media: dt-bindings: media: atmel-isc: convert to yaml

Convert the Atmel ISC to yaml binding format.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/devicetree/bindings/media/atmel,isc.yaml

+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2016-2021 Microchip Technology, Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/atmel,isc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel Image Sensor Controller (ISC)
+
+maintainers:
+  - Eugen Hristev <eugen.hristev@microchip.com>
+
+description: |
+  The Image Sensor Controller (ISC) device provides the video input capabilities for the
+  Atmel/Microchip AT91 SAMA family of devices.
+
+  The ISC has a single parallel input that supports RAW Bayer, RGB or YUV video,
+  with both external synchronization and BT.656 synchronization for the latter.
+
+properties:
+  compatible:
+    const: atmel,sama5d2-isc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 3
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: hclock
+      - const: iscck
+      - const: gck
+
+  '#clock-cells':
+    const: 0
+
+  clock-output-names:
+    const: isc-mck
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description:
+      Input port node, single endpoint describing the input pad.
+
+    properties:
+      endpoint:
+        $ref: video-interfaces.yaml#
+
+        properties:
+          remote-endpoint: true
+
+          bus-width:
+            enum: [8, 9, 10, 11, 12]
+            default: 12
+
+          hsync-active:
+            enum: [0, 1]
+            default: 1
+
+          vsync-active:
+            enum: [0, 1]
+            default: 1
+
+          pclk-sample:
+            enum: [0, 1]
+            default: 1
+
+        required:
+          - remote-endpoint
+
+        additionalProperties: false
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+  - clock-output-names
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    isc: isc@f0008000 {
+        compatible = "atmel,sama5d2-isc";
+        reg = <0xf0008000 0x4000>;
+        interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
+        clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
+        clock-names = "hclock", "iscck", "gck";
+        #clock-cells = <0>;
+        clock-output-names = "isc-mck";
+
+        port {
+                isc_0: endpoint {
+                       remote-endpoint = <&ov7740_0>;
+                       hsync-active = <1>;
+                       vsync-active = <0>;
+                       pclk-sample = <1>;
+                       bus-width = <8>;
+                };
+        };
+    };

Documentation/devicetree/bindings/media/atmel-isc.txt

-Atmel Image Sensor Controller (ISC)
-----------------------------------------------
-
-Required properties for ISC:
-- compatible
-	Must be "atmel,sama5d2-isc".
-- reg
-	Physical base address and length of the registers set for the device.
-- interrupts
-	Should contain IRQ line for the ISC.
-- clocks
-	List of clock specifiers, corresponding to entries in
-	the clock-names property;
-	Please refer to clock-bindings.txt.
-- clock-names
-	Required elements: "hclock", "iscck", "gck".
-- #clock-cells
-	Should be 0.
-- clock-output-names
-	Should be "isc-mck".
-- pinctrl-names, pinctrl-0
-	Please refer to pinctrl-bindings.txt.
-
-ISC supports a single port node with parallel bus. It should contain one
-'port' child node with child 'endpoint' node. Please refer to the bindings
-defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
-
-Example:
-isc: isc@f0008000 {
-	compatible = "atmel,sama5d2-isc";
-	reg = <0xf0008000 0x4000>;
-	interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
-	clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
-	clock-names = "hclock", "iscck", "gck";
-	#clock-cells = <0>;
-	clock-output-names = "isc-mck";
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>;
-
-	port {
-		isc_0: endpoint {
-			remote-endpoint = <&ov7740_0>;
-			hsync-active = <1>;
-			vsync-active = <0>;
-			pclk-sample = <1>;
-		};
-	};
-};
-
-i2c1: i2c@fc028000 {
-	ov7740: camera@21 {
-		compatible = "ovti,ov7740";
-		reg = <0x21>;
-		clocks = <&isc>;
-		clock-names = "xvclk";
-		assigned-clocks = <&isc>;
-		assigned-clock-rates = <24000000>;
-
-		port {
-			ov7740_0: endpoint {
-				remote-endpoint = <&isc_0>;
-			};
-		};
-	};
-};