1* STMicroelectronics SAS. ST21NFCB NFC Controller
2
3Required properties:
4- compatible: Should be "st,st21nfcb-i2c".
5- clock-frequency: I²C work frequency.
6- reg: address on the bus
7- interrupt-parent: phandle for the interrupt gpio controller
8- interrupts: GPIO interrupt to which the chip is connected
9- reset-gpios: Output GPIO pin used to reset the ST21NFCB
10
11Optional SoC Specific Properties:
12- pinctrl-names: Contains only one value - "default".
13- pintctrl-0: Specifies the pin control groups used for this controller.
14
15Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2):
16
17&i2c2 {
18
19	status = "okay";
20
21	st21nfcb: st21nfcb@8 {
22
23		compatible = "st,st21nfcb-i2c";
24
25		reg = <0x08>;
26		clock-frequency = <400000>;
27
28		interrupt-parent = <&gpio5>;
29		interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
30
31		reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
32	};
33};
34