dt-bindings: clock: nxp,lpc3220-clk: Convert bindings to DT schema

Convert the NXP LPC32xx Clock Controller bindings to yaml format.

Cc: Daniel Baluta <[email protected]>
Signed-off-by: Animesh Agarwal <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

Author: AnimeshAgarwal28

Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt

@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,lpc3220-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC32xx Clock Controller
+
+maintainers:
+  - Animesh Agarwal <[email protected]>
+
+properties:
+  compatible:
+    const: nxp,lpc3220-clk
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  clocks:
+    minItems: 1
+    items:
+      - description: External 32768 Hz oscillator.
+      - description: Optional high frequency oscillator.
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: xtal_32k
+      - const: xtal
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@0 {
+        compatible = "nxp,lpc3220-clk";
+        reg = <0x00 0x114>;
+        #clock-cells = <1>;
+        clocks = <&xtal_32k>, <&xtal>;
+        clock-names = "xtal_32k", "xtal";
+    };