summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
blob: 12baee45752c7bb3bdf1982232ab72ec8a6cc8b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/nfc/samsung,s3fwrn5.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung S3FWRN5 NCI NFC Controller

maintainers:
  - Krzysztof Kozlowski <krzk@kernel.org>

properties:
  compatible:
    enum:
      - samsung,s3fwrn5-i2c
      - samsung,s3fwrn82

  en-gpios:
    maxItems: 1
    description:
      Output GPIO pin used for enabling/disabling the chip

  interrupts:
    maxItems: 1

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  wake-gpios:
    maxItems: 1
    description:
      Output GPIO pin used to enter firmware mode and sleep/wakeup control

  s3fwrn5,en-gpios:
    maxItems: 1
    deprecated: true
    description:
      Use en-gpios

  s3fwrn5,fw-gpios:
    maxItems: 1
    deprecated: true
    description:
      Use wake-gpios

additionalProperties: false

required:
  - compatible
  - en-gpios
  - wake-gpios

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: samsung,s3fwrn5-i2c
    then:
      required:
        - interrupts
        - reg

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/irq.h>

    i2c {
        #address-cells = <1>;
        #size-cells = <0>;

        s3fwrn5@27 {
            compatible = "samsung,s3fwrn5-i2c";
            reg = <0x27>;

            interrupt-parent = <&gpa1>;
            interrupts = <3 IRQ_TYPE_EDGE_RISING>;

            en-gpios = <&gpf1 4 GPIO_ACTIVE_HIGH>;
            wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>;

            clocks = <&rpmcc 20>;
        };
    };
  # UART example on Raspberry Pi
  - |
    uart0 {
        nfc {
            compatible = "samsung,s3fwrn82";

            en-gpios = <&gpio 20 GPIO_ACTIVE_HIGH>;
            wake-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;

        };
    };