1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/hwmon/ti,tmp421.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: TMP42x/TMP44x temperature sensor
8
9 maintainers:
10 - Guenter Roeck <linux@roeck-us.net>
11
12 description: |
13 ±1°C Remote and Local temperature sensor
14 https://www.ti.com/lit/ds/symlink/tmp422.pdf
15
16 properties:
17 compatible:
18 enum:
19 - ti,tmp421
20 - ti,tmp422
21 - ti,tmp423
22 - ti,tmp441
23 - ti,tmp442
24 reg:
25 maxItems: 1
26
27 '#address-cells':
28 const: 1
29
30 '#size-cells':
31 const: 0
32
33 required:
34 - compatible
35 - reg
36
37 additionalProperties: false
38
39 patternProperties:
40 "^channel@([0-3])$":
41 type: object
42 description: |
43 Represents channels of the device and their specific configuration.
44
45 properties:
46 reg:
47 description: |
48 The channel number. 0 is local channel, 1-3 are remote channels
49 items:
50 minimum: 0
51 maximum: 3
52
53 label:
54 description: |
55 A descriptive name for this channel, like "ambient" or "psu".
56
57 ti,n-factor:
58 description: |
59 The value (two's complement) to be programmed in the channel specific N correction register.
60 For remote channels only.
61 $ref: /schemas/types.yaml#/definitions/int32
62 minimum: -128
63 maximum: 127
64
65 required:
66 - reg
67
68 additionalProperties: false
69
70 examples:
71 - |
72 i2c {
73 #address-cells = <1>;
74 #size-cells = <0>;
75
76 sensor@4c {
77 compatible = "ti,tmp422";
78 reg = <0x4c>;
79 };
80 };
81 - |
82 i2c {
83 #address-cells = <1>;
84 #size-cells = <0>;
85
86 sensor@4c {
87 compatible = "ti,tmp422";
88 reg = <0x4c>;
89 #address-cells = <1>;
90 #size-cells = <0>;
91
92 channel@0 {
93 reg = <0x0>;
94 ti,n-factor = <0x1>;
95 label = "local";
96 };
97
98 channel@1 {
99 reg = <0x1>;
100 ti,n-factor = <0x0>;
101 label = "somelabel";
102 };
103
104 channel@2 {
105 reg = <0x2>;
106 status = "disabled";
107 };
108 };
109 };
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