Texas Instruments INA3221 is a triple-channel shunt and bus voltage monitor. This patch adds a DT binding doc for it. Signed-off-by: Nicolin Chen <nicoleotsuka@xxxxxxxxx> --- Changelog v7->v9: * N/A v6->v7: * Restored three channel examples and merged them with the parent one v5->v6: * Removed status property as no need to explicitly list it. * Combined all examples into a complete one. v4->v5: * Replaced "input-id" with "reg" and added address-cells and size-cells * Replaced "input-label" with "label" * Replaced "shunt-resistor" with "shunt-resistor-micro-ohms" v3->v4: * Removed the attempt of putting labels in the node names * Added a new optional label property in the child node * Updated examples accordingly v2->v3: * Added a simple subject in the line 1 * Fixed the shunt resistor value in the example v1->v2: * Dropped channel name properties * Added child node definitions. * * Added shunt resistor property in the child node * * Added status property to indicate connection status * * Changed to use child node name as the label of input source .../devicetree/bindings/hwmon/ina3221.txt | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/ina3221.txt diff --git a/Documentation/devicetree/bindings/hwmon/ina3221.txt b/Documentation/devicetree/bindings/hwmon/ina3221.txt new file mode 100644 index 000000000000..a7b25caa2b8e --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/ina3221.txt @@ -0,0 +1,44 @@ +Texas Instruments INA3221 Device Tree Bindings + +1) ina3221 node + Required properties: + - compatible: Must be "ti,ina3221" + - reg: I2C address + + Optional properties: + = 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>; + }; +}; -- 2.17.1