From patchwork Mon Apr 25 13:42:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Ene X-Patchwork-Id: 565870 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 E884BC433EF for ; Mon, 25 Apr 2022 13:42:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242127AbiDYNpZ (ORCPT ); Mon, 25 Apr 2022 09:45:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236961AbiDYNpY (ORCPT ); Mon, 25 Apr 2022 09:45:24 -0400 Received: from mail-wm1-x34a.google.com (mail-wm1-x34a.google.com [IPv6:2a00:1450:4864:20::34a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58C134927F for ; Mon, 25 Apr 2022 06:42:20 -0700 (PDT) Received: by mail-wm1-x34a.google.com with SMTP id az27-20020a05600c601b00b0038ff021c8a4so10318913wmb.1 for ; Mon, 25 Apr 2022 06:42:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=lQ5RaUoos61s9sLCarSwknlz/MZI6vMjNT8rDD3dDxM=; b=j2tmbKMNwRA2mz5km15aKH/1ZJxY9aUD6oO9vf9Dz2U8f+zNTbbWWGHa6dhbE3p9Ky mmIi/p8JieXJ64JTNvsb57X7pmUh/ridCJVfQsFARMSwcSRsFPDfsGESq2gBrsLOe1eN teHOY7k3/pW7iisAobtizS440U6wOU/MiHyLfDZeThLFc4BYXgRQ4syyb3us5dXswN16 hYYQjuaC+ry8Uvox6WngV6UmNWdPowMqWF2h72l9vx1EeyROjq+JnBHG2rRIoRnAaXor aEvKocwxNNF1c4+32kJ9cKxzpomJYJF5JQUCzleVKStdhXSiB3nbn0gDTSxvvW7bexb9 OxwA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=lQ5RaUoos61s9sLCarSwknlz/MZI6vMjNT8rDD3dDxM=; b=QclIn62mHGeZ9tTDc4/nKKC21Jpw5S18Kbs9uM71pxYV3Z5HhIPyjFlUwPsfAfuGH4 3nPNPL5RxG9U11V97jr0xSoTb6hEXb/SeLo6/TzMPqAu4n+qqdL36tM8For9ud9pyL4P HGWBI3a8c4s79TYQXlhQiWiS2Bc6R2jwZXTtr2jD7Dq+AEn9phQlo2UDOqMJQaqyTkwk WNupBfRBvWWua1erw6DSmYsvRdVy0HBhc6Ej/NCwHKfY8YJFW2/PBHFrfF9E5wtclUsI 7tUvQ2zDnKwRVXXOr6o+JsZT3Up91LSXErBMCwzgbJGvKRKyi13UspWVdEM5YDTq0G8l jHiA== X-Gm-Message-State: AOAM531/FaFXxaOOpkWJ0aeSiMhELACaneQQswzF+eCyURIh4U64zO07 +v192QeWf0VDErxxBbhtO6FHA4IXcaK9nNVfk9o= X-Google-Smtp-Source: ABdhPJwuf63jwKxGNpR594SpPnDVD8dU5JHi8uxZovQ2z9bfNKL1JuGRfl/zvtVLxfLemm04TI0A+OUavutqXab/T+M= X-Received: from sene.c.googlers.com ([fda3:e722:ac3:cc00:28:9cb1:c0a8:27c4]) (user=sebastianene job=sendgmr) by 2002:a1c:19c3:0:b0:392:9cef:e32b with SMTP id 186-20020a1c19c3000000b003929cefe32bmr16580716wmz.116.1650894138945; Mon, 25 Apr 2022 06:42:18 -0700 (PDT) Date: Mon, 25 Apr 2022 13:42:05 +0000 In-Reply-To: <20220425134204.149042-1-sebastianene@google.com> Message-Id: <20220425134204.149042-2-sebastianene@google.com> Mime-Version: 1.0 References: <20220425134204.149042-1-sebastianene@google.com> X-Mailer: git-send-email 2.36.0.rc2.479.g8af0fa9b8e-goog Subject: [PATCH v3 1/2] dt-bindings: vm-wdt: Add qemu,vm-watchdog compatible From: Sebastian Ene To: Rob Herring , Greg Kroah-Hartman , Arnd Bergmann , Dragan Cvetic Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, maz@kernel.org, will@kernel.org, qperret@google.com, Sebastian Ene Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The stall detection mechanism allows to configure the expiration duration and the internal counter clock frequency measured in Hz. Add these properties in the schema. Signed-off-by: Sebastian Ene --- .../devicetree/bindings/misc/vm-wdt.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/vm-wdt.yaml diff --git a/Documentation/devicetree/bindings/misc/vm-wdt.yaml b/Documentation/devicetree/bindings/misc/vm-wdt.yaml new file mode 100644 index 000000000000..cb7665a0c5af --- /dev/null +++ b/Documentation/devicetree/bindings/misc/vm-wdt.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/misc/vm-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: VM watchdog + +description: | + This binding describes a CPU stall detector mechanism for virtual cpus. + +maintainers: + - Sebastian Ene + +properties: + compatible: + enum: + - qemu,vm-watchdog + clock: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + The watchdog internal clock measure in Hz used to decrement the + watchdog counter register on each tick. + Defaults to 10 if unset. + timeout-sec: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + The watchdog expiration timeout measured in seconds. + Defaults to 8 if unset. + +required: + - compatible + +additionalProperties: false + +examples: + - | + watchdog { + compatible = "qemu,vm-watchdog"; + clock = <10>; + timeout-sec = <8>; + }; + +...