linux-kernel - RE: [PATCH] ARM: exynos_defconfig: Enable cpufreq-dt driver

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Date:	Tue, 11 Aug 2015 16:51:36 +0900
From:	Kukjin Kim <kgene@...nel.org>
To:	'Javier Martinez Canillas' <javier@....samsung.com>,
	'Krzysztof Kozlowski' <k.kozlowski@...sung.com>,
	'Kukjin Kim' <kgene@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	'Bartlomiej Zolnierkiewicz' <b.zolnierkie@...sung.com>,
	'Chanwoo Choi' <cw00.choi@...sung.com>
Subject: RE: [PATCH] ARM: exynos_defconfig: Enable cpufreq-dt driver

Javier Martinez Canillas wrote:
> 
> Hello Krzysztof,
> 
> On 08/11/2015 04:15 AM, Krzysztof Kozlowski wrote:
> > With the latest patches the cpufreq-dt can be used on multiple
> > Exynos SoCs: 3250, 4210, 4212, 4412 and 5250.
> >
> > Enable it along with default ondemand governor to conserve the energy,
> > reduce temperature while maintaining acceptable performance.
> >
> > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > ---
> >  arch/arm/configs/exynos_defconfig | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
> > index 67965cedeb69..2263cd94cb93 100644
> > --- a/arch/arm/configs/exynos_defconfig
> > +++ b/arch/arm/configs/exynos_defconfig
> > @@ -27,6 +27,8 @@ CONFIG_ARM_APPENDED_DTB=y
> >  CONFIG_ARM_ATAG_DTB_COMPAT=y
> >  CONFIG_CMDLINE="root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC1,115200
> init=/linuxrc mem=256M"
> >  CONFIG_CPU_FREQ=y
> > +CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
> > +CONFIG_CPUFREQ_DT=y
> >  CONFIG_CPU_IDLE=y
> >  CONFIG_ARM_EXYNOS_CPUIDLE=y
> >  CONFIG_VFP=y
> >
> 
> Reviewed-by: Javier Martinez Canillas <javier@....samsung.com>
> 
Thanks, applied.

- Kukjin

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