21 #include <linux/spi/offload/provider.h>
160 	struct spi_offload *offload;  member
270 		/* If we have an offload transfer, we can't rx to buffer */  in spi_engine_precompile_message()
271 		if (msg->offload && xfer->rx_buf)  in spi_engine_precompile_message()
578 	struct spi_engine_offload *priv = msg->offload->priv;  in spi_engine_offload_prepare()
612 	 * This protects against calling spi_optimize_message() with an offload  in spi_engine_offload_prepare()
651 static void spi_engine_offload_unprepare(struct spi_offload *offload)  in spi_engine_offload_unprepare()  argument
653 	struct spi_engine_offload *priv = offload->priv;  in spi_engine_offload_unprepare()
683 		msg->offload ? 0 : AXI_SPI_ENGINE_CUR_MSG_SYNC_ID));  in spi_engine_optimize_message()
687 	if (msg->offload) {  in spi_engine_optimize_message()
701 	if (msg->offload)  in spi_engine_unoptimize_message()
702 		spi_engine_offload_unprepare(msg->offload);  in spi_engine_unoptimize_message()
717 	if (!spi_engine->offload)  in spi_engine_get_offload()
723 	priv = spi_engine->offload->priv;  in spi_engine_get_offload()
728 	return spi_engine->offload;  in spi_engine_get_offload()
731 static void spi_engine_put_offload(struct spi_offload *offload)  in spi_engine_put_offload()  argument
733 	struct spi_engine_offload *priv = offload->priv;  in spi_engine_put_offload()
770 	if (msg->offload) {  in spi_engine_transfer_one_message()
771 		dev_err(&host->dev, "Single transfer offload not supported\n");  in spi_engine_transfer_one_message()
831 static int spi_engine_trigger_enable(struct spi_offload *offload)  in spi_engine_trigger_enable()  argument
833 	struct spi_engine_offload *priv = offload->priv;  in spi_engine_trigger_enable()
845 static void spi_engine_trigger_disable(struct spi_offload *offload)  in spi_engine_trigger_disable()  argument
847 	struct spi_engine_offload *priv = offload->priv;  in spi_engine_trigger_disable()
859 *spi_engine_tx_stream_request_dma_chan(struct spi_offload *offload)  in spi_engine_tx_stream_request_dma_chan()  argument
861 	struct spi_engine_offload *priv = offload->priv;  in spi_engine_tx_stream_request_dma_chan()
864 	snprintf(name, sizeof(name), "offload%u-tx", priv->offload_num);  in spi_engine_tx_stream_request_dma_chan()
866 	return dma_request_chan(offload->provider_dev, name);  in spi_engine_tx_stream_request_dma_chan()
870 *spi_engine_rx_stream_request_dma_chan(struct spi_offload *offload)  in spi_engine_rx_stream_request_dma_chan()  argument
872 	struct spi_engine_offload *priv = offload->priv;  in spi_engine_rx_stream_request_dma_chan()
875 	snprintf(name, sizeof(name), "offload%u-rx", priv->offload_num);  in spi_engine_rx_stream_request_dma_chan()
877 	return dma_request_chan(offload->provider_dev, name);  in spi_engine_rx_stream_request_dma_chan()
917 	 * REVISIT: for now, all SPI Engines only have one offload. In the  in spi_engine_probe()
920 	 * now, we can tell if an offload is present if there is a trigger  in spi_engine_probe()
926 		spi_engine->offload =  in spi_engine_probe()
929 		if (IS_ERR(spi_engine->offload))  in spi_engine_probe()
930 			return PTR_ERR(spi_engine->offload);  in spi_engine_probe()
932 		priv = spi_engine->offload->priv;  in spi_engine_probe()
936 		spi_engine->offload->ops = &spi_engine_offload_ops;  in spi_engine_probe()
941 			spi_engine->offload->xfer_flags |= SPI_OFFLOAD_XFER_RX_STREAM;  in spi_engine_probe()
946 			spi_engine->offload->xfer_flags |= SPI_OFFLOAD_XFER_TX_STREAM;  in spi_engine_probe()