Created attachment 290657 [details] dmesg | grep -i acpi I have a Cherrytrail-based tablet (Trekstor SurfTab twin 11.6) which shows no information about batery state / power management at all. It seems the right modules are loaded: axp20x_pek 16384 0 axp288_fuel_gauge 28672 0 industrialio 94208 4 industrialio_triggered_buffer,kfifo_buf,axp288_fuel_gauge,bmc150_accel_core axp20x_i2c 16384 0 regmap_i2c 16384 3 snd_soc_rt5651,axp20x_i2c,bmc150_accel_i2c axp20x 32768 1 axp20x_i2c mfd_core 20480 2 axp20x,lpc_ich But the directory /sys/class/power_supply is empty and the acpi tool also Related to AXP288 and ACPI the log shows this: [ 32.387720] ACPI: AC: found native INT33F4 PMIC, not loading [ 32.851507] ACPI: AC: found native INT33F4 PMIC, not loading I attached the output of dmesg and lsmod and dmidecode. If you need anything else please let me know. Thanks, Tino
Created attachment 290659 [details] lsmod
Created attachment 290807 [details] acpidump This is acpi dump of the device
This report is a follow-up of this: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=964181
We can close this as this is a config-related issue. With CONFIG_I2C_DESIGNWARE_CORE=y CONFIG_I2C_DESIGNWARE_PLATFORM=y CONFIG_MFD_CORE=y CONFIG_MFD_AXP20X=y CONFIG_MFD_AXP20X_I2C=y CONFIG_AXP288_ADC=m it works as it should.