| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/net/nfc/nxp,pn544.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: NXP Semiconductors PN544 NFC Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Krzysztof Kozlowski <krzk@kernel.org> |
| 11 | |
| 12 | properties: |
| 13 | compatible: |
| 14 | const: nxp,pn544-i2c |
| 15 | |
| 16 | reg: |
| 17 | maxItems: 1 |
| 18 | |
| 19 | interrupts: |
| 20 | maxItems: 1 |
| 21 | |
| 22 | enable-gpios: |
| 23 | description: Output GPIO pin used for enabling/disabling the PN544 |
| 24 | maxItems: 1 |
| 25 | |
| 26 | firmware-gpios: |
| 27 | description: Output GPIO pin used to enter firmware download mode |
| 28 | maxItems: 1 |
| 29 | |
| 30 | required: |
| 31 | - compatible |
| 32 | - reg |
| 33 | - interrupts |
| 34 | - enable-gpios |
| 35 | - firmware-gpios |
| 36 | |
| 37 | additionalProperties: false |
| 38 | |
| 39 | examples: |
| 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 | }; |