dt: binding documentation for bq2415x charger
[platform/adaptation/renesas_rcar/renesas_kernel.git] / Documentation / devicetree / bindings / power / bq2415x.txt
1 Binding for TI bq2415x Li-Ion Charger
2
3 Required properties:
4 - compatible: Should contain one of the following:
5  * "ti,bq24150"
6  * "ti,bq24150"
7  * "ti,bq24150a"
8  * "ti,bq24151"
9  * "ti,bq24151a"
10  * "ti,bq24152"
11  * "ti,bq24153"
12  * "ti,bq24153a"
13  * "ti,bq24155"
14  * "ti,bq24156"
15  * "ti,bq24156a"
16  * "ti,bq24158"
17 - reg:                     integer, i2c address of the device.
18 - ti,current-limit:        integer, initial maximum current charger can pull
19                            from power supply in mA.
20 - ti,weak-battery-voltage: integer, weak battery voltage threshold in mV.
21                            The chip will use slow precharge if battery voltage
22                            is below this value.
23 - ti,battery-regulation-voltage: integer, maximum charging voltage in mV.
24 - ti,charge-current:       integer, maximum charging current in mA.
25 - ti,termination-current:  integer, charge will be terminated when current in
26                            constant-voltage phase drops below this value (in mA).
27 - ti,resistor-sense:       integer, value of sensing resistor in milliohm.
28
29 Optional properties:
30 - ti,usb-charger-detection: phandle to usb charger detection device.
31                             (required for auto mode)
32
33 Example from Nokia N900:
34
35 bq24150a {
36         compatible = "ti,bq24150a";
37         reg = <0x6b>;
38
39         ti,current-limit = <100>;
40         ti,weak-battery-voltage = <3400>;
41         ti,battery-regulation-voltage = <4200>;
42         ti,charge-current = <650>;
43         ti,termination-current = <100>;
44         ti,resistor-sense = <68>;
45
46         ti,usb-charger-detection = <&isp1704>;
47 };