Commit f1bd6661 authored by Conor Dooley's avatar Conor Dooley Committed by Wolfram Sang
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dt-bindings: i2c: add bindings for microchip mpfs i2c 



Add device tree bindings for the i2c controller on
the Microchip PolarFire SoC.

Signed-off-by: default avatarDaire McNamara <daire.mcnamara@microchip.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarConor Dooley <conor.dooley@microchip.com>
Acked-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent d0aee048

Documentation/devicetree/bindings/i2c/microchip,corei2c.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/microchip,corei2c.yaml#

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



title: Microchip MPFS I2C Controller Device Tree Bindings



maintainers:

  - Daire McNamara <daire.mcnamara@microchip.com>



allOf:

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



properties:

  compatible:

    oneOf:

      - items:

        - const: microchip,mpfs-i2c # Microchip PolarFire SoC compatible SoCs

        - const: microchip,corei2c-rtl-v7 # Microchip Fabric based i2c IP core

      - const: microchip,corei2c-rtl-v7 # Microchip Fabric based i2c IP core



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 1



  clock-frequency:

    description: |

      Desired I2C bus clock frequency in Hz. As only Standard and Fast

      modes are supported, possible values are 100000 and 400000.

    enum: [100000, 400000]



required:

  - compatible

  - reg

  - interrupts

  - clocks



unevaluatedProperties: false



examples:

  - |

    i2c@2010a000 {

      compatible = "microchip,mpfs-i2c", "microchip,corei2c-rtl-v7";

      reg = <0x2010a000 0x1000>;

      clocks = <&clkcfg 15>;

      interrupt-parent = <&plic>;

      interrupts = <58>;

      clock-frequency = <100000>;

    };

...