Re: [PATCH 3/6] arm: kconfig: don't select TWD with local timer for Armada 370/XP

From: Arnd Bergmann
Date: Tue Jan 22 2013 - 16:20:16 EST


On Tuesday 22 January 2013, Rob Herring wrote:
> No, I expect all future platforms will have architected timers. TWD is
> pretty much A9 and A5 only I believe. Same with SCU. I've probably
> missed some in my list.

Ah, I was incorrectly assuming that TWD was referring to the architected
timers, sorry about that.

Maybe we should do this differently then and do the more logical

config LOCAL_TIMERS
bool

config ARM_TWD
bool "ARM TWD local timer"
depends on SMP && CPU_V7
select LOCAL_TIMERS

config EXYNOS4_MCT
bool "Samsung Exynos4 MCT Timer"
depends on SMP && ARCH_EXYNOS
select LOCAL_TIMERS

config MSM_LOCAL_TIMER
bool "Qualcomm MSM Local Timer"
depends on SMP && ARCH_MSM
select LOCAL_TIMERS

That way we have no implicit assumptions. Everything will still work if you
disable local timers, but of course we will enable them in the defconfigs.

Arnd
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