diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-04-28 02:14:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:31 -0700 |
| commit | 06719814780da741e7acf587367a86c3965c03a2 (patch) | |
| tree | a6d8aabc4b3068c3679630f318a1706044c195b1 /drivers/spi/spi_butterfly.c | |
| 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>
Diffstat (limited to 'drivers/spi/spi_butterfly.c')
0 files changed, 0 insertions, 0 deletions