Documentation/devicetree/bindings/input/rmi4/rmi_i2c.txt

   1 Synaptics RMI4 I2C Device Binding
   2
   3 The Synaptics RMI4 core is able to support RMI4 devices using different
   4 transports and different functions. This file describes the device tree
   5 bindings for devices using the I2C transport driver. Complete documentation
   6 for other transports and functions can be found in
   7 Documentation/devicetree/bindings/input/rmi4.
   8
   9 Required Properties:
  10 - compatible: syna,rmi4-i2c
  11 - reg: I2C address
  12 - #address-cells: Set to 1 to indicate that the function child nodes
  13                     consist of only on uint32 value.
  14 - #size-cells: Set to 0 to indicate that the function child nodes do not
  15                 have a size property.
  16
  17 Optional Properties:
  18 - interrupts: interrupt which the rmi device is connected to.
  19 See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
  20
  21 - syna,reset-delay-ms: The number of milliseconds to wait after resetting the
  22                         device.
  23
  24 - syna,startup-delay-ms: The number of milliseconds to wait after powering on
  25                          the device.
  26
  27 - vdd-supply: VDD power supply.
  28 See ../regulator/regulator.txt
  29
  30 - vio-supply: VIO power supply
  31 See ../regulator/regulator.txt
  32
  33 Function Parameters:
  34 Parameters specific to RMI functions are contained in child nodes of the rmi device
  35  node. Documentation for the parameters of each function can be found in:
  36 Documentation/devicetree/bindings/input/rmi4/rmi_f*.txt.
  37
  38
  39
  40 Example:
  41         &i2c1 {
  42                 rmi4-i2c-dev@2c {
  43                         compatible = "syna,rmi4-i2c";
  44                         reg = <0x2c>;
  45                         #address-cells = <1>;
  46                         #size-cells = <0>;
  47                         interrupt-parent = <&gpio>;
  48                         interrupts = <4 2>;
  49
  50                         rmi4-f01@1 {
  51                                 reg = <0x1>;
  52                                 syna,nosleep-mode = <1>;
  53                         };
  54
  55                         rmi4-f11@11 {
  56                                 reg = <0x11>;
  57                                 touchscreen-inverted-y;
  58                                 syna,sensor-type = <2>;
  59                         };
  60                 };
  61         };