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authorLudovic Desroches <ludovic.desroches@atmel.com>2014-11-13 11:52:45 +0100
committerVinod Koul <vinod.koul@intel.com>2014-11-17 14:07:21 +0530
commitfef4cbf2ab830fcd695d892927386ad9ccc46339 (patch)
tree0b262524389d8d8a62f14485da8c4774e6589c0f /drivers/dma/at_xdmac.c
parent466b3cf17ea6bee26cf7a404f51a44f2e884b31e (diff)
downloadlinux-stericsson-fef4cbf2ab830fcd695d892927386ad9ccc46339.tar.gz
dmaengine: at_xdmac: Add DMA_PRIVATE
same issue as commit 7f5ae3553685: "Without DMA_PRIVATE the driver is not able to allocate more than one channel. Since it uses dma_get_any_slave_channel that calls private_candidate, the second allocation fails at /* some channels are already publicly allocated */ " Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/at_xdmac.c')
-rw-r--r--drivers/dma/at_xdmac.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 586275fe1120..b60d77a22df6 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1394,6 +1394,11 @@ static int at_xdmac_probe(struct platform_device *pdev)
dma_cap_set(DMA_CYCLIC, atxdmac->dma.cap_mask);
dma_cap_set(DMA_MEMCPY, atxdmac->dma.cap_mask);
dma_cap_set(DMA_SLAVE, atxdmac->dma.cap_mask);
+ /*
+ * Without DMA_PRIVATE the driver is not able to allocate more than
+ * one channel, second allocation fails in private_candidate.
+ */
+ dma_cap_set(DMA_PRIVATE, atxdmac->dma.cap_mask);
atxdmac->dma.dev = &pdev->dev;
atxdmac->dma.device_alloc_chan_resources = at_xdmac_alloc_chan_resources;
atxdmac->dma.device_free_chan_resources = at_xdmac_free_chan_resources;