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diff --git a/Documentation/devicetree/bindings/thermal/socionext,uniphier-thermal.yaml b/Documentation/devicetree/bindings/thermal/socionext,uniphier-thermal.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/socionext,uniphier-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Socionext UniPhier thermal monitor
+
+description: |
+  This describes the devicetree bindings for thermal monitor supported by
+  PVT(Process, Voltage and Temperature) monitoring unit implemented on
+  Socionext UniPhier SoCs.
+
+maintainers:
+  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+
+properties:
+  compatible:
+    enum:
+      - socionext,uniphier-pxs2-thermal
+      - socionext,uniphier-ld20-thermal
+      - socionext,uniphier-pxs3-thermal
+
+  interrupts:
+    maxItems: 1
+
+  "#thermal-sensor-cells":
+    const: 0
+
+  socionext,tmod-calibration:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    maxItems: 2
+    description:
+      A pair of calibrated values referred from PVT, in case that the values
+      aren't set on SoC, like a reference board.
+
+required:
+  - compatible
+  - interrupts
+  - "#thermal-sensor-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    // The UniPhier thermal should be a subnode of a "syscon" compatible node.
+
+    sysctrl@61840000 {
+        compatible = "socionext,uniphier-ld20-sysctrl",
+                     "simple-mfd", "syscon";
+        reg = <0x61840000 0x10000>;
+
+        pvtctl: thermal {
+            compatible = "socionext,uniphier-ld20-thermal";
+            interrupts = <0 3 1>;
+            #thermal-sensor-cells = <0>;
+        };
+    };