This version (14 Jan 2021 05:42) was approved by Robin Getz.The Previously approved version (03 Jan 2021 21:46) is available.
Table of Contents
ADP5061 I2C Linear Battery Charger Linux Driver
Supported Devices
Evaluation Boards
Source Code
Status
| Source | Mainlined? |
|---|---|
| git | [No] |
Files
| Function | File |
|---|---|
| driver | https://github.com/analogdevicesinc/linux/blob/master/drivers/power/supply/adp5061.c |
Devicetree
Required devicetree properties:
- compatible: should be “adi,adp5061”
- reg: i2c address of the device
adp5061@14 {
compatible = "adi,adp5061";
reg = <0x14>;
};
Driver testing
This specifies any shell prompt running on the target
root:/> cd /sys/class/power_supply root:/sys/class/power_supply> ls adp5061 root:/sys/class/power_supply>cd adp5061 root:/sys/class/power_supply/adp5061> ls -l -r--r--r-- 1 root root 4096 Apr 2 14:25 capacity_level -rw-r--r-- 1 root root 4096 Apr 2 14:25 charge_term_current -r--r--r-- 1 root root 4096 Apr 2 14:25 charge_type -rw-r--r-- 1 root root 4096 Apr 2 14:25 charging_enabled -rw-r--r-- 1 root root 4096 Apr 2 14:25 charging_vlim_enabled -rw-r--r-- 1 root root 4096 Apr 2 14:25 constant_charge_current -rw-r--r-- 1 root root 4096 Apr 2 14:25 constant_charge_voltage_max lrwxrwxrwx 1 root root 0 Apr 2 14:25 device -> ../../../0-0014 -rw-r--r-- 1 root root 4096 Apr 2 14:25 input_current_limit drwxr-xr-x 2 root root 0 Apr 2 14:25 power -rw-r--r-- 1 root root 4096 Apr 2 14:25 precharge_current -r--r--r-- 1 root root 4096 Apr 2 14:25 present -r--r--r-- 1 root root 4096 Apr 2 14:25 status lrwxrwxrwx 1 root root 0 Apr 2 14:25 subsystem -> ../../../../../../../../class/power_supply -r--r--r-- 1 root root 4096 Apr 2 14:25 type -rw-r--r-- 1 root root 4096 Apr 2 14:25 uevent -rw-r--r-- 1 root root 4096 Apr 2 14:25 voltage_avg -rw-r--r-- 1 root root 4096 Apr 2 14:25 voltage_max -rw-r--r-- 1 root root 4096 Apr 2 14:25 voltage_min
Show Charger status
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat status Charging
Show charge type
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat charge_type Fast
Show the battery status
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat capacity_level Normal
Enable Charging
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat charging_enabled 0 root:/sys/class/power_supply/adp5061> echo 1 > charging_enabled root:/sys/class/power_supply/adp5061> cat charging_enabled 1
Enable Charging Voltage Limit
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat charging_vlim_enabled 0 root:/sys/class/power_supply/adp5061> echo 1 > charging_vlim_enabled root:/sys/class/power_supply/adp5061> cat charging_vlim_enabled 1
Show Termination Voltage (VTRM)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat voltage_max 4200000
Set Termination Voltage (VTRM)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> echo 3800000 > voltage_max root:/sys/class/power_supply/adp5061> cat voltage_max 3800000
Set the Input Current Limit into VINx (ILIM)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat input_current_limit 100000 root:/sys/class/power_supply/adp5061> echo 200000 > input_current_limit root:/sys/class/power_supply/adp5061> cat input_current_limit 200000
Set the Trickle to Fast Charge Threshold (VTRK_DEAD)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat voltage_min 2500000 root:/sys/class/power_supply/adp5061> echo 200000 > voltage_min root:/sys/class/power_supply/adp5061> cat voltage_min 200000
Set the Charging Voltage Limit (CHG_VLIM)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat constant_charge_voltage_max 3200000 root:/sys/class/power_supply/adp5061> echo 3800000 > constant_charge_voltage_max root:/sys/class/power_supply/adp5061> cat constant_charge_voltage_max 3800000
Set the Constant Charge Current (ICHG)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat constant_charge_current 750000 root:/sys/class/power_supply/adp5061> echo 500000 > constant_charge_current root:/sys/class/power_supply/adp5061> cat constant_charge_current 500000
Set the Trickle and Weak Charge Currents (ITRK_DEAD)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat precharge_current 20000 root:/sys/class/power_supply/adp5061> echo 10000 > precharge_current root:/sys/class/power_supply/adp5061> cat precharge_current 10000
Set the VWEAK Threshold
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat voltage_avg 3000000 root:/sys/class/power_supply/adp5061> echo 3400000 > voltage_avg root:/sys/class/power_supply/adp5061> cat voltage_avg 3400000
Set Termination Current (IEND)
This specifies any shell prompt running on the target
root:/sys/class/power_supply/adp5061> cat charge_term_current 52500 root:/sys/class/power_supply/adp5061> echo 72500 > charge_term_current root:/sys/class/power_supply/adp5061> cat charge_term_current 72500
More Information
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resources/tools-software/linux-drivers-all/battery-charger/adp5061.txt · Last modified: 14 Jan 2021 05:38 by Robin Getz