| 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 : For Tegra124, must contain "nvidia,tegra124-soctherm". |
| For Tegra132, must contain "nvidia,tegra132-soctherm". |
| For Tegra210, must contain "nvidia,tegra210-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 <dt-bindings/thermal/tegra124-soctherm.h> 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 = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; |
| 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>; |
| }; |
| }; |