Merge tag 'dmaengine-5.8-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "A fairly small dmaengine update which includes mostly driver updates
  (dmatest, dw-edma, ioat, mmp-tdma and k3-udma) along with Renesas
  binding update to json-schema"

* tag 'dmaengine-5.8-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (39 commits)
  dmaengine: imx-sdma: initialize all script addresses
  dmaengine: ti: k3-udma: Use proper return code in alloc_chan_resources
  dmaengine: ti: k3-udma: Remove udma_chan.in_ring_cnt
  dmaengine: ti: k3-udma: Add missing dma_sync call for rx flush descriptor
  dmaengine: at_xdmac: Replace zero-length array with flexible-array
  dmaengine: at_hdmac: Replace zero-length array with flexible-array
  dmaengine: qcom: bam_dma: Replace zero-length array with flexible-array
  dmaengine: ti: k3-udma: Use PTR_ERR_OR_ZERO() to simplify code
  dmaengine: moxart-dma: Drop pointless static qualifier in moxart_probe()
  dmaengine: sf-pdma: Simplify the error handling path in 'sf_pdma_probe()'
  dmaengine: qcom_hidma: use true,false for bool variable
  dmaengine: dw-edma: support local dma device transfer semantics
  dmaengine: Fix doc strings to satisfy validation script
  dmaengine: Include dmaengine.h into dmaengine.c
  dmaengine: dmatest: Describe members of struct dmatest_info
  dmaengine: dmatest: Describe members of struct dmatest_params
  dmaengine: dmatest: Allow negative timeout value to specify infinite wait
  Revert "dmaengine: dmatest: timeout value of -1 should specify infinite wait"
  dmaengine: stm32-dma: direct mode support through device tree
  dt-bindings: dma: add direct mode support through device tree in stm32-dma
  ...

1 files changed, 22 insertions, 4 deletions

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index d683232d7fea..dbc6a48424fa 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -235,7 +235,7 @@ static int mmp_tdma_config_chan(struct dma_chan *chan)
 			tdcr |= TDCR_BURSTSZ_128B;
 			break;
 		default:
-			dev_err(tdmac->dev, "mmp_tdma: unknown burst size.\n");
+			dev_err(tdmac->dev, "unknown burst size.\n");
 			return -EINVAL;
 		}
 
@@ -250,7 +250,7 @@ static int mmp_tdma_config_chan(struct dma_chan *chan)
 			tdcr |= TDCR_SSZ_32_BITS;
 			break;
 		default:
-			dev_err(tdmac->dev, "mmp_tdma: unknown bus size.\n");
+			dev_err(tdmac->dev, "unknown bus size.\n");
 			return -EINVAL;
 		}
 	} else if (tdmac->type == PXA910_SQU) {
@@ -276,7 +276,7 @@ static int mmp_tdma_config_chan(struct dma_chan *chan)
 			tdcr |= TDCR_BURSTSZ_SQU_32B;
 			break;
 		default:
-			dev_err(tdmac->dev, "mmp_tdma: unknown burst size.\n");
+			dev_err(tdmac->dev, "unknown burst size.\n");
 			return -EINVAL;
 		}
 	}
@@ -429,8 +429,15 @@ static struct dma_async_tx_descriptor *mmp_tdma_prep_dma_cyclic(
 	int num_periods = buf_len / period_len;
 	int i = 0, buf = 0;
 
-	if (tdmac->status != DMA_COMPLETE)
+	if (!is_slave_direction(direction)) {
+		dev_err(tdmac->dev, "unsupported transfer direction\n");
 		return NULL;
+	}
+
+	if (tdmac->status != DMA_COMPLETE) {
+		dev_err(tdmac->dev, "controller busy");
+		return NULL;
+	}
 
 	if (period_len > TDMA_MAX_XFER_BYTES) {
 		dev_err(tdmac->dev,
@@ -704,6 +711,17 @@ static int mmp_tdma_probe(struct platform_device *pdev)
 	tdev->device.device_terminate_all = mmp_tdma_terminate_all;
 	tdev->device.copy_align = DMAENGINE_ALIGN_8_BYTES;
 
+	tdev->device.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	if (type == MMP_AUD_TDMA) {
+		tdev->device.max_burst = SZ_128;
+		tdev->device.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
+		tdev->device.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
+	} else if (type == PXA910_SQU) {
+		tdev->device.max_burst = SZ_32;
+	}
+	tdev->device.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
+	tdev->device.descriptor_reuse = true;
+
 	dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
 	platform_set_drvdata(pdev, tdev);