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authorLinus Torvalds <torvalds@linux-foundation.org>2013-01-24 10:17:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-01-24 10:17:49 -0800
commit3f58e0945eb064777f7b77e65ae44cb4f1efc92e (patch)
tree46b49ddc57887a52ba7c0d820e06d7313a7ce64b /drivers/dma/tegra20-apb-dma.c
parentacc5da0f9d89299b4115cf9cb995c0157cd6bf12 (diff)
parentb9bb37f5486ba05d2b557dbf1aeb754fef618985 (diff)
downloadop-kernel-dev-3f58e0945eb064777f7b77e65ae44cb4f1efc92e.zip
op-kernel-dev-3f58e0945eb064777f7b77e65ae44cb4f1efc92e.tar.gz
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul: "A few fixes on slave dmanengine. There are trivial fixes in imx-dma, tegra-dma & ioat driver" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dma: tegra: implement flags parameters for cyclic transfer dmaengine: imx-dma: Disable use of hw_chain to fix sg_dma transfers. ioat: Fix DMA memory sync direction correct flag
Diffstat (limited to 'drivers/dma/tegra20-apb-dma.c')
-rw-r--r--drivers/dma/tegra20-apb-dma.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index c39e61b..3cad856 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -266,6 +266,7 @@ static struct tegra_dma_desc *tegra_dma_desc_get(
if (async_tx_test_ack(&dma_desc->txd)) {
list_del(&dma_desc->node);
spin_unlock_irqrestore(&tdc->lock, flags);
+ dma_desc->txd.flags = 0;
return dma_desc;
}
}
@@ -1050,7 +1051,9 @@ struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
TEGRA_APBDMA_AHBSEQ_WRAP_SHIFT;
ahb_seq |= TEGRA_APBDMA_AHBSEQ_BUS_WIDTH_32;
- csr |= TEGRA_APBDMA_CSR_FLOW | TEGRA_APBDMA_CSR_IE_EOC;
+ csr |= TEGRA_APBDMA_CSR_FLOW;
+ if (flags & DMA_PREP_INTERRUPT)
+ csr |= TEGRA_APBDMA_CSR_IE_EOC;
csr |= tdc->dma_sconfig.slave_id << TEGRA_APBDMA_CSR_REQ_SEL_SHIFT;
apb_seq |= TEGRA_APBDMA_APBSEQ_WRAP_WORD_1;
@@ -1095,7 +1098,8 @@ struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
mem += len;
}
sg_req->last_sg = true;
- dma_desc->txd.flags = 0;
+ if (flags & DMA_CTRL_ACK)
+ dma_desc->txd.flags = DMA_CTRL_ACK;
/*
* Make sure that mode should not be conflicting with currently
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