diff --git a/drivers/iio/adc/qcom-vadc-common.c b/drivers/iio/adc/qcom-vadc-common.c
index 8ace02030a58..b960995daa96 100644
--- a/drivers/iio/adc/qcom-vadc-common.c
+++ b/drivers/iio/adc/qcom-vadc-common.c
@@ -581,7 +581,8 @@ static int qcom_vadc7_scale_hw_calib_die_temp(
 	} else {
 		vtemp0 = adcmap7_die_temp[i-1].x;
 		voltage = voltage - vtemp0;
-		temp = voltage/(adcmap7_die_temp[i-1].y);
+		temp = div64_s64(voltage * DIE_TEMP_ADC7_SCALE_FACTOR,
+				adcmap7_die_temp[i-1].y);
 		temp += DIE_TEMP_ADC7_SCALE_1 + (DIE_TEMP_ADC7_SCALE_2 * (i-1));
 		*result_mdec = temp;
 	}
diff --git a/drivers/iio/adc/qcom-vadc-common.h b/drivers/iio/adc/qcom-vadc-common.h
index b50ae8748db2..a4d0fc739948 100644
--- a/drivers/iio/adc/qcom-vadc-common.h
+++ b/drivers/iio/adc/qcom-vadc-common.h
@@ -53,9 +53,10 @@
 #define R_PU_100K			100000
 #define RATIO_MAX_ADC7		0x4000
 
-#define DIE_TEMP_ADC7_SCALE_1				-60
-#define DIE_TEMP_ADC7_SCALE_2				20
-#define DIE_TEMP_ADC7_MAX				160
+#define DIE_TEMP_ADC7_SCALE_1				-60000
+#define DIE_TEMP_ADC7_SCALE_2				20000
+#define DIE_TEMP_ADC7_SCALE_FACTOR			1000
+#define DIE_TEMP_ADC7_MAX				160000
 
 /**
  * struct vadc_map_pt - Map the graph representation for ADC channel