[PATCH v7 1/5] mmc: davinci: allow driver to work without DMA resource

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxx>
Tested-by: Sekhar Nori <nsekhar@xxxxxx>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux