[Meego-kernel] [PATCH ] Atheros ar1520 GPS: add pause between each read

[Arjan van de Ven]

On 7/24/2011 6:48 PM, Arjan van de Ven wrote:
> On 7/22/2011 5:09 PM, Kao, Allen wrote:
>>
>> From: Allen Kao <akao at qca.qualcomm.com>
>>
>> Date: Sat Jul 23 01:23:15 CST 2011
>>
>> Subject: Atheros ar1520 GPS: add pause between each read
>>
>> Add 5ms-15ms pause between each read process to make performance better
>>
>> This driver work on Acer M&M tablet for MeeGo, which is available on 
>> I2C-0 port.
>>
>
> how does busy waiting for 5 - 15 msec help performance?
> It's busy waiting.. costing tons of power!

eh wait usleep not udelay... so it's not busy waiting.. but how does 
sleeping for this period help performance?