mirror of https://gitee.com/openkylin/linux.git
35 lines
1001 B
Plaintext
35 lines
1001 B
Plaintext
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* Texas Instruments TRF7970A RFID/NFC/15693 Transceiver
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Required properties:
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- compatible: Should be "ti,trf7970a".
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- spi-max-frequency: Maximum SPI frequency (<= 2000000).
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- interrupt-parent: phandle of parent interrupt handler.
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- interrupts: A single interrupt specifier.
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- ti,enable-gpios: Two GPIO entries used for 'EN' and 'EN2' pins on the
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TRF7970A.
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- vin-supply: Regulator for supply voltage to VIN pin
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Optional SoC Specific Properties:
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- pinctrl-names: Contains only one value - "default".
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- pintctrl-0: Specifies the pin control groups used for this controller.
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Example (for ARM-based BeagleBone with TRF7970A on SPI1):
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&spi1 {
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status = "okay";
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nfc@0 {
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compatible = "ti,trf7970a";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&trf7970a_default>;
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spi-max-frequency = <2000000>;
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interrupt-parent = <&gpio2>;
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interrupts = <14 0>;
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ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>,
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<&gpio2 5 GPIO_ACTIVE_LOW>;
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vin-supply = <&ldo3_reg>;
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status = "okay";
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};
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};
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