Commit 3c57b395 authored by Lars Poeschel's avatar Lars Poeschel Committed by David S. Miller
Browse files

nfc: pn532: Add uart phy docs and rename it 



This adds documentation about the uart phy to the pn532 binding doc. As
the filename "pn533-i2c.txt" is not appropriate any more, rename it to
the more general "pn532.txt".
This also documents the deprecation of the compatible strings ending
with "...-i2c".

Cc: Johan Hovold <johan@kernel.org>
Cc: Simon Horman <horms@verge.net.au>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLars Poeschel <poeschel@lemonage.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3d5f3a67

Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt→Documentation/devicetree/bindings/net/nfc/pn532.txt

+46 −0
Original line number Diff line number Diff line 
* NXP Semiconductors PN532 NFC Controller



Required properties:

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

- compatible: Should be

    - "nxp,pn532" Place a node with this inside the devicetree node of the bus

                  where the NFC chip is connected to.

                  Currently the kernel has phy bindings for uart and i2c.

    - "nxp,pn532-i2c" (DEPRECATED) only works for the i2c binding.

    - "nxp,pn533-i2c" (DEPRECATED) only works for the i2c binding.



Required properties if connected on i2c:

- clock-frequency: I²C work frequency.

- reg: address on the bus

- reg: for the I²C bus address. This is fixed at 0x24 for the PN532.

- interrupts: GPIO interrupt to which the chip is connected



Optional SoC Specific Properties:
@@ -15,9 +22,9 @@ Example (for ARM-based BeagleBone with PN532 on I2C2): 
&i2c2 {





	pn532: pn532@24 {

	pn532: nfc@24 {



		compatible = "nxp,pn532-i2c";

		compatible = "nxp,pn532";



		reg = <0x24>;

		clock-frequency = <400000>;
@@ -27,3 +34,13 @@ Example (for ARM-based BeagleBone with PN532 on I2C2): 


	};

};



Example (for PN532 connected via uart):



uart4: serial@49042000 {

        compatible = "ti,omap3-uart";



        pn532: nfc {

                compatible = "nxp,pn532";

        };

};

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