From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755980AbaHFKZd (ORCPT ); Wed, 6 Aug 2014 06:25:33 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:2244 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754065AbaHFKZb (ORCPT ); Wed, 6 Aug 2014 06:25:31 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Wed, 06 Aug 2014 03:16:45 -0700 From: Mikko Perttunen To: , , , CC: , , , , Mikko Perttunen Subject: [PATCH v3 1/4] of: Add bindings for nvidia,tegra124-soctherm Date: Wed, 6 Aug 2014 13:25:03 +0300 Message-ID: <1407320706-17440-2-git-send-email-mperttunen@nvidia.com> X-Mailer: git-send-email 1.8.1.5 In-Reply-To: <1407320706-17440-1-git-send-email-mperttunen@nvidia.com> References: <1407320706-17440-1-git-send-email-mperttunen@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds binding documentation and headers for the Tegra124 SOCTHERM device tree node. Signed-off-by: Mikko Perttunen --- v3: updated text slightly, added example using define .../devicetree/bindings/thermal/tegra-soctherm.txt | 53 ++++++++++++++++++++++ include/dt-bindings/thermal/tegra124-soctherm.h | 13 ++++++ 2 files changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/tegra-soctherm.txt create mode 100644 include/dt-bindings/thermal/tegra124-soctherm.h diff --git a/Documentation/devicetree/bindings/thermal/tegra-soctherm.txt b/Documentation/devicetree/bindings/thermal/tegra-soctherm.txt new file mode 100644 index 0000000..ecf3ed7 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/tegra-soctherm.txt @@ -0,0 +1,53 @@ +Tegra124 SOCTHERM thermal management system + +The SOCTHERM IP block contains thermal sensors, support for polled +or interrupt-based thermal monitoring, CPU and GPU throttling based +on temperature trip points, and handling external overcurrent +notifications. It is also used to manage emergency shutdown in an +overheating situation. + +Required properties : +- compatible : "nvidia,tegra124-soctherm". +- reg : Should contain 1 entry: + - SOCTHERM register set +- interrupts : Defines the interrupt used by SOCTHERM +- clocks : Must contain an entry for each entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names : Must include the following entries: + - tsensor + - soctherm +- resets : Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names : Must include the following entries: + - soctherm +- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description + of this property. See for a + list of valid values when referring to thermal sensors. + + +Example : + + soctherm@0,700e2000 { + compatible = "nvidia,tegra124-soctherm"; + reg = <0x0 0x700e2000 0x0 0x1000>; + interrupts = ; + clocks = <&tegra_car TEGRA124_CLK_TSENSOR>, + <&tegra_car TEGRA124_CLK_SOC_THERM>; + clock-names = "tsensor", "soctherm"; + resets = <&tegra_car 78>; + reset-names = "soctherm"; + + #thermal-sensor-cells = <1>; + }; + +Example: referring to thermal sensors : + + thermal-zones { + cpu { + polling-delay-passive = <1000>; + polling-delay = <1000>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>; + }; + }; diff --git a/include/dt-bindings/thermal/tegra124-soctherm.h b/include/dt-bindings/thermal/tegra124-soctherm.h new file mode 100644 index 0000000..85aaf66 --- /dev/null +++ b/include/dt-bindings/thermal/tegra124-soctherm.h @@ -0,0 +1,13 @@ +/* + * This header provides constants for binding nvidia,tegra124-soctherm. + */ + +#ifndef _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H +#define _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H + +#define TEGRA124_SOCTHERM_SENSOR_CPU 0 +#define TEGRA124_SOCTHERM_SENSOR_MEM 1 +#define TEGRA124_SOCTHERM_SENSOR_GPU 2 +#define TEGRA124_SOCTHERM_SENSOR_PLLX 3 + +#endif -- 1.8.1.5