Other Parts Discussed in Thread: BQ25890,
Tool/software: Linux
Hi,
Mainline Linux version 4.15.0-rc6 armv7l sun8i H3.
I have setup the BQ25890 charger driver to support the BQ25895 chip ID with the following device tree however power supply sysfs is failing preventing my device from booting.
/* Binding for TI bq25890 Li-Ion Charger */
bq25890: bq25890@6a {
/* compatible: Should contain one of the following: "ti,bq25890" */
compatible = "ti,bq25890";
/* reg: integer, i2c address of the device */
reg = <0x6a>;
/* bank: 0, pin 20, function 6 */
gpios = <&pio 0 20 6>;
interrupt-parent = <&pio>;
interrupt-names = "bq25890-edge-falling";
interrupts = <GIC_SPI 11 IRQ_TYPE_EDGE_FALLING>; /* PA20 */
/* ti,battery-regulation-voltage: integer, maximum charging voltage (in uV) */
ti,battery-regulation-voltage = <4200000>;
/* ti,charge-current: integer, maximum charging current (in uA) */
ti,charge-current = <1000000>;
/* ti,termination-current: integer, charge will be terminated when current in
constant-voltage phase drops below this value (in uA)
*/
ti,termination-current = <50000>;
/* ti,precharge-current: integer, maximum charge current during precharge
phase (in uA) */
ti,precharge-current = <128000>;
/* 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,minimum-sys-voltage = <3600000>;
/* ti,boost-voltage: integer, VBUS voltage level in boost mode (in uV) */
ti,boost-voltage = <5000000>;
/* ti,boost-max-current: integer, maximum allowed current draw in boost mode
(in uA) */
ti,boost-max-current = <1000000>;
/* 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,boost-low-freq;
ti,use-ilim-pin;
ti,thermal-regulation-threshold = <120>;
};
# dmesg |grep bq25890
[ 4.673343] bq25890-charger 0-006a: S:CHG/PG/VSYS=2/1/0, F:CHG/BOOST/BAT=0/0/0
[ 4.681960] bq25890_irq_handler_thread ret=0 client->irq=62
[ 4.682144] power_supply bq25890-charger: uevent
[ 4.687896] power_supply bq25890-charger: POWER_SUPPLY_NAME=bq25890-charger
[ 4.690513] power_supply bq25890-charger: uevent
[ 4.690525] power_supply bq25890-charger: POWER_SUPPLY_NAME=bq25890-charger
[ 4.690545] power_supply bq25890-charger: prop MANUFACTURER=Texas Instruments
[ 4.690556] power_supply bq25890-charger: prop STATUS=Charging
[ 4.690568] power_supply bq25890-charger: prop ONLINE=1
[ 4.690575] power_supply bq25890-charger: prop HEALTH=Good
[ 4.702628] power_supply bq25890-charger: power_supply_changed
[ 4.702649] power_supply bq25890-charger: power_supply_changed_work
[ 4.702665] power_supply bq25890-charger: power_supply_update_gen_leds 1
[ 4.702688] power_supply bq25890-charger: uevent
[ 4.702694] power_supply bq25890-charger: POWER_SUPPLY_NAME=bq25890-charger
[ 4.702712] power_supply bq25890-charger: prop MANUFACTURER=Texas Instruments
[ 4.702722] power_supply bq25890-charger: prop STATUS=Charging
[ 4.702730] power_supply bq25890-charger: prop ONLINE=1
[ 4.702738] power_supply bq25890-charger: prop HEALTH=Good
[ 6.809126] power_supply bq25890-charger: driver failed to report `constant_charge_current' property: -110
