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linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/adi,ltc2983.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices LTC2983 and similar Multi-sensor Temperature systems
maintainers:
- Nuno Sá <nuno.sa@analog.com>
description: |
Analog Devices Multi-Sensor Digital Temperature Measurement Systems:
- ADT7604
- LTC2983
- LTC2984
- LTC2986
- LTM2985
https://www.analog.com/media/en/technical-documentation/data-sheets/2983fc.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/2984fb.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/29861fa.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/ltm2985.pdf
$defs:
sensor-node:
type: object
description: Sensor node common constraints
properties:
reg:
description:
Channel number. Connects the sensor to the channel with this number
of the device.
minimum: 1
maximum: 20
adi,sensor-type:
description: Type of sensor connected to the device.
$ref: /schemas/types.yaml#/definitions/uint32
required:
- reg
- adi,sensor-type
properties:
compatible:
oneOf:
- enum:
- adi,adt7604
- adi,ltc2983
- adi,ltc2986
- adi,ltm2985
- items:
- const: adi,ltc2984
- const: adi,ltc2983
reg:
maxItems: 1
interrupts:
maxItems: 1
vdd-supply: true
adi,mux-delay-config-us:
description: |
Extra delay prior to each conversion, in addition to the internal 1ms
delay, for the multiplexer to switch input configurations and
excitation values.
This property is supposed to be in microseconds, but to maintain
compatibility, this value will be multiplied by 100 before usage.
maximum: 255
default: 0
adi,filter-notch-freq:
description:
Notch frequency of the digital filter.
0 - 50/60Hz rejection
1 - 60Hz rejection
2 - 50Hz rejection
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 2
default: 0
'#address-cells':
const: 1
'#size-cells':
const: 0
patternProperties:
'^thermocouple@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: Thermocouple sensor.
properties:
adi,sensor-type:
description: |
1 - Type J Thermocouple
2 - Type K Thermocouple
3 - Type E Thermocouple
4 - Type N Thermocouple
5 - Type R Thermocouple
6 - Type S Thermocouple
7 - Type T Thermocouple
8 - Type B Thermocouple
9 - Custom Thermocouple
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 1
maximum: 9
adi,single-ended:
description: Whether the sensor is single-ended.
type: boolean
adi,sensor-oc-current-microamp:
description: Pulsed current value applied during open-circuit detect.
enum: [10, 100, 500, 1000]
default: 10
adi,cold-junction-handle:
description:
Sensor responsible for measuring the thermocouple cold junction
temperature.
$ref: /schemas/types.yaml#/definitions/phandle
adi,custom-thermocouple:
description:
Used for digitizing custom thermocouples.
See Page 59 of the datasheet.
$ref: /schemas/types.yaml#/definitions/int64-matrix
minItems: 3
maxItems: 64
items:
items:
- description: Voltage point in nV, signed.
- description: Temperature point in uK.
allOf:
- if:
properties:
adi,sensor-type:
const: 9
then:
required:
- adi,custom-thermocouple
'^diode@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: Diode sensor.
properties:
adi,sensor-type:
description: Sensor type for diodes.
$ref: /schemas/types.yaml#/definitions/uint32
const: 28
adi,single-ended:
description: Whether the sensor is single-ended.
type: boolean
adi,three-conversion-cycles:
description:
Whether to use three conversion cycles to remove parasitic
resistance between the device and the diode.
type: boolean
adi,average-on:
description:
Whether to use a running average of the diode temperature
reading to reduce the noise when the diode is used as a cold
junction temperature element on an isothermal block where
temperatures change slowly.
type: boolean
adi,excitation-current-microamp:
description:
Magnitude of the 1l excitation current applied to the diode.
4l excitation current will be 4 times this value, and 8l
excitation current will be 8 times value.
enum: [10, 20, 40, 80]
default: 10
adi,ideal-factor-value:
description:
Diode ideality factor.
Set this property to 1000000 times the real value.
$ref: /schemas/types.yaml#/definitions/uint32
default: 0
'^rtd@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: RTD sensor.
properties:
reg:
minimum: 2
maximum: 20
adi,sensor-type:
description: |
10 - RTD PT-10
11 - RTD PT-50
12 - RTD PT-100
13 - RTD PT-200
14 - RTD PT-500
15 - RTD PT-1000
16 - RTD PT-1000 (0.00375)
17 - RTD NI-120
18 - RTD Custom
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 10
maximum: 18
adi,rsense-handle:
description: Associated sense resistor sensor.
$ref: /schemas/types.yaml#/definitions/phandle
adi,number-of-wires:
description:
Number of wires used by the RTD.
5 means 4 wires with Kelvin sense resistor.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [2, 3, 4, 5]
default: 2
adi,rsense-share:
description:
Whether to enable sense resistor sharing, where one sense
resistor is used by multiple sensors.
type: boolean
adi,excitation-current-microamp:
description: Excitation current applied to the RTD.
enum: [5, 10, 25, 50, 100, 250, 500, 1000]
default: 5
adi,rtd-curve:
description: |
RTD curve and the corresponding Callendar-VanDusen constants.
0 - European
1 - American
2 - Japanese
3 - ITS-90
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 3
default: 0
adi,custom-rtd:
description:
Used for digitizing custom RTDs.
See Page 62 of the datasheet.
$ref: /schemas/types.yaml#/definitions/uint64-matrix
minItems: 3
maxItems: 64
items:
items:
- description: Resistance point in uOhms.
- description: Temperature point in uK.
required:
- adi,rsense-handle
allOf:
- if:
properties:
adi,number-of-wires:
const: 4
then:
properties:
adi,current-rotate:
description:
Whether to enable excitation current rotation to automatically
remove parasitic thermocouple effects.
type: boolean
dependencies:
adi,current-rotate: [ 'adi,rsense-share' ]
- if:
properties:
adi,sensor-type:
const: 18
then:
required:
- adi,custom-rtd
'^thermistor@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: Thermistor sensor.
properties:
adi,sensor-type:
description:
19 - Thermistor 44004/44033 2.252kohm at 25°C
20 - Thermistor 44005/44030 3kohm at 25°C
21 - Thermistor 44007/44034 5kohm at 25°C
22 - Thermistor 44006/44031 10kohm at 25°C
23 - Thermistor 44008/44032 30kohm at 25°C
24 - Thermistor YSI 400 2.252kohm at 25°C
25 - Thermistor Spectrum 1003k 1kohm
26 - Thermistor Custom Steinhart-Hart
27 - Custom Thermistor
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 19
maximum: 27
adi,rsense-handle:
description: Associated sense resistor sensor.
$ref: /schemas/types.yaml#/definitions/phandle
adi,single-ended:
description: Whether the sensor is single-ended.
type: boolean
adi,rsense-share:
description:
Whether to enable sense resistor sharing, where one sense
resistor is used by multiple sensors.
type: boolean
adi,current-rotate:
description:
Whether to enable excitation current rotation to automatically
remove parasitic thermocouple effects.
type: boolean
adi,excitation-current-nanoamp:
description:
Excitation current applied to the thermistor.
0 sets the sensor in auto-range mode.
enum: [0, 250, 500, 1000, 5000, 10000, 25000, 50000, 100000, 250000,
500000, 1000000]
default: 0
adi,custom-thermistor:
description:
Used for digitizing custom thermistors.
See Page 65 of the datasheet.
$ref: /schemas/types.yaml#/definitions/uint64-matrix
minItems: 3
maxItems: 64
items:
items:
- description: Resistance point in uOhms.
- description: Temperature point in uK.
adi,custom-steinhart:
description:
Steinhart-Hart coefficients in raw format, used for digitizing
custom thermistors.
See Page 68 of the datasheet.
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 6
maxItems: 6
required:
- adi,rsense-handle
dependencies:
adi,current-rotate: [ 'adi,rsense-share' ]
allOf:
- if:
properties:
adi,sensor-type:
const: 26
then:
properties:
adi,excitation-current-nanoamp:
enum: [250, 500, 1000, 5000, 10000, 25000, 50000, 100000,
250000, 500000, 1000000]
default: 1000
required:
- adi,custom-steinhart
- if:
properties:
adi,sensor-type:
const: 27
then:
properties:
adi,excitation-current-nanoamp:
enum: [250, 500, 1000, 5000, 10000, 25000, 50000, 100000,
250000, 500000, 1000000]
default: 1000
required:
- adi,custom-thermistor
'^adc@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: Direct ADC sensor.
properties:
adi,sensor-type:
description: Sensor type for direct ADC sensors.
$ref: /schemas/types.yaml#/definitions/uint32
const: 30
adi,single-ended:
description: Whether the sensor is single-ended.
type: boolean
'^temp@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: Active analog temperature sensor.
properties:
adi,sensor-type:
description: Sensor type for active analog temperature sensors.
$ref: /schemas/types.yaml#/definitions/uint32
const: 31
adi,single-ended:
description: Whether the sensor is single-ended.
type: boolean
adi,custom-temp:
description:
Used for digitizing active analog temperature sensors.
See Page 67 of the LTM2985 datasheet.
$ref: /schemas/types.yaml#/definitions/uint64-matrix
minItems: 3
maxItems: 64
items:
items:
- description: Voltage point in nV, signed.
- description: Temperature point in uK.
required:
- adi,custom-temp
'^copper-trace@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: |
Copper trace resistance sensor (some parts only). Two variants exist:
sub-ohm (< 1 ohm, no custom table allowed) and standard (> 1 ohm,
required custom table).
properties:
reg:
minimum: 2
maximum: 20
adi,sensor-type:
description: Sensor type for copper trace sensors.
$ref: /schemas/types.yaml#/definitions/uint32
const: 32
adi,rsense-handle:
description: Associated sense resistor sensor.
$ref: /schemas/types.yaml#/definitions/phandle
adi,copper-trace-sub-ohm:
description:
Select the sub-ohm (< 1 ohm) copper trace variant. Custom table
and excitation current are not allowed in this mode.
type: boolean
adi,excitation-current-microamp:
description:
Excitation current applied to the copper trace. Not used in
sub-ohm mode. The datasheet recommends 1mA for copper trace
sensors due to their typically small resistance.
enum: [5, 10, 25, 50, 100, 250, 500, 1000]
default: 1000
adi,custom-copper-trace:
description:
Resistance-to-temperature table for copper trace sensors with
resistance > 1 ohm. Required when adi,copper-trace-sub-ohm is not
set. See Page 36 of the datasheet.
$ref: /schemas/types.yaml#/definitions/uint64-matrix
minItems: 3
maxItems: 64
items:
items:
- description: Resistance point in uOhms.
- description: Temperature point in uK.
required:
- adi,rsense-handle
allOf:
- if:
required:
- adi,copper-trace-sub-ohm
then:
properties:
adi,custom-copper-trace: false
adi,excitation-current-microamp: false
- if:
not:
required:
- adi,copper-trace-sub-ohm
then:
required:
- adi,custom-copper-trace
'^leak-detector@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: |
Leak detector sensor (some parts only). Outputs resistance in ohms and
a coverage percentage via IIO_COVERAGE (raw/1024 = coverage %).
properties:
reg:
minimum: 2
maximum: 20
adi,sensor-type:
description: Sensor type for leak detector sensors.
$ref: /schemas/types.yaml#/definitions/uint32
const: 33
adi,rsense-handle:
description: Associated sense resistor sensor.
$ref: /schemas/types.yaml#/definitions/phandle
adi,excitation-current-nanoamp:
description:
Excitation current applied to the leak detector. The correct value
depends on the electrical characteristics of the liquid being sensed.
For example, 10000 (10µA) is recommended for PG25 (see datasheet
Table 39).
enum: [250, 500, 1000, 5000, 10000, 25000, 50000, 100000, 250000,
500000, 1000000]
adi,custom-leak-detector:
description: |
Lookup table mapping resistance to coverage percentage. Entries must
be in ascending resistance order.
$ref: /schemas/types.yaml#/definitions/uint64-matrix
minItems: 3
maxItems: 64
items:
items:
- description: Resistance point in uOhms.
- description: Coverage data percentage (0 to 100).
required:
- adi,rsense-handle
- adi,excitation-current-nanoamp
- adi,custom-leak-detector
'^rsense@':
$ref: '#/$defs/sensor-node'
unevaluatedProperties: false
description: Sense resistor sensor.
properties:
reg:
minimum: 2
maximum: 20
adi,sensor-type:
description: Sensor type sense resistor sensors.
$ref: /schemas/types.yaml#/definitions/uint32
const: 29
adi,rsense-val-milli-ohms:
description: Value of the sense resistor.
required:
- adi,rsense-val-milli-ohms
required:
- compatible
- reg
- interrupts
- vdd-supply
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
enum:
- adi,ltc2983
- adi,ltc2984
then:
patternProperties:
'^temp@': false
- if:
properties:
compatible:
contains:
const: adi,adt7604
then:
patternProperties:
'^thermocouple@': false
'^diode@': false
'^adc@': false
'^temp@': false
'^rtd@':
properties:
adi,sensor-type:
not:
const: 18
'^thermistor@':
properties:
adi,sensor-type:
not:
const: 27
else:
patternProperties:
'^copper-trace@': false
'^leak-detector@': false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
temperature-sensor@0 {
compatible = "adi,ltc2983";
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
vdd-supply = <&supply>;
interrupts = <20 IRQ_TYPE_EDGE_RISING>;
interrupt-parent = <&gpio>;
thermocouple@18 {
reg = <18>;
adi,sensor-type = <8>; //Type B
adi,sensor-oc-current-microamp = <10>;
adi,cold-junction-handle = <&diode5>;
};
diode5: diode@5 {
reg = <5>;
adi,sensor-type = <28>;
};
rsense2: rsense@2 {
reg = <2>;
adi,sensor-type = <29>;
adi,rsense-val-milli-ohms = <1200000>; //1.2Kohms
};
rtd@14 {
reg = <14>;
adi,sensor-type = <15>; //PT1000
/*2-wire, internal gnd, no current rotation*/
adi,number-of-wires = <2>;
adi,rsense-share;
adi,excitation-current-microamp = <500>;
adi,rsense-handle = <&rsense2>;
};
adc@10 {
reg = <10>;
adi,sensor-type = <30>;
adi,single-ended;
};
thermistor@12 {
reg = <12>;
adi,sensor-type = <26>; //Steinhart
adi,rsense-handle = <&rsense2>;
adi,custom-steinhart = <0x00f371ec 0x12345678
0x2c0f8733 0x10018c66 0xa0feaccd
0x90021d99>; //6 entries
};
thermocouple@20 {
reg = <20>;
adi,sensor-type = <9>; //custom thermocouple
adi,single-ended;
adi,custom-thermocouple =
/bits/ 64 <(-50220000) 0>,
/bits/ 64 <(-30200000) 99100000>,
/bits/ 64 <(-5300000) 135400000>,
/bits/ 64 <0 273150000>,
/bits/ 64 <40200000 361200000>,
/bits/ 64 <55300000 522100000>,
/bits/ 64 <88300000 720300000>,
/bits/ 64 <132200000 811200000>,
/bits/ 64 <188700000 922500000>,
/bits/ 64 <460400000 1000000000>; //10 pairs
};
};
};
- |
#include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
temperature-sensor@0 {
compatible = "adi,adt7604";
reg = <0>;
interrupt-parent = <&gpio>;
interrupts = <25 IRQ_TYPE_EDGE_RISING>;
#address-cells = <1>;
#size-cells = <0>;
vdd-supply = <&supply>;
trace_rsense: rsense@2 {
reg = <2>;
adi,sensor-type = <29>;
adi,rsense-val-milli-ohms = <100000>; // 100 ohm
};
copper-trace@4 {
reg = <4>;
adi,sensor-type = <32>;
adi,rsense-handle = <&trace_rsense>;
adi,copper-trace-sub-ohm;
};
r_sense: rsense@12 {
reg = <12>;
adi,sensor-type = <29>;
adi,rsense-val-milli-ohms = <1000000>; // 1 kohm
};
leak-detector@14 {
reg = <14>;
adi,sensor-type = <33>;
adi,rsense-handle = <&r_sense>;
adi,excitation-current-nanoamp = <10000>;
adi,custom-leak-detector =
/bits/ 64 < 0 100>,
/bits/ 64 < 202020000 99>,
/bits/ 64 < 285710000 70>,
/bits/ 64 < 333330000 60>,
/bits/ 64 < 400000000 50>,
/bits/ 64 < 500000000 40>,
/bits/ 64 < 666670000 30>,
/bits/ 64 < 1000000000 20>,
/bits/ 64 < 2000000000 10>,
/bits/ 64 <1000000000000 0>;
};
rtd@18 {
reg = <18>;
adi,sensor-type = <12>; // PT100
adi,rsense-handle = <&r_sense>;
adi,number-of-wires = <2>;
adi,rsense-share;
adi,excitation-current-microamp = <500>;
adi,rtd-curve = <0>;
};
};
};
...
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/maxim,max31855k.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/maxim,max31855k.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim MAX31855 and similar thermocouples
maintainers:
- Matt Ranostay <matt.ranostay@konsulko.com>
description: |
https://datasheets.maximintegrated.com/en/ds/MAX6675.pdf
https://datasheets.maximintegrated.com/en/ds/MAX31855.pdf
properties:
compatible:
description:
The generic maxim,max31855 compatible is deprecated in favour of
the thermocouple type specific variants.
enum:
- maxim,max6675
- maxim,max31855
- maxim,max31855k
- maxim,max31855j
- maxim,max31855n
- maxim,max31855s
- maxim,max31855t
- maxim,max31855e
- maxim,max31855r
reg:
maxItems: 1
spi-cpha: true
required:
- compatible
- reg
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
contains:
enum:
- maxim,max6675
then:
required:
- spi-cpha
else:
properties:
spi-cpha: false
unevaluatedProperties: false
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
temp-sensor@0 {
compatible = "maxim,max31855k";
reg = <0>;
spi-max-frequency = <4300000>;
};
temp-sensor@1 {
compatible = "maxim,max6675";
reg = <1>;
spi-max-frequency = <4300000>;
spi-cpha;
};
};
...
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/maxim,max31856.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/maxim,max31856.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim MAX31856 thermocouple support
maintainers:
- Jonathan Cameron <jic23@kernel.org>
description: |
https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf
properties:
compatible:
const: maxim,max31856
reg:
maxItems: 1
spi-cpha: true
thermocouple-type:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Type of thermocouple (THERMOCOUPLE_TYPE_K if omitted).
Use defines in dt-bindings/iio/temperature/thermocouple.h.
Supported types are B, E, J, K, N, R, S, T.
required:
- compatible
- reg
- spi-cpha
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/iio/temperature/thermocouple.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
temp-sensor@0 {
compatible = "maxim,max31856";
reg = <0>;
spi-max-frequency = <5000000>;
spi-cpha;
thermocouple-type = <THERMOCOUPLE_TYPE_K>;
};
};
...
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/maxim,max31865.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/maxim,max31865.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim MAX31865 Resistance Temperature Detector.
maintainers:
- Navin Sankar Velliangiri <navin@linumiz.com>
description: |
https://datasheets.maximintegrated.com/en/ds/MAX31865.pdf
properties:
compatible:
const: maxim,max31865
reg:
maxItems: 1
maxim,3-wire:
description:
Identifies the number of wires used by the RTD. Setting this property
enables 3-wire RTD connection. Else 2-wire or 4-wire RTD connection.
type: boolean
spi-cpha: true
required:
- compatible
- reg
- spi-cpha
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
unevaluatedProperties: false
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
temperature-sensor@0 {
compatible = "maxim,max31865";
reg = <0>;
spi-max-frequency = <400000>;
spi-cpha;
maxim,3-wire;
};
};
...
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90614.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/melexis,mlx90614.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Melexis MLX90614/MLX90615 contactless IR temperature sensor
maintainers:
- Peter Meerwald <pmeerw@pmeerw.net>
- Crt Mori <cmo@melexis.com>
description: |
http://melexis.com/Infrared-Thermometer-Sensors/Infrared-Thermometer-Sensors/MLX90614-615.aspx
properties:
compatible:
enum:
- melexis,mlx90614
- melexis,mlx90615
reg:
maxItems: 1
wakeup-gpios:
description:
GPIO connected to the SDA line to hold low in order to wake up the
device. In normal operation, the GPIO is set as input and will
not interfere in I2C communication. There is no need for a GPIO
driving the SCL line. If no GPIO is given, power management is disabled.
maxItems: 1
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
temp-sensor@5a {
compatible = "melexis,mlx90614";
reg = <0x5a>;
wakeup-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
};
};
...
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90632.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/melexis,mlx90632.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Melexis MLX90632 and MLX90635 contactless Infra Red temperature sensor
maintainers:
- Crt Mori <cmo@melexis.com>
description: |
https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90632
There are various applications for the Infra Red contactless temperature
sensor and MLX90632 is most suitable for consumer applications where
measured object temperature is in range between -20 to 200 degrees
Celsius with relative error of measurement below 1 degree Celsius in
object temperature range for industrial applications. Since it can
operate and measure ambient temperature in range of -20 to 85 degrees
Celsius it is suitable also for outdoor use.
Be aware that electronics surrounding the sensor can increase ambient
temperature. MLX90632 can be calibrated to reduce the housing effect via
already existing EEPROM parameters.
Since measured object emissivity effects Infra Red energy emitted,
emissivity should be set before requesting the object temperature.
https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90635
MLX90635 is most suitable for consumer applications where
measured object temperature is in range between -20 to 100 degrees
Celsius with relative error of measurement 2 degree Celsius in
object temperature range for industrial applications, while just 0.2
degree Celsius for human body measurement applications. Since it can
operate and measure ambient temperature in range of -20 to 85 degrees
Celsius it is suitable also for outdoor use.
Since measured object emissivity effects Infra Red energy emitted,
emissivity should be set before requesting the object temperature.
properties:
compatible:
enum:
- melexis,mlx90632
- melexis,mlx90635
reg:
maxItems: 1
description: Default is 0x3a, but can be reprogrammed.
vdd-supply:
description: provide VDD power to the sensor.
required:
- compatible
- reg
additionalProperties: false
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
temp-sensor@3a {
compatible = "melexis,mlx90632";
reg = <0x3a>;
vdd-supply = <&ldo4_reg>;
};
};
...
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/microchip,mcp9600.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Microchip MCP9600 and similar thermocouple EMF converters
maintainers:
- Andrew Hepp <andrew.hepp@ahepp.dev>
description:
https://ww1.microchip.com/downloads/en/DeviceDoc/MCP960X-Data-Sheet-20005426.pdf
properties:
compatible:
oneOf:
- const: microchip,mcp9600
- items:
- const: microchip,mcp9601
- const: microchip,mcp9600
reg:
maxItems: 1
interrupts:
minItems: 1
maxItems: 6
interrupt-names:
minItems: 1
maxItems: 6
items:
enum:
- open-circuit
- short-circuit
- alert1
- alert2
- alert3
- alert4
thermocouple-type:
$ref: /schemas/types.yaml#/definitions/uint32
default: 3
description:
Type of thermocouple (THERMOCOUPLE_TYPE_K if omitted).
Use defines in dt-bindings/iio/temperature/thermocouple.h.
Supported types are B, E, J, K, N, R, S, T.
microchip,vsense:
type: boolean
description:
This flag indicates that the chip has been wired with VSENSE to
enable open and short circuit detect.
vdd-supply: true
allOf:
- if:
properties:
compatible:
not:
contains:
const: microchip,mcp9601
then:
properties:
interrupts:
minItems: 1
maxItems: 4
interrupt-names:
minItems: 1
maxItems: 4
items:
enum:
- alert1
- alert2
- alert3
- alert4
microchip,vsense: false
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/iio/temperature/thermocouple.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
temperature-sensor@60 {
compatible = "microchip,mcp9600";
reg = <0x60>;
interrupt-parent = <&gpio>;
interrupts = <25 IRQ_TYPE_EDGE_RISING>;
interrupt-names = "alert1";
thermocouple-type = <THERMOCOUPLE_TYPE_K>;
vdd-supply = <&vdd>;
};
};
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
temperature-sensor@62 {
compatible = "microchip,mcp9601", "microchip,mcp9600";
reg = <0x62>;
interrupt-parent = <&gpio>;
interrupts = <22 IRQ_TYPE_EDGE_RISING>, <23 IRQ_TYPE_EDGE_RISING>;
interrupt-names = "open-circuit", "short-circuit";
vdd-supply = <&vdd>;
microchip,vsense;
};
};
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/ti,tmp006.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/ti,tmp006.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI TMP006 IR thermopile sensor
maintainers:
- Peter Meerwald <pmeerw@pmeerw.net>
description: |
TI TMP006 - Infrared Thermopile Sensor in Chip-Scale Package.
https://cdn.sparkfun.com/datasheets/Sensors/Temp/tmp006.pdf
properties:
compatible:
const: ti,tmp006
reg:
maxItems: 1
vdd-supply:
description: provide VDD power to the sensor.
interrupts:
maxItems: 1
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
temperature-sensor@40 {
compatible = "ti,tmp006";
reg = <0x40>;
vdd-supply = <&ldo4_reg>;
interrupt-parent = <&gpio1>;
interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
};
};
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/ti,tmp007.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/ti,tmp007.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: IR thermopile sensor with integrated math engine
maintainers:
- Manivannan Sadhasivam <manivannanece23@gmail.com>
description: |
http://www.ti.com/lit/ds/symlink/tmp007.pdf
properties:
compatible:
const: ti,tmp007
reg:
description: |
The I2C address of the sensor (changeable via ADR pins)
------------------------------
|ADR1 | ADR0 | Device Address|
------------------------------
0 0 0x40
0 1 0x41
0 SDA 0x42
0 SCL 0x43
1 0 0x44
1 1 0x45
1 SDA 0x46
1 SCL 0x47
maxItems: 1
interrupts:
maxItems: 1
required:
- compatible
- reg
additionalProperties: false
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
temp-sensor@40 {
compatible = "ti,tmp007";
reg = <0x40>;
interrupt-parent = <&gpio0>;
interrupts = <5 0x08>;
};
};
...
linux-7.2.3/Documentation/devicetree/bindings/iio/temperature/ti,tmp117.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/ti,tmp117.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI TMP117 - Digital temperature sensor with integrated NV memory
description: |
TI TMP116/117 - Digital temperature sensor with integrated NV memory that
supports I2C interface.
https://www.ti.com/lit/gpn/tmp116
https://www.ti.com/lit/gpn/tmp117
maintainers:
- Puranjay Mohan <puranjay12@gmail.com>
properties:
compatible:
enum:
- ti,tmp116
- ti,tmp117
reg:
maxItems: 1
vcc-supply:
description: provide VCC power to the sensor.
label:
description: Unique name to identify which device this is.
required:
- compatible
- reg
- vcc-supply
additionalProperties: false
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
tmp117@48 {
compatible = "ti,tmp117";
reg = <0x48>;
vcc-supply = <&pmic_reg_3v3>;
};
};