dma_tx_sconfig 509 drivers/tty/serial/fsl_lpuart.c struct dma_slave_config dma_tx_sconfig = {}; dma_tx_sconfig 512 drivers/tty/serial/fsl_lpuart.c dma_tx_sconfig.dst_addr = lpuart_dma_datareg_addr(sport); dma_tx_sconfig 513 drivers/tty/serial/fsl_lpuart.c dma_tx_sconfig.dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE; dma_tx_sconfig 514 drivers/tty/serial/fsl_lpuart.c dma_tx_sconfig.dst_maxburst = 1; dma_tx_sconfig 515 drivers/tty/serial/fsl_lpuart.c dma_tx_sconfig.direction = DMA_MEM_TO_DEV; dma_tx_sconfig 516 drivers/tty/serial/fsl_lpuart.c ret = dmaengine_slave_config(sport->dma_tx_chan, &dma_tx_sconfig);