Debug Statements

configname: CONFIG_ACPI_DEBUG

Linux Kernel Configuration
└─>Power management and ACPI options
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>Debug Statements
In linux kernel since version 4.2 (release Date: 2015-08-30)  
The ACPI subsystem can produce debug output. Saying Y enables this
output and increases the kernel size by around 50K.

Use the acpi.debug_layer and acpi.debug_level kernel command-line
parameters documented in Documentation/firmware-guide/acpi/debug.rst and
Documentation/admin-guide/kernel-parameters.rst to control the type and
amount of debug output.

depends
CONFIG_ACPI

is depended by
CONFIG_ACPI_DEBUGGER