PM_IOCTL
rv = zynqmp_call_smc(PM_IOCTL, 0, IOCTL_GET_PLL_FRAC_MODE, pllid, 0, payload, false);
rv = zynqmp_call_smc(PM_IOCTL, 0, IOCTL_GET_PLL_FRAC_DATA, pllid, 0, payload, false);