media: dt-bindings: silabs,si470x: Convert to DT schema

Convert the Silicon Labs Si470x FM Radio Receiver bindings to DT schema.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

Documentation/devicetree/bindings/media/si470x.txt

-* Silicon Labs FM Radio receiver
-
-The Silicon Labs Si470x is family of FM radio receivers with receive power scan
-supporting 76-108 MHz, programmable through an I2C interface.
-Some of them includes an RDS encoder.
-
-Required Properties:
-- compatible: Should contain "silabs,si470x"
-- reg: the I2C address of the device
-
-Optional Properties:
-- interrupts : The interrupt number
-- reset-gpios: GPIO specifier for the chips reset line
-
-Example:
-
-&i2c2 {
-        si470x@63 {
-                compatible = "silabs,si470x";
-                reg = <0x63>;
-
-                interrupt-parent = <&gpj2>;
-                interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
-                reset-gpios = <&gpj2 5 GPIO_ACTIVE_HIGH>;
-        };
-};

Documentation/devicetree/bindings/media/silabs,si470x.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/silabs,si470x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs Si470x FM Radio Receiver
+
+maintainers:
+  - Hans Verkuil <hverkuil@xs4all.nl>
+  - Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
+
+properties:
+  compatible:
+    const: silabs,si470x
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        fmradio@10 {
+            compatible = "silabs,si470x";
+            reg = <0x10>;
+            interrupt-parent = <&gpj2>;
+            interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+            reset-gpios = <&gpj2 5 GPIO_ACTIVE_HIGH>;
+        };
+    };

MAINTAINERS

@@ -18999,6 +18999,7 @@ L:	linux-media@vger.kernel.org
 S:	Odd Fixes
 W:	https://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
+F:	Documentation/devicetree/bindings/media/silabs,si470x.yaml
 F:	drivers/media/radio/si470x/radio-si470x-i2c.c
 
 SI470X FM RADIO RECEIVER USB DRIVER