On Thu, Aug 02, 2012 at 04:46:33PM +0530, Laxman Dewangan wrote: > +static const unsigned int tps6586x_sys_voltages[] = { > + 5000000, > +}; Is the system rail actually regulated or is it just a nominal 5V? Normally it's just the raw, unregulated input switched in with FETs or whatever.