tree 8ab19ceb150fc730169f485c105591e11a3e31e6
parent 8d1b76f031ce60c50d03674e6d1db0c5e5f55945
author M'boumba Cedric Madianga <cedric.madianga@gmail.com> 1481636448 +0100
committer Vinod Koul <vinod.koul@intel.com> 1483415597 +0530

dmaengine: stm32-dma: Fix residue computation issue in cyclic mode

This patch resolves the residue computation issue detected in cyclic mode.
Now, in cyclic mode, we increment next_sg variable as soon as a period is
transferred instead of after pushing a new sg request.
Then, we take into account that after transferring a complete buffer,
the next_sg variable is equal to 0.

Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Reviewed-by: Ludovic BARRE <ludovic.barre@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>