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
|
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Raspberry Pi VideoCore firmware driver
maintainers:
- Eric Anholt <eric@anholt.net>
- Stefan Wahren <wahrenst@gmx.net>
select:
properties:
compatible:
contains:
const: raspberrypi,bcm2835-firmware
required:
- compatible
properties:
compatible:
items:
- const: raspberrypi,bcm2835-firmware
- const: simple-mfd
mboxes:
maxItems: 1
clocks:
type: object
additionalProperties: false
properties:
compatible:
const: raspberrypi,firmware-clocks
"#clock-cells":
const: 1
description: >
The argument is the ID of the clocks contained by the
firmware messages.
required:
- compatible
- "#clock-cells"
gpio:
type: object
additionalProperties: false
properties:
compatible:
const: raspberrypi,firmware-gpio
gpio-controller: true
"#gpio-cells":
const: 2
description:
The first cell is the pin number, and the second cell is used to
specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW).
gpio-line-names:
minItems: 8
required:
- compatible
- gpio-controller
- "#gpio-cells"
reset:
type: object
additionalProperties: false
properties:
compatible:
const: raspberrypi,firmware-reset
"#reset-cells":
const: 1
description: >
The argument is the ID of the firmware reset line to affect.
required:
- compatible
- "#reset-cells"
pwm:
type: object
additionalProperties: false
properties:
compatible:
const: raspberrypi,firmware-poe-pwm
"#pwm-cells":
# See pwm.yaml in this directory for a description of the cells format.
const: 2
required:
- compatible
- "#pwm-cells"
touchscreen:
type: object
$ref: /schemas/input/touchscreen/touchscreen.yaml#
additionalProperties: false
properties:
compatible:
const: raspberrypi,firmware-ts
firmware:
deprecated: true
description: Phandle to RPi's firmware device node.
touchscreen-size-x: true
touchscreen-size-y: true
touchscreen-inverted-x: true
touchscreen-inverted-y: true
touchscreen-swapped-x-y: true
required:
- compatible
required:
- compatible
- mboxes
additionalProperties: false
examples:
- |
firmware {
compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
mboxes = <&mailbox>;
firmware_clocks: clocks {
compatible = "raspberrypi,firmware-clocks";
#clock-cells = <1>;
};
expgpio: gpio {
compatible = "raspberrypi,firmware-gpio";
gpio-controller;
#gpio-cells = <2>;
};
reset: reset {
compatible = "raspberrypi,firmware-reset";
#reset-cells = <1>;
};
pwm: pwm {
compatible = "raspberrypi,firmware-poe-pwm";
#pwm-cells = <2>;
};
ts: touchscreen {
compatible = "raspberrypi,firmware-ts";
touchscreen-size-x = <800>;
touchscreen-size-y = <480>;
};
};
...
|
