From: Major Lee <major_lee@wistron.com>
Date: Fri, 10 Dec 2010 10:13:49 +0000 (+0000)
Subject: dw_spi: Fix missing final read in some polling situations
X-Git-Tag: v2.6.37-rc6~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d0b6087f3f2c88caef25e1455ff8db0816d4e11;p=pandora-kernel.git

dw_spi: Fix missing final read in some polling situations

There is a possibility that the last word of a transaction will be lost
if data is not ready.  Re-read in poll_transfer() to solve this issue
when poll_mode is enabled.

Verified on SPI touch screen device.

Signed-off-by: Major Lee <major_lee@wistron.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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