Add device tree bindings documentation for Maxim max9611/max9612 current
sense amplifier.
Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
.../devicetree/bindings/iio/adc/max9611.txt | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/max9611.txt
diff --git a/Documentation/devicetree/bindings/iio/adc/max9611.txt b/Documentation/devicetree/bindings/iio/adc/max9611.txt
new file mode 100644
index 0000000..aaaeec0
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+++ b/Documentation/devicetree/bindings/iio/adc/max9611.txt
@@ -0,0 +1,27 @@
+* 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
+ - maxim,shunt-resistor-uohm: Resistor value, in uOhm, of the current sense
+ shunt resistor.
+
+Example:
+
+&i2c4 {
+ csa: max9611@7c {
+ compatible = "maxim,max9611";
+ reg = <0x7c>;
+
+ maxim,shunt-resistor-uohm = <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.
--
2.7.4
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