Commit 1a73912f authored by Eddie James's avatar Eddie James Committed by Rob Herring (Arm)
Browse files

dt-bindings: i2c: i2c-fsi: Convert to json-schema 



Convert to json-schema for the FSI-attached I2C controller.

Signed-off-by: default avatarEddie James <eajames@linux.ibm.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarNinad Palsule <ninad@linux.ibm.com>
Link: https://lore.kernel.org/r/20240522192524.3286237-12-eajames@linux.ibm.com


Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
parent 51a3f7c5

Documentation/devicetree/bindings/i2c/i2c-fsi.txt

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Device-tree bindings for FSI-attached I2C master and busses

-----------------------------------------------------------



Required properties:

 - compatible = "ibm,i2c-fsi";

 - reg = < address size >;		: The FSI CFAM address and address

					  space size.

 - #address-cells = <1>;		: Number of address cells in child

					  nodes.

 - #size-cells = <0>;			: Number of size cells in child nodes.

 - child nodes				: Nodes to describe busses off the I2C

					  master.



Child node required properties:

 - reg = < port number >		: The port number on the I2C master.



Child node optional properties:

 - child nodes				: Nodes to describe devices on the I2C

					  bus.



Examples:



    i2c@1800 {

        compatible = "ibm,i2c-fsi";

        reg = < 0x1800 0x400 >;

        #address-cells = <1>;

        #size-cells = <0>;



        i2c-bus@0 {

            reg = <0>;

        };



        i2c-bus@1 {

            reg = <1>;



            eeprom@50 {

                compatible = "vendor,dev-name";

            };

        };

    };

Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/i2c/ibm,i2c-fsi.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: IBM FSI-attached I2C controller



maintainers:

  - Eddie James <eajames@linux.ibm.com>



description:

  This I2C controller is an FSI CFAM engine, providing access to a number of

  I2C busses. Therefore this node will always be a child of an FSI CFAM node.



properties:

  compatible:

    enum:

      - ibm,i2c-fsi



  reg:

    items:

      - description: FSI slave address



  "#address-cells":

    const: 1



  "#size-cells":

    const: 0



patternProperties:

  "^i2c-bus@[0-9a-f]+$":

    type: object

    properties:

      reg:

        maxItems: 1



    required:

      - reg



    allOf:

      - $ref: /schemas/i2c/i2c-controller.yaml#



    unevaluatedProperties: false



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    i2c@1800 {

        compatible = "ibm,i2c-fsi";

        reg = <0x1800 0x400>;

        #address-cells = <1>;

        #size-cells = <0>;



        i2c-bus@0 {

            reg = <0>;

            #address-cells = <1>;

            #size-cells = <0>;

        };



        i2c-bus@1 {

            reg = <1>;

            #address-cells = <1>;

            #size-cells = <0>;



            eeprom@50 {

                compatible = "atmel,24c64";

                reg = <0x50>;

            };

        };

    };

MAINTAINERS

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@@ -8976,7 +8976,7 @@ M: Eddie James <eajames@linux.ibm.com> 
L:	linux-i2c@vger.kernel.org

L:	openbmc@lists.ozlabs.org (moderated for non-subscribers)

S:	Maintained

F:	Documentation/devicetree/bindings/i2c/i2c-fsi.txt

F:	Documentation/devicetree/bindings/i2c/ibm,i2c-fsi.yaml

F:	drivers/i2c/busses/i2c-fsi.c









FSI-ATTACHED SPI DRIVER