Atsushi Nemoto 0671981478 atmel_spi: support zero length transfer
A spi transfer with zero length is not invalid.  For example, such
transfer (len == 0 && delay_usecs != 0) can be used to achieve delay
before first CLK edge after chipselect assertion.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:31 -07:00
..
2007-02-14 08:09:53 -08:00
2008-04-28 08:58:31 -07:00
2008-02-06 10:41:11 -08:00
2008-04-28 08:58:31 -07:00
2007-05-08 11:15:15 -07:00
2007-10-16 09:43:10 -07:00
2007-10-29 07:41:33 -07:00