stm32_dma_mode
static enum stm32_dma_mode stm32_cryp_dma_check_sg(struct scatterlist *test_sg, size_t len,
static enum stm32_dma_mode stm32_cryp_dma_check(struct stm32_cryp *cryp, struct scatterlist *in_sg,
enum stm32_dma_mode ret = DMA_PLAIN_SG;
enum stm32_dma_mode dma_mode;