Re: [PATCH 3/9] arm: add call to CPU idle quirks handler

Arnd Bergmann
2015-06-23T21:59:40Z

On Tuesday 23 June 2015 23:19:41 Paul Osmialowski wrote:
> Some SoCs need additional actions to be performed after arch idle,
> e.g. Kinetis requires invalidation of the I/D bus cache.
>
> Such handler could be held in provided <mach/idle.h> header file.
>
> Signed-off-by: Paul Osmialowski <pawelo@king.net.pl>
> ---
> arch/arm/Kconfig | 7 +++++++
> arch/arm/kernel/process.c | 7 +++++++
> 2 files changed, 14 insertions(+)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 8e3a833..8ef8f8f 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -98,6 +98,13 @@ config ARM_HAS_SG_CHAIN
> config NEED_SG_DMA_LENGTH
> bool
>
> +config NEED_MACH_IDLE_H
> + bool
> +
> +config ARM_CPU_IDLE_QUIRKS
> + bool
> + select NEED_MACH_IDLE_H
> +

We're not adding header files like this, please come up
with another solution. How about a cpuidle driver, or
possibly just overriding arm_pm_idle()?

Arnd