ina3221.txt (1708B)
1Texas Instruments INA3221 Device Tree Bindings 2 31) ina3221 node 4 Required properties: 5 - compatible: Must be "ti,ina3221" 6 - reg: I2C address 7 8 Optional properties: 9 - ti,single-shot: This chip has two power modes: single-shot (chip takes one 10 measurement and then shuts itself down) and continuous ( 11 chip takes continuous measurements). The continuous mode is 12 more reliable and suitable for hardware monitor type device, 13 but the single-shot mode is more power-friendly and useful 14 for battery-powered device which cares power consumptions 15 while still needs some measurements occasionally. 16 If this property is present, the single-shot mode will be 17 used, instead of the default continuous one for monitoring. 18 19 = The node contains optional child nodes for three channels = 20 = Each child node describes the information of input source = 21 22 - #address-cells: Required only if a child node is present. Must be 1. 23 - #size-cells: Required only if a child node is present. Must be 0. 24 252) child nodes 26 Required properties: 27 - reg: Must be 0, 1 or 2, corresponding to IN1, IN2 or IN3 port of INA3221 28 29 Optional properties: 30 - label: Name of the input source 31 - shunt-resistor-micro-ohms: Shunt resistor value in micro-Ohm 32 33Example: 34 35ina3221@40 { 36 compatible = "ti,ina3221"; 37 reg = <0x40>; 38 #address-cells = <1>; 39 #size-cells = <0>; 40 41 input@0 { 42 reg = <0x0>; 43 status = "disabled"; 44 }; 45 input@1 { 46 reg = <0x1>; 47 shunt-resistor-micro-ohms = <5000>; 48 }; 49 input@2 { 50 reg = <0x2>; 51 label = "VDD_5V"; 52 shunt-resistor-micro-ohms = <5000>; 53 }; 54};