da7219_set_pll
da7219_set_pll(component, DA7219_SYSCLK_PLL,
da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0);
ret = da7219_set_pll(component, source, fout);
int da7219_set_pll(struct snd_soc_component *component, int source, unsigned int fout);