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=-15.7 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 E9446C4338F for ; Mon, 2 Aug 2021 21:20:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D343260EEA for ; Mon, 2 Aug 2021 21:20:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232903AbhHBVUu (ORCPT ); Mon, 2 Aug 2021 17:20:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232690AbhHBVUs (ORCPT ); Mon, 2 Aug 2021 17:20:48 -0400 Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E22BCC06175F; Mon, 2 Aug 2021 14:20:37 -0700 (PDT) Received: by mail-lj1-x22e.google.com with SMTP id x7so25625149ljn.10; Mon, 02 Aug 2021 14:20:37 -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=rASBzWdiFOBTgYEDJa3bivw9a46okAlIQP0Tfm4nC8A=; b=FQiKgSsEDcoIt2H6fyFDJaNQnYuG8heZv1ZBcIr6T7Q0CK3HwqoF/3Iy3wN95pEmf4 d31ih/l9Qei4tKaXZVCzxRPXZo2Xvq6UbKLkIWSJzaR/0ElanMn/+XmNAN9ogPIFqVrC +CSTjvEVDTxHFG1jMdKy6A1eAXm5i3NtogT3e/dB6BquiDSkyayTELfit83Of3r8roli wmBuZ244KIGEWjIFNTBnz5ZxrEG+4iZsLdOXdVxr3VXygUHirA6fMUpvhofYELqbvUVO rP9p1Nbssh7fLXh7rBUr9m8qrNhShRIVDRxvEByTC1KFsbPRcuF/kuuYe8s98Ubkf5Ff 4c4g== 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=rASBzWdiFOBTgYEDJa3bivw9a46okAlIQP0Tfm4nC8A=; b=C2FwlH4oRY0V9LSrGiyZ60G2fB7Uue1TXljPmtMT+VQIfUbk4GzSxkr5mgblnDkI3z R7C6KGWDHvX4pZqYhyegtnSqmcPkLUbgyv5rhh+UtIRgfkSIKPURxMrp+WznRKTOzxNp W7VThYWlu1VdY8/WHIGufPawyReZr+JoJOdX6wzzNQOqPNUUCTSPJ/n4NNyPyz5aO81o 5LpDrZcpuJgmzGelBMd4qs/xHWTukXp8AlyqAVi//C2wLHrI2WDKVACEjFgZkP7mzodF tSur2Hq4+r8YDyLjmgHMMfEWTeogRtFJK3IPGs64T/l2V+HB9KiRVx1ismul7BKcSa2i cjyg== X-Gm-Message-State: AOAM5320bM5xUd7bQ5tC9HpFj8lxV0QVaOfI0y+Yk+GUjX5bRrLwQLFh rRE3G5VdvLvPGGPUzfWO0Yw= X-Google-Smtp-Source: ABdhPJwtPNIURT8QFecxu2moDBJdq0IjbMWXCo9xAzTSHyledhmCT7344ianMMPx/AyU4b8uYDFcUw== X-Received: by 2002:a2e:881a:: with SMTP id x26mr12492672ljh.101.1627939236319; Mon, 02 Aug 2021 14:20:36 -0700 (PDT) Received: from localhost.localdomain (94-29-22-96.dynamic.spd-mgts.ru. [94.29.22.96]) by smtp.gmail.com with ESMTPSA id p14sm764942lfa.117.2021.08.02.14.20.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Aug 2021 14:20:35 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Matt Merhar , Peter Geis Cc: Daniel Lezcano , linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v2 01/15] ARM: tegra: Add SoC thermal sensor to Tegra30 device-trees Date: Tue, 3 Aug 2021 00:19:33 +0300 Message-Id: <20210802211947.19715-2-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210802211947.19715-1-digetx@gmail.com> References: <20210802211947.19715-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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..eaf4951d9ff8 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 { + tsensor0-thermal { + 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>; + }; + }; + }; + + tsensor1-thermal { + status = "disabled"; + + polling-delay-passive = <1000>; /* milliseconds */ + polling-delay = <0>; /* milliseconds */ + + thermal-sensors = <&tsensor 1>; + + trips { + dvfs-alert { + temperature = <80000>; + hysteresis = <200>; + type = "passive"; + }; + }; + }; + }; }; -- 2.32.0