Documentation/devicetree/bindings/i2c/i2c-imx.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/i2c-imx.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
   8
   9 maintainers:
  10   - Wolfram Sang <wolfram@the-dreams.de>
  11
  12 properties:
  13   compatible:
  14     oneOf:
  15       - const: fsl,imx1-i2c
  16       - const: fsl,imx21-i2c
  17       - const: fsl,vf610-i2c
  18       - items:
  19           - const: fsl,imx35-i2c
  20           - const: fsl,imx1-i2c
  21       - items:
  22           - enum:
  23             - fsl,imx25-i2c
  24             - fsl,imx27-i2c
  25             - fsl,imx31-i2c
  26             - fsl,imx50-i2c
  27             - fsl,imx51-i2c
  28             - fsl,imx53-i2c
  29             - fsl,imx6q-i2c
  30             - fsl,imx6sl-i2c
  31             - fsl,imx6sx-i2c
  32             - fsl,imx6sll-i2c
  33             - fsl,imx6ul-i2c
  34             - fsl,imx7s-i2c
  35             - fsl,imx8mq-i2c
  36             - fsl,imx8mm-i2c
  37             - fsl,imx8mn-i2c
  38             - fsl,imx8mp-i2c
  39           - const: fsl,imx21-i2c
  40
  41   reg:
  42     maxItems: 1
  43
  44   interrupts:
  45     maxItems: 1
  46
  47   clocks:
  48     maxItems: 1
  49
  50   clock-names:
  51     const: ipg
  52
  53   clock-frequency:
  54     enum: [ 100000, 400000 ]
  55
  56   dmas:
  57     items:
  58       - description: DMA controller phandle and request line for RX
  59       - description: DMA controller phandle and request line for TX
  60
  61   dma-names:
  62     items:
  63       - const: rx
  64       - const: tx
  65
  66   sda-gpios:
  67     maxItems: 1
  68
  69   scl-gpios:
  70     maxItems: 1
  71
  72 required:
  73   - compatible
  74   - reg
  75   - interrupts
  76   - clocks
  77
  78 additionalProperties: false
  79
  80 examples:
  81   - |
  82     #include <dt-bindings/clock/imx5-clock.h>
  83     #include <dt-bindings/clock/vf610-clock.h>
  84     #include <dt-bindings/gpio/gpio.h>
  85     #include <dt-bindings/interrupt-controller/arm-gic.h>
  86
  87     i2c@83fc4000 {
  88         compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
  89         reg = <0x83fc4000 0x4000>;
  90         interrupts = <63>;
  91         clocks = <&clks IMX5_CLK_I2C2_GATE>;
  92     };
  93
  94     i2c@40066000 {
  95         compatible = "fsl,vf610-i2c";
  96         reg = <0x40066000 0x1000>;
  97         interrupts = <71 IRQ_TYPE_LEVEL_HIGH>;
  98         clocks = <&clks VF610_CLK_I2C0>;
  99         clock-names = "ipg";
 100         dmas = <&edma0 0 50>,
 101                <&edma0 0 51>;
 102         dma-names = "rx", "tx";
 103     };