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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/potentiostat/ti,lmp91000.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments LMP91000 series of potentiostats with I2C control
+
+maintainers:
+ - Matt Ranostay <matt.ranostay@konsulko.com>
+
+description: |
+ Typically used as a signal conditioner for chemical sensors.
+ LMP91000: https://www.ti.com/lit/ds/symlink/lmp91000.pdf
+ LMP91002: https://www.ti.com/lit/ds/symlink/lmp91002.pdf
+
+properties:
+ compatible:
+ enum:
+ - ti,lmp91000
+ - ti,lmp91002
+
+ reg:
+ maxItems: 1
+
+ io-channels:
+ maxItems: 1
+
+ ti,external-tia-resistor:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ If the property ti,tia-gain-ohm is not defined this needs to be set to
+ signal that an external resistor value is being used.
+
+ ti,tia-gain-ohm:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [2750, 3500, 7000, 14000, 35000, 120000, 350000]
+ description:
+ Internal resistor for the transimpedance amplifier.
+
+ ti,rload-ohm:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [10, 33, 50, 100]
+ description:
+ Internal resistor load applied to the gas sensor.
+ Default 100 Ohms.
+
+required:
+ - compatible
+ - reg
+ - io-channels
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ lmp91000@48 {
+ compatible = "ti,lmp91000";
+ reg = <0x48>;
+ ti,tia-gain-ohm = <7000>;
+ ti,rload-ohm = <100>;
+ io-channels = <&adc>;
+ };
+ };
+...