On Thursday 28 February 2013, Shawn Guo wrote:
> On Wed, Feb 27, 2013 at 08:54:18PM +0000, Arnd Bergmann wrote:
> > On Wednesday 27 February 2013, Shawn Guo wrote:
> >
> > I wonder if we should leave support for old device trees files around,
> > at least for a while. Your patch removes a lot of unnecessary code if
> > we decide not to worry about backwards compatibility here, but I could
> > imagine that we see a few surprises here.
> >
> I'm less concerned by that at this point. Though platform mxs has been
> fully converted to device tree, device tree is still quite new for the
> platform. The incompatible device tree should be acceptable,
> considering we have noticed that when adding the temporary DMA binding
> for client devices.
>
> /*
> * TODO: This is a temporary solution and should be changed
> * to use generic DMA binding later when the helper get in.
> */
>
> Unless we have these TODO remarks leave in the tree forever, we will
> break old device tree sooner or later anyway. And I would have it
> happen sooner than later.
>
> And I would start thinking about maintaining the device tree
> compatibility for mxs after generic DMA binding adoption.
Right. It's your decision anyway, and removing the code as early
as possible has some advantages as well.
Arnd
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