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

drivers/dma/imx-dma.c

@@ -684,9 +684,8 @@ static int imxdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
 			break;
 		}
 
-		imxdmac->hw_chaining = 1;
-		if (!imxdma_hw_chain(imxdmac))
-			return -EINVAL;
+		imxdmac->hw_chaining = 0;
+
 		imxdmac->ccr_from_device = (mode | IMX_DMA_TYPE_FIFO) |
 			((IMX_DMA_MEMSIZE_32 | IMX_DMA_TYPE_LINEAR) << 2) |
 			CCR_REN;

drivers/dma/ioat/dma_v3.c

@@ -951,7 +951,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 			goto free_resources;
 		}
 	}
-	dma_sync_single_for_device(dev, dest_dma, PAGE_SIZE, DMA_TO_DEVICE);
+	dma_sync_single_for_device(dev, dest_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 
 	/* skip validate if the capability is not present */
 	if (!dma_has_cap(DMA_XOR_VAL, dma_chan->device->cap_mask))

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