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

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Hi Krzysztof,

On 21 August 2015 at 06:25, Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx> wrote:
> On 21.08.2015 03:15, Anand Moon wrote:
>> Hi Daniel,
>>
>> On 20 August 2015 at 21:40, Daniel Lezcano <daniel.lezcano@xxxxxxx> 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?

Yes I am asking are their plans to implement cpufreq and cpuidle simultaneously.

-Anand Moon
>
> Best regards,
> Krzysztof
>
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