Hi, I am wondering what is the proper way to use the DMA_CTRL_ACK flag and the dma_run_dependencies call. Which part has to managed the DMA_CTRL_ACK flag? Controller, device or both? For instance I have found some controllers setting the DMA_CTRL_ACK flag but it is overwritten by the device. Some devices set DMA_CTRL_ACK and call async_tx_ack. Does it mean the controller has to call async_tx_clear_ack on its side? About dma_run_dependencies, I can't figure out if it is mandatory or not. Some controllers use it some don't. Perhaps you could clarify that for me. Ludovic -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
