| commit | 06719814780da741e7acf587367a86c3965c03a2 | [log] [tgz] |
|---|---|---|
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | Mon Apr 28 02:14:19 2008 -0700 |
| committer | Linus Torvalds <torvalds@linux-foundation.org> | Mon Apr 28 08:58:31 2008 -0700 |
| tree | a6d8aabc4b3068c3679630f318a1706044c195b1 | |
| parent | b687d2a8f8d46921ac5e80bf77967688afce68e2 [diff] |
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>