Commit 7ebb88e5 authored by Mark A. Greer's avatar Mark A. Greer Committed by Samuel Ortiz
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NFC: trf7970a: Add DTS Documentation 



Describe the properies used by the trf7970a
RFID/NFC/15693 transceiver driver.

Signed-off-by: default avatarMark A. Greer <mgreer@animalcreek.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 9d9304b3

Documentation/devicetree/bindings/net/nfc/trf7970a.txt

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* Texas Instruments TRF7970A RFID/NFC/15693 Transceiver



Required properties:

- compatible: Should be "ti,trf7970a".

- spi-max-frequency: Maximum SPI frequency (<= 2000000).

- interrupt-parent: phandle of parent interrupt handler.

- interrupts: A single interrupt specifier.

- ti,enable-gpios: Two GPIO entries used for 'EN' and 'EN2' pins on the

  TRF7970A.

- vin-supply: Regulator for supply voltage to VIN pin



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 TRF7970A on SPI1):



&spi1 {

	status = "okay";



	nfc@0 {

		compatible = "ti,trf7970a";

		reg = <0>;

		pinctrl-names = "default";

		pinctrl-0 = <&trf7970a_default>;

		spi-max-frequency = <2000000>;

		interrupt-parent = <&gpio2>;

		interrupts = <14 0>;

		ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>,

				  <&gpio2 5 GPIO_ACTIVE_LOW>;

		vin-supply = <&ldo3_reg>;

		status = "okay";

	};

};

MAINTAINERS

+1 −0
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@@ -6067,6 +6067,7 @@ F: include/net/nfc/ 
F:	include/uapi/linux/nfc.h

F:	drivers/nfc/

F:	include/linux/platform_data/pn544.h

F:	Documentation/devicetree/bindings/net/nfc/



NFS, SUNRPC, AND LOCKD CLIENTS

M:	Trond Myklebust <trond.myklebust@primarydata.com>