1* STMicroelectronics SAS. ST21NFCA NFC Controller
2
3Required properties:
4- compatible: Should be "st,st21nfca-i2c".
5- clock-frequency: I²C work frequency.
6- reg: address on the bus
7- enable-gpios: Output GPIO pin used for enabling/disabling the ST21NFCA
8
9Optional SoC Specific Properties:
10- pinctrl-names: Contains only one value - "default".
11- pintctrl-0: Specifies the pin control groups used for this controller.
12- ese-present: Specifies that an ese is physically connected to the nfc
13controller.
14- uicc-present: Specifies that the uicc swp signal can be physically
15connected to the nfc controller.
16
17Example (for ARM-based BeagleBoard xM with ST21NFCA on I2C2):
18
19&i2c2 {
20
21
22	st21nfca: st21nfca@1 {
23
24		compatible = "st,st21nfca-i2c";
25
26		reg = <0x01>;
27		clock-frequency = <400000>;
28
29		interrupt-parent = <&gpio5>;
30		interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
31
32		enable-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
33
34		ese-present;
35		uicc-present;
36	};
37};
38