11 Jun
2012
11 Jun
'12
4:57 p.m.
On Mon, Jun 11, 2012 at 02:24:09PM +0100, Russell King - ARM Linux wrote:
What we need to do is to get rid of this idea that reporting the residue is optional for DMA engine drivers. Let's make it absolutely required in order to support cyclic transfers.
I tend to agree, if we are going to let things not implement this we need to provide an out of bounds way for them to signal that they don't support it and make it an error to use the interface at all. Otherwise the interface complexity increases as you get into special cases and so on. We only need to fix the drivers that are used with ASoC immediately and there's not so many of them which is easier than being forced to get every driver upgraded at once.