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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/contrib/device-tree/Bindings/iio/potentiostat/lmp91000.txt
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* Texas Instruments LMP91000 series of potentiostats

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LMP91000: https://www.ti.com/lit/ds/symlink/lmp91000.pdf

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LMP91002: https://www.ti.com/lit/ds/symlink/lmp91002.pdf

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Required properties:

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  - compatible: should be one of the following:

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                 "ti,lmp91000"

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                 "ti,lmp91002"

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  - reg: the I2C address of the device

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  - io-channels: the phandle of the iio provider

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  - ti,external-tia-resistor: if the property ti,tia-gain-ohm is not defined this

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    needs to be set to signal that an external resistor value is being used.

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Optional properties:

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  - ti,tia-gain-ohm: ohm value of the internal resistor for the transimpedance

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    amplifier. Must be 2750, 3500, 7000, 14000, 35000, 120000, or 350000 ohms.

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  - ti,rload-ohm: ohm value of the internal resistor load applied to the gas

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    sensor. Must be 10, 33, 50, or 100 (default) ohms.

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Example:

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lmp91000@48 {

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	compatible = "ti,lmp91000";

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	reg = <0x48>;

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	ti,tia-gain-ohm = <7500>;

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	ti,rload = <100>;

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	io-channels = <&adc>;

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};

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