xref: /linux/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml (revision d8d2b1f81530988abe2e2bfaceec1c5d30b9a0b4) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/temperature/microchip,mcp9600.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Microchip MCP9600 and similar thermocouple EMF converters
8
9maintainers:
10  - Andrew Hepp <andrew.hepp@ahepp.dev>
11
12description:
13  https://ww1.microchip.com/downloads/en/DeviceDoc/MCP960X-Data-Sheet-20005426.pdf
14
15properties:
16  compatible:
17    oneOf:
18      - const: microchip,mcp9600
19      - items:
20          - const: microchip,mcp9601
21          - const: microchip,mcp9600
22
23  reg:
24    maxItems: 1
25
26  interrupts:
27    minItems: 1
28    maxItems: 6
29
30  interrupt-names:
31    minItems: 1
32    maxItems: 6
33    items:
34      enum:
35        - open-circuit
36        - short-circuit
37        - alert1
38        - alert2
39        - alert3
40        - alert4
41
42  thermocouple-type:
43    $ref: /schemas/types.yaml#/definitions/uint32
44    default: 3
45    description:
46      Type of thermocouple (THERMOCOUPLE_TYPE_K if omitted).
47      Use defines in dt-bindings/iio/temperature/thermocouple.h.
48      Supported types are B, E, J, K, N, R, S, T.
49
50  microchip,vsense:
51    type: boolean
52    description:
53      This flag indicates that the chip has been wired with VSENSE to
54      enable open and short circuit detect.
55
56  vdd-supply: true
57
58allOf:
59  - if:
60      properties:
61        compatible:
62          not:
63            contains:
64              const: microchip,mcp9601
65    then:
66      properties:
67        interrupts:
68          minItems: 1
69          maxItems: 4
70        interrupt-names:
71          minItems: 1
72          maxItems: 4
73          items:
74            enum:
75              - alert1
76              - alert2
77              - alert3
78              - alert4
79        microchip,vsense: false
80
81required:
82  - compatible
83  - reg
84
85additionalProperties: false
86
87examples:
88  - |
89    #include <dt-bindings/iio/temperature/thermocouple.h>
90    #include <dt-bindings/interrupt-controller/irq.h>
91    i2c {
92        #address-cells = <1>;
93        #size-cells = <0>;
94
95        temperature-sensor@60 {
96            compatible = "microchip,mcp9600";
97            reg = <0x60>;
98            interrupt-parent = <&gpio>;
99            interrupts = <25 IRQ_TYPE_EDGE_RISING>;
100            interrupt-names = "alert1";
101            thermocouple-type = <THERMOCOUPLE_TYPE_K>;
102            vdd-supply = <&vdd>;
103        };
104    };
105  - |
106    #include <dt-bindings/interrupt-controller/irq.h>
107    i2c {
108        #address-cells = <1>;
109        #size-cells = <0>;
110
111        temperature-sensor@62 {
112            compatible = "microchip,mcp9601", "microchip,mcp9600";
113            reg = <0x62>;
114            interrupt-parent = <&gpio>;
115            interrupts = <22 IRQ_TYPE_EDGE_RISING>, <23 IRQ_TYPE_EDGE_RISING>;
116            interrupt-names = "open-circuit", "short-circuit";
117            vdd-supply = <&vdd>;
118            microchip,vsense;
119        };
120    };
121