Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/i2c/marvell,mv64xxx-i2c.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Marvell MV64XXX I2C Controller Device Tree Bindings
   8
   9 maintainers:
  10   - Gregory CLEMENT <gregory.clement@bootlin.com>
  11
  12 properties:
  13   compatible:
  14     oneOf:
  15       - const: allwinner,sun4i-a10-i2c
  16       - items:
  17           - const: allwinner,sun7i-a20-i2c
  18           - const: allwinner,sun4i-a10-i2c
  19       - const: allwinner,sun6i-a31-i2c
  20       - items:
  21           - enum:
  22               - allwinner,sun8i-a23-i2c
  23               - allwinner,sun8i-a83t-i2c
  24               - allwinner,sun50i-a64-i2c
  25               - allwinner,sun50i-a100-i2c
  26               - allwinner,sun50i-h6-i2c
  27               - allwinner,sun50i-h616-i2c
  28           - const: allwinner,sun6i-a31-i2c
  29       - const: marvell,mv64xxx-i2c
  30       - const: marvell,mv78230-i2c
  31       - const: marvell,mv78230-a0-i2c
  32
  33     description:
  34       Only use "marvell,mv78230-a0-i2c" for a very rare, initial
  35       version of the SoC which had broken offload support. Linux
  36       auto-detects this and sets it appropriately.
  37
  38   reg:
  39     maxItems: 1
  40
  41   interrupts:
  42     maxItems: 1
  43
  44   clocks:
  45     minItems: 1
  46     items:
  47       - description: Reference clock for the I2C bus
  48       - description: Bus clock (Only for Armada 7K/8K)
  49
  50   clock-names:
  51     minItems: 1
  52     items:
  53       - const: core
  54       - const: reg
  55     description:
  56       Mandatory if two clocks are used (only for Armada 7k and 8k).
  57
  58   resets:
  59     maxItems: 1
  60
  61 required:
  62   - compatible
  63   - reg
  64   - interrupts
  65
  66 allOf:
  67   - $ref: /schemas/i2c/i2c-controller.yaml#
  68   - if:
  69       properties:
  70         compatible:
  71           contains:
  72             enum:
  73               - allwinner,sun4i-a10-i2c
  74               - allwinner,sun6i-a31-i2c
  75
  76     then:
  77       required:
  78         - clocks
  79
  80   - if:
  81       properties:
  82         compatible:
  83           contains:
  84             const: allwinner,sun6i-a31-i2c
  85
  86     then:
  87       required:
  88         - resets
  89
  90 unevaluatedProperties: false
  91
  92 examples:
  93   - |
  94     i2c@11000 {
  95         compatible = "marvell,mv64xxx-i2c";
  96         reg = <0x11000 0x20>;
  97         interrupts = <29>;
  98         clock-frequency = <100000>;
  99     };
 100
 101   - |
 102     i2c@11000 {
 103         compatible = "marvell,mv78230-i2c";
 104         reg = <0x11000 0x100>;
 105         interrupts = <29>;
 106         clock-frequency = <100000>;
 107     };
 108
 109   - |
 110     i2c@701000 {
 111         compatible = "marvell,mv78230-i2c";
 112         reg = <0x701000 0x20>;
 113         interrupts = <29>;
 114         clock-frequency = <100000>;
 115         clock-names = "core", "reg";
 116         clocks = <&core_clock>, <&reg_clock>;
 117     };
 118
 119 ...