Documentation/devicetree/bindings/net/nfc/st95hf.txt

   1 * STMicroelectronics : NFC Transceiver ST95HF
   2
   3 ST NFC Transceiver is required to attach with SPI bus.
   4 ST95HF node should be defined in DT as SPI slave device of SPI
   5 master with which ST95HF transceiver is physically connected.
   6 The properties defined below are required to be the part of DT
   7 to include ST95HF transceiver into the platform.
   8
   9 Required properties:
  10 ===================
  11 - reg: Address of SPI slave "ST95HF transceiver" on SPI master bus.
  12
  13 - compatible: should be "st,st95hf" for ST95HF NFC transceiver
  14
  15 - spi-max-frequency: Max. operating SPI frequency for ST95HF
  16         transceiver.
  17
  18 - enable-gpio: GPIO line to enable ST95HF transceiver.
  19
  20 - interrupt-parent : Standard way to specify the controller to which
  21         ST95HF transceiver's interrupt is routed.
  22
  23 - interrupts : Standard way to define ST95HF transceiver's out
  24         interrupt.
  25
  26 Optional property:
  27 =================
  28 - st95hfvin-supply : This is an optional property. It contains a
  29         phandle to ST95HF transceiver's regulator supply node in DT.
  30
  31 Example:
  32 =======
  33 spi@9840000 {
  34         reg = <0x9840000 0x110>;
  35         #address-cells = <1>;
  36         #size-cells = <0>;
  37         cs-gpios = <&pio0 4>;
  38
  39         st95hf@0{
  40                 reg = <0>;
  41                 compatible = "st,st95hf";
  42                 spi-max-frequency = <1000000>;
  43                 enable-gpio = <&pio4 0>;
  44                 interrupt-parent = <&pio0>;
  45                 interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
  46         };
  47
  48 };