Re: [PATCH] ARM: exynos_defconfig: Enable big.LITTLE CPUidle support

From: Javier Martinez Canillas
Date: Fri Aug 28 2015 - 05:30:36 EST

Hello Sjoerd,

On 08/28/2015 10:51 AM, Sjoerd Simons wrote:
> On Fri, 2015-08-28 at 10:16 +0200, Javier Martinez Canillas wrote:
>> Some Exynos big.LITTLE boards (i.e: Exynos5420 and Exynos5800 based
>> Chromebooks) have proper firmware that allow the big.LITTLE CPUidle
>> driver to work correctly, so enable support for this.
>> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
>> ---
>> Kukjin and Krzysztof,
>> As you know there are other boards like the Exynos5422 based Odroid
>> XU{3,4}
>> whose firmware is broken due leaving CCI in secure mode which means
>> that the
>> kernel MCPM support can't properly manage CCI.
>> So if you pick this patch, it should be tested in kernelci before
>> appearing
>> in linux-next to prevent any boot issues.
> I've pushed this patch into Collabora's for-next branch, which should
> get picked up by kernelci soonish.

Awesome, thanks a lot for your help!

Best regards,
Javier Martinez Canillas
Open Source Group
Samsung Research America
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