default or selected kernelversion does not have config value CONFIG_SND_SOC_ROCKCHIP_PDM.
Result is shown for kernelversion 6.9-rc4
Rockchip PDM Controller Driver
modulename: snd-soc-rockchip-pdm.ko
configname: CONFIG_SND_SOC_ROCKCHIP_PDM
Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>Rockchip PDM Controller Driver
In linux kernel since version 3.10 (release Date: 2013-06-30)
Say Y or M if you want to add support for PDM driver for
Rockchip PDM Controller. The Controller supports up to maximum of
8 channels record.
Rockchip PDM Controller. The Controller supports up to maximum of
8 channels record.