dt-bindings: clock: Convert i.MX5 clock to json-schema

Convert the i.MX5 clock binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/clock/imx5-clock.txt

-* Clock bindings for Freescale i.MX5
-
-Required properties:
-- compatible: Should be "fsl,<soc>-ccm" , where <soc> can be imx51 or imx53
-- reg: Address and length of the register set
-- interrupts: Should contain CCM interrupt
-- #clock-cells: Should be <1>
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx5-clock.h
-for the full list of i.MX5 clock IDs.
-
-Examples (for mx53):
-
-clks: ccm@53fd4000{
-	compatible = "fsl,imx53-ccm";
-	reg = <0x53fd4000 0x4000>;
-	interrupts = <0 71 0x04 0 72 0x04>;
-	#clock-cells = <1>;
-};
-
-can1: can@53fc8000 {
-	compatible = "fsl,imx53-flexcan", "fsl,p1010-flexcan";
-	reg = <0x53fc8000 0x4000>;
-	interrupts = <82>;
-	clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>, <&clks IMX5_CLK_CAN1_SERIAL_GATE>;
-	clock-names = "ipg", "per";
-};

Documentation/devicetree/bindings/clock/imx5-clock.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/imx5-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock bindings for Freescale i.MX5
+
+maintainers:
+  - Fabio Estevam <fabio.estevam@freescale.com>
+
+description: |
+  The clock consumer should specify the desired clock by having the clock
+  ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx5-clock.h
+  for the full list of i.MX5 clock IDs.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx53-ccm
+      - fsl,imx51-ccm
+      - fsl,imx50-ccm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: CCM provides 2 interrupt requests, request 1 is to generate
+      interrupt for frequency or mux change, request 2 is to generate
+      interrupt for oscillator read or PLL lock.
+    items:
+      - description: CCM interrupt request 1
+      - description: CCM interrupt request 2
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx5-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    clock-controller@53fd4000{
+        compatible = "fsl,imx53-ccm";
+        reg = <0x53fd4000 0x4000>;
+        interrupts = <0 71 IRQ_TYPE_LEVEL_HIGH>,
+                     <0 72 IRQ_TYPE_LEVEL_HIGH>;
+        #clock-cells = <1>;
+    };
+
+    can@53fc8000 {
+        compatible = "fsl,imx53-flexcan", "fsl,p1010-flexcan";
+        reg = <0x53fc8000 0x4000>;
+        interrupts = <82>;
+        clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>, <&clks IMX5_CLK_CAN1_SERIAL_GATE>;
+        clock-names = "ipg", "per";
+    };