# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 --- $id: http://devicetree.org/schemas/net/nfc/ti,trf7970a.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Texas Instruments TRF7970A RFID/NFC/15693 Transceiver maintainers: - Krzysztof Kozlowski - Mark Greer properties: compatible: const: ti,trf7970a autosuspend-delay: $ref: /schemas/types.yaml#/definitions/uint32 description: | Specify autosuspend delay in milliseconds. clock-frequency: description: | Set to specify that the input frequency to the trf7970a is 13560000Hz or 27120000Hz en2-rf-quirk: type: boolean description: | Specify that the trf7970a being used has the "EN2 RF" erratum interrupts: maxItems: 1 irq-status-read-quirk: type: boolean description: | Specify that the trf7970a being used has the "IRQ Status Read" erratum reg: maxItems: 1 ti,enable-gpios: minItems: 1 maxItems: 2 description: | One or two GPIO entries used for 'EN' and 'EN2' pins on the TRF7970A. EN2 is optional. vdd-io-supply: description: | Regulator specifying voltage for VDD-IO vin-supply: description: | Regulator for supply voltage to VIN pin required: - compatible - interrupts - reg - spi-max-frequency - ti,enable-gpios - vin-supply allOf: - $ref: /schemas/spi/spi-peripheral-props.yaml# unevaluatedProperties: false examples: - | #include #include spi { #address-cells = <1>; #size-cells = <0>; nfc@0 { compatible = "ti,trf7970a"; reg = <0>; pinctrl-names = "default"; pinctrl-0 = <&trf7970a_default>; spi-max-frequency = <2000000>; interrupt-parent = <&gpio2>; interrupts = <14 0>; ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>, <&gpio2 5 GPIO_ACTIVE_HIGH>; vin-supply = <&ldo3_reg>; vdd-io-supply = <&ldo2_reg>; autosuspend-delay = <30000>; irq-status-read-quirk; en2-rf-quirk; clock-frequency = <27120000>; }; };