Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/i2c/mellanox,i2c-mlxbf.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Mellanox I2C SMBus on BlueField SoCs
   8
   9 maintainers:
  10   - Khalil Blaiech <kblaiech@nvidia.com>
  11
  12 allOf:
  13   - $ref: /schemas/i2c/i2c-controller.yaml#
  14
  15 properties:
  16   compatible:
  17     enum:
  18       - mellanox,i2c-mlxbf1
  19       - mellanox,i2c-mlxbf2
  20
  21   reg:
  22     minItems: 3
  23     maxItems: 4
  24     items:
  25       - description: Smbus block registers
  26       - description: Cause master registers
  27       - description: Cause slave registers
  28       - description: Cause coalesce registers
  29
  30   interrupts:
  31     maxItems: 1
  32
  33   clock-frequency:
  34     enum: [ 100000, 400000, 1000000 ]
  35     description:
  36       bus frequency used to configure timing registers;
  37       The frequency is expressed in Hz. Default is 100000.
  38
  39 required:
  40   - compatible
  41   - reg
  42   - interrupts
  43
  44 unevaluatedProperties: false
  45
  46 if:
  47   properties:
  48     compatible:
  49       contains:
  50         enum:
  51           - mellanox,i2c-mlxbf1
  52
  53 then:
  54   properties:
  55     reg:
  56       maxItems: 3
  57
  58 examples:
  59   - |
  60     i2c@2804000 {
  61         compatible = "mellanox,i2c-mlxbf1";
  62         reg = <0x02804000 0x800>,
  63               <0x02801200 0x020>,
  64               <0x02801260 0x020>;
  65         interrupts = <57>;
  66         clock-frequency = <100000>;
  67     };
  68
  69   - |
  70     i2c@2808800 {
  71         compatible = "mellanox,i2c-mlxbf2";
  72         reg = <0x02808800 0x600>,
  73               <0x02808e00 0x020>,
  74               <0x02808e20 0x020>,
  75               <0x02808e40 0x010>;
  76         interrupts = <57>;
  77         clock-frequency = <400000>;
  78     };