pre 4.9-rc dma regression, imx6 sound etc

From: Mika PenttilÃ
Date: Wed Oct 12 2016 - 09:59:10 EST


Bisected that commit 5881826 - " dmaengine: imx-sdma - update the residue calculation for cyclic channels" is first bad commit to cause audio regression on imx6q, sgtl5000 codec. It causes audible disturbing background noise when playing wavs.

Unfortunately, reverting only 5881826 causes uarts to fail, so another fix is needed.