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Diffstat (limited to 'Documentation/devicetree/bindings/hwmon/ina3221.txt')
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diff --git a/Documentation/devicetree/bindings/hwmon/ina3221.txt b/Documentation/devicetree/bindings/hwmon/ina3221.txt new file mode 100644 index 0000000000..fa63b61714 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/ina3221.txt @@ -0,0 +1,54 @@ +Texas Instruments INA3221 Device Tree Bindings + +1) ina3221 node + Required properties: + - compatible: Must be "ti,ina3221" + - reg: I2C address + + Optional properties: + - ti,single-shot: This chip has two power modes: single-shot (chip takes one + measurement and then shuts itself down) and continuous ( + chip takes continuous measurements). The continuous mode is + more reliable and suitable for hardware monitor type device, + but the single-shot mode is more power-friendly and useful + for battery-powered device which cares power consumptions + while still needs some measurements occasionally. + If this property is present, the single-shot mode will be + used, instead of the default continuous one for monitoring. + + = The node contains optional child nodes for three channels = + = Each child node describes the information of input source = + + - #address-cells: Required only if a child node is present. Must be 1. + - #size-cells: Required only if a child node is present. Must be 0. + +2) child nodes + Required properties: + - reg: Must be 0, 1 or 2, corresponding to IN1, IN2 or IN3 port of INA3221 + + Optional properties: + - label: Name of the input source + - shunt-resistor-micro-ohms: Shunt resistor value in micro-Ohm + +Example: + +ina3221@40 { + compatible = "ti,ina3221"; + reg = <0x40>; + #address-cells = <1>; + #size-cells = <0>; + + input@0 { + reg = <0x0>; + status = "disabled"; + }; + input@1 { + reg = <0x1>; + shunt-resistor-micro-ohms = <5000>; + }; + input@2 { + reg = <0x2>; + label = "VDD_5V"; + shunt-resistor-micro-ohms = <5000>; + }; +}; |