default or selected kernelversion does not have config value CONFIG_IDEAPAD_ACPI.
Result is shown for kernelversion 5.4.229

Lenovo IdeaPad ACPI Laptop Extras

modulename: ideapad_acpi.ko

configname: CONFIG_IDEAPAD_ACPI

Linux Kernel Configuration
└─>Device Drivers
└─>X86 Platform Specific Device Drivers
└─>Lenovo IdeaPad ACPI Laptop Extras
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
This is a driver for the rfkill switches on Lenovo IdeaPad netbooks.

source code:
drivers/platform/x86/ideapad_acpi.c