linux-kernel - Re: [PATCH 1/4] cpuidle: config: Add SOC_EXYNOS5420 entry to select cpuidle-big-little driver

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Date:	Wed, 23 Apr 2014 11:50:01 +0530
From:	Chander Kashyap <chander.kashyap@...aro.org>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:	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>,
	Chander Kashyap <k.chander@...sung.com>
Subject: Re: [PATCH 1/4] cpuidle: config: Add SOC_EXYNOS5420 entry to select
 cpuidle-big-little driver

Hi Daniel,

On 22 April 2014 16:12, Daniel Lezcano <daniel.lezcano@...aro.org> wrote:
> On 04/21/2014 01:49 PM, Chander Kashyap wrote:
>>
>> Exynos5420 is a big-little SoC from Samsung. It has 4 A15 and 4 A7 cores.
>> In order to use generic cpuidle-big-little driver, this patch adds
>> Exynos5420
>> specific check to initialize generic cpuidle driver.
>>
>> Signed-off-by: Chander Kashyap <chander.kashyap@...aro.org>
>> Signed-off-by: Chander Kashyap <k.chander@...sung.com>
>> ---
>>   drivers/cpuidle/Kconfig.arm |    2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
>> index 97ccc31..5244d87 100644
>> --- a/drivers/cpuidle/Kconfig.arm
>> +++ b/drivers/cpuidle/Kconfig.arm
>> @@ -4,7 +4,7 @@
>>
>>   config ARM_BIG_LITTLE_CPUIDLE
>>         bool "Support for ARM big.LITTLE processors"
>> -       depends on ARCH_VEXPRESS_TC2_PM
>> +       depends on ARCH_VEXPRESS_TC2_PM || SOC_EXYNOS5420
>
>
> For the sake of consistency, I would prefer:
>
> depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS

Yes i will change it.

Thanks
>
> and let the current code (and future platform driver) to handle the loading
> of the driver.
>
>
>>         select ARM_CPU_SUSPEND
>>         select CPU_IDLE_MULTIPLE_DRIVERS
>>         help
>>
>
>
> --
>  <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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