From patchwork Wed Aug 30 15:19:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 718720 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 82205C83F17 for ; Wed, 30 Aug 2023 18:33:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235603AbjH3Sds (ORCPT ); Wed, 30 Aug 2023 14:33:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245487AbjH3PT0 (ORCPT ); Wed, 30 Aug 2023 11:19:26 -0400 Received: from mail-oo1-xc2e.google.com (mail-oo1-xc2e.google.com [IPv6:2607:f8b0:4864:20::c2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1DBDE8; Wed, 30 Aug 2023 08:19:23 -0700 (PDT) Received: by mail-oo1-xc2e.google.com with SMTP id 006d021491bc7-5733d11894dso1047750eaf.0; Wed, 30 Aug 2023 08:19:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1693408763; x=1694013563; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=YRqfnUZnc3uxFvV3HrsnMgzxpGHGjPJ2UGCyRPe16Ro=; b=Q+z/A4ggrBCdqc7sDQ33EIrrxtqe3fLJBNhMb6VytJEGwyIF8Eo92IWlgryAl9mkki lceMD3cpZO8J7wjqe/S7L1bEn1AUNkFTrv2g/kBIptDAvXMXH2cMB2NYbvlXAuUXcIZq 6O2NGpSj8vlyRSkPNHQzSJfN5zjEeUTaHhgQKagIBv1u8bfUFw+DPgI6wnnl3Nzk4C+F Da9o60rIrsZHEeBRlz+eVPxERlq4IXv8nYa2BJoXvwi5TjqAkM5Eojncqfp8W9V/8E4s wrasiLy3SaOYCaeC4jgjhFssrT5LGaBnncGOGtxfCx5IXIu8FkTUYASzgmxeCk+COL/C FLEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693408763; x=1694013563; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YRqfnUZnc3uxFvV3HrsnMgzxpGHGjPJ2UGCyRPe16Ro=; b=hZw5mBBWOIP+yYbLRvzFF16SKqI9YOnGvGTkC0rs2+wWzfZMbNwNdsl70Hxktp8WGE fNqEHMr3lQl1HuQ5ZsdXBbzY5h7OyijLnzpsr2FMBWBe3LH1fZvr4NVZ+dGYa84ysNHG BJjEShv+EfVAO7m72K1s8EMJAnu652sVpCJcrw/Wlg+o9uUpZ2oM32egPd1qw2iGf2zY QOpiGlpf0xGrTdL2zFieAyL4IRuntH59VFHYMbvy7/pwFzCO7vAIAPWuNf0B7QpMWFri HDGK00HBMf4LACXmIktuY5G5aG+qhI2Cs9d6TAcSBQmXpqMAxRX8ZdHWqwq/mIScXZA+ Gg7Q== X-Gm-Message-State: AOJu0YzVK5DVPSv7w8r4kYl4uzFmsCdX8K3F7jxo24vcwBvYDnj+hMS0 5q0bTDg3Hf/H5pzIWIxY6H/Y8GgEeAc= X-Google-Smtp-Source: AGHT+IHktPBlSz49uYINVyiNNhDIO7TAVM7OzuEgcvHckysoiQK+MP045yQtnayLIlBeMhfFQ5Wieg== X-Received: by 2002:a05:6830:459d:b0:6bc:a824:2750 with SMTP id az29-20020a056830459d00b006bca8242750mr2427595otb.2.1693408762641; Wed, 30 Aug 2023 08:19:22 -0700 (PDT) Received: from fabio-Precision-3551.. ([2804:14c:485:4b61:5158:34be:358c:6304]) by smtp.gmail.com with ESMTPSA id d24-20020a056830139800b006b884bbb4f3sm5672559otq.26.2023.08.30.08.19.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Aug 2023 08:19:21 -0700 (PDT) From: Fabio Estevam To: rafael@kernel.org Cc: daniel.lezcano@linaro.org, amitk@kernel.org, rui.zhang@intel.com, linux-pm@vger.kernel.org, krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, Fabio Estevam , Krzysztof Kozlowski Subject: [PATCH v6 1/3] dt-bindings: thermal-zones: Document critical-action Date: Wed, 30 Aug 2023 12:19:06 -0300 Message-Id: <20230830151908.2149847-1-festevam@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Fabio Estevam Document the critical-action property to describe the thermal action the OS should perform after the critical temperature is reached. The possible values are "shutdown" and "reboot". The motivation for introducing the critical-action property is that different systems may need different thermal actions when the critical temperature is reached. For example, a desktop PC may want the OS to trigger a shutdown when the critical temperature is reached. However, in some embedded cases, such behavior does not suit well, as the board may be unattended in the field and rebooting may be a better approach. The bootloader may also benefit from this new property as it can check the SoC temperature and in case the temperature is above the critical point, it can trigger a shutdown or reboot accordingly. Signed-off-by: Fabio Estevam Reviewed-by: Krzysztof Kozlowski --- Changes since v5: - None. .../devicetree/bindings/thermal/thermal-zones.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml index 4f3acdc4dec0..c2e4d28f885b 100644 --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml @@ -75,6 +75,15 @@ patternProperties: framework and assumes that the thermal sensors in this zone support interrupts. + critical-action: + $ref: /schemas/types.yaml#/definitions/string + description: + The action the OS should perform after the critical temperature is reached. + + enum: + - shutdown + - reboot + thermal-sensors: $ref: /schemas/types.yaml#/definitions/phandle-array maxItems: 1