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dt-bindings: hwmon: Add ina3221 documentation
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@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Nicolin Chen
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Guenter Roeck
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Oct 11, 2018
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Texas Instruments INA3221 Device Tree Bindings | ||
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1) ina3221 node | ||
Required properties: | ||
- compatible: Must be "ti,ina3221" | ||
- reg: I2C address | ||
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Optional properties: | ||
= The node contains optional child nodes for three channels = | ||
= Each child node describes the information of input source = | ||
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- #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. | ||
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2) child nodes | ||
Required properties: | ||
- reg: Must be 0, 1 or 2, corresponding to IN1, IN2 or IN3 port of INA3221 | ||
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Optional properties: | ||
- label: Name of the input source | ||
- shunt-resistor-micro-ohms: Shunt resistor value in micro-Ohm | ||
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Example: | ||
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ina3221@40 { | ||
compatible = "ti,ina3221"; | ||
reg = <0x40>; | ||
#address-cells = <1>; | ||
#size-cells = <0>; | ||
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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>; | ||
}; | ||
}; |