SI5351_PLLA_SOURCE
SI5351_PLLA_SOURCE | SI5351_PLLB_SOURCE, 0);
u8 mask = (num == 0) ? SI5351_PLLA_SOURCE : SI5351_PLLB_SOURCE;
u8 mask = (hwdata->num == 0) ? SI5351_PLLA_SOURCE : SI5351_PLLB_SOURCE;