dt-bindings: display: Convert connectors to DT schema

Convert the analog TV, DVI, HDMI, and VGA connector bindings to DT schema
format.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200630200216.1172566-1-robh@kernel.org

Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt

-Analog TV Connector
-===================
-
-Required properties:
-- compatible: "composite-video-connector" or "svideo-connector"
-
-Optional properties:
-- label: a symbolic name for the connector
-- sdtv-standards: limit the supported TV standards on a connector to the given
-                  ones. If not specified all TV standards are allowed.
-                  Possible TV standards are defined in
-                  include/dt-bindings/display/sdtv-standards.h.
-
-Required nodes:
-- Video port for TV input
-
-Example
--------
-#include <dt-bindings/display/sdtv-standards.h>
-
-tv: connector {
-	compatible = "composite-video-connector";
-	label = "tv";
-	sdtv-standards = <(SDTV_STD_PAL | SDTV_STD_NTSC)>;
-
-	port {
-		tv_connector_in: endpoint {
-			remote-endpoint = <&venc_out>;
-		};
-	};
-};

Documentation/devicetree/bindings/display/connector/analog-tv-connector.yaml

+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/connector/analog-tv-connector.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog TV Connector
+
+maintainers:
+  - Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
+
+properties:
+  compatible:
+    enum:
+      - composite-video-connector
+      - svideo-connector
+
+  label: true
+
+  sdtv-standards:
+    description:
+      Limit the supported TV standards on a connector to the given ones. If
+      not specified all TV standards are allowed. Possible TV standards are
+      defined in include/dt-bindings/display/sdtv-standards.h.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  port:
+    description: Connection to controller providing analog TV signals
+
+required:
+  - compatible
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/display/sdtv-standards.h>
+
+    connector {
+        compatible = "composite-video-connector";
+        label = "tv";
+        sdtv-standards = <(SDTV_STD_PAL | SDTV_STD_NTSC)>;
+
+        port {
+            tv_connector_in: endpoint {
+                remote-endpoint = <&venc_out>;
+            };
+        };
+    };
+
+...

Documentation/devicetree/bindings/display/connector/dvi-connector.txt

-DVI Connector
-==============
-
-Required properties:
-- compatible: "dvi-connector"
-
-Optional properties:
-- label: a symbolic name for the connector
-- ddc-i2c-bus: phandle to the i2c bus that is connected to DVI DDC
-- analog: the connector has DVI analog pins
-- digital: the connector has DVI digital pins
-- dual-link: the connector has pins for DVI dual-link
-- hpd-gpios: HPD GPIO number
-
-Required nodes:
-- Video port for DVI input
-
-Note: One (or both) of 'analog' or 'digital' must be set.
-
-Example
--------
-
-dvi0: connector@0 {
-	compatible = "dvi-connector";
-	label = "dvi";
-
-	digital;
-
-	ddc-i2c-bus = <&i2c3>;
-
-	port {
-		dvi_connector_in: endpoint {
-			remote-endpoint = <&tfp410_out>;
-		};
-	};
-};

Documentation/devicetree/bindings/display/connector/dvi-connector.yaml

+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/connector/dvi-connector.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: DVI Connector
+
+maintainers:
+  - Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
+
+properties:
+  compatible:
+    const: dvi-connector
+
+  label: true
+
+  hpd-gpios:
+    description: A GPIO line connected to HPD
+    maxItems: 1
+
+  ddc-i2c-bus:
+    description: phandle link to the I2C controller used for DDC EDID probing
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  analog:
+    type: boolean
+    description: the connector has DVI analog pins
+
+  digital:
+    type: boolean
+    description: the connector has DVI digital pins
+
+  dual-link:
+    type: boolean
+    description: the connector has pins for DVI dual-link
+
+  port:
+    description: Connection to controller providing DVI signals
+
+required:
+  - compatible
+  - port
+
+anyOf:
+  - required:
+      - analog
+  - required:
+      - digital
+
+additionalProperties: false
+
+examples:
+  - |
+    connector {
+        compatible = "dvi-connector";
+        label = "dvi";
+
+        digital;
+
+        ddc-i2c-bus = <&i2c3>;
+
+        port {
+            dvi_connector_in: endpoint {
+                remote-endpoint = <&tfp410_out>;
+            };
+        };
+    };
+
+...

Documentation/devicetree/bindings/display/connector/hdmi-connector.txt

-HDMI Connector
-==============
-
-Required properties:
-- compatible: "hdmi-connector"
-- type: the HDMI connector type: "a", "b", "c", "d" or "e"
-
-Optional properties:
-- label: a symbolic name for the connector
-- hpd-gpios: HPD GPIO number
-- ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing
-- ddc-en-gpios: signal to enable DDC bus
-
-Required nodes:
-- Video port for HDMI input
-
-Example
--------
-
-hdmi0: connector@1 {
-	compatible = "hdmi-connector";
-	label = "hdmi";
-
-	type = "a";
-
-	port {
-		hdmi_connector_in: endpoint {
-			remote-endpoint = <&tpd12s015_out>;
-		};
-	};
-};

Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml

+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/connector/hdmi-connector.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HDMI Connector
+
+maintainers:
+  - Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
+
+properties:
+  compatible:
+    const: hdmi-connector
+
+  type:
+    description: The HDMI connector type
+    enum:
+      - a   # Standard full size
+      - b   # Never deployed?
+      - c   # Mini
+      - d   # Micro
+      - e   # automotive
+
+  label: true
+
+  hpd-gpios:
+    description: A GPIO line connected to HPD
+    maxItems: 1
+
+  ddc-i2c-bus:
+    description: phandle link to the I2C controller used for DDC EDID probing
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  ddc-en-gpios:
+    description: GPIO signal to enable DDC bus
+    maxItems: 1
+
+  port:
+    description: Connection to controller providing HDMI signals
+
+required:
+  - compatible
+  - port
+  - type
+
+additionalProperties: false
+
+examples:
+  - |
+    connector {
+        compatible = "hdmi-connector";
+        label = "hdmi";
+
+        type = "a";
+
+        port {
+            hdmi_connector_in: endpoint {
+                remote-endpoint = <&tpd12s015_out>;
+            };
+        };
+    };
+
+...

Documentation/devicetree/bindings/display/connector/vga-connector.txt

-VGA Connector
-=============
-
-Required properties:
-
-- compatible: "vga-connector"
-
-Optional properties:
-
-- label: a symbolic name for the connector corresponding to a hardware label
-- ddc-i2c-bus: phandle to the I2C bus that is connected to VGA DDC
-
-Required nodes:
-
-The VGA connector internal connections are modeled using the OF graph bindings
-specified in Documentation/devicetree/bindings/graph.txt.
-
-The VGA connector has a single port that must be connected to a video source
-port.
-
-
-Example
--------
-
-vga0: connector@0 {
-	compatible = "vga-connector";
-	label = "vga";
-
-	ddc-i2c-bus = <&i2c3>;
-
-	port {
-		vga_connector_in: endpoint {
-			remote-endpoint = <&adv7123_out>;
-		};
-	};
-};

Documentation/devicetree/bindings/display/connector/vga-connector.yaml

+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/connector/vga-connector.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: VGA Connector
+
+maintainers:
+  - Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
+
+properties:
+  compatible:
+    const: vga-connector
+
+  label: true
+
+  ddc-i2c-bus:
+    description: phandle link to the I2C controller used for DDC EDID probing
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  port:
+    description: Connection to controller providing VGA signals
+
+required:
+  - compatible
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    connector {
+        compatible = "vga-connector";
+        label = "vga";
+
+        ddc-i2c-bus = <&i2c3>;
+
+        port {
+            vga_connector_in: endpoint {
+                remote-endpoint = <&adv7123_out>;
+            };
+        };
+    };
+
+...