kernel_samsung_msm8974/Documentation/devicetree/bindings/input/misc/hbtp_input.txt

Platform device for Host Based Touch Processing (hbtp)

Required properties:

 - compatible		: should be "qcom,hbtp"
 - vcc_ana-supply	: Analog power supply needed to power device

Example:
	&soc {
		hbtp {
			compatible = "qcom,hbtp";
			vcc_ana-supply = <&pm8941_l18>;
		};
	};