Documentation/devicetree/bindings/net/nfc/st21nfca.txt

   1 * STMicroelectronics SAS. ST21NFCA NFC Controller
   2
   3 Required properties:
   4 - compatible: Should be "st,st21nfca-i2c".
   5 - clock-frequency: I²C work frequency.
   6 - reg: address on the bus
   7 - enable-gpios: Output GPIO pin used for enabling/disabling the ST21NFCA
   8
   9 Optional SoC Specific Properties:
  10 - pinctrl-names: Contains only one value - "default".
  11 - pintctrl-0: Specifies the pin control groups used for this controller.
  12 - ese-present: Specifies that an ese is physically connected to the nfc
  13 controller.
  14 - uicc-present: Specifies that the uicc swp signal can be physically
  15 connected to the nfc controller.
  16
  17 Example (for ARM-based BeagleBoard xM with ST21NFCA on I2C2):
  18
  19 &i2c2 {
  20
  21
  22         st21nfca: st21nfca@1 {
  23
  24                 compatible = "st,st21nfca-i2c";
  25
  26                 reg = <0x01>;
  27                 clock-frequency = <400000>;
  28
  29                 interrupt-parent = <&gpio5>;
  30                 interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
  31
  32                 enable-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
  33
  34                 ese-present;
  35                 uicc-present;
  36         };
  37 };