Based on kernel version 4.6.2. Page generated on 2016-06-08 13:06 EST.
1 Tegra124 SOCTHERM thermal management system 2 3 The SOCTHERM IP block contains thermal sensors, support for polled 4 or interrupt-based thermal monitoring, CPU and GPU throttling based 5 on temperature trip points, and handling external overcurrent 6 notifications. It is also used to manage emergency shutdown in an 7 overheating situation. 8 9 Required properties : 10 - compatible : For Tegra124, must contain "nvidia,tegra124-soctherm". 11 For Tegra132, must contain "nvidia,tegra132-soctherm". 12 For Tegra210, must contain "nvidia,tegra210-soctherm". 13 - reg : Should contain 1 entry: 14 - SOCTHERM register set 15 - interrupts : Defines the interrupt used by SOCTHERM 16 - clocks : Must contain an entry for each entry in clock-names. 17 See ../clocks/clock-bindings.txt for details. 18 - clock-names : Must include the following entries: 19 - tsensor 20 - soctherm 21 - resets : Must contain an entry for each entry in reset-names. 22 See ../reset/reset.txt for details. 23 - reset-names : Must include the following entries: 24 - soctherm 25 - #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description 26 of this property. See <dt-bindings/thermal/tegra124-soctherm.h> for a 27 list of valid values when referring to thermal sensors. 28 29 30 Example : 31 32 soctherm@0,700e2000 { 33 compatible = "nvidia,tegra124-soctherm"; 34 reg = <0x0 0x700e2000 0x0 0x1000>; 35 interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; 36 clocks = <&tegra_car TEGRA124_CLK_TSENSOR>, 37 <&tegra_car TEGRA124_CLK_SOC_THERM>; 38 clock-names = "tsensor", "soctherm"; 39 resets = <&tegra_car 78>; 40 reset-names = "soctherm"; 41 42 #thermal-sensor-cells = <1>; 43 }; 44 45 Example: referring to thermal sensors : 46 47 thermal-zones { 48 cpu { 49 polling-delay-passive = <1000>; 50 polling-delay = <1000>; 51 52 thermal-sensors = 53 <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>; 54 }; 55 };