Commit 71c08eac authored by Michael Thalmeier's avatar Michael Thalmeier Committed by Samuel Ortiz
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nfc: pn533: Add device tree documentation for i2c phy 



Add pn533-i2c phy devicetree documentation

Signed-off-by: default avatarMichael Thalmeier <michael.thalmeier@hale.at>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent dd7bedcd

Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt

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* NXP Semiconductors PN532 NFC Controller



Required properties:

- compatible: Should be "nxp,pn532-i2c" or "nxp,pn533-i2c".

- clock-frequency: I²C work frequency.

- reg: address on the bus

- interrupt-parent: phandle for the interrupt gpio controller

- interrupts: GPIO interrupt to which the chip is connected



Optional SoC Specific Properties:

- pinctrl-names: Contains only one value - "default".

- pintctrl-0: Specifies the pin control groups used for this controller.



Example (for ARM-based BeagleBone with PN532 on I2C2):



&i2c2 {



	status = "okay";



	pn532: pn532@24 {



		compatible = "nxp,pn532-i2c";



		reg = <0x24>;

		clock-frequency = <400000>;



		interrupt-parent = <&gpio1>;

		interrupts = <17 IRQ_TYPE_EDGE_FALLING>;



	};

};