diff options
Diffstat (limited to 'drivers/spi/spi-ep93xx.c')
| -rw-r--r-- | drivers/spi/spi-ep93xx.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c index 6db2887..e805507 100644 --- a/drivers/spi/spi-ep93xx.c +++ b/drivers/spi/spi-ep93xx.c @@ -545,13 +545,12 @@ static void ep93xx_spi_pio_transfer(struct ep93xx_spi *espi) * in case of failure. */ static struct dma_async_tx_descriptor * -ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) +ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_transfer_direction dir) { struct spi_transfer *t = espi->current_msg->state; struct dma_async_tx_descriptor *txd; enum dma_slave_buswidth buswidth; struct dma_slave_config conf; - enum dma_transfer_direction slave_dirn; struct scatterlist *sg; struct sg_table *sgt; struct dma_chan *chan; @@ -567,14 +566,13 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) memset(&conf, 0, sizeof(conf)); conf.direction = dir; - if (dir == DMA_FROM_DEVICE) { + if (dir == DMA_DEV_TO_MEM) { chan = espi->dma_rx; buf = t->rx_buf; sgt = &espi->rx_sgt; conf.src_addr = espi->sspdr_phys; conf.src_addr_width = buswidth; - slave_dirn = DMA_DEV_TO_MEM; } else { chan = espi->dma_tx; buf = t->tx_buf; @@ -582,7 +580,6 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) conf.dst_addr = espi->sspdr_phys; conf.dst_addr_width = buswidth; - slave_dirn = DMA_MEM_TO_DEV; } ret = dmaengine_slave_config(chan, &conf); @@ -633,8 +630,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) if (!nents) return ERR_PTR(-ENOMEM); - txd = dmaengine_prep_slave_sg(chan, sgt->sgl, nents, - slave_dirn, DMA_CTRL_ACK); + txd = dmaengine_prep_slave_sg(chan, sgt->sgl, nents, dir, DMA_CTRL_ACK); if (!txd) { dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); return ERR_PTR(-ENOMEM); @@ -651,12 +647,12 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) * unmapped. */ static void ep93xx_spi_dma_finish(struct ep93xx_spi *espi, - enum dma_data_direction dir) + enum dma_transfer_direction dir) { struct dma_chan *chan; struct sg_table *sgt; - if (dir == DMA_FROM_DEVICE) { + if (dir == DMA_DEV_TO_MEM) { chan = espi->dma_rx; sgt = &espi->rx_sgt; } else { @@ -677,16 +673,16 @@ static void ep93xx_spi_dma_transfer(struct ep93xx_spi *espi) struct spi_message *msg = espi->current_msg; struct dma_async_tx_descriptor *rxd, *txd; - rxd = ep93xx_spi_dma_prepare(espi, DMA_FROM_DEVICE); + rxd = ep93xx_spi_dma_prepare(espi, DMA_DEV_TO_MEM); if (IS_ERR(rxd)) { dev_err(&espi->pdev->dev, "DMA RX failed: %ld\n", PTR_ERR(rxd)); msg->status = PTR_ERR(rxd); return; } - txd = ep93xx_spi_dma_prepare(espi, DMA_TO_DEVICE); + txd = ep93xx_spi_dma_prepare(espi, DMA_MEM_TO_DEV); if (IS_ERR(txd)) { - ep93xx_spi_dma_finish(espi, DMA_FROM_DEVICE); + ep93xx_spi_dma_finish(espi, DMA_DEV_TO_MEM); dev_err(&espi->pdev->dev, "DMA TX failed: %ld\n", PTR_ERR(rxd)); msg->status = PTR_ERR(txd); return; @@ -705,8 +701,8 @@ static void ep93xx_spi_dma_transfer(struct ep93xx_spi *espi) wait_for_completion(&espi->wait); - ep93xx_spi_dma_finish(espi, DMA_TO_DEVICE); - ep93xx_spi_dma_finish(espi, DMA_FROM_DEVICE); + ep93xx_spi_dma_finish(espi, DMA_MEM_TO_DEV); + ep93xx_spi_dma_finish(espi, DMA_DEV_TO_MEM); } /** |
