tree b04e2fdc51a8f761b432be83c379eedce17e3396
parent 54efdfeb49f03adfd0196935335890469ed314b9
author Major Lee <major_lee@wistron.com> 1291976029 +0000
committer Linus Torvalds <torvalds@linux-foundation.org> 1292381339 -0800

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>