Kernel-4.18.0-80.el8_cypress,tm2-touchkey

Samsung tm2-touchkey

Required properties:

• compatible: must be “cypress,tm2-touchkey”
• reg: I2C address of the chip.
• interrupt-parent: a phandle for the interrupt controller (see interrupt
  binding0).
• interrupts: interrupt to which the chip is connected (see interrupt
  binding0).
• vcc-supply : internal regulator output. 1.8V
• vdd-supply : power supply for IC 3.3V

Example:
&i2c0 {
/* … */

    touchkey@20 {
        compatible = "cypress,tm2-touchkey";
        reg = <0x20>;
        interrupt-parent = <&gpa3>;
        interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
        vcc-supply=<&ldo32_reg>;
        vdd-supply=<&ldo33_reg>;
    };
};