diff options
| author | David Brownell <dbrownell@users.sourceforge.net> | 2008-07-21 14:21:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-22 09:59:41 -0700 |
| commit | 1673ad52bd9a3c747e596a76e65c55981ea651e3 (patch) | |
| tree | 9e018b1d511a96f745fc870bfdf8bf53759c25ae /kernel | |
| parent | 0c36ec31473593aa937ff04f3b3b630e81512734 (diff) | |
gpio: pcf857x: add lock and handle more chips
Two small updates to the pcf857x driver: (a) the max732[89] chips are
also second sources for the pcf8574/a, and (b) add a mutex to prevent
trashing the cached state. Adding the lock is effectively a bugfix,
although it seems unlikely that anyone would have run into the issue it
protects against.
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>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions