mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2025-01-27 00:04:47 +08:00
dmaengine: axi-dmac: Don't check the number of frames for alignment
In 2D transfers (for the AXI DMAC), the number of frames (numf) represents
Y_LENGTH, and the length of a frame is X_LENGTH. 2D transfers are useful
for video transfers where screen resolutions ( X * Y ) are typically
aligned for X, but not for Y.
There is no requirement for Y_LENGTH to be aligned to the bus-width (or
anything), and this is also true for AXI DMAC.
Checking the Y_LENGTH for alignment causes false errors when initiating DMA
transfers. This change fixes this by checking only that the Y_LENGTH is
non-zero.
Fixes: 0e3b67b348
("dmaengine: Add support for the Analog Devices AXI-DMAC DMA controller")
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
parent
56009f0d2f
commit
648865a79d
@ -526,7 +526,7 @@ static struct dma_async_tx_descriptor *axi_dmac_prep_interleaved(
|
||||
|
||||
if (chan->hw_2d) {
|
||||
if (!axi_dmac_check_len(chan, xt->sgl[0].size) ||
|
||||
!axi_dmac_check_len(chan, xt->numf))
|
||||
xt->numf == 0)
|
||||
return NULL;
|
||||
if (xt->sgl[0].size + dst_icg > chan->max_length ||
|
||||
xt->sgl[0].size + src_icg > chan->max_length)
|
||||
|
Loading…
Reference in New Issue
Block a user