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authorJohn W. Linville <linville@tuxdriver.com>2014-03-21 18:02:04 (GMT)
committerJohn W. Linville <linville@tuxdriver.com>2014-03-21 18:02:04 (GMT)
commit49c0ca17ee8dd3530f688052d4eb2ae6d3e55119 (patch)
tree251a4c566723b60505234a18ed864763ad0d0506 /Documentation/devicetree/bindings/net
parenta85ae0e97879f51bccd8511668b07d346d98b3eb (diff)
parent67b3bd4e65f0854aca70e0134d59b1daede49504 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r--Documentation/devicetree/bindings/net/nfc/trf7970a.txt34
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diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/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";
+ };
+};

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