John Crispin a941b34008 ramips: use transfer_one instead of transfer_one_message on rt2880 spi
* use kernel buildin transfer_one_message. we only need to implement
transfer_one and set_cs function
* should support use gpio as cs pin
* deselected the spi device when setup and add debug info
* only reset device when first driver probe

Signed-off-by: Michael Lee <igvtee@gmail.com>

SVN-Revision: 47579
2015-11-22 11:49:04 +00:00
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