diff options
| -rw-r--r-- | drivers/spi/spi-s3c64xx.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index a7a739c..eee1a7b 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -429,27 +429,26 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi) dma_cap_mask_t mask; int ret; - if (is_polling(sdd)) - return 0; - - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - - /* Acquire DMA channels */ - sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter, - (void *)sdd->rx_dma.dmach, dev, "rx"); - if (!sdd->rx_dma.ch) { - dev_err(dev, "Failed to get RX DMA channel\n"); - ret = -EBUSY; - goto out; - } + if (!is_polling(sdd)) { + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + + /* Acquire DMA channels */ + sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter, + (void *)sdd->rx_dma.dmach, dev, "rx"); + if (!sdd->rx_dma.ch) { + dev_err(dev, "Failed to get RX DMA channel\n"); + ret = -EBUSY; + goto out; + } - sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter, - (void *)sdd->tx_dma.dmach, dev, "tx"); - if (!sdd->tx_dma.ch) { - dev_err(dev, "Failed to get TX DMA channel\n"); - ret = -EBUSY; - goto out_rx; + sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter, + (void *)sdd->tx_dma.dmach, dev, "tx"); + if (!sdd->tx_dma.ch) { + dev_err(dev, "Failed to get TX DMA channel\n"); + ret = -EBUSY; + goto out_rx; + } } ret = pm_runtime_get_sync(&sdd->pdev->dev); |
