From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11562C3279B for ; Mon, 2 Jul 2018 18:11:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA52E24FAC for ; Mon, 2 Jul 2018 18:11:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CA52E24FAC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753279AbeGBSLP (ORCPT ); Mon, 2 Jul 2018 14:11:15 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:37992 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753203AbeGBSLF (ORCPT ); Mon, 2 Jul 2018 14:11:05 -0400 Received: by mail-pf0-f193.google.com with SMTP id j17-v6so7869747pfn.5 for ; Mon, 02 Jul 2018 11:11:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=1JwKOqWJyrr/39mWOVkjZxVWrT/c0a+cxPW5ln8IJw8=; b=Kslwrzgqgr6gXl7iZHWiNXpaIiRMGCiQZhjfuXXVgzfWOeDSNx72ugWs6u5Fo6/wPq bBALFl2wr5QV0BG37jTsZp6UgvVOO42TWpfpyN+CUqb1eDXm65ppeEt2sCvovshnB8N0 qWfR7vm9EI5Qw6xnyZ0ZAbv7r5WPXg3DwmSAC+vB3I8ewfnnQ967cge9KJk2PeBjYX5g OHHeqQzNC8s/H/hU8vgoKD+mwuMzK6vG8ICmL/FTJwTC/W5s36KoK8OiZcEzSoQFZ4e9 SP9Y1v3kr7zyl9hcD/Z10fN5xPvPU5YHbb0xVVpaHnPF8UCMIVDiG6p5k8HZn2Z6Nyx/ oJ3w== X-Gm-Message-State: APt69E0rPsOE97bAR1S7fIaq3KISu43mFLiZR4Ko6MsMLTI/CoURtlGL yjp4z76YOHcZT/8bBHQwAA0C2Q== X-Google-Smtp-Source: AAOMgpcWFnlOQzG5VEcAvfAJl+Ip/pJou2TYu9xA8GwIJRBNu2OYmIa3Y13fYxHrl0pItTPgpxWtrA== X-Received: by 2002:a62:fd0b:: with SMTP id p11-v6mr26498302pfh.52.1530555063334; Mon, 02 Jul 2018 11:11:03 -0700 (PDT) Received: from mka.mtv.corp.google.com ([2620:0:1000:1501:8e2d:4727:1211:622]) by smtp.gmail.com with ESMTPSA id h75-v6sm10048372pfh.86.2018.07.02.11.11.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 Jul 2018 11:11:02 -0700 (PDT) From: Matthias Kaehlcke To: Andy Gross , David Brown , Rob Herring , Mark Rutland , Catalin Marinas , Will Deacon Cc: linux-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, David Collins , Douglas Anderson , Stephen Boyd , Matthias Kaehlcke Subject: [PATCH v2 2/2] arm64: dts: qcom: pm8998: Add pm8998 thermal zone Date: Mon, 2 Jul 2018 11:10:05 -0700 Message-Id: <20180702181005.18247-2-mka@chromium.org> X-Mailer: git-send-email 2.18.0.399.gad0ab374a1-goog In-Reply-To: <20180702181005.18247-1-mka@chromium.org> References: <20180702181005.18247-1-mka@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The thermal zone uses spmi-temp-alarm as sensor. If the sensor is configured without an IIO input it always reports 37°C for temperatures below the first hardware trip point at 105°C. This hardware trip point is configured as critical trip point, to initiate a system shutdown before the temperature reaches the next hardware trip point at 125°C, where the PMIC performs a partial shutdown. The temperature of the critical trip point can be raised after adding the die temperature ADC as IIO input for spmi-temp-alarm, which significantly increases the precision of the temperature measurements. Signed-off-by: Matthias Kaehlcke --- Changes in v2: - defined 'thermal-zones' node in pm8998.dtsi instead of using a label to refer to it - use 105°C hardware trip point as critical trip point - reduced number of trip points to 2 - lowered temperature of passive trip point - updated trip point names and added labels - updated commit message arch/arm64/boot/dts/qcom/pm8998.dtsi | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/pm8998.dtsi b/arch/arm64/boot/dts/qcom/pm8998.dtsi index 2f4989e7ef68..e7caa334e6c7 100644 --- a/arch/arm64/boot/dts/qcom/pm8998.dtsi +++ b/arch/arm64/boot/dts/qcom/pm8998.dtsi @@ -3,6 +3,7 @@ #include #include +#include &spmi_bus { pm8998_lsid0: pmic@0 { @@ -60,3 +61,27 @@ #size-cells = <0>; }; }; + +/ { + thermal-zones { + pm8998 { + polling-delay-passive = <250>; + polling-delay = <1000>; + + thermal-sensors = <&pm8998_temp>; + + trips { + pm8998_alert0: pm8998-alert0 { + temperature = <95000>; + hysteresis = <2000>; + type = "passive"; + }; + pm8998_crit: pm8998-crit { + temperature = <105000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + }; + }; +}; -- 2.18.0.399.gad0ab374a1-goog