[RFC,05/11] fixup! dt-bindings: media: i2c: Add bindings for IMI RDACM20
diff mbox series

Message ID 20191216171620.372683-6-jacopo+renesas@jmondi.org
State New
Delegated to: Kieran Bingham
Headers show
Series
  • GMSL: Initial RDACM21 support
Related show

Commit Message

Jacopo Mondi Dec. 16, 2019, 5:16 p.m. UTC
---
 .../bindings/media/i2c/imi,rdacm20.txt        |  66 ----------
 .../bindings/media/i2c/imi,rdacm20.yaml       | 113 ++++++++++++++++++
 2 files changed, 113 insertions(+), 66 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
 create mode 100644 Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml

Comments

Laurent Pinchart Dec. 16, 2019, 10:42 p.m. UTC | #1
Hi Jacopo,

Thank you for the patch.

On Mon, Dec 16, 2019 at 06:16:14PM +0100, Jacopo Mondi wrote:
> ---
>  .../bindings/media/i2c/imi,rdacm20.txt        |  66 ----------
>  .../bindings/media/i2c/imi,rdacm20.yaml       | 113 ++++++++++++++++++
>  2 files changed, 113 insertions(+), 66 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
> deleted file mode 100644
> index 4731aafed63f..000000000000
> --- a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
> +++ /dev/null
> @@ -1,66 +0,0 @@
> -IMI D&D RDACM20 Automotive Camera Platform
> -------------------------------------------
> -
> -The IMI D&D RDACM20 is a GMSL-compatible camera designed for automotive
> -applications. It encloses a Maxim Integrated MAX9271 GMSL serializer, an
> -Omnivision OV10635 camera sensor and an embedded MCU, and connects to a remote
> -GMSL endpoint through a coaxial cable.
> -
> -                                                     IMI RDACM20
> - ---------------                               --------------------------------
> -|      GMSL     |   <---  Video Stream        |       <- Video--------\        |
> -|               |< ====== GMSL Link ======== >|MAX9271<- I2C bus-> <-->OV10635 |
> -| de-serializer |   <---  I2C messages --->   |                   \<-->MCU     |
> - ---------------                               --------------------------------
> -
> -The RDACM20 transmits video data generated by the embedded camera sensor on the
> -GMSL serial channel to a remote GMSL de-serializer, as well as it receives and
> -transmits I2C messages encapsulated in the GMSL bidirectional control channel.
> -
> -All I2C traffic received on the GMSL link not directed to the serializer is
> -propagated on the local I2C bus to the embedded camera sensor and MCU. All
> -I2C traffic generated on the local I2C bus not directed to the serializer is
> -propagated to the remote de-serializer encapsulated in the GMSL control channel.
> -
> -The RDACM20 DT node should be a direct child of the GMSL Deserializer's I2C bus
> -corresponding to the GMSL link that the camera is attached to.
> -
> -Required Properties:
> -
> -- compatible: Shall be "imi,rdacm20".
> -- reg: I2C device addresses, the first to be assigned to the serializer
> -  the second to be assigned to the camera sensor. An optional third address can
> -  be provided to specify the MCU address if present.
> -
> -Connection to the remote GMSL endpoint are modelled using the OF graph bindings
> -in accordance with the video interface bindings defined in
> -Documentation/devicetree/bindings/media/video-interfaces.txt.
> -
> -The device node contains a single "port" child node with a single "endpoint"
> -sub-device.
> -
> -Required endpoint properties:
> -
> -- remote-endpoint: phandle to the remote GMSL endpoint sub-node in the remote
> -  node port.
> -
> -Example:
> --------
> -
> -	i2c@0 {
> -		#address-cells = <1>;
> -		#size-cells = <0>;
> -		reg = <0>;
> -
> -		camera@51 {
> -			compatible = "imi,rdacm20";
> -			reg = <0x31 0x41 0x51>;
> -
> -			port {
> -				rdacm20_out0: endpoint {
> -					remote-endpoint = <&max9286_in0>;
> -				};
> -			};
> -
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
> new file mode 100644
> index 000000000000..76740e285f44
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
> @@ -0,0 +1,113 @@
> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
> +# Copyright (C) 2019 Renesas Electronics Corp.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/imi,rdacm20.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title:  IMI D&D RDACM20 Automotive Camera Platform
> +
> +maintainers:
> +  - Jacopo Mondi <jacopo+renesas@jmondi.org>
> +  - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> +  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> +  - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> +
> +description: -|
> +  The IMI D&D RDACM20 is a GMSL-compatible camera designed for automotive
> +  applications. It encloses a Maxim Integrated MAX9271 GMSL serializer, an
> +  Omnivision OV10635 camera sensor and an embedded MCU, and connects to a remote
> +  GMSL endpoint through a coaxial cable.
> +
> +                                                   IMI RDACM20
> +  +---------------+                        +--------------------------------+
> +  |      GMSL     |   <- Video Stream      |       <- Video--------\        |
> +  |               |< === GMSL Link ====== >|MAX9271<- I2C bus-> <-->OV10635 |
> +  | de-serializer |   <- I2C messages ->   |                   \<-->MCU     |
> +  +---------------+                        +--------------------------------+
> +
> +  The RDACM20 transmits video data generated by the embedded camera sensor on
> +  the GMSL serial channel to a remote GMSL de-serializer, as well as it receives
> +  and transmits I2C messages encapsulated in the GMSL bidirectional control
> +  channel.
> +
> +  All I2C traffic received on the GMSL link not directed to the serializer is
> +  propagated on the local I2C bus to the embedded camera sensor and MCU. All I2C
> +  traffic generated on the local I2C bus not directed to the serializer is
> +  propagated to the remote de-serializer encapsulated in the GMSL control
> +  channel.
> +
> +  The RDACM20 DT node should be a direct child of the GMSL Deserializer's I2C
> +  bus corresponding to the GMSL link that the camera is attached to.
> +
> +properties:
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0

Are those two properties needed ?

> +
> +  compatible:
> +    const: imi,rdacm20
> +
> +  reg:
> +    description: -|
> +      I2C device addresses, the first to be assigned to the serializer the
> +      second to be assigned to the camera sensor. An optional third address can
> +      be provided to specify the MCU address if present.
> +    minItems: 2
> +    maxItems: 3
> +
> +  port:
> +    type: object
> +    additionalProperties: false
> +    description: -|
> +      Connection to the remote GMSL endpoint are modelled using the OF graph
> +      bindings in accordance with the video interface bindings defined in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt.
> +
> +      The device node contains a single "port" child node with a single
> +      "endpoint" sub-device.
> +
> +    properties:
> +      endpoint:
> +        type: object
> +        additionalProperties: false
> +
> +        properties:
> +          remote-endpoint:
> +            description: -|
> +              phandle to the remote GMSL endpoint sub-node in the remote node
> +              port.
> +            maxItems: 1
> +
> +        required:
> +          - remote-endpoint
> +
> +    required:
> +      - endpoint
> +
> +required:
> +  - compatible
> +  - reg
> +  - port
> +
> +examples:
> +  - |
> +    i2c@e66d8000 {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      reg = <0 0xe66d8000 0 0x40>;
> +
> +      camera@31 {
> +        compatible = "imi,rdacm20";
> +        reg = <0x31>, <0x41>, <0x51>;
> +
> +        port {
> +          rdacm20_out0: endpoint {
> +            remote-endpoint = <&max9286_in0>;
> +          };
> +        };
> +      };
> +    };
Kieran Bingham Feb. 14, 2020, 9:07 a.m. UTC | #2
Hi Jacopo,


On 16/12/2019 22:42, Laurent Pinchart wrote:
> Hi Jacopo,
> 
> Thank you for the patch.
> 
> On Mon, Dec 16, 2019 at 06:16:14PM +0100, Jacopo Mondi wrote:
>> ---
>>  .../bindings/media/i2c/imi,rdacm20.txt        |  66 ----------
>>  .../bindings/media/i2c/imi,rdacm20.yaml       | 113 ++++++++++++++++++
>>  2 files changed, 113 insertions(+), 66 deletions(-)
>>  delete mode 100644 Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
>>  create mode 100644 Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
>> deleted file mode 100644
>> index 4731aafed63f..000000000000
>> --- a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
>> +++ /dev/null
>> @@ -1,66 +0,0 @@
>> -IMI D&D RDACM20 Automotive Camera Platform
>> -------------------------------------------
>> -
>> -The IMI D&D RDACM20 is a GMSL-compatible camera designed for automotive
>> -applications. It encloses a Maxim Integrated MAX9271 GMSL serializer, an
>> -Omnivision OV10635 camera sensor and an embedded MCU, and connects to a remote
>> -GMSL endpoint through a coaxial cable.
>> -
>> -                                                     IMI RDACM20
>> - ---------------                               --------------------------------
>> -|      GMSL     |   <---  Video Stream        |       <- Video--------\        |
>> -|               |< ====== GMSL Link ======== >|MAX9271<- I2C bus-> <-->OV10635 |
>> -| de-serializer |   <---  I2C messages --->   |                   \<-->MCU     |
>> - ---------------                               --------------------------------
>> -
>> -The RDACM20 transmits video data generated by the embedded camera sensor on the
>> -GMSL serial channel to a remote GMSL de-serializer, as well as it receives and
>> -transmits I2C messages encapsulated in the GMSL bidirectional control channel.
>> -
>> -All I2C traffic received on the GMSL link not directed to the serializer is
>> -propagated on the local I2C bus to the embedded camera sensor and MCU. All
>> -I2C traffic generated on the local I2C bus not directed to the serializer is
>> -propagated to the remote de-serializer encapsulated in the GMSL control channel.
>> -
>> -The RDACM20 DT node should be a direct child of the GMSL Deserializer's I2C bus
>> -corresponding to the GMSL link that the camera is attached to.
>> -
>> -Required Properties:
>> -
>> -- compatible: Shall be "imi,rdacm20".
>> -- reg: I2C device addresses, the first to be assigned to the serializer
>> -  the second to be assigned to the camera sensor. An optional third address can
>> -  be provided to specify the MCU address if present.
>> -
>> -Connection to the remote GMSL endpoint are modelled using the OF graph bindings
>> -in accordance with the video interface bindings defined in
>> -Documentation/devicetree/bindings/media/video-interfaces.txt.
>> -
>> -The device node contains a single "port" child node with a single "endpoint"
>> -sub-device.
>> -
>> -Required endpoint properties:
>> -
>> -- remote-endpoint: phandle to the remote GMSL endpoint sub-node in the remote
>> -  node port.
>> -
>> -Example:
>> --------
>> -
>> -	i2c@0 {
>> -		#address-cells = <1>;
>> -		#size-cells = <0>;
>> -		reg = <0>;
>> -
>> -		camera@51 {
>> -			compatible = "imi,rdacm20";
>> -			reg = <0x31 0x41 0x51>;
>> -
>> -			port {
>> -				rdacm20_out0: endpoint {
>> -					remote-endpoint = <&max9286_in0>;
>> -				};
>> -			};
>> -
>> -		};
>> -	};
>> diff --git a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
>> new file mode 100644
>> index 000000000000..76740e285f44
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
>> @@ -0,0 +1,113 @@
>> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
>> +# Copyright (C) 2019 Renesas Electronics Corp.
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/media/i2c/imi,rdacm20.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title:  IMI D&D RDACM20 Automotive Camera Platform
>> +
>> +maintainers:
>> +  - Jacopo Mondi <jacopo+renesas@jmondi.org>
>> +  - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
>> +  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
>> +  - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
>> +
>> +description: -|
>> +  The IMI D&D RDACM20 is a GMSL-compatible camera designed for automotive
>> +  applications. It encloses a Maxim Integrated MAX9271 GMSL serializer, an
>> +  Omnivision OV10635 camera sensor and an embedded MCU, and connects to a remote
>> +  GMSL endpoint through a coaxial cable.
>> +
>> +                                                   IMI RDACM20
>> +  +---------------+                        +--------------------------------+
>> +  |      GMSL     |   <- Video Stream      |       <- Video--------\        |
>> +  |               |< === GMSL Link ====== >|MAX9271<- I2C bus-> <-->OV10635 |
>> +  | de-serializer |   <- I2C messages ->   |                   \<-->MCU     |
>> +  +---------------+                        +--------------------------------+
>> +
>> +  The RDACM20 transmits video data generated by the embedded camera sensor on
>> +  the GMSL serial channel to a remote GMSL de-serializer, as well as it receives
>> +  and transmits I2C messages encapsulated in the GMSL bidirectional control
>> +  channel.
>> +
>> +  All I2C traffic received on the GMSL link not directed to the serializer is
>> +  propagated on the local I2C bus to the embedded camera sensor and MCU. All I2C
>> +  traffic generated on the local I2C bus not directed to the serializer is
>> +  propagated to the remote de-serializer encapsulated in the GMSL control
>> +  channel.
>> +
>> +  The RDACM20 DT node should be a direct child of the GMSL Deserializer's I2C
>> +  bus corresponding to the GMSL link that the camera is attached to.
>> +
>> +properties:
>> +  '#address-cells':
>> +    const: 1
>> +
>> +  '#size-cells':
>> +    const: 0
> 
> Are those two properties needed ?
> 

Hi Jacopo,

This question is left unanswered, and the properties are still in the
code base...

Can/should we drop these two properties?


I can see that the i2c-node will specify the properties, but I don't
think the rdacm20 node will..

i.e.:

>> +    i2c@e66d8000 {
>> +      #address-cells = <1>;
>> +      #size-cells = <0>;

	They are utilised here (in the i2c node)...

>> +
>> +      reg = <0 0xe66d8000 0 0x40>;
>> +
>> +      camera@31 {
>> +        compatible = "imi,rdacm20";
>> +        reg = <0x31>, <0x41>, <0x51>;

but not here in the camera node....

>> +
>> +        port {
>> +          rdacm20_out0: endpoint {
>> +            remote-endpoint = <&max9286_in0>;
>> +          };
>> +        };
>> +      };
>> +    };


--
Kieran


>> +
>> +  compatible:
>> +    const: imi,rdacm20
>> +
>> +  reg:
>> +    description: -|
>> +      I2C device addresses, the first to be assigned to the serializer the
>> +      second to be assigned to the camera sensor. An optional third address can
>> +      be provided to specify the MCU address if present.
>> +    minItems: 2
>> +    maxItems: 3
>> +
>> +  port:
>> +    type: object
>> +    additionalProperties: false
>> +    description: -|
>> +      Connection to the remote GMSL endpoint are modelled using the OF graph
>> +      bindings in accordance with the video interface bindings defined in
>> +      Documentation/devicetree/bindings/media/video-interfaces.txt.
>> +
>> +      The device node contains a single "port" child node with a single
>> +      "endpoint" sub-device.
>> +
>> +    properties:
>> +      endpoint:
>> +        type: object
>> +        additionalProperties: false
>> +
>> +        properties:
>> +          remote-endpoint:
>> +            description: -|
>> +              phandle to the remote GMSL endpoint sub-node in the remote node
>> +              port.
>> +            maxItems: 1
>> +
>> +        required:
>> +          - remote-endpoint
>> +
>> +    required:
>> +      - endpoint
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - port
>> +
>> +examples:
>> +  - |
>> +    i2c@e66d8000 {
>> +      #address-cells = <1>;
>> +      #size-cells = <0>;
>> +
>> +      reg = <0 0xe66d8000 0 0x40>;
>> +
>> +      camera@31 {
>> +        compatible = "imi,rdacm20";
>> +        reg = <0x31>, <0x41>, <0x51>;
>> +
>> +        port {
>> +          rdacm20_out0: endpoint {
>> +            remote-endpoint = <&max9286_in0>;
>> +          };
>> +        };
>> +      };
>> +    };
>

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
deleted file mode 100644
index 4731aafed63f..000000000000
--- a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.txt
+++ /dev/null
@@ -1,66 +0,0 @@ 
-IMI D&D RDACM20 Automotive Camera Platform
-------------------------------------------
-
-The IMI D&D RDACM20 is a GMSL-compatible camera designed for automotive
-applications. It encloses a Maxim Integrated MAX9271 GMSL serializer, an
-Omnivision OV10635 camera sensor and an embedded MCU, and connects to a remote
-GMSL endpoint through a coaxial cable.
-
-                                                     IMI RDACM20
- ---------------                               --------------------------------
-|      GMSL     |   <---  Video Stream        |       <- Video--------\        |
-|               |< ====== GMSL Link ======== >|MAX9271<- I2C bus-> <-->OV10635 |
-| de-serializer |   <---  I2C messages --->   |                   \<-->MCU     |
- ---------------                               --------------------------------
-
-The RDACM20 transmits video data generated by the embedded camera sensor on the
-GMSL serial channel to a remote GMSL de-serializer, as well as it receives and
-transmits I2C messages encapsulated in the GMSL bidirectional control channel.
-
-All I2C traffic received on the GMSL link not directed to the serializer is
-propagated on the local I2C bus to the embedded camera sensor and MCU. All
-I2C traffic generated on the local I2C bus not directed to the serializer is
-propagated to the remote de-serializer encapsulated in the GMSL control channel.
-
-The RDACM20 DT node should be a direct child of the GMSL Deserializer's I2C bus
-corresponding to the GMSL link that the camera is attached to.
-
-Required Properties:
-
-- compatible: Shall be "imi,rdacm20".
-- reg: I2C device addresses, the first to be assigned to the serializer
-  the second to be assigned to the camera sensor. An optional third address can
-  be provided to specify the MCU address if present.
-
-Connection to the remote GMSL endpoint are modelled using the OF graph bindings
-in accordance with the video interface bindings defined in
-Documentation/devicetree/bindings/media/video-interfaces.txt.
-
-The device node contains a single "port" child node with a single "endpoint"
-sub-device.
-
-Required endpoint properties:
-
-- remote-endpoint: phandle to the remote GMSL endpoint sub-node in the remote
-  node port.
-
-Example:
--------
-
-	i2c@0 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0>;
-
-		camera@51 {
-			compatible = "imi,rdacm20";
-			reg = <0x31 0x41 0x51>;
-
-			port {
-				rdacm20_out0: endpoint {
-					remote-endpoint = <&max9286_in0>;
-				};
-			};
-
-		};
-	};
diff --git a/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
new file mode 100644
index 000000000000..76740e285f44
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/imi,rdacm20.yaml
@@ -0,0 +1,113 @@ 
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+# Copyright (C) 2019 Renesas Electronics Corp.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/imi,rdacm20.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:  IMI D&D RDACM20 Automotive Camera Platform
+
+maintainers:
+  - Jacopo Mondi <jacopo+renesas@jmondi.org>
+  - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
+  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+  - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
+
+description: -|
+  The IMI D&D RDACM20 is a GMSL-compatible camera designed for automotive
+  applications. It encloses a Maxim Integrated MAX9271 GMSL serializer, an
+  Omnivision OV10635 camera sensor and an embedded MCU, and connects to a remote
+  GMSL endpoint through a coaxial cable.
+
+                                                   IMI RDACM20
+  +---------------+                        +--------------------------------+
+  |      GMSL     |   <- Video Stream      |       <- Video--------\        |
+  |               |< === GMSL Link ====== >|MAX9271<- I2C bus-> <-->OV10635 |
+  | de-serializer |   <- I2C messages ->   |                   \<-->MCU     |
+  +---------------+                        +--------------------------------+
+
+  The RDACM20 transmits video data generated by the embedded camera sensor on
+  the GMSL serial channel to a remote GMSL de-serializer, as well as it receives
+  and transmits I2C messages encapsulated in the GMSL bidirectional control
+  channel.
+
+  All I2C traffic received on the GMSL link not directed to the serializer is
+  propagated on the local I2C bus to the embedded camera sensor and MCU. All I2C
+  traffic generated on the local I2C bus not directed to the serializer is
+  propagated to the remote de-serializer encapsulated in the GMSL control
+  channel.
+
+  The RDACM20 DT node should be a direct child of the GMSL Deserializer's I2C
+  bus corresponding to the GMSL link that the camera is attached to.
+
+properties:
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  compatible:
+    const: imi,rdacm20
+
+  reg:
+    description: -|
+      I2C device addresses, the first to be assigned to the serializer the
+      second to be assigned to the camera sensor. An optional third address can
+      be provided to specify the MCU address if present.
+    minItems: 2
+    maxItems: 3
+
+  port:
+    type: object
+    additionalProperties: false
+    description: -|
+      Connection to the remote GMSL endpoint are modelled using the OF graph
+      bindings in accordance with the video interface bindings defined in
+      Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+      The device node contains a single "port" child node with a single
+      "endpoint" sub-device.
+
+    properties:
+      endpoint:
+        type: object
+        additionalProperties: false
+
+        properties:
+          remote-endpoint:
+            description: -|
+              phandle to the remote GMSL endpoint sub-node in the remote node
+              port.
+            maxItems: 1
+
+        required:
+          - remote-endpoint
+
+    required:
+      - endpoint
+
+required:
+  - compatible
+  - reg
+  - port
+
+examples:
+  - |
+    i2c@e66d8000 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      reg = <0 0xe66d8000 0 0x40>;
+
+      camera@31 {
+        compatible = "imi,rdacm20";
+        reg = <0x31>, <0x41>, <0x51>;
+
+        port {
+          rdacm20_out0: endpoint {
+            remote-endpoint = <&max9286_in0>;
+          };
+        };
+      };
+    };