arm64: dts: ti: j721s2: Add VTM node

VTM stands for Voltage Thermal Management. Add the thermal zones.
Six sensors mapping to six thermal zones. Main0, Main1, Main2, Main3,
WKUP1 & WKUP2 domains respectively.
Signed-off-by: Keerthy <j-keerthy@ti.com>
[bb@ti.com: rebased on v6.3-rc1]
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20230405215328.3755561-8-bb@ti.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>

arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi

@@ -423,4 +423,12 @@ ospi1: spi@47050000 {
 			status = "disabled"; /* Needs pinmux */
 		};
 	};
+
+	wkup_vtm0: temperature-sensor@42040000 {
+		compatible = "ti,j7200-vtm";
+		reg = <0x00 0x42040000 0x0 0x350>,
+		      <0x00 0x42050000 0x0 0x350>;
+		power-domains = <&k3_pds 154 TI_SCI_PD_SHARED>;
+		#thermal-sensor-cells = <1>;
+	};
 };

arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi

+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/thermal/thermal.h>
+
+wkup0_thermal: wkup0-thermal {
+	polling-delay-passive = <250>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
+	thermal-sensors = <&wkup_vtm0 0>;
+
+	trips {
+		wkup0_crit: wkup0-crit {
+			temperature = <125000>; /* milliCelsius */
+			hysteresis = <2000>; /* milliCelsius */
+			type = "critical";
+		};
+	};
+};
+
+wkup1_thermal: wkup1-thermal {
+	polling-delay-passive = <250>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
+	thermal-sensors = <&wkup_vtm0 1>;
+
+	trips {
+		wkup1_crit: wkup1-crit {
+			temperature = <125000>; /* milliCelsius */
+			hysteresis = <2000>; /* milliCelsius */
+			type = "critical";
+		};
+	};
+};
+
+main0_thermal: main0-thermal {
+	polling-delay-passive = <250>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
+	thermal-sensors = <&wkup_vtm0 2>;
+
+	trips {
+		main0_crit: main0-crit {
+			temperature = <125000>; /* milliCelsius */
+			hysteresis = <2000>; /* milliCelsius */
+			type = "critical";
+		};
+	};
+};
+
+main1_thermal: main1-thermal {
+	polling-delay-passive = <250>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
+	thermal-sensors = <&wkup_vtm0 3>;
+
+	trips {
+		main1_crit: main1-crit {
+			temperature = <125000>; /* milliCelsius */
+			hysteresis = <2000>; /* milliCelsius */
+			type = "critical";
+		};
+	};
+};
+
+main2_thermal: main2-thermal {
+	polling-delay-passive = <250>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
+	thermal-sensors = <&wkup_vtm0 4>;
+
+	trips {
+		main2_crit: main2-crit {
+			temperature = <125000>; /* milliCelsius */
+			hysteresis = <2000>; /* milliCelsius */
+			type = "critical";
+		};
+	};
+};
+
+main3_thermal: main3-thermal {
+	polling-delay-passive = <250>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
+	thermal-sensors = <&wkup_vtm0 5>;
+
+	trips {
+		main3_crit: main3-crit {
+			temperature = <125000>; /* milliCelsius */
+			hysteresis = <2000>; /* milliCelsius */
+			type = "critical";
+		};
+	};
+};
+
+main4_thermal: main4-thermal {
+	polling-delay-passive = <250>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
+	thermal-sensors = <&wkup_vtm0 6>;
+
+	trips {
+		main4_crit: main4-crit {
+			temperature = <125000>; /* milliCelsius */
+			hysteresis = <2000>; /* milliCelsius */
+			type = "critical";
+		};
+	};
+};

arch/arm64/boot/dts/ti/k3-j721s2.dtsi

@@ -164,6 +164,10 @@ cbass_mcu_wakeup: bus@28380000 {
 		};
 
 	};
+
+	thermal_zones: thermal-zones {
+		#include "k3-j721s2-thermal.dtsi"
+	};
 };
 
 /* Now include peripherals from each bus segment */