[PATCHv2 6/8] ARM: EXYNOS: Enter a15 lowpower mode for Exynos3250 based on Cortex-a7
Tomasz Figa
t.figa at samsung.com
Wed Apr 16 07:35:03 PDT 2014
Hi Chanwoo,
On 15.04.2014 03:59, Chanwoo Choi wrote:
> This patch decide proper lowpower mode of either a15 or a9 according to own ID
> from Main ID register.
>
> Signed-off-by: Chanwoo Choi <cw00.choi at samsung.com>
> Acked-by: Kyungmin Park <kyungmin.park at samsung.com>
> ---
> arch/arm/mach-exynos/hotplug.c | 16 +++++++++++-----
> 1 file changed, 11 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c
> index 5eead53..99e54e0 100644
> --- a/arch/arm/mach-exynos/hotplug.c
> +++ b/arch/arm/mach-exynos/hotplug.c
> @@ -135,16 +135,22 @@ void __ref exynos_cpu_die(unsigned int cpu)
> int primary_part = 0;
>
> /*
> - * we're ready for shutdown now, so do it.
> - * Exynos4 is A9 based while Exynos5 is A15; check the CPU part
> + * we're ready for shutdown now, so do it. Exynos4 is A9 based
> + * while Exynos5 is A15/Exynos3 is A7; check the CPU part
> * number by reading the Main ID register and then perform the
> * appropriate sequence for entering low power.
If changing this comment anyway, I'd suggest removing particular SoC
series from it and also correct writing style. My suggestion is:
/*
* Prepare the CPU for shutting down. The required sequence of
* operations depends on core type. CPUID part number can be used to
* determine the right way.
*/
Best regards,
Tomasz
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