[PATCH v7 1/5] mmc: davinci: allow driver to work without DMA resource
Manjunathappa, Prakash
prakash.pm at ti.com
Thu Mar 28 09:10:07 EDT 2013
Do not return probe failure with missing DMA resources,
allow driver to work in PIO mode.
Tested on da850-evm by mounting partition followed by
file creation and deletion.
Signed-off-by: Manjunathappa, Prakash <prakash.pm at ti.com>
Tested-by: Sekhar Nori <nsekhar at ti.com>
---
drivers/mmc/host/davinci_mmc.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index f5d46ea..bd848d3 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -1191,13 +1191,15 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!r)
- goto out;
- host->rxdma = r->start;
+ dev_warn(&pdev->dev, "RX DMA resource not specified\n");
+ else
+ host->rxdma = r->start;
r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!r)
- goto out;
- host->txdma = r->start;
+ dev_warn(&pdev->dev, "TX DMA resource not specified\n");
+ else
+ host->txdma = r->start;
host->mem_res = mem;
host->base = ioremap(mem->start, mem_size);
--
1.7.4.1
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