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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/net/nfc/nxp,pn544.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: NXP Semiconductors PN544 NFC Controller8 9maintainers:10 - Krzysztof Kozlowski <krzk@kernel.org>11 12properties:13 compatible:14 const: nxp,pn544-i2c15 16 reg:17 maxItems: 118 19 interrupts:20 maxItems: 121 22 enable-gpios:23 description: Output GPIO pin used for enabling/disabling the PN54424 maxItems: 125 26 firmware-gpios:27 description: Output GPIO pin used to enter firmware download mode28 maxItems: 129 30required:31 - compatible32 - reg33 - interrupts34 - enable-gpios35 - firmware-gpios36 37additionalProperties: false38 39examples:40 - |41 #include <dt-bindings/gpio/gpio.h>42 #include <dt-bindings/interrupt-controller/irq.h>43 44 i2c {45 #address-cells = <1>;46 #size-cells = <0>;47 48 nfc@28 {49 compatible = "nxp,pn544-i2c";50 reg = <0x28>;51 52 interrupt-parent = <&gpio1>;53 interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;54 55 enable-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;56 firmware-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;57 };58 };59