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f83076add0
Currently, the allocation of DMA channel[0] for memcpy is happening in udma_transfer() for every transfer, which leads to a huge overhead for each transfer, especially in case of nand page reads. So, move this allocation to udma_probe(), as a result, the allocation is done once during probe. Introduce udma_remove() for the cleanup of allocated channel during probe. Signed-off-by: Santhosh Kumar K <s-k6@ti.com> Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>