tree fb4df3c93ed711ae22dcd82320133af86bf42568
parent 78a34ae29bf1c9df62a5bd0f0798b6c62a54d520
author Luotao Fu <l.fu@pengutronix.de> 1217285192 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1217287821 -0700

mpc52xx_psc_spi: fix block transfer

The block transfer routine in the mpc52xx psc spi driver misinterpret
the datasheet.  According to the processor datasheet the chipselect is
held as long as the EOF is not written.

Theoretically blocks of any sizes can be transferred in this way.  The
old routine however writes an EOF after every word, which has the size
of size_of_word.  This makes the transfer slow.

Also fixed some duplicate code.

Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: <stable@kernel.org>		[2.6.25.x, 2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>