i2s_pll_write
i2s_pll_write(clk, PLL_IDIV_REG, pll_cfg[i].idiv);
i2s_pll_write(clk, PLL_FBDIV_REG, pll_cfg[i].fbdiv);
i2s_pll_write(clk, PLL_ODIV0_REG, pll_cfg[i].odiv0);
i2s_pll_write(clk, PLL_ODIV1_REG, pll_cfg[i].odiv1);