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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2019-12-17 14:29:34 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2019-12-19 10:19:42 +0300
commit2e2d12e110b74f689b516619b0c240c9fd57127d (patch)
tree497eed395d966a5e964ac77f5b27c8a9f513fb1a /drivers/mmc
parent972a2dd62680229f9763ae9d274bfb3e9a445ab9 (diff)
downloadlinux-2e2d12e110b74f689b516619b0c240c9fd57127d.tar.xz
mmc: owl-mmc: 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/20191217112934.31535-1-peter.ujfalusi@ti.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/owl-mmc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mmc/host/owl-mmc.c b/drivers/mmc/host/owl-mmc.c
index 771e3d00f1bb..01ffe51f413d 100644
--- a/drivers/mmc/host/owl-mmc.c
+++ b/drivers/mmc/host/owl-mmc.c
@@ -616,10 +616,10 @@ static int owl_mmc_probe(struct platform_device *pdev)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
- owl_host->dma = dma_request_slave_channel(&pdev->dev, "mmc");
- if (!owl_host->dma) {
+ owl_host->dma = dma_request_chan(&pdev->dev, "mmc");
+ if (IS_ERR(owl_host->dma)) {
dev_err(owl_host->dev, "Failed to get external DMA channel.\n");
- ret = -ENXIO;
+ ret = PTR_ERR(owl_host->dma);
goto err_free_host;
}