linux-kernel - Re: [PATCH 0/5] ARM: OMAP2+: Introduce cpuidle for am335x/am437x

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Date:   Wed, 26 Feb 2020 11:55:16 -0800
From:   santosh.shilimkar@...cle.com
To:     Tony Lindgren <tony@...mide.com>, Dave Gerlach <d-gerlach@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 0/5] ARM: OMAP2+: Introduce cpuidle for am335x/am437x

On 2/26/20 10:43 AM, Tony Lindgren wrote:
> Santosh,
> 
> * Tony Lindgren <tony@...mide.com> [191213 15:04]:
>> * Dave Gerlach <d-gerlach@...com> [191212 19:07]:
>>> Hi,
>>> This series adds support for cpuidle on am335x and am437x using the
>>> cpuidle_arm driver. When testing on am335x-evm and am437x-gp-evm the
>>> follow power consumption reductions are seen on v5.5-rc1 baseline:
>>>
>>>
>>> Idling at command line, CPUFreq userspace governor to 300MHz:
>>>    am335x-evm:
>>>      VDD_MPU: 48 mW -> 5 mW
>>>
>>>    am437x-gp-evm:
>>>      VDD_MPU: 32 mW -> 3 mW
>>>
>>>
>>> Idling at command line, CPUFreq userspace governor to 1GHz:
>>>    am335x-evm:
>>>      VDD_MPU: 313 mW -> 18 mW
>>>
>>>    am437x-gp-evm:
>>>      VDD_MPU: 208 mW -> 10 mW
>>
>> Hey this is great! A beverage on me when we get a chance :)
>>
>> For merging, looks like I should take the series after folks are happy
>> with it. Santosh, care to review and ack if it looks OK?
> 
> Looks like this series of changes is still pending. Care
> to ack?
> 
Was scanning this series today. It looks good to me Tony.

Acked-by: Santosh Shilimkar <ssantosh@...nel.org>