CCW_BLOCK_SIZE
#define NUM_CCW (int)(CCW_BLOCK_SIZE / sizeof(struct mxs_dma_ccw))
CCW_BLOCK_SIZE,
dma_free_coherent(mxs_dma->dma_device.dev, CCW_BLOCK_SIZE,
dma_free_coherent(mxs_dma->dma_device.dev, CCW_BLOCK_SIZE,