From 401abb764abb6e42f539528e02127457eb0c5b32 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 12 Dec 2019 15:55:47 +0200 Subject: [PATCH] spi: sirf: Use dma_request_chan() instead dma_request_slave_channel() dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. By using dma_request_chan() directly the driver can support deferred probing against DMA. Signed-off-by: Peter Ujfalusi Link: https://lore.kernel.org/r/20191212135550.4634-7-peter.ujfalusi@ti.com Signed-off-by: Mark Brown --- drivers/spi/spi-sirf.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index e1e6391..8419e67 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -1126,16 +1126,16 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) sspi->bitbang.master->dev.of_node = pdev->dev.of_node; /* request DMA channels */ - sspi->rx_chan = dma_request_slave_channel(&pdev->dev, "rx"); - if (!sspi->rx_chan) { + sspi->rx_chan = dma_request_chan(&pdev->dev, "rx"); + if (IS_ERR(sspi->rx_chan)) { dev_err(&pdev->dev, "can not allocate rx dma channel\n"); - ret = -ENODEV; + ret = PTR_ERR(sspi->rx_chan); goto free_master; } - sspi->tx_chan = dma_request_slave_channel(&pdev->dev, "tx"); - if (!sspi->tx_chan) { + sspi->tx_chan = dma_request_chan(&pdev->dev, "tx"); + if (IS_ERR(sspi->tx_chan)) { dev_err(&pdev->dev, "can not allocate tx dma channel\n"); - ret = -ENODEV; + ret = PTR_ERR(sspi->tx_chan); goto free_rx_dma; } -- 2.7.4