DEFAULT_ADDEND
addend = adjust_by_scaled_ppm(DEFAULT_ADDEND, scaled_ppm);
__raw_writel(DEFAULT_ADDEND, &ixp_clock.regs->addend);
addend = adjust_by_scaled_ppm(DEFAULT_ADDEND, scaled_ppm);
iowrite32(DEFAULT_ADDEND, &chip->regs->addend);