default or selected kernelversion does not have config value CONFIG_CLK_R9A09G047.
Result is shown for kernelversion 6.6.78

RZ/G3E clock support

modulename: r9a09g047-cpg.ko

configname: CONFIG_CLK_R9A09G047

Linux Kernel Configuration
└─>Device Drivers
└─>Common Clock Framework
└─>RZ/G3E clock support
In linux kernel since version 6.6.78 (release Date: 2025-02-17)  
source code:
drivers/clk/renesas/r9a09g047-cpg.c