Defined in 2 files as a config:

• arch/x86/soc/intel_quark/quark_x1000/Kconfig.defconfig.series, line 176 (as a config)
• drivers/spi/Kconfig, line 110 (as a config)

Referenced in 4 files:

• drivers/spi/spi_dw.c, line 455
• drivers/spi/spi_intel.c, line 484
• drivers/spi/spi_qmsi.c, line 355
• drivers/spi/spi_qmsi_ss.c, line 331