Re: [PATCH v3 1/4] Documentation: dt-bindings: iio: Add max9611 ADC
From: Jonathan Cameron <hidden>
Date: 2017-03-25 15:27:44
Also in:
linux-iio, linux-renesas-soc
On 24/03/17 15:28, Jacopo Mondi wrote:
Add device tree bindings documentation for Maxim max9611/max9612 current sense amplifier. Signed-off-by: Jacopo Mondi <redacted>
Fine with me, waiting for Mark or Rob to take a look though....
quoted hunk
--- .../devicetree/bindings/iio/adc/max9611.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/max9611.txtdiff --git a/Documentation/devicetree/bindings/iio/adc/max9611.txt b/Documentation/devicetree/bindings/iio/adc/max9611.txt new file mode 100644 index 0000000..8430d3b --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/max9611.txt@@ -0,0 +1,26 @@ +* 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-uohm: Value, in uOhm, of the current sense shunt resistor
I'm fine with this being generic, but it makes this just non trivial enough that I'll wait for Rob or Mark to have a chance to take a look at the binding.
+
+Example:
+
+&i2c4 {
+ csa: adc@7c {
+ compatible = "maxim,max9611";
+ reg = <0x7c>;
+
+ 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
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