[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240327-digigram-xdma-fixes-v1-1-45f4a52c0283@bootlin.com>
Date: Wed, 27 Mar 2024 10:58:48 +0100
From: Louis Chauvet <louis.chauvet@...tlin.com>
To: Lizhi Hou <lizhi.hou@....com>, Brian Xu <brian.xu@....com>,
Raj Kumar Rampelli <raj.kumar.rampelli@....com>,
Vinod Koul <vkoul@...nel.org>, Michal Simek <michal.simek@....com>,
Jan Kuliga <jankul@...tek.krakow.pl>,
Miquel Raynal <miquel.raynal@...tlin.com>
Cc: dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, stable@...r.kernel.org,
Louis Chauvet <louis.chauvet@...tlin.com>
Subject: [PATCH 1/3] dmaengine: xilinx: xdma: Fix wrong offsets in the
buffers addresses in dma descriptor
From: Miquel Raynal <miquel.raynal@...tlin.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@...r.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Signed-off-by: Louis Chauvet <louis.chauvet@...tlin.com>
---
drivers/dma/xilinx/xdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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);
--
2.43.0
Powered by blists - more mailing lists