default or selected kernelversion does not have config value CONFIG_IIO_GPIO_TRIGGER.
Result is shown for kernelversion 6.2.5
GPIO trigger
modulename: iio-trig-gpio.ko
configname: CONFIG_IIO_GPIO_TRIGGER
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Industrial I/O support
└─>GPIO trigger
In linux kernel since version 2.6.32 (release Date: 2009-12-02)
Provides support for using GPIO pins as IIO triggers.