xref: /freebsd/sys/contrib/device-tree/Bindings/net/nfc/nxp,pn544.yaml (revision c9ccf3a32da427475985b85d7df023ccfb138c27) 
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
7title: NXP Semiconductors PN544 NFC Controller
8
9maintainers:
10  - Krzysztof Kozlowski <krzk@kernel.org>
11
12properties:
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
30required:
31  - compatible
32  - reg
33  - interrupts
34  - enable-gpios
35  - firmware-gpios
36
37additionalProperties: false
38
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