From 26b76f80b32c824ea746cd17c70814f28935afc9 Mon Sep 17 00:00:00 2001 From: Mikko Perttunen Date: Fri, 26 Sep 2014 12:43:11 +0300 Subject: ARM: tegra: Add soctherm and thermal zones to Tegra124 device tree This adds the soctherm thermal sensing and management unit to the Tegra124 device tree along with the four thermal zones corresponding to the four thermal sensors provided by soctherm. Signed-off-by: Mikko Perttunen Signed-off-by: Eduardo Valentin --- arch/arm/boot/dts/tegra124.dtsi | 47 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'arch/arm/boot/dts') diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi index 478c555ebd96..41f8b274529a 100644 --- a/arch/arm/boot/dts/tegra124.dtsi +++ b/arch/arm/boot/dts/tegra124.dtsi @@ -3,6 +3,7 @@ #include #include #include +#include #include "skeleton.dtsi" @@ -640,6 +641,18 @@ status = "disabled"; }; + soctherm: thermal-sensor@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>; + }; + ahub@0,70300000 { compatible = "nvidia,tegra124-ahub"; reg = <0x0 0x70300000 0x0 0x200>, @@ -881,6 +894,40 @@ }; }; + thermal-zones { + cpu { + polling-delay-passive = <1000>; + polling-delay = <1000>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>; + }; + + mem { + polling-delay-passive = <1000>; + polling-delay = <1000>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_MEM>; + }; + + gpu { + polling-delay-passive = <1000>; + polling-delay = <1000>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_GPU>; + }; + + pllx { + polling-delay-passive = <1000>; + polling-delay = <1000>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_PLLX>; + }; + }; + timer { compatible = "arm,armv7-timer"; interrupts = Date: Fri, 26 Sep 2014 12:43:12 +0300 Subject: ARM: tegra: Add thermal trip points for Jetson TK1 This adds critical trip points to the Jetson TK1 device tree. The device will do a controlled shutdown when either the CPU, GPU or MEM thermal zone reaches 101 degrees Celsius. Signed-off-by: Mikko Perttunen Signed-off-by: Eduardo Valentin --- arch/arm/boot/dts/tegra124-jetson-tk1.dts | 44 +++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'arch/arm/boot/dts') diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts index 029c9a021541..f46a7892d269 100644 --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts @@ -1941,4 +1941,48 @@ <&tegra_car TEGRA124_CLK_EXTERN1>; clock-names = "pll_a", "pll_a_out0", "mclk"; }; + + thermal-zones { + cpu { + trips { + trip@0 { + temperature = <101000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + /* There are currently no cooling maps because there are no cooling devices */ + }; + }; + + mem { + trips { + trip@0 { + temperature = <101000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + /* There are currently no cooling maps because there are no cooling devices */ + }; + }; + + gpu { + trips { + trip@0 { + temperature = <101000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + /* There are currently no cooling maps because there are no cooling devices */ + }; + }; + }; }; -- cgit v1.2.3-59-g8ed1b