dt-bindings: i2c: convert axxia i2c to dt-schema

Convert the LSI Axxia I2C Controller bindings from legacy text
format to modern dt-schema (YAML).

During the conversion, the obsolete `device_type = "i2c"` property
was dropped from the example, as it is deprecated and not utilized
by the driver. The `clock-names` property is enforced as required
matching the driver probe behavior. The example node address was
also updated to a standard 32-bit address.

Signed-off-by: Chaitanya Sabnis <chaitanya.msabnis@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/20260505100854.5258-1-chaitanya.msabnis@gmail.com

Documentation/devicetree/bindings/i2c/i2c-axxia.txt

@@ -1,30 +0,0 @@
-LSI Axxia I2C
-
-Required properties :
-- compatible : Must be "lsi,api2c"
-- reg : Offset and length of the register set for the device
-- interrupts : the interrupt specifier
-- #address-cells : Must be <1>;
-- #size-cells : Must be <0>;
-- clock-names : Must contain "i2c".
-- clocks: Must contain an entry for each name in clock-names. See the common
-  clock bindings.
-
-Optional properties :
-- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified,
-  the default 100 kHz frequency will be used. As only Normal and Fast modes
-  are supported, possible values are 100000 and 400000.
-
-Example :
-
-i2c@2010084000 {
-	compatible = "lsi,api2c";
-	device_type = "i2c";
-	#address-cells = <1>;
-	#size-cells = <0>;
-	reg = <0x20 0x10084000 0x00 0x1000>;
-	interrupts = <0 19 4>;
-	clocks = <&clk_per>;
-	clock-names = "i2c";
-	clock-frequency = <400000>;
-};

Documentation/devicetree/bindings/i2c/lsi,api2c.yaml

@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/lsi,api2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LSI Axxia I2C Controller
+
+maintainers:
+  - Anders Berg <anders.berg@lsi.com>
+  - Chaitanya Sabnis <chaitanya.msabnis@gmail.com>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    const: lsi,api2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: i2c
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c@10084000 {
+        compatible = "lsi,api2c";
+        reg = <0x10084000 0x1000>;
+        interrupts = <0 19 4>;
+        clocks = <&clk_per>;
+        clock-names = "i2c";
+        clock-frequency = <400000>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };