dt-bindings: i2c: renesas,iic-emev2: Convert to json-schema

Convert the Renesas EMMA Mobile EV2 IIC Interface (IIC) Device Tree
binding documentation to json-schema.

Document missing properties.
Update the example to match reality.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

2 files changed, 54 insertions, 22 deletions

diff --git a/Documentation/devicetree/bindings/i2c/renesas,iic-emev2.txt b/Documentation/devicetree/bindings/i2c/renesas,iic-emev2.txt
deleted file mode 100644
index 5ed1ea1c7e14..000000000000
--- a/Documentation/devicetree/bindings/i2c/renesas,iic-emev2.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Device tree configuration for Renesas EMEV2 IIC controller
-
-Required properties:
-- compatible      : "renesas,iic-emev2"
-- reg             : address start and address range size of device
-- interrupts      : specifier for the IIC controller interrupt
-- clocks          : phandle to the IP core SCLK
-- clock-names     : must be "sclk"
-- #address-cells  : should be <1>
-- #size-cells     : should be <0>
-
-Example:
-
-	iic0: i2c@e0070000 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		compatible = "renesas,iic-emev2";
-		reg = <0xe0070000 0x28>;
-		interrupts = <0 32 IRQ_TYPE_EDGE_RISING>;
-		clocks = <&iic0_sclk>;
-		clock-names = "sclk";
-	};
diff --git a/Documentation/devicetree/bindings/i2c/renesas,iic-emev2.yaml b/Documentation/devicetree/bindings/i2c/renesas,iic-emev2.yaml
new file mode 100644
index 000000000000..17c1102562be
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/renesas,iic-emev2.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/renesas,iic-emev2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas EMMA Mobile EV2 IIC Interface
+
+maintainers:
+  - Wolfram Sang <wsa+renesas@sang-engineering.com>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    const: renesas,iic-emev2
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: sclk
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - '#address-cells'
+  - '#size-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    iic0: i2c@e0070000 {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            compatible = "renesas,iic-emev2";
+            reg = <0xe0070000 0x28>;
+            interrupts = <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>;
+            clocks = <&iic0_sclk>;
+            clock-names = "sclk";
+    };