dma_alloc_coherent allocates minimum of page size. When TSPP output buffers are smaller than page size memory is heavily wasted using dma_alloc_coherent. DMA pools are designed to handle allocations smaller than page size. Change-Id: I942cc8cdc9d57ec3b87b14a6601dc4b3e642e7da Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>