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

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Message-ID: <20191213150344.GJ35479@atomide.com>
Date:   Fri, 13 Dec 2019 07:03:44 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Dave Gerlach <d-gerlach@...com>
Cc:     Santosh Shilimkar <ssantosh@...nel.org>,
        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

* 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?

Regards,

Tony