On Mon, Jun 18, 2012 at 10:11:28AM +0800, Axel Lin wrote:
> For table based mapping, we can calculate voltage difference by below equation:
> abs(rdev->desc->volt_table[new_selector] - rdev->desc->volt_table[old_selector])

I've applied this since it's incrementally an improvement but really the
fix here should be to just do this in terms of list_voltage() - call
that on the two selectors and then do the multiplication.