1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad7380.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Analog Devices Simultaneous Sampling Analog to Digital Converters
8
9 maintainers:
10 - Michael Hennerich <Michael.Hennerich@analog.com>
11 - Nuno Sá <nuno.sa@analog.com>
12
13 description: |
14 * https://www.analog.com/en/products/ad7380.html
15 * https://www.analog.com/en/products/ad7381.html
16 * https://www.analog.com/en/products/ad7383.html
17 * https://www.analog.com/en/products/ad7384.html
18 * https://www.analog.com/en/products/ad7386.html
19 * https://www.analog.com/en/products/ad7387.html
20 * https://www.analog.com/en/products/ad7388.html
21 * https://www.analog.com/en/products/ad7380-4.html
22 * https://www.analog.com/en/products/ad7381-4.html
23 * https://www.analog.com/en/products/ad7383-4.html
24 * https://www.analog.com/en/products/ad7384-4.html
25 * https://www.analog.com/en/products/ad7386-4.html
26 * https://www.analog.com/en/products/ad7387-4.html
27 * https://www.analog.com/en/products/ad7388-4.html
28
29
30 $ref: /schemas/spi/spi-peripheral-props.yaml#
31
32 properties:
33 compatible:
34 enum:
35 - adi,ad7380
36 - adi,ad7381
37 - adi,ad7383
38 - adi,ad7384
39 - adi,ad7386
40 - adi,ad7387
41 - adi,ad7388
42 - adi,ad7380-4
43 - adi,ad7381-4
44 - adi,ad7383-4
45 - adi,ad7384-4
46 - adi,ad7386-4
47 - adi,ad7387-4
48 - adi,ad7388-4
49
50 reg:
51 maxItems: 1
52
53 spi-max-frequency:
54 maximum: 80000000
55 spi-cpol: true
56 spi-cpha: true
57
58 vcc-supply:
59 description: A 3V to 3.6V supply that powers the chip.
60
61 vlogic-supply:
62 description:
63 A 1.65V to 3.6V supply for the logic pins.
64
65 refio-supply:
66 description:
67 A 2.5V to 3.3V supply for the external reference voltage. When omitted,
68 the internal 2.5V reference is used.
69
70 refin-supply:
71 description:
72 A 2.5V to 3.3V supply for external reference voltage, for ad7380-4 only.
73
74 aina-supply:
75 description:
76 The common mode voltage supply for the AINA- pin on pseudo-differential
77 chips.
78
79 ainb-supply:
80 description:
81 The common mode voltage supply for the AINB- pin on pseudo-differential
82 chips.
83
84 ainc-supply:
85 description:
86 The common mode voltage supply for the AINC- pin on pseudo-differential
87 chips.
88
89 aind-supply:
90 description:
91 The common mode voltage supply for the AIND- pin on pseudo-differential
92 chips.
93
94 interrupts:
95 description:
96 When the device is using 1-wire mode, this property is used to optionally
97 specify the ALERT interrupt.
98 maxItems: 1
99
100 required:
101 - compatible
102 - reg
103 - vcc-supply
104 - vlogic-supply
105
106 unevaluatedProperties: false
107
108 allOf:
109 # pseudo-differential chips require common mode voltage supplies,
110 # true differential chips don't use them
111 - if:
112 properties:
113 compatible:
114 enum:
115 - adi,ad7383
116 - adi,ad7384
117 - adi,ad7383-4
118 - adi,ad7384-4
119 then:
120 required:
121 - aina-supply
122 - ainb-supply
123 else:
124 properties:
125 aina-supply: false
126 ainb-supply: false
127 - if:
128 properties:
129 compatible:
130 enum:
131 - adi,ad7383-4
132 - adi,ad7384-4
133 then:
134 required:
135 - ainc-supply
136 - aind-supply
137 else:
138 properties:
139 ainc-supply: false
140 aind-supply: false
141
142 # ad7380-4 uses refin-supply as external reference.
143 # All other chips from ad738x family use refio as optional external reference.
144 # When refio-supply is omitted, internal reference is used.
145 - if:
146 properties:
147 compatible:
148 enum:
149 - adi,ad7380-4
150 then:
151 properties:
152 refio-supply: false
153 required:
154 - refin-supply
155 else:
156 properties:
157 refin-supply: false
158
159 examples:
160 - |
161 #include <dt-bindings/interrupt-controller/irq.h>
162
163 spi {
164 #address-cells = <1>;
165 #size-cells = <0>;
166
167 adc@0 {
168 compatible = "adi,ad7380";
169 reg = <0>;
170
171 spi-cpol;
172 spi-cpha;
173 spi-max-frequency = <80000000>;
174
175 interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
176 interrupt-parent = <&gpio0>;
177
178 vcc-supply = <&supply_3_3V>;
179 vlogic-supply = <&supply_3_3V>;
180 refio-supply = <&supply_2_5V>;
181 };
182 };
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