1 * NXP Semiconductors PN544 NFC Controller
4 - compatible: Should be "nxp,pn544-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 - enable-gpios: Output GPIO pin used for enabling/disabling the PN544
10 - firmware-gpios: Output GPIO pin used to enter firmware download mode
12 Optional SoC Specific Properties:
13 - pinctrl-names: Contains only one value - "default".
14 - pintctrl-0: Specifies the pin control groups used for this controller.
16 Example (for ARM-based BeagleBone with PN544 on I2C2):
23 compatible = "nxp,pn544-i2c";
26 clock-frequency = <400000>;
28 interrupt-parent = <&gpio1>;
29 interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
31 enable-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
32 firmware-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;