[PATCH v2 0/5] arm: mvebu: add support for local timer for Armada 370/XP

Jason Cooper
2013-01-30T19:52:36Z

Thomas Gleixner, John Stultz,

I'm getting close to pulling this series in through arm-soc. Would you
prefer to take the clocksource patches through your tree, or provide an
Acked-by and I can take them through mvebu/arm-soc?

I'm comfortable with either, if you decide to take them, please let me
know which tree and branch you put them in so I can properly depend on
them.

thx,

Jason.

On Fri, Jan 25, 2013 at 06:32:40PM +0100, Gregory CLEMENT wrote:
> Hello,
>
> The Armada XP SoCs comes with private timers. This allows us to use
> local timers through CONFIG_LOCAL_TIMERS and as stated in the kconfig
> help, it prevents a "thundering herd" at every timer tick.
>
> Armada 370 also have these private timers, and even if it comes only
> with a single CPU, the feature is also enabled for this SoC to keep
> the code generic.
>
> In order to be able to use the local timer, I also had to add the
> support for the per-CPU interrupts.
>
> There are not many changes since the first version (see the changelog
> below), I hope it means that everybody is happy with this patch
> set. If it is, so please could you give your acked-by. I especially
> expect the acked-by from John Stultz then I will feel more comfortable
> to ask Jason to pull it.
>
> This patch set is based on 3.8-rc4 and is obviously 3.9 material. The
> git branch called local_timer is available at:
> https://github.com/MISL-EBU-System-SW/mainline-public.git.
>
> Thanks,
>
> Changelog:
> V1->V2:
> - Fixed unneeded empty line and wrong indentation.
> - Made percpu_armada_370_xp_evt a static variable
> - Removed the patch "arm: kconfig: don't select TWD with local timer
> for Armada 370/XP" from the series. There is still some improvement
> possible in this area, but this patch set not depends on it.
>
> Gregory CLEMENT (5):
> arm: mvebu: Add support for local interrupt
> clocksource: time-armada-370-xp: add local timer support
> arm: mvebu: update defconfig with local timer support
> arm: mvebu: update DT to support local timers
> clocksource: update and move armada-370-xp-timer documentation to
> timer directory
>
> .../bindings/arm/armada-370-xp-timer.txt | 12 --
> .../bindings/timer/marvell,armada-370-xp-timer.txt | 15 ++
> arch/arm/boot/dts/armada-370-xp.dtsi | 5 +-
> arch/arm/configs/mvebu_defconfig | 1 -
> arch/arm/mach-mvebu/irq-armada-370-xp.c | 15 +-
> drivers/clocksource/time-armada-370-xp.c | 150 +++++++++++++++-----
> 6 files changed, 141 insertions(+), 57 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/arm/armada-370-xp-timer.txt
> create mode 100644 Documentation/devicetree/bindings/timer/marvell,armada-370-xp-timer.txt
>
> --
> 1.7.9.5
>
>
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