diff options
Diffstat (limited to 'drivers/spi/spi-dw-dma.c')
| -rw-r--r-- | drivers/spi/spi-dw-dma.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/spi/spi-dw-dma.c b/drivers/spi/spi-dw-dma.c index 63e5260100ec..1322b8cce5b7 100644 --- a/drivers/spi/spi-dw-dma.c +++ b/drivers/spi/spi-dw-dma.c @@ -139,15 +139,20 @@ err_exit: static int dw_spi_dma_init_generic(struct device *dev, struct dw_spi *dws) { - dws->rxchan = dma_request_slave_channel(dev, "rx"); - if (!dws->rxchan) - return -ENODEV; + int ret; - dws->txchan = dma_request_slave_channel(dev, "tx"); - if (!dws->txchan) { - dma_release_channel(dws->rxchan); + dws->rxchan = dma_request_chan(dev, "rx"); + if (IS_ERR(dws->rxchan)) { + ret = PTR_ERR(dws->rxchan); dws->rxchan = NULL; - return -ENODEV; + goto err_exit; + } + + dws->txchan = dma_request_chan(dev, "tx"); + if (IS_ERR(dws->txchan)) { + ret = PTR_ERR(dws->txchan); + dws->txchan = NULL; + goto free_rxchan; } dws->master->dma_rx = dws->rxchan; @@ -160,6 +165,12 @@ static int dw_spi_dma_init_generic(struct device *dev, struct dw_spi *dws) dw_spi_dma_sg_burst_init(dws); return 0; + +free_rxchan: + dma_release_channel(dws->rxchan); + dws->rxchan = NULL; +err_exit: + return ret; } static void dw_spi_dma_exit(struct dw_spi *dws) |