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authorDavid Fries <david@fries.net>2008-10-15 22:05:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 11:21:50 -0700
commit1f4ec2d7f6c4560a9d0c1abab2e8effe9ba93921 (patch)
tree10e0ab98846a7bd0bb7f8a68a4c104675109256a /firmware/yamaha
parent95cfaebf61dff28612bd280d89efc6e2c6716dfa (diff)
W1: ds2490.c add support for strong pullup
Add strong pullup support for ds2490 driver, also drop mdelay(750), which busy waits, usage in favour of msleep for long delays. Now with msleep only being called when the strong pullup is active, one wire bus operations are only taking minimal system overhead. The new set_pullup will only enable the strong pullup when requested, which is expected to be the only write operation that will benefit from a strong pullup. Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'firmware/yamaha')
0 files changed, 0 insertions, 0 deletions