89 	struct spi_master	*master;  member
172 	struct sun6i_spi *sspi = spi_master_get_devdata(spi->master);  in sun6i_spi_set_cs()
196 	struct spi_master *master = sspi->master;  in sun6i_spi_prepare_dma()  local
207 		dmaengine_slave_config(master->dma_rx, &rxconf);  in sun6i_spi_prepare_dma()
209 		rxdesc = dmaengine_prep_slave_sg(master->dma_rx,  in sun6i_spi_prepare_dma()
227 		dmaengine_slave_config(master->dma_tx, &txconf);  in sun6i_spi_prepare_dma()
229 		txdesc = dmaengine_prep_slave_sg(master->dma_tx,  in sun6i_spi_prepare_dma()
236 				dmaengine_terminate_sync(master->dma_rx);  in sun6i_spi_prepare_dma()
243 		dma_async_issue_pending(master->dma_rx);  in sun6i_spi_prepare_dma()
248 		dma_async_issue_pending(master->dma_tx);  in sun6i_spi_prepare_dma()
254 static int sun6i_spi_transfer_one(struct spi_master *master,  in sun6i_spi_transfer_one()  argument
258 	struct sun6i_spi *sspi = spi_master_get_devdata(master);  in sun6i_spi_transfer_one()
274 	use_dma = master->can_dma ? master->can_dma(master, spi, tfr) : false;  in sun6i_spi_transfer_one()
402 			dev_warn(&master->dev,  in sun6i_spi_transfer_one()
431 		dev_warn(&master->dev,  in sun6i_spi_transfer_one()
441 		dmaengine_terminate_sync(master->dma_rx);  in sun6i_spi_transfer_one()
442 		dmaengine_terminate_sync(master->dma_tx);  in sun6i_spi_transfer_one()
488 	struct spi_master *master = dev_get_drvdata(dev);  in sun6i_spi_runtime_resume()  local
489 	struct sun6i_spi *sspi = spi_master_get_devdata(master);  in sun6i_spi_runtime_resume()
525 	struct spi_master *master = dev_get_drvdata(dev);  in sun6i_spi_runtime_suspend()  local
526 	struct sun6i_spi *sspi = spi_master_get_devdata(master);  in sun6i_spi_runtime_suspend()
535 static bool sun6i_spi_can_dma(struct spi_master *master,  in sun6i_spi_can_dma()  argument
539 	struct sun6i_spi *sspi = spi_master_get_devdata(master);  in sun6i_spi_can_dma()
551 	struct spi_master *master;  in sun6i_spi_probe()  local
556 	master = spi_alloc_master(&pdev->dev, sizeof(struct sun6i_spi));  in sun6i_spi_probe()
557 	if (!master) {  in sun6i_spi_probe()
558 		dev_err(&pdev->dev, "Unable to allocate SPI Master\n");  in sun6i_spi_probe()
562 	platform_set_drvdata(pdev, master);  in sun6i_spi_probe()
563 	sspi = spi_master_get_devdata(master);  in sun6i_spi_probe()
584 	sspi->master = master;  in sun6i_spi_probe()
587 	master->max_speed_hz = 100 * 1000 * 1000;  in sun6i_spi_probe()
588 	master->min_speed_hz = 3 * 1000;  in sun6i_spi_probe()
589 	master->use_gpio_descriptors = true;  in sun6i_spi_probe()
590 	master->set_cs = sun6i_spi_set_cs;  in sun6i_spi_probe()
591 	master->transfer_one = sun6i_spi_transfer_one;  in sun6i_spi_probe()
592 	master->num_chipselect = 4;  in sun6i_spi_probe()
593 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;  in sun6i_spi_probe()
594 	master->bits_per_word_mask = SPI_BPW_MASK(8);  in sun6i_spi_probe()
595 	master->dev.of_node = pdev->dev.of_node;  in sun6i_spi_probe()
596 	master->auto_runtime_pm = true;  in sun6i_spi_probe()
597 	master->max_transfer_size = sun6i_spi_max_transfer_size;  in sun6i_spi_probe()
622 	master->dma_tx = dma_request_chan(&pdev->dev, "tx");  in sun6i_spi_probe()
623 	if (IS_ERR(master->dma_tx)) {  in sun6i_spi_probe()
625 		if (PTR_ERR(master->dma_tx) == -EPROBE_DEFER) {  in sun6i_spi_probe()
630 		master->dma_tx = NULL;  in sun6i_spi_probe()
633 	master->dma_rx = dma_request_chan(&pdev->dev, "rx");  in sun6i_spi_probe()
634 	if (IS_ERR(master->dma_rx)) {  in sun6i_spi_probe()
635 		if (PTR_ERR(master->dma_rx) == -EPROBE_DEFER) {  in sun6i_spi_probe()
640 		master->dma_rx = NULL;  in sun6i_spi_probe()
643 	if (master->dma_tx && master->dma_rx) {  in sun6i_spi_probe()
646 		master->can_dma = sun6i_spi_can_dma;  in sun6i_spi_probe()
664 	ret = devm_spi_register_master(&pdev->dev, master);  in sun6i_spi_probe()
666 		dev_err(&pdev->dev, "cannot register SPI master\n");  in sun6i_spi_probe()
676 	if (master->dma_rx)  in sun6i_spi_probe()
677 		dma_release_channel(master->dma_rx);  in sun6i_spi_probe()
679 	if (master->dma_tx)  in sun6i_spi_probe()
680 		dma_release_channel(master->dma_tx);  in sun6i_spi_probe()
682 	spi_master_put(master);  in sun6i_spi_probe()
688 	struct spi_master *master = platform_get_drvdata(pdev);  in sun6i_spi_remove()  local
692 	if (master->dma_tx)  in sun6i_spi_remove()
693 		dma_release_channel(master->dma_tx);  in sun6i_spi_remove()
694 	if (master->dma_rx)  in sun6i_spi_remove()
695 		dma_release_channel(master->dma_rx);  in sun6i_spi_remove()