1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/arm/bcm/ras 4 $id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Raspberry Pi VideoCore firmware driver 7 title: Raspberry Pi VideoCore firmware driver
8 8
9 maintainers: 9 maintainers:
10 - Eric Anholt <eric@anholt.net> 10 - Eric Anholt <eric@anholt.net>
11 - Stefan Wahren <wahrenst@gmx.net> 11 - Stefan Wahren <wahrenst@gmx.net>
12 12
13 select: 13 select:
14 properties: 14 properties:
15 compatible: 15 compatible:
16 contains: 16 contains:
17 const: raspberrypi,bcm2835-firmware 17 const: raspberrypi,bcm2835-firmware
18 18
19 required: 19 required:
20 - compatible 20 - compatible
21 21
22 properties: 22 properties:
23 compatible: 23 compatible:
24 items: 24 items:
25 - const: raspberrypi,bcm2835-firmware 25 - const: raspberrypi,bcm2835-firmware
26 - const: simple-mfd 26 - const: simple-mfd
27 27
28 mboxes: 28 mboxes:
29 maxItems: 1 29 maxItems: 1
30 30
31 clocks: 31 clocks:
32 type: object 32 type: object
33 additionalProperties: false 33 additionalProperties: false
34 34
35 properties: 35 properties:
36 compatible: 36 compatible:
37 const: raspberrypi,firmware-clocks 37 const: raspberrypi,firmware-clocks
38 38
39 "#clock-cells": 39 "#clock-cells":
40 const: 1 40 const: 1
41 description: > 41 description: >
42 The argument is the ID of the clocks 42 The argument is the ID of the clocks contained by the
43 firmware messages. 43 firmware messages.
44 44
45 required: 45 required:
46 - compatible 46 - compatible
47 - "#clock-cells" 47 - "#clock-cells"
48 48
49 gpio: 49 gpio:
50 type: object 50 type: object
51 additionalProperties: false 51 additionalProperties: false
52 52
53 properties: 53 properties:
54 compatible: 54 compatible:
55 const: raspberrypi,firmware-gpio 55 const: raspberrypi,firmware-gpio
56 56
57 gpio-controller: true 57 gpio-controller: true
58 58
59 "#gpio-cells": 59 "#gpio-cells":
60 const: 2 60 const: 2
61 description: 61 description:
62 The first cell is the pin number, an 62 The first cell is the pin number, and the second cell is used to
63 specify the gpio polarity (GPIO_ACTI 63 specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW).
64 64
65 gpio-line-names: 65 gpio-line-names:
66 minItems: 8 66 minItems: 8
67 67
68 required: 68 required:
69 - compatible 69 - compatible
70 - gpio-controller 70 - gpio-controller
71 - "#gpio-cells" 71 - "#gpio-cells"
72 72
73 reset: 73 reset:
74 type: object 74 type: object
75 additionalProperties: false 75 additionalProperties: false
76 76
77 properties: 77 properties:
78 compatible: 78 compatible:
79 const: raspberrypi,firmware-reset 79 const: raspberrypi,firmware-reset
80 80
81 "#reset-cells": 81 "#reset-cells":
82 const: 1 82 const: 1
83 description: > 83 description: >
84 The argument is the ID of the firmwa 84 The argument is the ID of the firmware reset line to affect.
85 85
86 required: 86 required:
87 - compatible 87 - compatible
88 - "#reset-cells" 88 - "#reset-cells"
89 89
90 pwm: 90 pwm:
91 type: object 91 type: object
92 additionalProperties: false 92 additionalProperties: false
93 93
94 properties: 94 properties:
95 compatible: 95 compatible:
96 const: raspberrypi,firmware-poe-pwm 96 const: raspberrypi,firmware-poe-pwm
97 97
98 "#pwm-cells": 98 "#pwm-cells":
99 # See pwm.yaml in this directory for a 99 # See pwm.yaml in this directory for a description of the cells format.
100 const: 2 100 const: 2
101 101
102 required: 102 required:
103 - compatible 103 - compatible
104 - "#pwm-cells" 104 - "#pwm-cells"
105 105
106 required: 106 required:
107 - compatible 107 - compatible
108 - mboxes 108 - mboxes
109 109
110 additionalProperties: false 110 additionalProperties: false
111 111
112 examples: 112 examples:
113 - | 113 - |
114 firmware { 114 firmware {
115 compatible = "raspberrypi,bcm2835-firm 115 compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
116 mboxes = <&mailbox>; 116 mboxes = <&mailbox>;
117 117
118 firmware_clocks: clocks { 118 firmware_clocks: clocks {
119 compatible = "raspberrypi,firmware 119 compatible = "raspberrypi,firmware-clocks";
120 #clock-cells = <1>; 120 #clock-cells = <1>;
121 }; 121 };
122 122
123 expgpio: gpio { 123 expgpio: gpio {
124 compatible = "raspberrypi,firmware 124 compatible = "raspberrypi,firmware-gpio";
125 gpio-controller; 125 gpio-controller;
126 #gpio-cells = <2>; 126 #gpio-cells = <2>;
127 }; 127 };
128 128
129 reset: reset { 129 reset: reset {
130 compatible = "raspberrypi,firmware 130 compatible = "raspberrypi,firmware-reset";
131 #reset-cells = <1>; 131 #reset-cells = <1>;
132 }; 132 };
133 133
134 pwm: pwm { 134 pwm: pwm {
135 compatible = "raspberrypi,firmware 135 compatible = "raspberrypi,firmware-poe-pwm";
136 #pwm-cells = <2>; 136 #pwm-cells = <2>;
137 }; 137 };
138 }; 138 };
139 ... 139 ...
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