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Message-ID: <20250321145326.113211-6-clamor95@gmail.com>
Date: Fri, 21 Mar 2025 16:53:26 +0200
From: Svyatoslav Ryhel <clamor95@...il.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>,
	Lukasz Luba <lukasz.luba@....com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Thierry Reding <treding@...dia.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Svyatoslav Ryhel <clamor95@...il.com>
Cc: linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 5/5] ARM: tegra: Add SOCTHERM support on Tegra114

Add SOCTHERM and thermal zones nodes into common Tegra 4 device tree.

Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
---
 arch/arm/boot/dts/nvidia/tegra114.dtsi | 204 +++++++++++++++++++++++++
 1 file changed, 204 insertions(+)

diff --git a/arch/arm/boot/dts/nvidia/tegra114.dtsi b/arch/arm/boot/dts/nvidia/tegra114.dtsi
index d95c1f99731e..7a4c5da76080 100644
--- a/arch/arm/boot/dts/nvidia/tegra114.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra114.dtsi
@@ -5,6 +5,7 @@
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/tegra114-car.h>
+#include <dt-bindings/thermal/tegra124-soctherm.h>
 #include <dt-bindings/soc/tegra-pmc.h>
 
 #include "tegra114-peripherals-opp.dtsi"
@@ -263,6 +264,7 @@ actmon: actmon@...0c800 {
 		operating-points-v2 = <&emc_bw_dfs_opp_table>;
 		interconnects = <&mc TEGRA114_MC_MPCORER &emc>;
 		interconnect-names = "cpu-read";
+		#cooling-cells = <2>;
 	};
 
 	gpio: gpio@...0d000 {
@@ -711,6 +713,48 @@ mipi: mipi@...e3000 {
 		#nvidia,mipi-calibrate-cells = <1>;
 	};
 
+	soctherm: thermal-sensor@...e2000 {
+		compatible = "nvidia,tegra114-soctherm";
+		reg = <0x700e2000 0x600>, /* SOC_THERM reg_base */
+		      <0x60006000 0x400>; /* CAR reg_base */
+		reg-names = "soctherm-reg", "car-reg";
+		interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "thermal", "edp";
+		clocks = <&tegra_car TEGRA114_CLK_TSENSOR>,
+			 <&tegra_car TEGRA114_CLK_SOC_THERM>;
+		clock-names = "tsensor", "soctherm";
+		resets = <&tegra_car 78>;
+		reset-names = "soctherm";
+
+		assigned-clocks = <&tegra_car TEGRA114_CLK_TSENSOR>,
+				  <&tegra_car TEGRA114_CLK_SOC_THERM>;
+		assigned-clock-rates = <500000>, <51000000>;
+
+		assigned-clock-parents = <&tegra_car TEGRA114_CLK_CLK_M>,
+					 <&tegra_car TEGRA114_CLK_PLL_P>;
+
+		#thermal-sensor-cells = <1>;
+
+		throttle-cfgs {
+			throttle_heavy: heavy {
+				nvidia,priority = <100>;
+				nvidia,cpu-throt-percent = <80>;
+				nvidia,gpu-throt-level = <TEGRA_SOCTHERM_THROT_LEVEL_HIGH>;
+
+				#cooling-cells = <2>;
+			};
+
+			throttle_light: light {
+				nvidia,priority = <80>;
+				nvidia,cpu-throt-percent = <50>;
+				nvidia,gpu-throt-level = <TEGRA_SOCTHERM_THROT_LEVEL_MED>;
+
+				#cooling-cells = <2>;
+			};
+		};
+	};
+
 	dfll: clock@...10000 {
 		compatible = "nvidia,tegra114-dfll";
 		reg = <0x70110000 0x100>, /* DFLL control */
@@ -875,24 +919,32 @@ cpu0: cpu@0 {
 			clock-names = "cpu_g", "cpu_lp", "pll_x", "pll_p", "dfll";
 			/* FIXME: what's the actual transition time? */
 			clock-latency = <300000>;
+
+			#cooling-cells = <2>;
 		};
 
 		cpu1: cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <1>;
+
+			#cooling-cells = <2>;
 		};
 
 		cpu2: cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <2>;
+
+			#cooling-cells = <2>;
 		};
 
 		cpu3: cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <3>;
+
+			#cooling-cells = <2>;
 		};
 	};
 
@@ -905,6 +957,158 @@ pmu {
 		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
 	};
 
+	thermal-zones {
+		cpu-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
+
+			trips {
+				cpu-shutdown-trip {
+					temperature = <102000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+
+				cpu_throttle_trip: cpu-throttle-trip {
+					temperature = <100000>;
+					hysteresis = <1000>;
+					type = "hot";
+				};
+
+				cpu_balanced_trip: cpu-balanced-trip {
+					temperature = <90000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_throttle_trip>;
+					cooling-device = <&throttle_heavy 1 1>;
+				};
+
+				map1 {
+					trip = <&cpu_balanced_trip>;
+					cooling-device = <&throttle_light 1 1>;
+				};
+			};
+		};
+
+		mem-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_MEM>;
+
+			trips {
+				mem-shutdown-trip {
+					temperature = <102000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+
+				mem_throttle_trip: mem-throttle-trip {
+					temperature = <100000>;
+					hysteresis = <1000>;
+					type = "hot";
+				};
+
+				mem_balanced_trip: mem-balanced-trip {
+					temperature = <90000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				/*
+				 * There are currently no cooling maps,
+				 * because there are no cooling devices.
+				 */
+			};
+		};
+
+		gpu-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_GPU>;
+
+			trips {
+				gpu-shutdown-trip {
+					temperature = <102000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+
+				gpu_throttle_trip: gpu-throttle-trip {
+					temperature = <100000>;
+					hysteresis = <1000>;
+					type = "hot";
+				};
+
+				gpu_balanced_trip: gpu-balanced-trip {
+					temperature = <90000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpu_throttle_trip>;
+					cooling-device = <&throttle_heavy 1 1>;
+				};
+
+				map1 {
+					trip = <&gpu_balanced_trip>;
+					cooling-device = <&throttle_light 1 1>;
+				};
+			};
+		};
+
+		pllx-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+
+			thermal-sensors =
+				<&soctherm TEGRA124_SOCTHERM_SENSOR_PLLX>;
+
+			trips {
+				pllx-shutdown-trip {
+					temperature = <102000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+
+				pllx_throttle_trip: pllx-throttle-trip {
+					temperature = <100000>;
+					hysteresis = <1000>;
+					type = "hot";
+				};
+
+				pllx_balanced_trip: pllx-balanced-trip {
+					temperature = <90000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				/*
+				 * There are currently no cooling maps,
+				 * because there are no cooling devices.
+				 */
+			};
+		};
+	};
+
 	timer {
 		compatible = "arm,armv7-timer";
 		interrupts =
-- 
2.43.0


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