Lines Matching defs:desc
359 struct dma_async_tx_descriptor *desc = NULL;
387 desc = dmaengine_prep_slave_single(stm32port->tx_ch,
393 if (!desc)
396 desc->callback = stm32_usart_tx_dma_complete;
397 desc->callback_param = port;
400 if (dma_submit_error(dmaengine_submit(desc))) {
1144 struct dma_async_tx_descriptor *desc = NULL;
1181 desc = dmaengine_prep_dma_cyclic(stm32port->rx_ch,
1185 if (!desc) {
1192 desc->callback = NULL;
1193 desc->callback_param = NULL;
1196 ret = dma_submit_error(dmaengine_submit(desc));