dt-bindings: arm: Convert RDA Micro board/soc bindings to json-schema

Convert RDA Micro SoC bindings to DT schema format using json-schema.

Cc: "Andreas Färber" <afaerber@suse.de>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/arm/rda.txt

-RDA Micro platforms device tree bindings
-----------------------------------------
-
-RDA8810PL SoC
-=============
-
-Required root node properties:
-
- - compatible :  must contain "rda,8810pl"
-
-
-Boards:
-
-Root node property compatible must contain, depending on board:
-
- - Orange Pi 2G-IoT: "xunlong,orangepi-2g-iot"
- - Orange Pi i96: "xunlong,orangepi-i96"

Documentation/devicetree/bindings/arm/rda.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/rda.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RDA Micro platforms device tree bindings
+
+maintainers:
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - xunlong,orangepi-2g-iot     # Orange Pi 2G-IoT
+          - xunlong,orangepi-i96        # Orange Pi i96
+      - const: rda,8810pl
+
+...

MAINTAINERS

@@ -2095,7 +2095,7 @@ F:	arch/arm/boot/dts/rda8810pl-*
 F:	drivers/clocksource/timer-rda.c
 F:	drivers/irqchip/irq-rda-intc.c
 F:	drivers/tty/serial/rda-uart.c
-F:	Documentation/devicetree/bindings/arm/rda.txt
+F:	Documentation/devicetree/bindings/arm/rda.yaml
 F:	Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt
 F:	Documentation/devicetree/bindings/serial/rda,8810pl-uart.txt
 F:	Documentation/devicetree/bindings/timer/rda,8810pl-timer.txt