diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2019-12-12 15:55:46 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-12-16 11:57:26 +0000 |
| commit | 7ccffd41b2d4d180dcdcc03c54c446621e34bca5 (patch) | |
| tree | e8744d5f4b52d975f1b944a5b9876c250430dcb8 /drivers/spi/spi-mxs.c | |
| parent | 6bfbf4d0aa0c5ebfd4442e1200b21565703e90ed (diff) | |
| download | linux-7ccffd41b2d4d180dcdcc03c54c446621e34bca5.tar.bz2 | |
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 <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20191212135550.4634-6-peter.ujfalusi@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-mxs.c')
| -rw-r--r-- | drivers/spi/spi-mxs.c | 6 |
1 files changed, 3 insertions, 3 deletions
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; } |