spi

• HS_LSPI_dma_b2b_transfer
• dma_b2b_transfer
• spi_dma_transfer
• half_duplex_transfer
• flexcomm_spi_interrupt
• interrupt_b2b
• interrupt_b2b_transfer
• spi_interrupt_flash
• spi_interrupt_transfer
• polling_b2b_transfer
• spi_polling_flash
• spi_polling_transfer