| commit | a0a9983509f45b2225ca87fdcf7b40ea916834ed | [log] [tgz] |
|---|---|---|
| author | David Brownell <david-b@pacbell.net> | Thu Jul 19 01:47:52 2007 -0700 |
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | Thu Jul 19 10:04:43 2007 -0700 |
| tree | a70151c57f184bccd24175fa19a585021e297973 | |
| parent | e53252d97e670a38b1d2e9723b48077bba11ddda [diff] |
gpio calls don't need i/o barriers Clarify that drivers using the GPIO operations don't need to issue io barrier instructions themselves. Previously this wasn't clear, and at least one platform assumed otherwise (and would thus break various otherwise-portable drivers which don't issue barriers). 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>