VCNL4040_ALS_CONF_IT
ret = FIELD_GET(VCNL4040_ALS_CONF_IT, ret);
regval = FIELD_PREP(VCNL4040_ALS_CONF_IT, i);
regval |= (ret & ~VCNL4040_ALS_CONF_IT);
it = FIELD_GET(VCNL4040_ALS_CONF_IT, ret);
it = FIELD_GET(VCNL4040_ALS_CONF_IT, ret);