FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/power/supply/bq25890.txt

     Binding for TI bq25890 Li-Ion Charger
     
     This driver will support the bq25892, the bq25896 and the bq25890. There are
     other ICs in the same family but those have not been tested.
     
     Required properties:
     - compatible: Should contain one of the following:
         * "ti,bq25890"
         * "ti,bq25892"
        * "ti,bq25895"
        * "ti,bq25896"
    - reg: integer, i2c address of the device.
    - interrupts: interrupt line;
    - ti,battery-regulation-voltage: integer, maximum charging voltage (in uV);
    - ti,charge-current: integer, maximum charging current (in uA);
    - ti,termination-current: integer, charge will be terminated when current in
        constant-voltage phase drops below this value (in uA);
    - ti,precharge-current: integer, maximum charge current during precharge
        phase (in uA);
    - ti,minimum-sys-voltage: integer, when battery is charging and it is below
        minimum system voltage, the system will be regulated above
        minimum-sys-voltage setting (in uV);
    - ti,boost-voltage: integer, VBUS voltage level in boost mode (in uV);
    - ti,boost-max-current: integer, maximum allowed current draw in boost mode
        (in uA).
    
    Optional properties:
    - ti,boost-low-freq: boolean, if present boost mode frequency will be 500kHz,
        otherwise 1.5MHz;
    - ti,use-ilim-pin: boolean, if present the ILIM resistor will be used and the
        input current will be the lower between the resistor setting and the IINLIM
        register setting;
    - ti,thermal-regulation-threshold: integer, temperature above which the charge
        current is lowered, to avoid overheating (in degrees Celsius). If omitted,
        the default setting will be used (120 degrees);
    - ti,ibatcomp-micro-ohms: integer, value of a resistor in series with
        the battery;
    - ti,ibatcomp-clamp-microvolt: integer, maximum charging voltage adjustment due
        to expected voltage drop on in-series resistor;
    
    Example:
    
    bq25890 {
            compatible = "ti,bq25890";
            reg = <0x6a>;
    
            interrupt-parent = <&gpio1>;
            interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
    
            ti,battery-regulation-voltage = <4200000>;
            ti,charge-current = <1000000>;
            ti,termination-current = <50000>;
            ti,precharge-current = <128000>;
            ti,minimum-sys-voltage = <3600000>;
            ti,boost-voltage = <5000000>;
            ti,boost-max-current = <1000000>;
    
            ti,use-ilim-pin;
            ti,thermal-regulation-threshold = <120>;
    };

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