Staging driver fixes for 3.7-rc3

Here are some staging driver fixes for your 3.7-rc tree.

Nothing major here, a number of iio driver fixups that were causing problems,
some comedi driver bugfixes, and a bunch of tidspbridge warning squashing and
other regressions fixed from the 3.6 release.

All have been in the linux-next releases for a bit.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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