blob: a191a04e681c46d89a4e9cd9fa7a61494036261b (
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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/nfc/marvell,nci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Marvell International Ltd. NCI NFC controller
maintainers:
- Krzysztof Kozlowski <krzk@kernel.org>
properties:
compatible:
enum:
- marvell,nfc-i2c
- marvell,nfc-spi
- marvell,nfc-uart
hci-muxed:
type: boolean
description: |
Specifies that the chip is muxing NCI over HCI frames
interrupts:
maxItems: 1
reg:
maxItems: 1
reset-n-io:
$ref: "/schemas/types.yaml#/definitions/phandle-array"
maxItems: 1
description: |
Output GPIO pin used to reset the chip (active low)
i2c-int-falling:
type: boolean
description: |
For I2C type of connection. Specifies that the chip read event shall be
trigged on falling edge.
i2c-int-rising:
type: boolean
description: |
For I2C type of connection. Specifies that the chip read event shall be
trigged on rising edge.
break-control:
type: boolean
description: |
For UART type of connection. Specifies that the chip needs specific break
management.
flow-control:
type: boolean
description: |
For UART type of connection. Specifies that the chip is using RTS/CTS.
spi-cpha: true
spi-cpol: true
required:
- compatible
allOf:
- if:
properties:
compatible:
contains:
const: marvell,nfc-i2c
then:
properties:
break-control: false
flow-control: false
spi-cpha: false
spi-cpol: false
spi-max-frequency: false
required:
- reg
- if:
properties:
compatible:
contains:
const: marvell,nfc-spi
then:
$ref: /schemas/spi/spi-peripheral-props.yaml#
properties:
break-control: false
flow-control: false
i2c-int-falling: false
i2c-int-rising: false
required:
- reg
- if:
properties:
compatible:
contains:
const: marvell,nfc-uart
then:
properties:
i2c-int-falling: false
i2c-int-rising: false
interrupts: false
spi-cpha: false
spi-cpol: false
spi-max-frequency: false
reg: false
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
nfc@8 {
compatible = "marvell,nfc-i2c";
reg = <0x8>;
interrupt-parent = <&gpio3>;
interrupts = <21 IRQ_TYPE_EDGE_RISING>;
i2c-int-rising;
reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
};
};
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
nfc@0 {
compatible = "marvell,nfc-spi";
reg = <0>;
spi-max-frequency = <3000000>;
spi-cpha;
spi-cpol;
interrupt-parent = <&gpio1>;
interrupts = <17 IRQ_TYPE_EDGE_RISING>;
reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
};
};
- |
#include <dt-bindings/gpio/gpio.h>
uart {
nfc {
compatible = "marvell,nfc-uart";
reset-n-io = <&gpio3 16 GPIO_ACTIVE_HIGH>;
hci-muxed;
flow-control;
};
};
|
