PDMA_ALIGNMENT
!IS_ALIGNED(period_len, 1 << PDMA_ALIGNMENT))
pdev->slave.copy_align = PDMA_ALIGNMENT;
#define PDMA_MAX_DESC_BYTES (PXA_DCMD_LENGTH & ~((1 << PDMA_ALIGNMENT) - 1))
if (!IS_ALIGNED(dma_src, 1 << PDMA_ALIGNMENT) ||
!IS_ALIGNED(dma_dst, 1 << PDMA_ALIGNMENT))