[Ksummit-2013-discuss] ARM topic: Is DT on ARM the solution, or is there something better?

[Maxime Bizon]

On Thu, 2013-10-24 at 12:22 +0000, David Woodhouse wrote:

> If you are correct to insist that DMA needs yo be supported in the new
> driver *even* with old firmware, then yes, maybe.

if DMA gives a performance boost for all workloads, what is the argument
for not always enabling it ?

> The alternative is a quirk to "fix" the DT up on the affected boards and
> not actually doing the special cases in the driver itself. But that can be
> seen as an implementation detail.

I don't understand why having the soc-foo.h with the internal interrupt
mapping in the kernel tree is a no-no, whereas it's ok to add the
missing part of it in the form of fixups or directly in driver code.

-- 
Maxime