Regarding GPIO usage in SD MMC code.

From: mindentropy <hidden>
Date: 2011-06-23 20:37:39 

Hi,

  What is the use of acquiring GPIO pins in the mini2440 in the mmc 
driver(http://lxr.linux.no/#linux+v2.6.39/drivers/mmc/host/s3cmci.c#L1563) ? 
Also what purpose does GPIO pins serve in the case of mmc?

Thanks.
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