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From:   Bryan Brattlof <bb@ti.com>
To:     "Rafael J. Wysocki" <rafael@kernel.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Amit Kucheria <amitk@kernel.org>,
        Zhang Rui <rui.zhang@intel.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Nishanth Menon <nm@ti.com>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>
CC:     Keerthy <j-keerthy@ti.com>, Linux PM <linux-pm@vger.kernel.org>,
        Device Trees <devicetree@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        LKML ARM <linux-arm-kernel@lists.infradead.org>,
        Bryan Brattlof <bb@ti.com>
Subject: [PATCH v2 10/11] arm64: dts: ti: k3-j721s2-mcu-wakeup: add VTM node
Date:   Tue, 25 Oct 2022 14:15:14 -0500
Message-ID: <20221025191515.9151-11-bb@ti.com>
In-Reply-To: <20221025191515.9151-1-bb@ti.com>
References: <20221025191515.9151-1-bb@ti.com>
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The j721s2 supports a single Voltage and Thermal Management (VTM) device
located in the wakeup domain with seven associated temperature monitors
located in various hot spots on the die.

Signed-off-by: Bryan Brattlof <bb@ti.com>
---
 .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi     |   8 ++
 arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi | 103 ++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-j721s2.dtsi         |   3 +
 3 files changed, 114 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index 4d1bfabd1313a..8287fd32c42f3 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -299,4 +299,12 @@ cpts@3d000 {
 			ti,cpts-periodic-outputs = <2>;
 		};
 	};
+
+	vtm0: temperature-sensor@42040000 {
+		compatible = "ti,j7200-vtm";
+		reg = <0x0 0x42040000 0x0 0x350>,
+		      <0x0 0x42050000 0x0 0x350>;
+		power-domains = <&k3_pds 154 TI_SCI_PD_SHARED>;
+		#thermal-sensor-cells = <1>;
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi
new file mode 100644
index 0000000000000..c51009536756e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/thermal/thermal.h>
+
+thermal_zones: thermal-zones {
+	wkup0_thermal: wkup0-thermal {
+		polling-delay-passive = <250>;	/* milliSeconds */
+		polling-delay = <500>;		/* milliSeconds */
+		thermal-sensors = <&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 = <&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 = <&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 = <&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 = <&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 = <&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 = <&vtm0 6>;
+
+		trips {
+			main4_crit: main4-crit {
+				temperature = <125000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
index 7b930a85a29d6..33ea52e28b24f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
@@ -161,6 +161,9 @@ cbass_mcu_wakeup: bus@28380000 {
 		};
 
 	};
+
+	#include "k3-j721s2-thermal.dtsi"
+
 };
 
 /* Now include peripherals from each bus segment */
-- 
2.38.1