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     items:
  24       - description: Smbus block registers
  25       - description: Cause master registers
  26       - description: Cause slave registers
  27       - description: Cause coalesce registers
  28
  29   interrupts:
  30     maxItems: 1
  31
  32   clock-frequency:
  33     enum: [ 100000, 400000, 1000000 ]
  34     description:
  35       bus frequency used to configure timing registers;
  36       The frequency is expressed in Hz. Default is 100000.
  37
  38 required:
  39   - compatible
  40   - reg
  41   - interrupts
  42
  43 unevaluatedProperties: false
  44
  45 if:
  46   properties:
  47     compatible:
  48       contains:
  49         enum:
  50           - mellanox,i2c-mlxbf1
  51
  52 then:
  53   properties:
  54     reg:
  55       maxItems: 3
  56
  57 examples:
  58   - |
  59     i2c@2804000 {
  60         compatible = "mellanox,i2c-mlxbf1";
  61         reg = <0x02804000 0x800>,
  62               <0x02801200 0x020>,
  63               <0x02801260 0x020>;
  64         interrupts = <57>;
  65         clock-frequency = <100000>;
  66     };
  67
  68   - |
  69     i2c@2808800 {
  70         compatible = "mellanox,i2c-mlxbf2";
  71         reg = <0x02808800 0x600>,
  72               <0x02808e00 0x020>,
  73               <0x02808e20 0x020>,
  74               <0x02808e40 0x010>;
  75         interrupts = <57>;
  76         clock-frequency = <400000>;
  77     };