[PATCHv2 6/8] ARM: EXYNOS: Enter a15 lowpower mode for Exynos3250 based on Cortex-a7

Chanwoo Choi cwchoi00 at gmail.com
Wed Apr 16 07:39:32 PDT 2014


Hi Tomasz,

On Wed, Apr 16, 2014 at 11:35 PM, Tomasz Figa <t.figa at samsung.com> wrote:
> 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:

OK, I'll fix it.

Best regards,
Chanwoo Choi

>
> /*
>  * 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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