Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: iio: adc: add ad4851
Add devicetree bindings for ad485x family.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://patch.msgid.link/20250214131955.31973-9-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Antoniu Miclaus
and committed by
Jonathan Cameron
e04b1b0c
208a94c8
+153
+153
Documentation/devicetree/bindings/iio/adc/adi,ad4851.yaml
+153
Documentation/devicetree/bindings/iio/adc/adi,ad4851.yaml
···
1
+
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2
+
# Copyright 2024 Analog Devices Inc.
3
+
%YAML 1.2
4
+
---
5
+
$id: http://devicetree.org/schemas/iio/adc/adi,ad4851.yaml#
6
+
$schema: http://devicetree.org/meta-schemas/core.yaml#
7
+
8
+
title: Analog Devices AD485X family
9
+
10
+
maintainers:
11
+
- Sergiu Cuciurean <sergiu.cuciurean@analog.com>
12
+
- Dragos Bogdan <dragos.bogdan@analog.com>
13
+
- Antoniu Miclaus <antoniu.miclaus@analog.com>
14
+
15
+
description: |
16
+
Analog Devices AD485X fully buffered, 8-channel simultaneous sampling,
17
+
16/20-bit, 1 MSPS data acquisition system (DAS) with differential, wide
18
+
common-mode range inputs.
19
+
20
+
https://www.analog.com/media/en/technical-documentation/data-sheets/ad4855.pdf
21
+
https://www.analog.com/media/en/technical-documentation/data-sheets/ad4856.pdf
22
+
https://www.analog.com/media/en/technical-documentation/data-sheets/ad4857.pdf
23
+
https://www.analog.com/media/en/technical-documentation/data-sheets/ad4858.pdf
24
+
25
+
$ref: /schemas/spi/spi-peripheral-props.yaml#
26
+
27
+
properties:
28
+
compatible:
29
+
enum:
30
+
- adi,ad4851
31
+
- adi,ad4852
32
+
- adi,ad4853
33
+
- adi,ad4854
34
+
- adi,ad4855
35
+
- adi,ad4856
36
+
- adi,ad4857
37
+
- adi,ad4858
38
+
- adi,ad4858i
39
+
40
+
reg:
41
+
maxItems: 1
42
+
43
+
vcc-supply: true
44
+
45
+
vee-supply: true
46
+
47
+
vdd-supply: true
48
+
49
+
vddh-supply: true
50
+
51
+
vddl-supply: true
52
+
53
+
vio-supply: true
54
+
55
+
vrefbuf-supply: true
56
+
57
+
vrefio-supply: true
58
+
59
+
pwms:
60
+
description: PWM connected to the CNV pin.
61
+
maxItems: 1
62
+
63
+
io-backends:
64
+
maxItems: 1
65
+
66
+
pd-gpios:
67
+
maxItems: 1
68
+
69
+
spi-max-frequency:
70
+
maximum: 25000000
71
+
72
+
'#address-cells':
73
+
const: 1
74
+
75
+
'#size-cells':
76
+
const: 0
77
+
78
+
patternProperties:
79
+
"^channel(@[0-7])?$":
80
+
$ref: adc.yaml
81
+
type: object
82
+
description: Represents the channels which are connected to the ADC.
83
+
84
+
properties:
85
+
reg:
86
+
description:
87
+
The channel number, as specified in the datasheet (from 0 to 7).
88
+
minimum: 0
89
+
maximum: 7
90
+
91
+
diff-channels:
92
+
description:
93
+
Each channel can be configured as a bipolar differential channel.
94
+
The ADC uses the same positive and negative inputs for this.
95
+
This property must be specified as 'reg' (or the channel number) for
96
+
both positive and negative inputs (i.e. diff-channels = <reg reg>).
97
+
Since the configuration is bipolar differential, the 'bipolar'
98
+
property is required.
99
+
items:
100
+
minimum: 0
101
+
maximum: 7
102
+
103
+
bipolar: true
104
+
105
+
required:
106
+
- reg
107
+
108
+
additionalProperties: false
109
+
110
+
required:
111
+
- compatible
112
+
- reg
113
+
- vcc-supply
114
+
- vee-supply
115
+
- vdd-supply
116
+
- vio-supply
117
+
- pwms
118
+
119
+
unevaluatedProperties: false
120
+
121
+
examples:
122
+
- |
123
+
spi {
124
+
#address-cells = <1>;
125
+
#size-cells = <0>;
126
+
127
+
adc@0{
128
+
#address-cells = <1>;
129
+
#size-cells = <0>;
130
+
compatible = "adi,ad4858";
131
+
reg = <0>;
132
+
spi-max-frequency = <10000000>;
133
+
vcc-supply = <&vcc>;
134
+
vdd-supply = <&vdd>;
135
+
vee-supply = <&vee>;
136
+
vddh-supply = <&vddh>;
137
+
vddl-supply = <&vddl>;
138
+
vio-supply = <&vio>;
139
+
pwms = <&pwm_gen 0 0>;
140
+
io-backends = <&iio_backend>;
141
+
142
+
channel@0 {
143
+
reg = <0>;
144
+
diff-channels = <0 0>;
145
+
bipolar;
146
+
};
147
+
148
+
channel@1 {
149
+
reg = <1>;
150
+
};
151
+
};
152
+
};
153
+
...