1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/hwmon/national,lm90.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: LM90 series thermometer
8
9 maintainers:
10 - Jean Delvare <jdelvare@suse.com>
11 - Guenter Roeck <linux@roeck-us.net>
12
13 properties:
14 compatible:
15 enum:
16 - adi,adm1032
17 - adi,adt7461
18 - adi,adt7461a
19 - adi,adt7481
20 - dallas,max6646
21 - dallas,max6647
22 - dallas,max6649
23 - dallas,max6657
24 - dallas,max6658
25 - dallas,max6659
26 - dallas,max6680
27 - dallas,max6681
28 - dallas,max6695
29 - dallas,max6696
30 - gmt,g781
31 - national,lm86
32 - national,lm89
33 - national,lm90
34 - national,lm99
35 - nxp,sa56004
36 - onnn,nct1008
37 - ti,tmp451
38 - ti,tmp461
39 - winbond,w83l771
40
41
42 interrupts:
43 items:
44 - description: |
45 Single interrupt specifier which describes the LM90 "-ALERT" pin
46 output.
47
48 reg:
49 maxItems: 1
50
51 "#thermal-sensor-cells":
52 const: 1
53
54 '#address-cells':
55 const: 1
56
57 '#size-cells':
58 const: 0
59
60 vcc-supply:
61 description: phandle to the regulator that provides the +VCC supply
62
63 ti,extended-range-enable:
64 description: Set to enable extended range temperature.
65 type: boolean
66
67 required:
68 - compatible
69 - reg
70
71 patternProperties:
72 "^channel@([0-2])$":
73 type: object
74 description: Represents channels of the device and their specific configuration.
75
76 properties:
77 reg:
78 description: The channel number. 0 is local channel, 1-2 are remote channels.
79 items:
80 minimum: 0
81 maximum: 2
82
83 label:
84 description: A descriptive name for this channel, like "ambient" or "psu".
85
86 temperature-offset-millicelsius:
87 description: Temperature offset to be added to or subtracted from remote temperature measurements.
88
89 required:
90 - reg
91
92 additionalProperties: false
93
94 allOf:
95 - if:
96 not:
97 properties:
98 compatible:
99 contains:
100 enum:
101 - adi,adt7461
102 - adi,adt7461a
103 - adi,adt7481
104 - ti,tmp451
105 - ti,tmp461
106 then:
107 properties:
108 ti,extended-range-enable: false
109
110 - if:
111 properties:
112 compatible:
113 contains:
114 enum:
115 - dallas,max6646
116 - dallas,max6647
117 - dallas,max6649
118 - dallas,max6657
119 - dallas,max6658
120 - dallas,max6659
121 - dallas,max6695
122 - dallas,max6696
123 then:
124 patternProperties:
125 "^channel@([0-2])$":
126 properties:
127 temperature-offset-millicelsius: false
128
129 - if:
130 properties:
131 compatible:
132 contains:
133 enum:
134 - adi,adt7461
135 - adi,adt7461a
136 - adi,adt7481
137 - onnn,nct1008
138 then:
139 patternProperties:
140 "^channel@([0-2])$":
141 properties:
142 temperature-offset-millicelsius:
143 maximum: 127750
144
145 - if:
146 properties:
147 compatible:
148 contains:
149 enum:
150 - adi,adm1032
151 - dallas,max6680
152 - dallas,max6681
153 - gmt,g781
154 - national,lm86
155 - national,lm89
156 - national,lm90
157 - national,lm99
158 - nxp,sa56004
159 - winbond,w83l771
160 then:
161 patternProperties:
162 "^channel@([0-2])$":
163 properties:
164 temperature-offset-millicelsius:
165 maximum: 127875
166
167 - if:
168 properties:
169 compatible:
170 contains:
171 enum:
172 - ti,tmp451
173 - ti,tmp461
174 then:
175 patternProperties:
176 "^channel@([0-2])$":
177 properties:
178 temperature-offset-millicelsius:
179 maximum: 127937
180
181 additionalProperties: false
182
183 examples:
184 - |
185 #include <dt-bindings/interrupt-controller/irq.h>
186
187 i2c {
188 #address-cells = <1>;
189 #size-cells = <0>;
190
191 sensor@4c {
192 compatible = "onnn,nct1008";
193 reg = <0x4c>;
194 vcc-supply = <&palmas_ldo6_reg>;
195 interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
196 #thermal-sensor-cells = <1>;
197 };
198 };
199 - |
200 i2c {
201 #address-cells = <1>;
202 #size-cells = <0>;
203
204 sensor@4c {
205 compatible = "adi,adt7481";
206 reg = <0x4c>;
207 #address-cells = <1>;
208 #size-cells = <0>;
209
210 channel@0 {
211 reg = <0x0>;
212 label = "local";
213 };
214
215 channel@1 {
216 reg = <0x1>;
217 label = "front";
218 temperature-offset-millicelsius = <4000>;
219 };
220
221 channel@2 {
222 reg = <0x2>;
223 label = "back";
224 temperature-offset-millicelsius = <750>;
225 };
226 };
227 };
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