1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4
5$id: http://devicetree.org/schemas/hwmon/ti,tmp513.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: TMP513/512 system monitor sensor
9
10maintainers:
11  - Eric Tremblay <etremblay@distech-controls.com>
12
13description: |
14  The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors
15  that include remote sensors, a local temperature sensor, and a high-side
16  current shunt monitor. These system monitors have the capability of measuring
17  remote temperatures, on-chip temperatures, and system voltage/power/current
18  consumption.
19
20  Datasheets:
21  http://www.ti.com/lit/gpn/tmp513
22  http://www.ti.com/lit/gpn/tmp512
23
24
25properties:
26  compatible:
27    enum:
28      - ti,tmp512
29      - ti,tmp513
30
31  reg:
32    maxItems: 1
33
34  shunt-resistor-micro-ohms:
35    description: |
36      If 0, the calibration process will be skiped and the current and power
37      measurement engine will not work. Temperature and voltage measurement
38      will continue to work. The shunt value also need to respect:
39      rshunt <= pga-gain * 40 * 1000 * 1000.
40      If not, it's not possible to compute a valid calibration value.
41    default: 1000
42
43  ti,pga-gain:
44    description: |
45      The gain value for the PGA function. This is 8, 4, 2 or 1.
46      The PGA gain affect the shunt voltage range.
47      The range will be equal to: pga-gain * 40mV
48    allOf:
49      - $ref: /schemas/types.yaml#/definitions/uint32
50    enum: [1, 2, 4, 8]
51    default: 8
52
53  ti,bus-range-microvolt:
54    description: |
55      This is the operating range of the bus voltage in microvolt
56    allOf:
57      - $ref: /schemas/types.yaml#/definitions/uint32
58    enum: [16000000, 32000000]
59    default: 32000000
60
61  ti,nfactor:
62    description: |
63      Array of three(TMP513) or two(TMP512) n-Factor value for each remote
64      temperature channel.
65      See datasheet Table 11 for n-Factor range list and value interpretation.
66    allOf:
67      - $ref: /schemas/types.yaml#definitions/uint32-array
68      - minItems: 2
69        maxItems: 3
70        items:
71          default: 0x00
72          minimum: 0x00
73          maximum: 0xFF
74
75required:
76  - compatible
77  - reg
78
79additionalProperties: false
80
81examples:
82  - |
83    i2c {
84          #address-cells = <1>;
85          #size-cells = <0>;
86
87          tmp513@5c {
88              compatible = "ti,tmp513";
89              reg = <0x5C>;
90              shunt-resistor-micro-ohms = <330000>;
91              ti,bus-range-microvolt = <32000000>;
92              ti,pga-gain = <8>;
93              ti,nfactor = <0x1 0xF3 0x00>;
94          };
95    };
96