/* Compute PLL settings (M, N, R) F_VCO = (F_BASE * M) / N F_OUT = F_VCO / (2^R)  */
static u32 abs_diff(u32 a, u32 b)
/* Compute PLL settings (M, N, R) F_VCO = (F_BASE * M) / N F_OUT = F_VCO / (2^R)  */
static u32 abs_diff(u32 a, u32 b)
{
	return (a > b) ? (a - b) : (b - a);
}