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fpga: zynqpl: fix buffer alignment 

Due to pointer arithmetic, "sizeof(u32) * ARCH_DMA_MINALIGN" is
subtracted. It seems that the original intention was to just subtract
ARCH_DMA_MINALIGN. Fix it.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michael Walle 2021-02-10 22:42:29 +01:00 committed by Michal Simek
parent 038e02455b
commit 8c02d842b6
1 changed files with 1 additions and 1 deletions
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2
drivers/fpga/zynqpl.c
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@ -315,7 +315,7 @@ static u32 *zynq_align_dma_buffer(u32 *buf, u32 len, u32 swap)
if (new_buf > buf) {
debug("%s: Aligned buffer is after buffer start\n",
__func__);
new_buf -= ARCH_DMA_MINALIGN;
new_buf = (u32 *)((u32)new_buf - ARCH_DMA_MINALIGN);
}
printf("%s: Align buffer at %x to %x(swap %d)\n", __func__,
(u32)buf, (u32)new_buf, swap);