dt-bindings: i2c: cnxt,cx92755-i2c: Convert to DT schema

Convert the Conexant Digicolor I2C bindings to DT schema.

Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260411112451.35095-1-i.shihao.999@gmail.com

Author: i-shihao

Documentation/devicetree/bindings/i2c/cnxt,cx92755-i2c.yaml

@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/cnxt,cx92755-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Conexant Digicolor I2C controller
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+maintainers:
+  - Baruch Siach <baruch@tkos.co.il>
+
+properties:
+  compatible:
+    const: cnxt,cx92755-i2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-frequency:
+    default: 100000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c@f0000120 {
+      compatible = "cnxt,cx92755-i2c";
+      reg = <0xf0000120 0x10>;
+      interrupts = <28>;
+      clocks = <&main_clk>;
+      clock-frequency = <100000>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+    };