51 lines
1.3 KiB
Plaintext
51 lines
1.3 KiB
Plaintext
* STMicroelectronics : NFC Transceiver ST95HF
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ST NFC Transceiver is required to attach with SPI bus.
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ST95HF node should be defined in DT as SPI slave device of SPI
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master with which ST95HF transceiver is physically connected.
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The properties defined below are required to be the part of DT
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to include ST95HF transceiver into the platform.
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Required properties:
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===================
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- reg: Address of SPI slave "ST95HF transceiver" on SPI master bus.
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- compatible: should be "st,st95hf" for ST95HF NFC transceiver
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- spi-max-frequency: Max. operating SPI frequency for ST95HF
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transceiver.
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- enable-gpio: GPIO line to enable ST95HF transceiver.
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- interrupt-parent : Standard way to specify the controller to which
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ST95HF transceiver's interrupt is routed.
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- interrupts : Standard way to define ST95HF transceiver's out
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interrupt.
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Optional property:
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=================
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- st95hfvin-supply : This is an optional property. It contains a
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phandle to ST95HF transceiver's regulator supply node in DT.
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Example:
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=======
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spi@9840000 {
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reg = <0x9840000 0x110>;
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#address-cells = <1>;
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#size-cells = <0>;
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cs-gpios = <&pio0 4>;
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status = "okay";
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st95hf@0{
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reg = <0>;
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compatible = "st,st95hf";
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status = "okay";
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spi-max-frequency = <1000000>;
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enable-gpio = <&pio4 0>;
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interrupt-parent = <&pio0>;
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interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
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};
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};
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