dt-bindings: crypto: Convert MXS DCP to json-schema

Convert the MXS DCP binding to DT schema format using json-schema.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596595410-26921-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/crypto/fsl-dcp.txt

@@ -1,18 +0,0 @@
-Freescale DCP (Data Co-Processor) found on i.MX23/i.MX28 .
-
-Required properties:
-- compatible : Should be "fsl,<soc>-dcp"
-- reg : Should contain MXS DCP registers location and length
-- interrupts : Should contain MXS DCP interrupt numbers, VMI IRQ and DCP IRQ
-               must be supplied, optionally Secure IRQ can be present, but
-	       is currently not implemented and not used.
-- clocks : Clock reference (only required on some SOCs: 6ull and 6sll).
-- clock-names : Must be "dcp".
-
-Example:
-
-dcp: crypto@80028000 {
-	compatible = "fsl,imx28-dcp", "fsl,imx23-dcp";
-	reg = <0x80028000 0x2000>;
-	interrupts = <52 53>;
-};

Documentation/devicetree/bindings/crypto/fsl-dcp.yaml

@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/fsl-dcp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale DCP (Data Co-Processor) found on i.MX23/i.MX28
+
+maintainers:
+  - Marek Vasut <marex@denx.de>
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx23-dcp
+      - fsl,imx28-dcp
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: Should contain MXS DCP interrupt numbers, VMI IRQ and DCP IRQ
+      must be supplied, optionally Secure IRQ can be present, but is currently
+      not implemented and not used.
+    items:
+      - description: MXS DCP VMI interrupt
+      - description: MXS DCP DCP interrupt
+      - description: MXS DCP secure interrupt
+    minItems: 2
+    maxItems: 3
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: dcp
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    crypto@80028000 {
+        compatible = "fsl,imx23-dcp";
+        reg = <0x80028000 0x2000>;
+        interrupts = <53>, <54>;
+    };