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diff --git a/dts/Bindings/spi/socionext,uniphier-spi.yaml b/dts/Bindings/spi/socionext,uniphier-spi.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/socionext,uniphier-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Socionext UniPhier SPI controller
+
+description: |
+ UniPhier SoCs have SCSSI which supports SPI single channel.
+
+maintainers:
+ - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ - Keiji Hayashibara <hayashibara.keiji@socionext.com>
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+properties:
+ "#address-cells": true
+ "#size-cells": true
+
+ compatible:
+ const: socionext,uniphier-scssi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - resets
+ - "#address-cells"
+ - "#size-cells"
+
+examples:
+ - |
+ spi0: spi@54006000 {
+ compatible = "socionext,uniphier-scssi";
+ reg = <0x54006000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0 39 4>;
+ clocks = <&peri_clk 11>;
+ resets = <&peri_rst 11>;
+ };