linux-kernel - Re: [PATCH v5 0/6] add cpuidle support for Exynos5420

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Date:	Wed, 14 May 2014 16:13:21 +0530
From:	Chander Kashyap <chander.kashyap@...aro.org>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Amit Kucheria <amit.kucheria@...aro.org>,
	Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [PATCH v5 0/6] add cpuidle support for Exynos5420

Hi Daniel,

On 14 May 2014 15:26, Daniel Lezcano <daniel.lezcano@...aro.org> wrote:
> On 05/14/2014 10:03 AM, Chander Kashyap wrote:
>>
>> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>>
>> This patchset adds cpuidle support for Exynos5420 SoC based on
>> generic big.little cpuidle driver.
>
>
> Hi Chander,
>
> just a side question. I am not succeeding to have both cluster A7/A15 with
> the upstream kernel.
>
> How can I test your driver ?

Hmm on octa can be tested only for 4 cores. as cci is disabled.

>
> Did I miss something ?
>
> Thanks
>   -- Daniel
>
>
>> Tested on SMDK5420.
>>
>> This patch set depends on:
>>         1. [PATCH 0/5] MCPM backend for Exynos5420
>>            http://www.spinics.net/lists/arm-kernel/msg331100.html
>> Changelog is in respective patches.
>> Chander Kashyap (5):
>>    driver: cpuidle-big-little: add of_device_id structure
>>    arm: exynos: add generic function to calculate cpu number
>>    cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
>>      driver
>>    driver: cpuidle: cpuidle-big-little: init driver for Exynos5420
>>    exynos: cpuidle: do not allow cpuidle registration for Exynos5420
>>    mcpm: exynos: populate suspend and powered_up callbacks
>>
>>   arch/arm/mach-exynos/cpuidle.c       |    3 +++
>>   arch/arm/mach-exynos/mcpm-exynos.c   |   36
>> ++++++++++++++++++++++++++++++++++
>>   arch/arm/mach-exynos/regs-pmu.h      |    9 +++++++++
>>   drivers/cpuidle/Kconfig.arm          |    2 +-
>>   drivers/cpuidle/cpuidle-big_little.c |   12 +++++++++++-
>>   5 files changed, 60 insertions(+), 2 deletions(-)
>>
>
>
> --
>  <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
>
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>



-- 
with warm regards,
Chander Kashyap
--
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