From patchwork Sun Jul 4 18:02:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: thermal-bot for Lad Prabhakar X-Patchwork-Id: 470113 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=-20.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 BB9D9C07E9C for ; Sun, 4 Jul 2021 18:02:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A472A613D1 for ; Sun, 4 Jul 2021 18:02:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229733AbhGDSFI (ORCPT ); Sun, 4 Jul 2021 14:05:08 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:55804 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229703AbhGDSFH (ORCPT ); Sun, 4 Jul 2021 14:05:07 -0400 Date: Sun, 04 Jul 2021 18:02:30 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1625421751; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=yNgo2oS78nrgzLa+B3VMpLyLNI5KLwP9WaN0oC4L/fM=; b=LmDmL8DJlJ7RIjoWqowLJP0cqJ/GqSGpu3Me2dHd7AxWn0ixVl803dY7wd4TtpE1lEwI20 OU6HPWwRr3kvXIe68nIE78BvmbkhItbPFpopiDwWl5Ugqn2E9jQgQ1oNRlr3c03Hj3aoHw KaS+PyRI2WgT4FEHlW1ZyYo3auvOzjMj5XHKinu4cpvyTUmroDS1tDkbgU+fi9pYj4soCs kVtBiBJdn5qMdGOLQf+h49n5ogCEZXnXidHvVOnxbsAbAj0P/+CHWpF8GxLW6WX2aWxaAE AF9AgUBnm1Ch0U0s/TZlPVcCShD0Xyhc/QroDeo7eykWAcW2+2UpzWN+RQ0zGA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1625421751; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=yNgo2oS78nrgzLa+B3VMpLyLNI5KLwP9WaN0oC4L/fM=; b=hiUWMG1anALbKofim73DvhVYbuH/UUkDKk4sX4V0HbhWCjDjpU3tqTElL3yWcJuDflFGT/ 95BCsXMlSuAqWICg== From: "thermal-bot for Dmitry Osipenko" Sender: tip-bot2@linutronix.de Reply-to: linux-pm@vger.kernel.org To: linux-pm@vger.kernel.org Subject: [thermal: thermal/next] dt-bindings: thermal: Add binding for Tegra30 thermal sensor Cc: Rob Herring , Dmitry Osipenko , Daniel Lezcano , rui.zhang@intel.com, amitk@kernel.org In-Reply-To: <20210616190417.32214-2-digetx@gmail.com> References: <20210616190417.32214-2-digetx@gmail.com> MIME-Version: 1.0 Message-ID: <162542175098.395.14502576173055219105.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The following commit has been merged into the thermal/next branch of thermal: Commit-ID: 1aab6b81af3c96e3181911140d2528e112335bef Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git//1aab6b81af3c96e3181911140d2528e112335bef Author: Dmitry Osipenko AuthorDate: Wed, 16 Jun 2021 22:04:12 +03:00 Committer: Daniel Lezcano CommitterDate: Sun, 04 Jul 2021 18:28:04 +02:00 dt-bindings: thermal: Add binding for Tegra30 thermal sensor All NVIDIA Tegra30 SoCs have on-chip sensors which monitor temperature and voltage of the SoC. Sensors also controls CPU x2 freq throttle and emits emergency shutdown signal. TSENSOR has has two separate channels for each sensor placed in a different parts of the SoC. Add binding for the sensor hardware. Reviewed-by: Rob Herring Signed-off-by: Dmitry Osipenko Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20210616190417.32214-2-digetx@gmail.com --- Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml b/Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml new file mode 100644 index 0000000..a35da25 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/nvidia,tegra30-tsensor.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra30 Thermal Sensor + +maintainers: + - Dmitry Osipenko + - Jon Hunter + - Thierry Reding + +description: | + TSENSOR provides thermal and voltage sensors which monitor temperature + and voltage of the chip. Sensors are placed across the die to gauge the + temperature of the whole chip. The TSENSOR module: + + Generates an interrupt to SW to lower temperature via DVFS on reaching + a certain thermal/voltage threshold. + + Generates a signal to the CAR to reduce CPU frequency by half on reaching + a certain thermal/voltage threshold. + + Generates a signal to the PMC when the temperature reaches dangerously high + levels to reset the chip and sets a flag in the PMC. + + TSENSOR has two channels which monitor two different spots of the SoC. + +properties: + compatible: + const: nvidia,tegra30-tsensor + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + interrupts: + maxItems: 1 + + "#thermal-sensor-cells": + const: 1 + + assigned-clock-parents: true + assigned-clock-rates: true + assigned-clocks: true + +required: + - compatible + - reg + - clocks + - resets + - interrupts + - "#thermal-sensor-cells" + +additionalProperties: false + +examples: + - | + thermal-sensor@70014000 { + compatible = "nvidia,tegra30-tsensor"; + reg = <0x70014000 0x500>; + interrupts = <0 102 4>; + clocks = <&clk 100>; + resets = <&rst 100>; + + #thermal-sensor-cells = <1>; + };