Re: [PATCH 0/2] arm64: first set of Kconfig patches for Tegra132 support

[Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>]

On Wed, Jan 07, 2015 at 02:25:21PM +0000, Thierry Reding wrote:
> On Wed, Jan 07, 2015 at 11:07:38AM +0000, Will Deacon wrote:
> > On Wed, Jan 07, 2015 at 08:17:29AM +0000, Paul Walmsley wrote:
> > > These patches start the ARM64 Kconfig and defconfig changes to
> > > support the Tegra132 (aka Tegra K1 64-bit) SoC and the NVIDIA
> > > Norrin64 FFD board.
> > > 
> > > Tegra132 support is made conditional on CONFIG_BROKEN, since
> > > there are some patches pending for other maintainers to fix
> > > compilation when CONFIG_ARCH_TEGRA is set during an ARM64 build.
> > > Once those patches have been merged, a subsequent patch will be
> > > sent to remove the CONFIG_BROKEN dependency and to make a few other
> > > defconfig changes that are dependent on CONFIG_ARCH_TEGRA.
> > > 
> > > These patches apply on the arm64 fixes/core branch, commit
> > > 5d96e0cba263.  They have been boot-tested on QEMU 2.2.0 AArch64,
> > > and (after other patches have been applied) have been boot-tested
> > > on the Tegra132 Norrin64 FFD board.
> > 
> > Whilst I'm happy to take the second patch for 3.20 (getting those
> > dependencies building and keeping them building is a Good Thing), can we
> > hold off on the first patch until it's not broken? Having an unconditional
> > depends on BROKEN isn't really that useful.
> 
> The two patches that require the BROKEN dependency are fairly trivial,
> so I don't think it would be a stretch to merge them for 3.20. But they
> apply to different trees (one to the clocksource tree, the other to the
> Tegra tree).
> 
> How do you usually handle the ARM64 patches? Do you manually pick up the
> patches that touch arch/arm64 or would you prefer for me to collect them
> in a pull request?

Either is fine; if it's a large series then a pull request tends to work
better. Catalin is handling the 3.20 merge window (we take it in turns).

> Either way I could probably provide a stable branch for you to pull into
> the arm64 tree to resolve the build dependencies provided that Daniel or
> Thomas will ack the clocksource patch.

Sure; if you have dependencies in other subsystems then we'd need either an
ack from the relevant subsystem maintainer or for them to publish a stable
branch that we can pull in. There's not really a hard-and-fast rule for
this but we can work something out.

Will