tree 804eaf65f578d25309d546592ada439d168d19b0
parent dccd573bb02aa011a4a7146c02c409ac0bd722a0
author David Brownell <david-b@pacbell.net> 1184670243 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1184692984 -0700

SPI: add 3wire mode flag

Add a new spi->mode bit: SPI_3WIRE, for chips where the SI and SO signals
are shared (and which are thus only half duplex).  Update the LM70 driver
to require support for that hardware mode from the controller.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>