0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/hwmon/ti,tmp421.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: TMP42x/TMP44x temperature sensor
0008
0009 maintainers:
0010 - Guenter Roeck <linux@roeck-us.net>
0011
0012 description: |
0013 ±1°C Remote and Local temperature sensor
0014 https://www.ti.com/lit/ds/symlink/tmp422.pdf
0015
0016 properties:
0017 compatible:
0018 enum:
0019 - ti,tmp421
0020 - ti,tmp422
0021 - ti,tmp423
0022 - ti,tmp441
0023 - ti,tmp442
0024 reg:
0025 maxItems: 1
0026
0027 '#address-cells':
0028 const: 1
0029
0030 '#size-cells':
0031 const: 0
0032
0033 required:
0034 - compatible
0035 - reg
0036
0037 additionalProperties: false
0038
0039 patternProperties:
0040 "^channel@([0-3])$":
0041 type: object
0042 description: |
0043 Represents channels of the device and their specific configuration.
0044
0045 properties:
0046 reg:
0047 description: |
0048 The channel number. 0 is local channel, 1-3 are remote channels
0049 items:
0050 minimum: 0
0051 maximum: 3
0052
0053 label:
0054 description: |
0055 A descriptive name for this channel, like "ambient" or "psu".
0056
0057 ti,n-factor:
0058 description: |
0059 The value (two's complement) to be programmed in the channel specific N correction register.
0060 For remote channels only.
0061 $ref: /schemas/types.yaml#/definitions/int32
0062 minimum: -128
0063 maximum: 127
0064
0065 required:
0066 - reg
0067
0068 additionalProperties: false
0069
0070 examples:
0071 - |
0072 i2c {
0073 #address-cells = <1>;
0074 #size-cells = <0>;
0075
0076 sensor@4c {
0077 compatible = "ti,tmp422";
0078 reg = <0x4c>;
0079 };
0080 };
0081 - |
0082 i2c {
0083 #address-cells = <1>;
0084 #size-cells = <0>;
0085
0086 sensor@4c {
0087 compatible = "ti,tmp422";
0088 reg = <0x4c>;
0089 #address-cells = <1>;
0090 #size-cells = <0>;
0091
0092 channel@0 {
0093 reg = <0x0>;
0094 ti,n-factor = <0x1>;
0095 label = "local";
0096 };
0097
0098 channel@1 {
0099 reg = <0x1>;
0100 ti,n-factor = <0x0>;
0101 label = "somelabel";
0102 };
0103
0104 channel@2 {
0105 reg = <0x2>;
0106 status = "disabled";
0107 };
0108 };
0109 };
