default or selected kernelversion does not have config value CONFIG_PINCTRL_TH1520.
Result is shown for kernelversion 6.6.75

Pinctrl driver for the T-Head TH1520 SoC

modulename: pinctrl-th1520.ko

configname: CONFIG_PINCTRL_TH1520

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Device Tree and Open Firmware support
└─>Pinctrl driver for the T-Head TH1520 SoC
In linux kernel since version 6.13 (release Date: 2025-01-19)  
This is the driver for the pin controller blocks on the
T-Head TH1520 SoC.

This driver is needed for RISC-V development boards like
the BeagleV Ahead and the LicheePi 4A.

source code: