From patchwork Wed Jun 16 19:04:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12325793 X-Patchwork-Delegate: daniel.lezcano@linaro.org 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 1A7DEC48BE6 for ; Wed, 16 Jun 2021 19:05:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F26B66008E for ; Wed, 16 Jun 2021 19:05:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232321AbhFPTHo (ORCPT ); Wed, 16 Jun 2021 15:07:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232299AbhFPTHm (ORCPT ); Wed, 16 Jun 2021 15:07:42 -0400 Received: from mail-lf1-x12e.google.com (mail-lf1-x12e.google.com [IPv6:2a00:1450:4864:20::12e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E84B7C061574; Wed, 16 Jun 2021 12:05:34 -0700 (PDT) Received: by mail-lf1-x12e.google.com with SMTP id r5so6048193lfr.5; Wed, 16 Jun 2021 12:05:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=D90UFhsacTVshn6p9/Z2whQb2PME8KBmF7aqJRvgxxk=; b=HeSBQ3KSULU7O3+Zub7WEp92A4a5BKP+lpQjN6vCOKWALQzgkKYUSAcOpii68+nIXn 4t2pkNVNAX7Cig9hd4XrtMkBzwqFu/CzzQbnb1/cyw6uAQeGPZ8st7G43h//2b85jR9a mp7sJcTuM08eFPnuWmVGrqY4nVTqXLDwKOJNY208NrNzPGTuKC8/QhDmYEr5wjKSLGru W883vIZAxQAN7adohrhW4J7HTBbHDNKN7Fmkr7+SfhQkqIzcIPkBUCejz3yTDC5gEsIK D713PPR6NWlfuKKqcV1mI1v3Asvl4NZYfgWWZ81WToxY/vXPMOzNkaQ+AyC7uL9BUDlN EtOw== 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=D90UFhsacTVshn6p9/Z2whQb2PME8KBmF7aqJRvgxxk=; b=H3fC2JXVQRfJOCc70oYH4dtOgSQ9wpB0HH8Kntli2Fzu+Ik5iORZalHLIXno+Sw4Yb ToK2Iww7D1Xxkx0N5o1xQ8SOaOHlRaCGQeBjhUhhPXOJKPTwdsEeEe/msoQ1BDRVt5fg FtR2gwcRrk9aCBJ49bRHK/28m5Nbh1GJ9BZM+WLoOt51eQFIbVjy0jUAyzoEpMcP+8QI tBGBAD8QGkVzQxTkW3DLBf/XO2l90LhM4tJa8tQX0c8H9eWWJyaa2lkFORd9lLc4Hmpz WFFos1+DLJTYD03cafHIbA4U9GywQXaMea2Ky62BFZ/SBV8XHMrkerP6KjFdN3OMCXjb //Hg== X-Gm-Message-State: AOAM533JqnUQNOtvhHOCuhxwT31DlL0L8vVlMkiqyfpZHSbD/u+ikJJ0 1mOTOWGJmM8iUu90hwW/xPs= X-Google-Smtp-Source: ABdhPJw/wpYLL9eX5hYjEcQr4sKSGPA5j7h8Mt/KKQsxKdT1nwDh5vA6cwnUutXp5qIHVyxuDlqrkA== X-Received: by 2002:a05:6512:3588:: with SMTP id m8mr909981lfr.309.1623870333294; Wed, 16 Jun 2021 12:05:33 -0700 (PDT) Received: from localhost.localdomain (94-29-29-31.dynamic.spd-mgts.ru. [94.29.29.31]) by smtp.gmail.com with ESMTPSA id e20sm365951ljk.67.2021.06.16.12.05.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Jun 2021 12:05:33 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Zhang Rui , Daniel Lezcano , Amit Kucheria , Andreas Westman Dorcsak , Maxim Schwalm , Svyatoslav Ryhel , Ihor Didenko , Ion Agorria , Matt Merhar , Peter Geis Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v4 6/6] ARM: tegra: Add SoC thermal sensor to Tegra30 device-trees Date: Wed, 16 Jun 2021 22:04:17 +0300 Message-Id: <20210616190417.32214-7-digetx@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210616190417.32214-1-digetx@gmail.com> References: <20210616190417.32214-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add the on-chip SoC thermal sensor to Tegra30 device-trees. Now CPU temperature reporting and thermal throttling is available on all Tegra30 devices universally. Signed-off-by: Dmitry Osipenko --- arch/arm/boot/dts/tegra30.dtsi | 87 ++++++++++++++++++++++++++++++++-- 1 file changed, 83 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index c577c191be4b..404b6ecc9c20 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -5,6 +5,7 @@ #include #include #include +#include #include "tegra30-peripherals-opp.dtsi" @@ -800,6 +801,20 @@ fuse@7000f800 { reset-names = "fuse"; }; + tsensor: tsensor@70014000 { + compatible = "nvidia,tegra30-tsensor"; + reg = <0x70014000 0x500>; + interrupts = ; + clocks = <&tegra_car TEGRA30_CLK_TSENSOR>; + resets = <&tegra_car TEGRA30_CLK_TSENSOR>; + + assigned-clocks = <&tegra_car TEGRA30_CLK_TSENSOR>; + assigned-clock-parents = <&tegra_car TEGRA30_CLK_CLK_M>; + assigned-clock-rates = <500000>; + + #thermal-sensor-cells = <1>; + }; + hda@70030000 { compatible = "nvidia,tegra30-hda"; reg = <0x70030000 0x10000>; @@ -1062,32 +1077,36 @@ cpus { #address-cells = <1>; #size-cells = <0>; - cpu@0 { + cpu0: cpu@0 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0>; clocks = <&tegra_car TEGRA30_CLK_CCLK_G>; + #cooling-cells = <2>; }; - cpu@1 { + cpu1: cpu@1 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <1>; clocks = <&tegra_car TEGRA30_CLK_CCLK_G>; + #cooling-cells = <2>; }; - cpu@2 { + cpu2: cpu@2 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <2>; clocks = <&tegra_car TEGRA30_CLK_CCLK_G>; + #cooling-cells = <2>; }; - cpu@3 { + cpu3: cpu@3 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <3>; clocks = <&tegra_car TEGRA30_CLK_CCLK_G>; + #cooling-cells = <2>; }; }; @@ -1102,4 +1121,64 @@ pmu { <&{/cpus/cpu@2}>, <&{/cpus/cpu@3}>; }; + + thermal-zones { + tsensor-channel0 { + polling-delay-passive = <1000>; /* milliseconds */ + polling-delay = <5000>; /* milliseconds */ + + thermal-sensors = <&tsensor 0>; + + trips { + level1_trip: dvfs-alert { + /* throttle at 80C until temperature drops to 79.8C */ + temperature = <80000>; + hysteresis = <200>; + type = "passive"; + }; + + level2_trip: cpu-div2-throttle { + /* hardware CPU x2 freq throttle at 85C */ + temperature = <85000>; + hysteresis = <200>; + type = "hot"; + }; + + level3_trip: soc-critical { + /* hardware shut down at 90C */ + temperature = <90000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&level1_trip>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&actmon THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + + tsensor-channel1 { + status = "disabled"; + + polling-delay-passive = <1000>; /* milliseconds */ + polling-delay = <0>; /* milliseconds */ + + thermal-sensors = <&tsensor 1>; + + trips { + dvfs-alert { + temperature = <80000>; + hysteresis = <200>; + type = "passive"; + }; + }; + }; + }; };