diff mbox series

[1/3] dmaengine: xilinx: xdma: Fix wrong offsets in the buffers addresses in dma descriptor

Message ID 20240327-digigram-xdma-fixes-v1-1-45f4a52c0283@bootlin.com (mailing list archive)
State New, archived
Headers show
Series dmaengine: xilinx: xdma: Various fixes for xdma | expand

Commit Message

Louis Chauvet March 27, 2024, 9:58 a.m. UTC 
From: Miquel Raynal <miquel.raynal@bootlin.com>

The addition of interleaved transfers slightly changed the way
addresses inside DMA descriptors are derived, breaking cyclic
transfers.

Fixes: 3e184e64c2e5 ("dmaengine: xilinx: xdma: Prepare the introduction of interleaved DMA transfers")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
---
 drivers/dma/xilinx/xdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/dma/xilinx/xdma.c b/drivers/dma/xilinx/xdma.c
index 170017ff2aad..b9788aa8f6b7 100644
--- a/drivers/dma/xilinx/xdma.c
+++ b/drivers/dma/xilinx/xdma.c
@@ -704,7 +704,7 @@  xdma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t address,
 	desc_num = 0;
 	for (i = 0; i < periods; i++) {
 		desc_num += xdma_fill_descs(sw_desc, *src, *dst, period_size, desc_num);
-		addr += i * period_size;
+		addr += period_size;
 	}
 
 	tx_desc = vchan_tx_prep(&xdma_chan->vchan, &sw_desc->vdesc, flags);