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