default or selected kernelversion does not have config value CONFIG_ACPI_PPTT.
Result is shown for kernelversion 6.9.9

CONFIG_ACPI_PPTT (not configurable)

modulename: pptt.ko

configname: CONFIG_ACPI_PPTT

Linux Kernel Configuration
└─>Power management and ACPI options
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>ACPI_PPTT
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/acpi/pptt.c