[Ksummit-2013-discuss] DT bindings as ABI [was: Do we have people interested in device tree janitoring / cleanup?]

[Jason Cooper]

On Thu, Jul 25, 2013 at 10:53:15PM +0100, Ben Hutchings wrote:
> On Thu, Jul 25, 2013 at 04:32:28PM -0400, Jason Cooper wrote:
> [...]
> > One of the things I've been trying to square up in my head is how to
> > retain the history of the binding when moving to the new tree.  My
> > current idea was to clone the kernel tree, add one patch deleting
> > everything but the bindings and dts files, and one more patch moving
> > things where we want them (arch/{powerpc,arm}/boot/dts -> dts).
> > 
> > Then, as needed, we could merge a kernel version tag and delete
> > everything we don't need (code) in the merge commit.
> > 
> > The downside of this is it would be messy, the upside is that we could
> > closely track the kernel tree (until the bindings and dts are moved
> > out), and retain the history of the bindings and dts files.
> [...]
> 
> It's *extremely* messy, but 'git filter-branch' might help to make a
> clean tracking branch preserving history of just DT files.  David
> Woodhouse did something like that for the linux-firmware repo
> initially.

ok, but once that is setup, asking patch submitters to keep binding doc
and dts file changes in separate patches from code changes would allow
us to put those patches in a separate branch, mergable into both trees.

thx,

Jason.