Re: CPUIdle for Exynos5422 Odroid-XU3/XU4 boards.

[Krzysztof Kozlowski <k.kozlowski@samsung.com>]

On 21.08.2015 03:15, Anand Moon wrote:
> Hi Daniel,
> 
> On 20 August 2015 at 21:40, Daniel Lezcano <daniel.lezcano@free.fr> wrote:
>> On 08/20/2015 12:54 PM, Anand Moon wrote:
>>>
>>> Hello Krzysztof/Kukjim,
>>>
>>> CPUIdle seen to be not working for Exynos5422 Odroid boards.
>>>
>>> Is their any way this feature will be implemented in the future.
>>
>>
>> Yeah a good willing to fix the bl1. More than one year asking for that !
>> nooo way !!
>>
>> Your answer is at the end of
>> http://lists.infradead.org/pipermail/linux-arm-kernel/2015-June/350632.html
>>
>>
> 
> Thanks for the explanation.
> 
> I was just referring following the source code.
> 
> https://github.com/hardkernel/linux/blob/odroidxu3-3.10.y/arch/arm/mach-exynos/cpuidle-exynos5422.c
> 
> It seem that cpufreq and cpuidle go hand in hand.

Bartlomiej was working on cpufreq for Exynos542x:
http://lkml.iu.edu/hypermail/linux/kernel/1504.2/03139.html

It would be nice to have also cpuidle and suspend features working on
Exynos542x family but this depends on firmware. Some time ago I
struggled with suspend on Arndale Octa (Exynos5420) and I failed. I
think the firmware is the issue here.

Actually I am not sure what is your question Anand. You are asking if
someone plans to do this?

Best regards,
Krzysztof