diff options
Diffstat (limited to 'drivers/mmc/host/bcm2835.c')
| -rw-r--r-- | drivers/mmc/host/bcm2835.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c index 99f61fd2a658..c3d949847cbd 100644 --- a/drivers/mmc/host/bcm2835.c +++ b/drivers/mmc/host/bcm2835.c @@ -1393,7 +1393,17 @@ static int bcm2835_probe(struct platform_device *pdev) host->dma_chan = NULL; host->dma_desc = NULL; - host->dma_chan_rxtx = dma_request_slave_channel(dev, "rx-tx"); + host->dma_chan_rxtx = dma_request_chan(dev, "rx-tx"); + if (IS_ERR(host->dma_chan_rxtx)) { + ret = PTR_ERR(host->dma_chan_rxtx); + host->dma_chan_rxtx = NULL; + + if (ret == -EPROBE_DEFER) + goto err; + + /* Ignore errors to fall back to PIO mode */ + } + clk = devm_clk_get(dev, NULL); if (IS_ERR(clk)) { |