prcmu_config_clkout
return prcmu_config_clkout(clk->clkout_id, clk->source, clk->divider);
ret = prcmu_config_clkout(clk->clkout_id, clk->source, 0);
int prcmu_config_clkout(u8 clkout, u8 source, u8 div);
int prcmu_config_clkout(u8 clkout, u8 source, u8 div);