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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 v3 11/11] arm64: dts: ti: k3-j7200-mcu-wakeup: add VTM node
Date:   Mon, 31 Oct 2022 18:27:02 -0500
Message-ID: <20221031232702.10339-12-bb@ti.com>
In-Reply-To: <20221031232702.10339-1-bb@ti.com>
References: <20221031232702.10339-1-bb@ti.com>
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The j7200 supports a single Voltage and Thermal Management (VTM) device
located in the wakeup domain with three associated temperature monitors
located in various hot spots on the die.

Signed-off-by: Bryan Brattlof <bb@ti.com>
---
 .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi      |  8 ++++
 arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi  | 47 +++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-j7200.dtsi          |  3 ++
 3 files changed, 58 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index e5be78a58682d..651d17dd20663 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -395,4 +395,12 @@ rng: rng@40910000 {
 			status = "disabled"; /* Used by OP-TEE */
 		};
 	};
+
+	vtm0: temperature-sensor@42040000 {
+		compatible = "ti,j7200-vtm";
+		reg = <0x00 0x42040000 0x00 0x350>,
+		      <0x00 0x42050000 0x00 0x350>;
+		power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>;
+		#thermal-sensor-cells = <1>;
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi
new file mode 100644
index 0000000000000..0bf52c93c3f9a
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/thermal/thermal.h>
+
+thermal_zones: thermal-zones {
+	mcu_thermal: mcu-thermal {
+		polling-delay-passive = <250>;	/* milliSeconds */
+		polling-delay = <500>;		/* milliSeconds */
+		thermal-sensors = <&vtm0 0>;
+
+		trips {
+			wkup_crit: wkup-crit {
+				temperature = <125000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+
+	mpu_thermal: mpu-thermal {
+		polling-delay-passive = <250>;	/* milliSeconds */
+		polling-delay = <500>;		/* milliSeconds */
+		thermal-sensors = <&vtm0 1>;
+
+		trips {
+			mpu_crit: mpu-crit {
+				temperature = <125000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+
+	main_thermal: main-thermal {
+		polling-delay-passive = <250>;	/* milliSeconds */
+		polling-delay = <500>;		/* milliSeconds */
+		thermal-sensors = <&vtm0 2>;
+
+		trips {
+			c7x_crit: c7x-crit {
+				temperature = <125000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
index b6da0454cc5bd..9368a6e3d4a62 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
@@ -168,6 +168,9 @@ cbass_mcu_wakeup: bus@28380000 {
 				 <0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>; /* FSS OSPI1 data region 3 */
 		};
 	};
+
+	#include "k3-j7200-thermal.dtsi"
+
 };
 
 /* Now include the peripherals for each bus segments */
-- 
2.38.1