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diff --git a/Documentation/devicetree/bindings/i2c/renesas,rmobile-iic.yaml b/Documentation/devicetree/bindings/i2c/renesas,rmobile-iic.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/renesas,rmobile-iic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Mobile I2C Bus Interface (IIC)
+
+maintainers:
+  - Wolfram Sang <wsa+renesas@sang-engineering.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - renesas,iic-r8a73a4      # R-Mobile APE6
+              - renesas,iic-r8a7740      # R-Mobile A1
+              - renesas,iic-sh73a0       # SH-Mobile AG5
+          - const: renesas,rmobile-iic   # Generic
+
+      - items:
+          - enum:
+              - renesas,iic-r8a7742      # RZ/G1H
+              - renesas,iic-r8a7743      # RZ/G1M
+              - renesas,iic-r8a7744      # RZ/G1N
+              - renesas,iic-r8a7745      # RZ/G1E
+              - renesas,iic-r8a7790      # R-Car H2
+              - renesas,iic-r8a7791      # R-Car M2-W
+              - renesas,iic-r8a7792      # R-Car V2H
+              - renesas,iic-r8a7793      # R-Car M2-N
+              - renesas,iic-r8a7794      # R-Car E2
+          - const: renesas,rcar-gen2-iic # R-Car Gen2 and RZ/G1
+          - const: renesas,rmobile-iic   # Generic
+
+      - items:
+          - enum:
+              - renesas,iic-r8a774a1     # RZ/G2M
+              - renesas,iic-r8a774b1     # RZ/G2N
+              - renesas,iic-r8a774c0     # RZ/G2E
+              - renesas,iic-r8a774e1     # RZ/G2H
+              - renesas,iic-r8a7795      # R-Car H3
+              - renesas,iic-r8a7796      # R-Car M3-W
+              - renesas,iic-r8a77961     # R-Car M3-W+
+              - renesas,iic-r8a77965     # R-Car M3-N
+              - renesas,iic-r8a77990     # R-Car E3
+          - const: renesas,rcar-gen3-iic # R-Car Gen3 and RZ/G2
+          - const: renesas,rmobile-iic   # Generic
+
+  reg:
+    maxItems: 1
+
+  interrupts: true
+
+  clock-frequency:
+    description:
+      Desired I2C bus clock frequency in Hz. The absence of this property
+      indicates the default frequency 100 kHz.
+
+  clocks:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  dmas:
+    minItems: 2
+    maxItems: 4
+    description:
+      Must contain a list of pairs of references to DMA specifiers, one for
+      transmission, and one for reception.
+
+  dma-names:
+    minItems: 2
+    maxItems: 4
+    items:
+      enum:
+        - tx
+        - rx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - power-domains
+  - '#address-cells'
+  - '#size-cells'
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,iic-r8a7740
+              - renesas,iic-sh73a0
+    then:
+      properties:
+        interrupts:
+          items:
+            - description: Arbitration Lost Interrupt (ALI)
+            - description: Non-acknowledge Detection Interrupt (TACKI)
+            - description: Wait Interrupt (WAITI)
+            - description: Data Transmit Enable interrupt (DTEI)
+    else:
+      properties:
+        interrupts:
+          items:
+            - description: Single combined interrupt
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,rcar-gen2-iic
+              - renesas,rcar-gen3-iic
+    then:
+      required:
+        - resets
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a7790-sysc.h>
+
+    iic0: i2c@e6500000 {
+            compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic",
+                         "renesas,rmobile-iic";
+            reg = <0xe6500000 0x425>;
+            interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cpg CPG_MOD 318>;
+            clock-frequency = <400000>;
+            dmas = <&dmac0 0x61>, <&dmac0 0x62>, <&dmac1 0x61>, <&dmac1 0x62>;
+            dma-names = "tx", "rx", "tx", "rx";
+            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+            resets = <&cpg 318>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+    };