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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2019-12-17 14:28:47 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2019-12-19 10:19:42 +0300
commit972a2dd62680229f9763ae9d274bfb3e9a445ab9 (patch)
treec7783ba7b80850f945c4a6b57b2918979f63b527 /drivers/mmc
parentc3b2a0212b729851ee8184ac1caa4ed3b8c39f20 (diff)
downloadlinux-972a2dd62680229f9763ae9d274bfb3e9a445ab9.tar.xz
mmc: 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/20191217112847.31351-1-peter.ujfalusi@ti.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/mxs-mmc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 4031217d21c3..d82674aed447 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -623,11 +623,11 @@ static int mxs_mmc_probe(struct platform_device *pdev)
goto out_clk_disable;
}
- 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(mmc_dev(host->mmc),
"%s: failed to request dma\n", __func__);
- ret = -ENODEV;
+ ret = PTR_ERR(ssp->dmach);
goto out_clk_disable;
}