From 7ccffd41b2d4d180dcdcc03c54c446621e34bca5 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 12 Dec 2019 15:55:46 +0200 Subject: spi: mxs: 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/20191212135550.4634-6-peter.ujfalusi@ti.com Signed-off-by: Mark Brown --- drivers/spi/spi-mxs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/spi/spi-mxs.c') diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index 996c1c8a9c71..dce85ee07cd0 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -590,10 +590,10 @@ static int mxs_spi_probe(struct platform_device *pdev) if (ret) goto out_master_free; - ssp->dmach = dma_request_slave_channel(&pdev->dev, "rx-tx"); - if (!ssp->dmach) { + ssp->dmach = dma_request_chan(&pdev->dev, "rx-tx"); + if (IS_ERR(ssp->dmach)) { dev_err(ssp->dev, "Failed to request DMA\n"); - ret = -ENODEV; + ret = PTR_ERR(ssp->dmach); goto out_master_free; } -- cgit v1.2.3