Commit 1b9a8e8a authored by Théo Lebrun's avatar Théo Lebrun Committed by Andi Shyti
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dt-bindings: i2c: nomadik: add mobileye,eyeq5-i2c bindings and example 



Add EyeQ5 bindings to the existing Nomadik I2C dt-bindings. Add the
EyeQ5-specific property behind a conditional. Add an example for this
compatible.

Signed-off-by: default avatarThéo Lebrun <theo.lebrun@bootlin.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarAndi Shyti <andi.shyti@kernel.org>
parent 06d0cb6c

Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml

+43 −6
Original line number Diff line number Diff line
@@ -14,9 +14,6 @@ description: The Nomadik I2C host controller began its life in the ST 
maintainers:

  - Linus Walleij <linus.walleij@linaro.org>



allOf:

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



# Need a custom select here or 'arm,primecell' will match on lots of nodes

select:

  properties:
@@ -24,21 +21,23 @@ select: 
      contains:

        enum:

          - st,nomadik-i2c

          - mobileye,eyeq5-i2c

  required:

    - compatible



properties:

  compatible:

    oneOf:

      # The variant found in STn8815

      - items:

          - const: st,nomadik-i2c

          - const: arm,primecell

      # The variant found in DB8500

      - items:

          - const: stericsson,db8500-i2c

          - const: st,nomadik-i2c

          - const: arm,primecell

      - items:

          - const: mobileye,eyeq5-i2c

          - const: arm,primecell



  reg:

    maxItems: 1
@@ -55,7 +54,7 @@ properties: 
      - items:

          - const: mclk

          - const: apb_pclk

      # Clock name in DB8500

      # Clock name in DB8500 or EyeQ5

      - items:

          - const: i2cclk

          - const: apb_pclk
@@ -70,6 +69,16 @@ properties: 
    minimum: 1

    maximum: 400000



  mobileye,olb:

    $ref: /schemas/types.yaml#/definitions/phandle-array

    items:

      - items:

          - description: Phandle to OLB system controller node.

          - description: Platform-wide controller ID (integer starting from zero).

    description:

      The phandle pointing to OLB system controller node, with the I2C

      controller index.



required:

  - compatible

  - reg
@@ -79,6 +88,20 @@ required: 


unevaluatedProperties: false



allOf:

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

  - if:

      properties:

        compatible:

          contains:

            const: mobileye,eyeq5-i2c

    then:

      required:

        - mobileye,olb

    else:

      properties:

        mobileye,olb: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>
@@ -111,5 +134,19 @@ examples: 
      clocks = <&i2c0clk>, <&pclki2c0>;

      clock-names = "mclk", "apb_pclk";

    };

  - |

    #include <dt-bindings/interrupt-controller/mips-gic.h>

    i2c@300000 {

      compatible = "mobileye,eyeq5-i2c", "arm,primecell";

      reg = <0x300000 0x1000>;

      interrupt-parent = <&gic>;

      interrupts = <GIC_SHARED 1 IRQ_TYPE_LEVEL_HIGH>;

      clock-frequency = <400000>;

      #address-cells = <1>;

      #size-cells = <0>;

      clocks = <&i2c_ser_clk>, <&i2c_clk>;

      clock-names = "i2cclk", "apb_pclk";

      mobileye,olb = <&olb 0>;

    };



...