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- Synaptics RMI4 I2C Device Binding
- The Synaptics RMI4 core is able to support RMI4 devices using different
- transports and different functions. This file describes the device tree
- bindings for devices using the I2C transport driver. Complete documentation
- for other transports and functions can be found in
- Documentation/devicetree/bindings/input/rmi4.
- Required Properties:
- - compatible: syna,rmi4-i2c
- - reg: I2C address
- - #address-cells: Set to 1 to indicate that the function child nodes
- consist of only on uint32 value.
- - #size-cells: Set to 0 to indicate that the function child nodes do not
- have a size property.
- Optional Properties:
- - interrupts: interrupt which the rmi device is connected to.
- See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
- - syna,reset-delay-ms: The number of milliseconds to wait after resetting the
- device.
- - syna,startup-delay-ms: The number of milliseconds to wait after powering on
- the device.
- - vdd-supply: VDD power supply.
- See ../regulator/regulator.txt
- - vio-supply: VIO power supply
- See ../regulator/regulator.txt
- Function Parameters:
- Parameters specific to RMI functions are contained in child nodes of the rmi device
- node. Documentation for the parameters of each function can be found in:
- Documentation/devicetree/bindings/input/rmi4/rmi_f*.txt.
- Example:
- &i2c1 {
- rmi4-i2c-dev@2c {
- compatible = "syna,rmi4-i2c";
- reg = <0x2c>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupt-parent = <&gpio>;
- interrupts = <4 2>;
- rmi4-f01@1 {
- reg = <0x1>;
- syna,nosleep-mode = <1>;
- };
- rmi4-f11@11 {
- reg = <0x11>;
- touchscreen-inverted-y;
- syna,sensor-type = <2>;
- };
- };
- };
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