First round of new IIO drivers and cleanups for the 3.8 cycle. Here we have * New driver ad5449 with the introduction of a new IIO return type to simplify power of 2 dividers (extremely common case). * Some coccinelle warning fixing patches (dull but worthwhile as make for easier automated testing and cut down on false positives). * Some trivial bits of formatting cleanup and spelling corrections. * Use kcalloc in a few places for semantic reasons. * Stop lis3l02dq driver (soon to be dropped I hope) using now non existent irq_to_gpio. * Some dead code/unused variable removal * Convert a few drivers to generic core provided functions instead of their own versions. So all in all a nice new driver and a lot of worthy but dull cleanup.