CPG_PLLxCR0_NI8
cpg_reg_modify(pll_clk->pllcr0_reg, CPG_PLLxCR0_NI8,
FIELD_PREP(CPG_PLLxCR0_NI8, ni - 1));
ni = (FIELD_GET(CPG_PLLxCR0_NI8, cr0) + 1) * 2;