From: Jacopo Mondi Date: Thu, 6 Apr 2017 14:20:51 +0000 (+0200) Subject: dt-bindings: iio: adc: Add max9611 ADC X-Git-Tag: v4.12-rc1~84^2~115^2~19 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2a70d55029e467faaab6659f21d0e0cdf27576cf;p=karo-tx-linux.git dt-bindings: iio: adc: Add max9611 ADC Add device tree bindings documentation for Maxim max9611/max9612 current sense amplifier. Signed-off-by: Jacopo Mondi Signed-off-by: Jonathan Cameron --- diff --git a/Documentation/devicetree/bindings/iio/adc/max9611.txt b/Documentation/devicetree/bindings/iio/adc/max9611.txt new file mode 100644 index 000000000000..ab4f43145ae5 --- /dev/null +++ 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 + - 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.