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diff --git a/Documentation/devicetree/bindings/rtc/epson,rx8900.yaml b/Documentation/devicetree/bindings/rtc/epson,rx8900.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/epson,rx8900.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EPSON RX8900 / Microcrystal RV8803 Real-Time Clock
+
+maintainers:
+  - Marek Vasut <marex@denx.de>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    enum:
+      - epson,rx8804
+      - epson,rx8900
+      - microcrystal,rv8803
+
+  reg:
+    maxItems: 1
+
+  epson,vdet-disable:
+    type: boolean
+    description: |
+      Disable voltage detector. Should be set if no backup battery is used.
+
+  trickle-diode-disable: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        rtc@32 {
+            compatible = "epson,rx8900";
+            reg = <0x32>;
+            epson,vdet-disable;
+            trickle-diode-disable;
+        };
+    };