default or selected kernelversion does not have config value CONFIG_SPI_SIRF.
Result is shown for kernelversion 6.9.9
CSR SiRFprimaII SPI controller
modulename: spi-sirf.ko
configname: CONFIG_SPI_SIRF
Linux Kernel Configuration
└─>Device Drivers
└─>SPI support
└─>CSR SiRFprimaII SPI controller
In linux kernel since version 3.1 (release Date: 2011-10-24)
SPI driver for CSR SiRFprimaII SoCs