From 319fb0d21907f771d8ccdb6177fb2fcafabc6ab4 Mon Sep 17 00:00:00 2001
From: chao bi <chao.bi@intel.com>
Date: Thu, 25 Oct 2012 09:02:32 +0800
Subject: [PATCH] serial: ifx6x60: different SPI word width configure requires
 different swap process

SPI protocol driver only provide one function (swap_buf()) to swap SPI
data into big endian format, which is only available when SPI
controller's word width is 16 bits. But word width could be configured
as 8/16/32 bits, different word width configure should be mapped to
different swap methods.This patch is to make SPI protocol driver choose
the right swap function corresponding to SPI word width configuration.

cc: liu chuansheng <chuansheng.liu@intel.com>
cc: Chen Jun <jun.d.chen@intel.com>
Signed-off-by: channing <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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