diff --git a/drivers/iio/adc/qcom-vadc-common.c b/drivers/iio/adc/qcom-vadc-common.c
index 6c47d028a50c..ed5d91cf9134 100644
--- a/drivers/iio/adc/qcom-vadc-common.c
+++ b/drivers/iio/adc/qcom-vadc-common.c
@@ -582,6 +582,10 @@ static int qcom_vadc_scale_hw_smb1398_temp(
 				const struct u32_fract *prescale,
 				const struct adc5_data *data,
 				u16 adc_code, int *result_mdec);
+static int qcom_vadc_scale_hw_pm2250_s3_die_temp(
+				const struct u32_fract *prescale,
+				const struct adc5_data *data,
+				u16 adc_code, int *result_mdec);
 static int qcom_vadc_scale_hw_chg5_temp(
 				const struct u32_fract *prescale,
 				const struct adc5_data *data,
@@ -619,6 +623,7 @@ static struct qcom_adc5_scale_type scale_adc5_fn[] = {
 	[SCALE_HW_CALIB_PM5_CHG_TEMP] = {qcom_vadc_scale_hw_chg5_temp},
 	[SCALE_HW_CALIB_PM5_SMB_TEMP] = {qcom_vadc_scale_hw_smb_temp},
 	[SCALE_HW_CALIB_PM5_SMB1398_TEMP] = {qcom_vadc_scale_hw_smb1398_temp},
+	[SCALE_HW_CALIB_PM2250_S3_DIE_TEMP] = {qcom_vadc_scale_hw_pm2250_s3_die_temp},
 	[SCALE_HW_CALIB_PM7_SMB_TEMP] = {qcom_vadc_scale_hw_pm7_smb_temp},
 	[SCALE_HW_CALIB_PM7_CHG_TEMP] = {qcom_vadc_scale_hw_pm7_chg_temp},
 };
@@ -1059,6 +1064,35 @@ static int qcom_vadc_scale_hw_smb1398_temp(
 	return 0;
 }
 
+static int qcom_vadc_scale_hw_pm2250_s3_die_temp(
+				const struct u32_fract *prescale,
+				const struct adc5_data *data,
+				u16 adc_code, int *result_mdec)
+{
+	s64 voltage = 0, adc_vdd_ref_mv = 1875;
+
+	if (adc_code > VADC5_MAX_CODE)
+		adc_code = 0;
+
+	/* (ADC code * vref_vadc (1.875V)) / full_scale_code */
+	voltage = (s64) adc_code * adc_vdd_ref_mv * 1000;
+	voltage = div64_s64(voltage, data->full_scale_code_volt);
+	if (voltage > 0) {
+		voltage *= prescale->denominator;
+		voltage = div64_s64(voltage, prescale->numerator);
+	} else {
+		voltage = 0;
+	}
+
+	voltage = PMIC5_PM2250_S3_DIE_TEMP_CONSTANT - voltage;
+	voltage *= 100000;
+	voltage = div64_s64(voltage, PMIC5_PM2250_S3_DIE_TEMP_SCALE_FACTOR);
+
+	*result_mdec = voltage;
+
+	return 0;
+}
+
 static int qcom_vadc_scale_hw_chg5_temp(
 				const struct u32_fract *prescale,
 				const struct adc5_data *data,
diff --git a/include/linux/iio/adc/qcom-vadc-common.h b/include/linux/iio/adc/qcom-vadc-common.h
index 3ed870a1eb6b..6d90caa91b45 100644
--- a/include/linux/iio/adc/qcom-vadc-common.h
+++ b/include/linux/iio/adc/qcom-vadc-common.h
@@ -47,6 +47,9 @@
 #define PMIC5_SMB1398_TEMP_CONSTANT		268235
 #define PMIC5_SMB1398_TEMP_SCALE_FACTOR		340
 
+#define PMIC5_PM2250_S3_DIE_TEMP_SCALE_FACTOR	187263
+#define PMIC5_PM2250_S3_DIE_TEMP_CONSTANT	720100
+
 #define PMI_CHG_SCALE_1				-138890
 #define PMI_CHG_SCALE_2				391750000000LL
 
@@ -126,6 +129,8 @@ struct vadc_linear_graph {
  *	use voltage scaling.
  * SCALE_HW_CALIB_CUR_RAW: Returns result in microamperes for PMIC7 channels
  *	that use raw ADC code.
+ * SCALE_HW_CALIB_PM2250_S3_DIE_TEMP: Returns result in millidegrees for
+ *	S3 die temperature channel on PM2250.
  */
 enum vadc_scale_fn_type {
 	SCALE_DEFAULT = 0,
@@ -149,6 +154,7 @@ enum vadc_scale_fn_type {
 	SCALE_HW_CALIB_PM7_CHG_TEMP,
 	SCALE_HW_CALIB_CUR,
 	SCALE_HW_CALIB_CUR_RAW,
+	SCALE_HW_CALIB_PM2250_S3_DIE_TEMP,
 	SCALE_HW_CALIB_INVALID,
 };