[PATCH 2/2] ARM: iMX5 BBG: add cpuidle driver parameters
robherring2 at gmail.com
Tue Feb 8 12:50:27 EST 2011
On 02/08/2011 09:51 AM, Yong Shen wrote:
> Hi Arnaud,
> I also took a while to think about this before posting patches. I prefer
> to put it in board related code since the various PMIC used on each
> boards may have influence on cpuidle latency or other charactors,
> although it could be minor.
But you are not going to be doing voltage scaling in idle. Is it even
possible to do sleeping operations like accessing a PMIC in idle?
The core is powergated, so lowering voltage would not help. Doing bus
scaling or DDR self-refresh are the only likely additional operations.
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