Second round of new IIO drivers and cleanups for the 3.8 cycle. Usual mixed bag of cleanups and minor improvements including one reversion for a patch in the previous series. * adt7310 and adt7410 drivers merged into one. * Revert use devm_kcalloc in at91_adc (because it doesn't exist) * unlocking fix for error path in the ad5449 * isl29018 suspend and resume support. * improved pseudo floating point parsing for info_mask write attributes (and hence into write_raw). Reject some messed up strings.