qcom_adc5_prescaling_from_dt
ret = qcom_adc5_prescaling_from_dt(varr[0], varr[1]);
ret = qcom_adc5_prescaling_from_dt(varr[0], varr[1]);
EXPORT_SYMBOL(qcom_adc5_prescaling_from_dt);
ret = qcom_adc5_prescaling_from_dt(varr[0], varr[1]);
int qcom_adc5_prescaling_from_dt(u32 num, u32 den);