.kernel.org Cc: Sven Peter , Wim Van Sebroeck , Guenter Roeck , Hector Martin , Alyssa Rosenzweig , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Janne Grunau , Mark Kettenis , Rob Herring Subject: [PATCH v2 1/2] dt-bindings: watchdog: Add Apple Watchdog Date: Tue, 30 Nov 2021 17:18:08 +0100 Message-Id: <20211130161809.64591-1-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Apple SoCs come with a simple embedded watchdog. This watchdog is also required in order to reset the SoC. Reviewed-by: Mark Kettenis Reviewed-by: Rob Herring Signed-off-by: Sven Peter Tested-by: Janne Grunau Reviewed-by: Guenter Roeck --- v1 --> v2: - add Mark's and Rob's r-b tags .../bindings/watchdog/apple,wdt.yaml | 52 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml new file mode 100644 index 000000000000..e58c56a6fdf6 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple SoC Watchdog + +allOf: + - $ref: "watchdog.yaml#" + +maintainers: + - Sven Peter + +properties: + compatible: + items: + - enum: + - apple,t8103-wdt + - apple,t6000-wdt + - const: apple,wdt + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - interrupts + +unevaluatedProperties: false + +examples: + - | + #include + #include + + wdt: watchdog@50000000 { + compatible = "apple,t8103-wdt", "apple,wdt"; + reg = <0x50000000 0x4000>; + clocks = <&clk>; + interrupts = ; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 360e9aa0205d..859201bbd4e8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1750,6 +1750,7 @@ F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml F: Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml F: Documentation/devicetree/bindings/pci/apple,pcie.yaml F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml +F: Documentation/devicetree/bindings/watchdog/apple,wdt.yaml F: arch/arm64/boot/dts/apple/ F: drivers/i2c/busses/i2c-pasemi-core.c F: drivers/i2c/busses/i2c-pasemi-platform.c