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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
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parentInitial commit. (diff)
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Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+* Texas Instruments LMP91000 series of potentiostats
+
+LMP91000: http://www.ti.com/lit/ds/symlink/lmp91000.pdf
+LMP91002: http://www.ti.com/lit/ds/symlink/lmp91002.pdf
+
+Required properties:
+
+ - compatible: should be one of the following:
+ "ti,lmp91000"
+ "ti,lmp91002"
+ - reg: the I2C address of the device
+ - io-channels: the phandle of the iio provider
+
+ - ti,external-tia-resistor: 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.
+
+Optional properties:
+
+ - ti,tia-gain-ohm: ohm value of the internal resistor for the transimpedance
+ amplifier. Must be 2750, 3500, 7000, 14000, 35000, 120000, or 350000 ohms.
+
+ - ti,rload-ohm: ohm value of the internal resistor load applied to the gas
+ sensor. Must be 10, 33, 50, or 100 (default) ohms.
+
+Example:
+
+lmp91000@48 {
+ compatible = "ti,lmp91000";
+ reg = <0x48>;
+ ti,tia-gain-ohm = <7500>;
+ ti,rload = <100>;
+ io-channels = <&adc>;
+};