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| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2024-03-27 10:58:48 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-02 16:35:28 +0200 |
| commit | f70e6b9e4bf5caea49f9ea94d7c40814b1b0da17 (patch) | |
| tree | 8870f994453ec30ec06089bc3f98c1ea1b12f34e | |
| parent | 1b27647591cc4e6af0b3674979c47637c586b579 (diff) | |
| download | linux-stable-f70e6b9e4bf5caea49f9ea94d7c40814b1b0da17.tar.gz linux-stable-f70e6b9e4bf5caea49f9ea94d7c40814b1b0da17.tar.bz2 linux-stable-f70e6b9e4bf5caea49f9ea94d7c40814b1b0da17.zip | |
dmaengine: xilinx: xdma: Fix wrong offsets in the buffers addresses in dma descriptor
commit 5b9706bfc094314c600ab810a61208a7cbaa4cb3 upstream.
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>
Link: https://lore.kernel.org/r/20240327-digigram-xdma-fixes-v1-1-45f4a52c0283@bootlin.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/dma/xilinx/xdma.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |