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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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