blob: 081742c2b726cbb184ff3981918848b882180149 (
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
100
101
102
103
|
# 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>
- Krzysztof Opasiak <k.opasiak@samsung.com>
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>
i2c4 {
#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 {
status = "okay";
nfc {
compatible = "samsung,s3fwrn82";
en-gpios = <&gpio 20 GPIO_ACTIVE_HIGH>;
wake-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
status = "okay";
};
};
|
