CBF_MUX_PARENT_MASK
return FIELD_GET(CBF_MUX_PARENT_MASK, val);
val = FIELD_PREP(CBF_MUX_PARENT_MASK, index);
return regmap_update_bits(clkr->regmap, mux->reg, CBF_MUX_PARENT_MASK, val);
regmap_update_bits(regmap, CBF_MUX_OFFSET, CBF_MUX_PARENT_MASK, 0x1);