media: dt-bindings: media: renesas,jpu: Convert to json-schema

Convert the Renesas JPEG Processing Unit Device Tree binding
documentation to json-schema.

Document missing properties.
Update the example to match reality.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/devicetree/bindings/media/renesas,jpu.yaml

@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/renesas,jpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas JPEG Processing Unit
+
+maintainers:
+  - Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
+
+description:
+  The JPEG processing unit (JPU) incorporates the JPEG codec with an encoding
+  and decoding function conforming to the JPEG baseline process, so that the
+  JPU can encode image data and decode JPEG data quickly.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - renesas,jpu-r8a7790      # R-Car H2
+          - renesas,jpu-r8a7791      # R-Car M2-W
+          - renesas,jpu-r8a7792      # R-Car V2H
+          - renesas,jpu-r8a7793      # R-Car M2-N
+      - const: renesas,rcar-gen2-jpu # R-Car Gen2
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - power-domains
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a7790-sysc.h>
+
+    jpeg-codec@fe980000 {
+            compatible = "renesas,jpu-r8a7790", "renesas,rcar-gen2-jpu";
+            reg = <0xfe980000 0x10300>;
+            interrupts = <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cpg CPG_MOD 106>;
+            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+            resets = <&cpg 106>;
+    };