The Spreadtrum DMA can support the link-list transaction mode, which means
DMA controller can do transaction one by one automatically once we linked
these transaction by link-list register.
Signed-off-by: NEric Long <eric.long@spreadtrum.com>
Signed-off-by: NBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: NVinod Koul <vkoul@kernel.org>