[flashrom] [RFC] Merging EC support from chromium trees

Stefan Tauner stefan.tauner at student.tuwien.ac.at
Tue Jan 3 23:44:41 CET 2012

On Tue, 03 Jan 2012 20:59:56 +0100
Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net> wrote:

> The authoritative svn master tree at flashrom.org and the Google
> ChromiumOS flashrom tree have diverged quite a bit in terms of hardware
> support, especially for Embedded Controllers (EC). That is unfortunate
> because all interface rework and all cleanups in main flashrom have to
> be ported by hand (if they are done at all) to the ChromiumOS tree with
> some potential for errors during merge/porting.
> The EC support code in the ChromiumOS tree needs a few cleanups to be
> closer to the style and durability requirements we have for flashrom.org
> svn, but keeping the code outside our tree won't improve it. The same
> argument applies to Nvidia Tegra support.
> The Linux kernel has a staging directory, I propose we use a similar
> mechanism for flashrom (without the special staging/ directory, though):
> Merge driver files as-is and clean them up in our tree, but have all
> hooks for the staging code inside #ifdef EXPERIMENTAL or somesuch.
> Any cleanups for that code can happen in flashrom.org svn, and whenever
> Google wants to merge the cleanups into their tree, they can do so
> easily. If code is determined to be ready for inclusion, we can simply
> remove #ifdef EXPERIMENTAL from its hooks.
> Comments? Thoughts?
> Regards,
> Carl-Daniel

*stand-alone* drivers could also be just disabled in the makefile by
default. either way those are not a problem and i support your plan.
i am not sure if other code that is more tightly integrated into
other files as well can be dealt with appropriately with an #ifdef or
if that would clutter the files too much. OTOH this might not be
necessary... i guess we can discuss this in a review prior to
inclusion... you dont plan to just drop them in i hope? :)

Kind regards/Mit freundlichen Grüßen, Stefan Tauner

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