diff options
Diffstat (limited to 'drivers/mmc/host/mxcmmc.c')
| -rw-r--r-- | drivers/mmc/host/mxcmmc.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index 750604f7fac9..b3d654c688e5 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -1010,10 +1010,8 @@ static int mxcmci_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "failed to get IRQ: %d\n", irq); + if (irq < 0) return irq; - } mmc = mmc_alloc_host(sizeof(*host), &pdev->dev); if (!mmc) @@ -1123,7 +1121,16 @@ static int mxcmci_probe(struct platform_device *pdev) mxcmci_writel(host, host->default_irq_mask, MMC_REG_INT_CNTR); if (!host->pdata) { - host->dma = dma_request_slave_channel(&pdev->dev, "rx-tx"); + host->dma = dma_request_chan(&pdev->dev, "rx-tx"); + if (IS_ERR(host->dma)) { + if (PTR_ERR(host->dma) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto out_clk_put; + } + + /* Ignore errors to fall back to PIO mode */ + host->dma = NULL; + } } else { res = platform_get_resource(pdev, IORESOURCE_DMA, 0); if (res) { |
