blob: 8dd3ef7bc56b560b1b4eb29c25feaf9f5d1785cc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
* 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";
};
};
|
