cpg_reg_modify
void cpg_reg_modify(void __iomem *reg, u32 clear, u32 set);
cpg_reg_modify(zclk->reg, zclk->mask,
cpg_reg_modify(zclk->kick_reg, 0, CPG_FRQCRB_KICK);
cpg_reg_modify(pll_clk->pllcr0_reg, CPG_PLLxCR0_NI8,
cpg_reg_modify(pll_clk->pllcr1_reg, CPG_PLLxCR1_NF25,
cpg_reg_modify(pll_clk->pllcr0_reg, 0, CPG_PLLxCR0_KICK);
cpg_reg_modify(zclk->reg, zclk->mask,
cpg_reg_modify(zclk->kick_reg, 0, CPG_FRQCRB_KICK);