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authorManjunathappa, Prakash <prakash.pm@ti.com>2013-02-05 17:52:24 +0530
committerChris Ball <cjb@laptop.org>2013-03-22 12:05:16 -0400
commite3e020f8acbd39a6feb1b6903725aaf658b0fec4 (patch)
treeee1432f71cddd61f549d7d65350172a50a4cdc39 /drivers/mmc/host/davinci_mmc.c
parentc69042a51e7d890c373345a7e524e895b266eb72 (diff)
downloadlinux-e3e020f8acbd39a6feb1b6903725aaf658b0fec4.tar.bz2
mmc: davinci_mmc: allow driver to work without DMA resource
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@ti.com> Tested-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/davinci_mmc.c')
-rw-r--r--drivers/mmc/host/davinci_mmc.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 20636772c09b..27123f8b7041 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -1190,13 +1190,15 @@ 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);