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     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     };
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