dt-bindings: clock: Convert silabs,si514/544 to DT schema

Convert the Silicon Labs SI514 and SI544 bindings to DT schema format.
Combine the bindings into a single schema as they are the same.

Signed-off-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

Documentation/devicetree/bindings/clock/silabs,si514.txt

···
-Binding for Silicon Labs 514 programmable I2C clock generator.
-
-Reference
-This binding uses the common clock binding[1]. Details about the device can be
-found in the datasheet[2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Si514 datasheet
-    https://www.silabs.com/Support%20Documents/TechnicalDocs/si514.pdf
-
-Required properties:
- - compatible: Shall be "silabs,si514"
- - reg: I2C device address.
- - #clock-cells: From common clock bindings: Shall be 0.
-
-Optional properties:
- - clock-output-names: From common clock bindings. Recommended to be "si514".
-
-Example:
-	si514: clock-generator@55 {
-		reg = <0x55>;
-		#clock-cells = <0>;
-		compatible = "silabs,si514";
-	};

Documentation/devicetree/bindings/clock/silabs,si544.txt

···
-Binding for Silicon Labs 544 programmable I2C clock generator.
-
-Reference
-This binding uses the common clock binding[1]. Details about the device can be
-found in the datasheet[2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Si544 datasheet
-    https://www.silabs.com/documents/public/data-sheets/si544-datasheet.pdf
-
-Required properties:
- - compatible: One of "silabs,si514a", "silabs,si514b" "silabs,si514c" according
-               to the speed grade of the chip.
- - reg: I2C device address.
- - #clock-cells: From common clock bindings: Shall be 0.
-
-Optional properties:
- - clock-output-names: From common clock bindings. Recommended to be "si544".
-
-Example:
-	si544: clock-controller@55 {
-		reg = <0x55>;
-		#clock-cells = <0>;
-		compatible = "silabs,si544b";
-	};

Documentation/devicetree/bindings/clock/silabs,si544.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/silabs,si544.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs SI514/SI544 clock generator
+
+maintainers:
+  - Mike Looijmans <[e-mail]>
+
+description: >
+  Silicon Labs 514/544 programmable I2C clock generator. Details about the device
+  can be found in the datasheet:
+
+    https://www.silabs.com/Support%20Documents/TechnicalDocs/si514.pdf
+    https://www.silabs.com/documents/public/data-sheets/si544-datasheet.pdf
+
+properties:
+  compatible:
+    enum:
+      - silabs,si514
+      - silabs,si544a
+      - silabs,si544b
+      - silabs,si544c
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 0
+
+  clock-output-names:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        clock-controller@55 {
+            reg = <0x55>;
+            #clock-cells = <0>;
+            compatible = "silabs,si544b";
+        };
+    };