On Wed, Jun 27, 2012 at 4:30 PM, Russell King - ARM Linux
[off-list ref] wrote:

Well, the DMA engine API gets stubbed out when no DMA engine is selected,
so I'm not sure why spi-pl022 needs all those ifdefs (yes, you may wish
to do that if you want to shrink your driver private struct size.)

Provided the driver is capable of working without DMA engine, I don't see
any reason what so ever to make that driver select or depend on DMA engine
stuff.

Ok, so this one can be dropped.

It was proposed because of an build error in the past, but it's not
happening anymore.