media: dt-bindings: media: ov772x: Convert to json-schema

Convert the ov772x binding document to json-schema and update
the MAINTAINERS file accordingly.
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
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/i2c/ov772x.txt

-* Omnivision OV7720/OV7725 CMOS sensor
-
-The Omnivision OV7720/OV7725 sensor supports multiple resolutions output,
-such as VGA, QVGA, and any size scaling down from CIF to 40x30. It also can
-support the YUV422, RGB565/555/444, GRB422 or raw RGB output formats.
-
-Required Properties:
-- compatible: shall be one of
-	"ovti,ov7720"
-	"ovti,ov7725"
-- clocks: reference to the xclk input clock.
-
-Optional Properties:
-- reset-gpios: reference to the GPIO connected to the RSTB pin which is
-  active low, if any.
-- powerdown-gpios: reference to the GPIO connected to the PWDN pin which is
-  active high, if any.
-
-The device node shall contain one 'port' child node with one child 'endpoint'
-subnode for its digital output video port, in accordance with the video
-interface bindings defined in Documentation/devicetree/bindings/media/
-video-interfaces.txt.
-
-Example:
-
-&i2c0 {
-	ov772x: camera@21 {
-		compatible = "ovti,ov7725";
-		reg = <0x21>;
-		reset-gpios = <&axi_gpio_0 0 GPIO_ACTIVE_LOW>;
-		powerdown-gpios = <&axi_gpio_0 1 GPIO_ACTIVE_LOW>;
-		clocks = <&xclk>;
-
-		port {
-			ov772x_0: endpoint {
-				remote-endpoint = <&vcap1_in0>;
-			};
-		};
-	};
-};

Documentation/devicetree/bindings/media/i2c/ovti,ov772x.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,ov772x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Omnivision OV7720/OV7725 CMOS sensor
+
+maintainers:
+  - Jacopo Mondi <jacopo@jmondi.org>
+
+description: |
+  The Omnivision OV7720/OV7725 sensor supports multiple resolutions output,
+  such as VGA, QVGA, and any size scaling down from CIF to 40x30. It also can
+  support the YUV422, RGB565/555/444, GRB422 or raw RGB output formats.
+
+properties:
+  compatible:
+    enum:
+      - ovti,ov7720
+      - ovti,ov7725
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  reset-gpios:
+    description: |
+      Reference to the GPIO connected to the RSTB pin which is active low.
+    maxItems: 1
+
+  powerdown-gpios:
+    description: |
+      Reference to the GPIO connected to the PWDN pin which is active high.
+    maxItems: 1
+
+  port:
+    type: object
+    description: |
+      Video output port. See ../video-interfaces.txt.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        ov772x: camera@21 {
+            compatible = "ovti,ov7725";
+            reg = <0x21>;
+            reset-gpios = <&axi_gpio_0 0 GPIO_ACTIVE_LOW>;
+            powerdown-gpios = <&axi_gpio_0 1 GPIO_ACTIVE_LOW>;
+            clocks = <&xclk>;
+
+            port {
+                ov772x_0: endpoint {
+                    remote-endpoint = <&vcap1_in0>;
+                };
+            };
+        };
+    };
+
+...

MAINTAINERS

@@ -12958,7 +12958,7 @@ M:	Jacopo Mondi <jacopo@jmondi.org>
 L:	linux-media@vger.kernel.org
 S:	Odd fixes
 T:	git git://linuxtv.org/media_tree.git
-F:	Documentation/devicetree/bindings/media/i2c/ov772x.txt
+F:	Documentation/devicetree/bindings/media/i2c/ovti,ov772x.yaml
 F:	drivers/media/i2c/ov772x.c
 F:	include/media/i2c/ov772x.h