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

From: santosh . shilimkar
Date: Wed Feb 26 2020 - 14:55:27 EST


On 2/26/20 10:43 AM, Tony Lindgren wrote:
Santosh,

* Tony Lindgren <tony@xxxxxxxxxxx> [191213 15:04]:
* Dave Gerlach <d-gerlach@xxxxxx> [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@xxxxxxxxxx>