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dt-bindings: iio: adc: Add max9611 ADC

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Add device tree bindings documentation for Maxim max9611/max9612 current
sense amplifier.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Jacopo Mondi 2017-04-06 16:20:51 +02:00 committed by Jonathan Cameron
parent c94f5806cd
commit 2a70d55029
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Documentation/devicetree/bindings/iio/adc/max9611.txt Normal file
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* Maxim max9611/max9612 current sense amplifier with 12-bits ADC interface
Maxim max9611/max9612 is an high-side current sense amplifier with integrated
12-bits ADC communicating over I2c bus.
The device node for this driver shall be a child of a I2c controller.
Required properties
- compatible: Should be "maxim,max9611" or "maxim,max9612"
- reg: The 7-bits long I2c address of the device
- shunt-resistor-micro-ohms: Value, in micro Ohms, of the current sense shunt
resistor
Example:
&i2c4 {
csa: adc@7c {
compatible = "maxim,max9611";
reg = <0x7c>;
shunt-resistor-micro-ohms = <5000>;
};
};
This device node describes a current sense amplifier sitting on I2c4 bus
with address 0x7c (read address is 0xf9, write address is 0xf8).
A sense resistor of 0,005 Ohm is installed between RS+ and RS- current-sensing
inputs.