Added a new file documenting the adt7475 devicetree and added the four new properties to it. Signed-off-by: Logan Shaw <logan.shaw@xxxxxxxxxxxxxxxxxxx> --- --- .../devicetree/bindings/hwmon/adt7475.yaml | 95 +++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/adt7475.yaml diff --git a/Documentation/devicetree/bindings/hwmon/adt7475.yaml b/Documentation/devicetree/bindings/hwmon/adt7475.yaml new file mode 100644 index 000000000000..450da5e66e07 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/adt7475.yaml @@ -0,0 +1,95 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/adt7475.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ADT7475 hwmon sensor + +maintainers: + - Jean Delvare <jdelvare@xxxxxxxx> + +description: | + The ADT7473, ADT7475, ADT7476, and ADT7490 are thermal monitors and multiple + PWN fan controllers. + + They support monitoring and controlling up to four fans (the ADT7490 can only + control up to three). They support reading a single on chip temperature + sensor and two off chip temperature sensors (the ADT7490 additionally + supports measuring up to three current external temperature sensors with + series resistance cancellation (SRC)). + + Datasheets: + https://www.onsemi.com/pub/Collateral/ADT7473-D.PDF + https://www.onsemi.com/pub/Collateral/ADT7475-D.PDF + https://www.onsemi.com/pub/Collateral/ADT7476-D.PDF + https://www.onsemi.com/pub/Collateral/ADT7490-D.PDF + + Description taken from omsemiconductors specification sheets, with minor + rephrasing. + +properties: + compatible: + enum: + - adi,adt7473 + - adi,adt7475 + - adi,adt7476 + - adi,adt7490 + + reg: + maxItems: 1 + + bypass-attenuator-in0: + description: | + Configures bypassing the individual voltage input + attenuator, on in0. This is supported on the ADT7476 and ADT7490. + If set to a non-zero integer the attenuator is bypassed, if set to + zero the attenuator is not bypassed. If the property is absent then + the config register is not modified. + maxItems: 1 + + bypass-attenuator-in1: + description: | + Configures bypassing the individual voltage input + attenuator, on in1. This is supported on the ADT7473, ADT7475, + ADT7476 and ADT7490. If set to a non-zero integer the attenuator + is bypassed, if set to zero the attenuator is not bypassed. If the + property is absent then the config register is not modified. + maxItems: 1 + + bypass-attenuator-in3: + description: | + Configures bypassing the individual voltage input + attenuator, on in3. This is supported on the ADT7476 and ADT7490. + If set to a non-zero integer the attenuator is bypassed, if set to + zero the attenuator is not bypassed. If the property is absent then + the config register is not modified. + maxItems: 1 + + bypass-attenuator-in4: + description: | + Configures bypassing the individual voltage input + attenuator, on in4. This is supported on the ADT7476 and ADT7490. + If set to a non-zero integer the attenuator is bypassed, if set to + zero the attenuator is not bypassed. If the property is absent then + the config register is not modified. + maxItems: 1 + +required: + - compatible + - reg + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + hwmon@2e { + compatible = "adi,adt7476"; + reg = <0x2e>; + bypass-attenuator-in0 = <1>; + bypass-attenuator-in1 = <0>; + }; + }; +... -- 2.25.0
