Documentation/devicetree/bindings/nfc/nfc-nci.txt

Qualcomm QCA199x NFC NCI device

Near Field Communication (NFC) device is based on NFC Controller Interface (NCI)

Required properties:

- compatible: "qcom,nfc-nci"
- reg: NCI i2c slave address.
- qcom,dis-gpio: specific gpio for hardware reset.
- qcom,irq-gpio: specific gpio for read interrupt.
- qcom,clk-src: nfc clock source ("BBCLK2", "RFCLK3", "GPCLK","GPCLK2" ...)
- qcom,clk-en-gpio: msm gpio clock,used ony if clock source is msm gpio
- vlogic-supply: LDO for power supply
- interrupt-parent: Should be phandle for the interrupt controller
                    that services interrupts for this device.
- interrupts: should contain the NFC interrupt. NFC has one read interrupt.
- qcom,clk-gpio: pmic gpio on which bbclk2 signal is coming.

LDO example:

	i2c@f9925000 { /* BLSP-1 QUP-3 */
		nfc-nci@e {
			compatible = "qcom,nfc-nci";
			reg = <0x0e>;
			qcom,irq-gpio = <&msmgpio 77 0x00>;
			qcom,dis-gpio = <&msmgpio 93 0x00>;
			qcom,clk-en-gpio = <&msmgpio 78 0x00>;
			qcom,clk-src = "GPCLK";
			interrupt-parent = <&msmgpio>;
			interrupts = <77 0>;
			qcom,clk-gpio = <&msmgpio 75 0x00>;
			vlogic-supply = <&pm8110_l14>;
		};
	};