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diff --git a/Documentation/devicetree/bindings/timer/renesas,tpu.yaml b/Documentation/devicetree/bindings/timer/renesas,tpu.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/renesas,tpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas H8/300 Timer Pulse Unit
+
+maintainers:
+  - Yoshinori Sato <ysato@users.sourceforge.jp>
+
+description:
+  The TPU is a 16bit timer/counter with configurable clock inputs and
+  programmable compare match.
+  This implementation supports only cascade mode.
+
+select:
+  properties:
+    compatible:
+      contains:
+        const: renesas,tpu
+    '#pwm-cells': false
+  required:
+    - compatible
+
+properties:
+  compatible:
+    const: renesas,tpu
+
+  reg:
+    items:
+      - description: First channel
+      - description: Second channel
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: fck
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    tpu: tpu@ffffe0 {
+            compatible = "renesas,tpu";
+            reg = <0xffffe0 16>, <0xfffff0 12>;
+            clocks = <&pclk>;
+            clock-names = "fck";
+    };