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     maxItems: 2
  47     items:
  48       - description: Reference clock for the I2C bus
  49       - description: Bus clock (Only for Armada 7K/8K)
  50
  51   clock-names:
  52     minItems: 1
  53     maxItems: 2
  54     items:
  55       - const: core
  56       - const: reg
  57     description:
  58       Mandatory if two clocks are used (only for Armada 7k and 8k).
  59
  60   resets:
  61     maxItems: 1
  62
  63 required:
  64   - compatible
  65   - reg
  66   - interrupts
  67
  68 allOf:
  69   - $ref: /schemas/i2c/i2c-controller.yaml#
  70   - if:
  71       properties:
  72         compatible:
  73           contains:
  74             enum:
  75               - allwinner,sun4i-a10-i2c
  76               - allwinner,sun6i-a31-i2c
  77
  78     then:
  79       required:
  80         - clocks
  81
  82   - if:
  83       properties:
  84         compatible:
  85           contains:
  86             const: allwinner,sun6i-a31-i2c
  87
  88     then:
  89       required:
  90         - resets
  91
  92 unevaluatedProperties: false
  93
  94 examples:
  95   - |
  96     i2c@11000 {
  97         compatible = "marvell,mv64xxx-i2c";
  98         reg = <0x11000 0x20>;
  99         interrupts = <29>;
 100         clock-frequency = <100000>;
 101     };
 102
 103   - |
 104     i2c@11000 {
 105         compatible = "marvell,mv78230-i2c";
 106         reg = <0x11000 0x100>;
 107         interrupts = <29>;
 108         clock-frequency = <100000>;
 109     };
 110
 111   - |
 112     i2c@701000 {
 113         compatible = "marvell,mv78230-i2c";
 114         reg = <0x701000 0x20>;
 115         interrupts = <29>;
 116         clock-frequency = <100000>;
 117         clock-names = "core", "reg";
 118         clocks = <&core_clock>, <&reg_clock>;
 119     };
 120
 121 ...