On Wed, Nov 08, 2017 at 08:49:55PM +0000, Levin, Alexander (Sasha Levin) wrote: > From: Jiada Wang <jiada_wang@xxxxxxxxxx> > > [ Upstream commit 66459c5a50a787c474b734b586328f7111ab6df0 ] > > Previously DMA watermark level is configured to fifosize/2, > DMA mode can be used only when transfer length can be divided > by 'watermark level * bpw', which makes DMA mode not pratical. > > This patch adjusts watermark level to largest number (no bigger > than fifosize/2) which can divide 'tranfer length / bpw' for > each transfer. This seems like an optimization not a bug fix...
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