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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2012-01-18 10:14:25 +0100
committerVinod Koul <vinod.koul@linux.intel.com>2012-02-01 22:23:53 +0530
commite9c8d7a03e69093e4c33c5056a45c1233a42e8a4 (patch)
treeb9a37c891db8e273bf9ff177d4be00ec5050393a /drivers/dma
parenta5044cddad2fba36c725a019a6cd0e3f286b13d0 (diff)
downloadlinux-e9c8d7a03e69093e4c33c5056a45c1233a42e8a4.tar.bz2
dma: sh_dma: not all SH DMAC implementations support MEMCPY
Add a flag to allow platforms to specify, whether a DMAC instance supports the MEMCPY operation. To avoid regressions, preserve the current default. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/shdma.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 54043cd831c8..812fd76e9c18 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -1262,7 +1262,8 @@ static int __init sh_dmae_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&shdev->common.channels);
- dma_cap_set(DMA_MEMCPY, shdev->common.cap_mask);
+ if (!pdata->slave_only)
+ dma_cap_set(DMA_MEMCPY, shdev->common.cap_mask);
if (pdata->slave && pdata->slave_num)
dma_cap_set(DMA_SLAVE, shdev->common.cap_mask);