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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/serial/renesas,em-uart.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Renesas EMMA Mobile UART Interface
+
+maintainers:
+ - Magnus Damm <magnus.damm@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,r9a09g011-uart # RZ/V2M
+ - const: renesas,em-uart # generic EMMA Mobile compatible UART
+
+ - items:
+ - const: renesas,em-uart # generic EMMA Mobile compatible UART
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: UART functional clock
+ - description: Internal clock to access the registers
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: sclk
+ - const: pclk
+
+allOf:
+ - $ref: serial.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g011-uart
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ clock-names:
+ minItems: 2
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ uart0: serial@e1020000 {
+ compatible = "renesas,em-uart";
+ reg = <0xe1020000 0x38>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&usia_u0_sclk>;
+ clock-names = "sclk";
+ };