1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Analog Devices AD7768-1 ADC device driver
8
9 maintainers:
10 - Michael Hennerich <michael.hennerich@analog.com>
11
12 description: |
13 Datasheet at:
14 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
15
16 properties:
17 compatible:
18 const: adi,ad7768-1
19
20 reg:
21 maxItems: 1
22
23 clocks:
24 maxItems: 1
25
26 clock-names:
27 const: mclk
28
29 interrupts:
30 maxItems: 1
31
32 '#address-cells':
33 const: 1
34
35 '#size-cells':
36 const: 0
37
38 vref-supply:
39 description:
40 ADC reference voltage supply
41
42 adi,sync-in-gpios:
43 maxItems: 1
44 description:
45 Enables synchronization of multiple devices that require simultaneous
46 sampling. A pulse is always required if the configuration is changed
47 in any way, for example if the filter decimation rate changes.
48 As the line is active low, it should be marked GPIO_ACTIVE_LOW.
49
50 reset-gpios:
51 maxItems: 1
52
53 spi-max-frequency: true
54
55 spi-cpol: true
56
57 spi-cpha: true
58
59 "#io-channel-cells":
60 const: 1
61
62 required:
63 - compatible
64 - reg
65 - clocks
66 - clock-names
67 - vref-supply
68 - spi-cpol
69 - spi-cpha
70 - adi,sync-in-gpios
71
72 patternProperties:
73 "^channel@([0-9]|1[0-5])$":
74 type: object
75 description: |
76 Represents the external channels which are connected to the device.
77
78 properties:
79 reg:
80 maxItems: 1
81 description: |
82 The channel number.
83
84 label:
85 description: |
86 Unique name to identify which channel this is.
87 required:
88 - reg
89 additionalProperties: false
90
91 additionalProperties: false
92
93 examples:
94 - |
95 #include <dt-bindings/interrupt-controller/irq.h>
96 #include <dt-bindings/gpio/gpio.h>
97 spi {
98 #address-cells = <1>;
99 #size-cells = <0>;
100
101 adc@0 {
102 compatible = "adi,ad7768-1";
103 reg = <0>;
104 spi-max-frequency = <2000000>;
105 spi-cpol;
106 spi-cpha;
107 vref-supply = <&adc_vref>;
108 interrupts = <25 IRQ_TYPE_EDGE_RISING>;
109 interrupt-parent = <&gpio>;
110 adi,sync-in-gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
111 reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
112 clocks = <&ad7768_mclk>;
113 clock-names = "mclk";
114
115 #address-cells = <1>;
116 #size-cells = <0>;
117
118 channel@0 {
119 reg = <0>;
120 label = "channel_0";
121 };
122 };
123 };
124 ...
Cache object: f8649b82903c37ffaf74e7ac51ad9306
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