[PATCH] ARM: exynos_defconfig: Enable big.LITTLE CPUidle support
Sjoerd Simons
sjoerd.simons at collabora.co.uk
Fri Aug 28 01:51:42 PDT 2015
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 at osg.samsung.com>
>
> ---
> 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.
--
Sjoerd Simons
Collabora Ltd.
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