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diff --git a/Documentation/devicetree/bindings/serial/renesas,sci.yaml b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/serial/renesas,sci.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Renesas Serial Communication Interface
+
+maintainers:
+  - Geert Uytterhoeven <geert+renesas@glider.be>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - renesas,r9a07g043-sci     # RZ/G2UL
+              - renesas,r9a07g044-sci     # RZ/G2{L,LC}
+              - renesas,r9a07g054-sci     # RZ/V2L
+          - const: renesas,sci            # generic SCI compatible UART
+
+      - items:
+          - const: renesas,sci            # generic SCI compatible UART
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: Error interrupt
+      - description: Receive buffer full interrupt
+      - description: Transmit buffer empty interrupt
+      - description: Transmit end interrupt
+
+  interrupt-names:
+    items:
+      - const: eri
+      - const: rxi
+      - const: txi
+      - const: tei
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    maxItems: 2
+    items:
+      enum:
+        - fck # UART functional clock
+        - sck # optional external clock input
+
+  uart-has-rtscts: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - renesas,r9a07g043-sci
+          - renesas,r9a07g044-sci
+          - renesas,r9a07g054-sci
+then:
+  properties:
+    resets:
+      maxItems: 1
+
+    power-domains:
+      maxItems: 1
+
+  required:
+    - resets
+    - power-domains
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/r9a07g044-cpg.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    aliases {
+            serial0 = &sci0;
+    };
+
+    sci0: serial@1004d000 {
+            compatible = "renesas,r9a07g044-sci", "renesas,sci";
+            reg = <0x1004d000 0x400>;
+            interrupts = <GIC_SPI 405 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 406 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 407 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 408 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "eri", "rxi", "txi", "tei";
+            clocks = <&cpg CPG_MOD R9A07G044_SCI0_CLKP>;
+            clock-names = "fck";
+            power-domains = <&cpg>;
+            resets = <&cpg R9A07G044_SCI0_RST>;
+    };